./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-acceleration/array_3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 10:43:46,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:43:46,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 10:43:46,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:43:46,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:43:46,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:43:46,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:43:46,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:43:46,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:43:46,770 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:43:46,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:43:46,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:43:46,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:43:46,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:43:46,771 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:43:46,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 10:43:46,772 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:43:46,773 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:43:46,773 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:43:46,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:43:46,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:43:46,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:43:46,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:43:46,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:43:46,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:43:46,773 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 10:43:46,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 10:43:46,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:43:46,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:43:46,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:43:46,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:43:46,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:43:46,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:43:46,774 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/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 -> 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 [2025-03-04 10:43:46,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:43:46,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:43:46,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:43:46,997 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:43:46,997 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:43:46,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/array_3-1.i [2025-03-04 10:43:48,076 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac5ab815/187cc11c307a4c5488ef4910a1190f68/FLAG9ad9f0965 [2025-03-04 10:43:48,260 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:43:48,260 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_3-1.i [2025-03-04 10:43:48,271 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac5ab815/187cc11c307a4c5488ef4910a1190f68/FLAG9ad9f0965 [2025-03-04 10:43:48,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac5ab815/187cc11c307a4c5488ef4910a1190f68 [2025-03-04 10:43:48,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:43:48,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:43:48,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:43:48,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:43:48,321 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:43:48,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3476fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48, skipping insertion in model container [2025-03-04 10:43:48,324 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:43:48,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:43:48,447 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:43:48,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:43:48,472 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:43:48,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48 WrapperNode [2025-03-04 10:43:48,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:43:48,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:43:48,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:43:48,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:43:48,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,492 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2025-03-04 10:43:48,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:43:48,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:43:48,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:43:48,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:43:48,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,511 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-03-04 10:43:48,513 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,517 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,521 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:43:48,522 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:43:48,522 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:43:48,522 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:43:48,523 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (1/1) ... [2025-03-04 10:43:48,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:43:48,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:43:48,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 10:43:48,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:43:48,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 10:43:48,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 10:43:48,618 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:43:48,620 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:43:48,736 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-04 10:43:48,740 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:43:48,747 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:43:48,747 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:43:48,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:43:48 BoogieIcfgContainer [2025-03-04 10:43:48,748 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:43:48,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:43:48,750 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:43:48,753 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:43:48,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:43:48" (1/3) ... [2025-03-04 10:43:48,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb1018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:43:48, skipping insertion in model container [2025-03-04 10:43:48,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:43:48" (2/3) ... [2025-03-04 10:43:48,755 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb1018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:43:48, skipping insertion in model container [2025-03-04 10:43:48,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:43:48" (3/3) ... [2025-03-04 10:43:48,756 INFO L128 eAbstractionObserver]: Analyzing ICFG array_3-1.i [2025-03-04 10:43:48,768 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:43:48,769 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array_3-1.i that has 1 procedures, 23 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-03-04 10:43:48,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:43:48,810 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;@68a6a04b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:43:48,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-04 10:43:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 22 states have internal predecessors, (28), 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) [2025-03-04 10:43:48,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 10:43:48,818 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:43:48,819 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 10:43:48,819 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)] === [2025-03-04 10:43:48,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:43:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1815231, now seen corresponding path program 1 times [2025-03-04 10:43:48,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:43:48,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467750684] [2025-03-04 10:43:48,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:48,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:43:48,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 10:43:48,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 10:43:48,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:48,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:43:49,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:43:49,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467750684] [2025-03-04 10:43:49,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467750684] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:43:49,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:43:49,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:43:49,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506682338] [2025-03-04 10:43:49,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:43:49,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:43:49,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:43:49,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:43:49,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:43:49,027 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2025-03-04 10:43:49,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:43:49,086 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2025-03-04 10:43:49,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:43:49,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 [2025-03-04 10:43:49,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:43:49,092 INFO L225 Difference]: With dead ends: 47 [2025-03-04 10:43:49,092 INFO L226 Difference]: Without dead ends: 20 [2025-03-04 10:43:49,094 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 [2025-03-04 10:43:49,097 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:43:49,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 45 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:43:49,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-03-04 10:43:49,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2025-03-04 10:43:49,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 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) [2025-03-04 10:43:49,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2025-03-04 10:43:49,118 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 4 [2025-03-04 10:43:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:43:49,118 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2025-03-04 10:43:49,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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) [2025-03-04 