./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/TerminatorRec02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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/termination-numeric/TerminatorRec02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:48:48,895 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:48:48,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 14:48:48,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:48:48,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:48:48,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:48:48,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:48:48,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:48:48,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:48:48,975 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:48:48,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:48:48,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:48:48,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:48:48,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:48:48,976 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:48:48,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 14:48:48,977 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:48:48,978 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:48:48,978 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:48:48,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:48:48,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:48:48,979 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 [2025-03-17 14:48:49,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:48:49,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:48:49,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:48:49,218 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:48:49,219 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:48:49,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2025-03-17 14:48:50,404 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fbcc7aa6/98889c99916e42188a2596e3614b48c7/FLAG800d1f620 [2025-03-17 14:48:50,639 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:48:50,640 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2025-03-17 14:48:50,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fbcc7aa6/98889c99916e42188a2596e3614b48c7/FLAG800d1f620 [2025-03-17 14:48:50,969 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fbcc7aa6/98889c99916e42188a2596e3614b48c7 [2025-03-17 14:48:50,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:48:50,972 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:48:50,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:48:50,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:48:50,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:48:50,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:48:50" (1/1) ... [2025-03-17 14:48:50,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649a78e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:50, skipping insertion in model container [2025-03-17 14:48:50,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:48:50" (1/1) ... [2025-03-17 14:48:50,987 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:48:51,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:48:51,074 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:48:51,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:48:51,093 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:48:51,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51 WrapperNode [2025-03-17 14:48:51,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:48:51,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:48:51,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:48:51,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:48:51,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,114 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2025-03-17 14:48:51,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:48:51,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:48:51,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:48:51,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:48:51,119 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,125 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 14:48:51,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,130 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:48:51,135 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:48:51,135 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:48:51,135 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:48:51,136 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (1/1) ... [2025-03-17 14:48:51,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:48:51,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:51,163 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) [2025-03-17 14:48:51,165 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 [2025-03-17 14:48:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2025-03-17 14:48:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2025-03-17 14:48:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:48:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:48:51,221 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:48:51,222 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:48:51,300 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L18: havoc ~y~0; [2025-03-17 14:48:51,330 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-03-17 14:48:51,330 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:48:51,337 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:48:51,338 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:48:51,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:48:51 BoogieIcfgContainer [2025-03-17 14:48:51,338 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:48:51,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:48:51,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:48:51,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:48:51,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:48:50" (1/3