10:43:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2025-03-04 10:43:49,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-04 10:43:49,119 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:43:49,119 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-03-04 10:43:49,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 10:43:49,120 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:43:49,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:43:49,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1757034952, now seen corresponding path program 1 times [2025-03-04 10:43:49,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:43:49,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338661653] [2025-03-04 10:43:49,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:49,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:43:49,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 10:43:49,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 10:43:49,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:49,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:49,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:43:49,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:43:49,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338661653] [2025-03-04 10:43:49,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338661653] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:43:49,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022635365] [2025-03-04 10:43:49,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:49,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:43:49,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:43:49,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:43:49,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 10:43:49,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 10:43:49,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 10:43:49,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:49,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:49,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:43:49,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:43:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:43:49,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:43:49,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022635365] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:43:49,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:43:49,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-04 10:43:49,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193631608] [2025-03-04 10:43:49,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:43:49,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:43:49,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:43:49,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:43:49,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:43:49,355 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:43:49,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:43:49,387 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2025-03-04 10:43:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:43:49,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-04 10:43:49,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:43:49,387 INFO L225 Difference]: With dead ends: 20 [2025-03-04 10:43:49,387 INFO L226 Difference]: Without dead ends: 19 [2025-03-04 10:43:49,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:43:49,388 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:43:49,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 19 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:43:49,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-03-04 10:43:49,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2025-03-04 10:43:49,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 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) [2025-03-04 10:43:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2025-03-04 10:43:49,390 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2025-03-04 10:43:49,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:43:49,390 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2025-03-04 10:43:49,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:43:49,391 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2025-03-04 10:43:49,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 10:43:49,391 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:43:49,391 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-03-04 10:43:49,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 10:43:49,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:43:49,592 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:43:49,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:43:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1366491329, now seen corresponding path program 1 times [2025-03-04 10:43:49,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:43:49,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251224562] [2025-03-04 10:43:49,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:49,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:43:49,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 10:43:49,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 10:43:49,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:49,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:49,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:43:49,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:43:49,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251224562] [2025-03-04 10:43:49,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251224562] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:43:49,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:43:49,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:43:49,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917746680] [2025-03-04 10:43:49,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:43:49,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:43:49,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:43:49,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:43:49,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:43:49,644 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2025-03-04 10:43:49,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:43:49,654 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2025-03-04 10:43:49,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:43:49,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2025-03-04 10:43:49,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:43:49,656 INFO L225 Difference]: With dead ends: 16 [2025-03-04 10:43:49,656 INFO L226 Difference]: Without dead ends: 15 [2025-03-04 10:43:49,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:43:49,656 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:43:49,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:43:49,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-04 10:43:49,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2025-03-04 10:43:49,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2025-03-04 10:43:49,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-03-04 10:43:49,662 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-03-04 10:43:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:43:49,662 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-03-04 10:43:49,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2025-03-04 10:43:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-03-04 10:43:49,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-04 10:43:49,663 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:43:49,663 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:43:49,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 10:43:49,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:43:49,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:43:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1066597193, now seen corresponding path program 1 times [2025-03-04 10:43:49,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:43:49,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646912291] [2025-03-04 10:43:49,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:49,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:43:49,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 10:43:49,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 10:43:49,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:49,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:43:49,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:43:49,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646912291] [2025-03-04 10:43:49,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646912291] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:43:49,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022347040] [2025-03-04 10:43:49,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:49,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:43:49,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:43:49,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:43:49,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 10:43:49,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 10:43:49,805 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 10:43:49,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:49,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:49,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:43:49,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:43:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:43:49,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:43:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:43:49,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022347040] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:43:49,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:43:49,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 10:43:49,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370735481] [2025-03-04 10:43:49,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:43:49,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 10:43:49,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:43:49,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 10:43:49,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:43:49,876 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2025-03-04 10:43:49,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:43:49,904 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2025-03-04 10:43:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:43:49,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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 10 [2025-03-04 10:43:49,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:43:49,905 INFO L225 Difference]: With dead ends: 29 [2025-03-04 10:43:49,905 INFO L226 Difference]: Without dead ends: 22 [2025-03-04 10:43:49,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:43:49,906 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:43:49,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 34 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:43:49,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-03-04 10:43:49,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2025-03-04 10:43:49,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:43:49,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-03-04 10:43:49,909 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 10 [2025-03-04 10:43:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:43:49,909 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-03-04 10:43:49,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2025-03-04 10:43:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-03-04 10:43:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 10:43:49,910 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:43:49,910 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:43:49,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 10:43:50,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-04 10:43:50,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:43:50,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:43:50,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1451188713, now seen corresponding path program 2 times [2025-03-04 10:43:50,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:43:50,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725606645] [2025-03-04 10:43:50,115 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:43:50,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:43:50,122 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-04 10:43:50,124 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 16 statements. [2025-03-04 10:43:50,124 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 10:43:50,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 10:43:50,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:43:50,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725606645] [2025-03-04 10:43:50,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725606645] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:43:50,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:43:50,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:43:50,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186143615] [2025-03-04 10:43:50,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:43:50,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:43:50,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:43:50,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:43:50,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:43:50,159 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-03-04 10:43:50,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:43:50,178 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2025-03-04 10:43:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:43:50,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-03-04 10:43:50,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:43:50,178 INFO L225 Difference]: With dead ends: 26 [2025-03-04 10:43:50,178 INFO L226 Difference]: Without dead ends: 24 [2025-03-04 10:43:50,179 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 [2025-03-04 10:43:50,179 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18 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 [2025-03-04 10:43:50,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 18 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:43:50,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-03-04 10:43:50,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-03-04 10:43:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:43:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2025-03-04 10:43:50,183 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 16 [2025-03-04 10:43:50,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:43:50,184 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2025-03-04 10:43:50,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2025-03-04 10:43:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2025-03-04 10:43:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 10:43:50,184 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:43:50,184 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 10:43:50,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 10:43:50,184 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:43:50,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:43:50,185 INFO L85 PathProgramCache]: Analyzing trace with hash 173213646, now seen corresponding path program 1 times [2025-03-04 10:43:50,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:43:50,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379710833] [2025-03-04 10:43:50,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:50,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:43:50,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 10:43:50,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 10:43:50,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:50,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:43:50,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:43:50,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379710833] [2025-03-04 10:43:50,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379710833] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:43:50,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671124090] [2025-03-04 10:43:50,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:50,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:43:50,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:43:50,313 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:43:50,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 10:43:50,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 10:43:50,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 10:43:50,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:50,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:50,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 10:43:50,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:43:50,400 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:43:50,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:43:50,475 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:43:50,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671124090] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:43:50,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:43:50,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-04 10:43:50,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830309700] [2025-03-04 10:43:50,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:43:50,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 10:43:50,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:43:50,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 10:43:50,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-04 10:43:50,477 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:43:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:43:50,533 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2025-03-04 10:43:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 10:43:50,534 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2025-03-04 10:43:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:43:50,535 INFO L225 Difference]: With dead ends: 48 [2025-03-04 10:43:50,535 INFO L226 Difference]: Without dead ends: 36 [2025-03-04 10:43:50,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-04 10:43:50,535 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:43:50,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:43:50,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-03-04 10:43:50,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-03-04 10:43:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.088235294117647) internal successors, (37), 35 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:43:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2025-03-04 10:43:50,538 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 21 [2025-03-04 10:43:50,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:43:50,538 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2025-03-04 10:43:50,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:43:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2025-03-04 10:43:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 10:43:50,539 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:43:50,539 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-04 10:43:50,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 10:43:50,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:43:50,743 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:43:50,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:43:50,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1141234418, now seen corresponding path program 2 times [2025-03-04 10:43:50,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:43:50,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489294340] [2025-03-04 10:43:50,744 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:43:50,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:43:50,756 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 2 equivalence classes. [2025-03-04 10:43:50,766 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 10:43:50,766 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:43:50,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-04 10:43:50,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:43:50,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489294340] [2025-03-04 10:43:50,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489294340] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:43:50,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14101822] [2025-03-04 10:43:50,846 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:43:50,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:43:50,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:43:50,848 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:43:50,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 10:43:50,908 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 2 equivalence classes. [2025-03-04 10:43:50,924 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 10:43:50,925 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:43:50,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:50,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 10:43:50,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:43:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:43:51,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:43:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:43:51,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14101822] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:43:51,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:43:51,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 36 [2025-03-04 10:43:51,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339236864] [2025-03-04 10:43:51,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:43:51,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-03-04 10:43:51,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:43:51,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-03-04 10:43:51,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2025-03-04 10:43:51,415 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 36 states, 36 states have (on average 1.8611111111111112) internal successors, (67), 36 states have internal predecessors, (67), 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) [2025-03-04 10:43:51,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:43:51,545 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2025-03-04 10:43:51,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-04 10:43:51,546 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.8611111111111112) internal successors, (67), 36 states have internal predecessors, (67), 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 33 [2025-03-04 10:43:51,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:43:51,546 INFO L225 Difference]: With dead ends: 74 [2025-03-04 10:43:51,546 INFO L226 Difference]: Without dead ends: 62 [2025-03-04 10:43:51,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2025-03-04 10:43:51,547 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:43:51,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 41 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:43:51,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2025-03-04 10:43:51,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2025-03-04 10:43:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 58 states have internal predecessors, (60), 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) [2025-03-04 10:43:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2025-03-04 10:43:51,552 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 33 [2025-03-04 10:43:51,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:43:51,552 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2025-03-04 10:43:51,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.8611111111111112) internal successors, (67), 36 states have internal predecessors, (67), 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) [2025-03-04 10:43:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2025-03-04 10:43:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-03-04 10:43:51,553 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:43:51,553 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 10:43:51,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 10:43:51,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:43:51,754 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)] === [2025-03-04 10:43:51,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:43:51,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1924845026, now seen corresponding path program 1 times [2025-03-04 10:43:51,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:43:51,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277939215] [2025-03-04 10:43:51,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:43:51,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:43:51,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 10:43:51,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 10:43:51,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:43:51,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:43:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2025-03-04 10:43:51,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:43:51,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277939215] [2025-03-04 10:43:51,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277939215] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:43:51,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:43:51,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:43:51,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862203117] [2025-03-04 10:43:51,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:43:51,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:43:51,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:43:51,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:43:51,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:43:51,832 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2025-03-04 10:43:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:43:51,843 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2025-03-04 10:43:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:43:51,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 58 [2025-03-04 10:43:51,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:43:51,844 INFO L225 Difference]: With dead ends: 59 [2025-03-04 10:43:51,844 INFO L226 Difference]: Without dead ends: 0 [2025-03-04 10:43:51,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:43:51,844 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:43:51,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:43:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-04 10:43:51,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-04 10:43:51,845 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) [2025-03-04 10:43:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-04 10:43:51,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2025-03-04 10:43:51,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:43:51,845 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 10:43:51,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2025-03-04 10:43:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-04 10:43:51,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-04 10:43:51,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-04 10:43:51,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-04 10:43:51,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-03-04 10:43:51,849 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-03-04 10:43:51,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 10:43:51,852 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2025-03-04 10:43:51,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-04 10:43:51,870 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 10:43:51,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 10:43:51 BoogieIcfgContainer [2025-03-04 10:43:51,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 10:43:51,882 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 10:43:51,882 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 10:43:51,883 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 10:43:51,883 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:43:48" (3/4) ... [2025-03-04 10:43:51,884 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 10:43:51,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-04 10:43:51,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-04 10:43:51,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-04 10:43:51,890 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 10:43:51,962 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 10:43:51,963 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 10:43:51,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 10:43:51,963 INFO L158 Benchmark]: Toolchain (without parser) took 3647.95ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 111.4MB in the end (delta: -4.4MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2025-03-04 10:43:51,963 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:43:51,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.10ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 95.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:43:51,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.78ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 95.0MB in the end (delta: 776.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:43:51,964 INFO L158 Benchmark]: Boogie Preprocessor took 28.85ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:43:51,964 INFO L158 Benchmark]: IcfgBuilder took 225.87ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 82.7MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 10:43:51,964 INFO L158 Benchmark]: TraceAbstraction took 3131.93ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 42.1MB in the end (delta: 39.9MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2025-03-04 10:43:51,964 INFO L158 Benchmark]: Witness Printer took 80.37ms. Allocated memory is still 142.6MB. Free memory was 42.1MB in the beginning and 111.4MB in the end (delta: -69.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:43:51,965 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.10ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 95.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.78ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 95.0MB in the end (delta: 776.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.85ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 93.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 225.87ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 82.7MB in the end (delta: 10.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3131.93ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 42.1MB in the end (delta: 39.9MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Witness Printer took 80.37ms. Allocated memory is still 142.6MB. Free memory was 42.1MB in the beginning and 111.4MB in the end (delta: -69.3MB). 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: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 8, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 242 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 168 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 346 IncrementalHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 74 mSDtfsCounter, 346 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=7, InterpolantAutomatonStates: 77, 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, 8 MinimizatonAttempts, 14 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 228 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 442/627 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: 28]: Location Invariant Derived location invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 24]: Location Invariant Derived location invariant: ((0 < i) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2025-03-04 10:43:51,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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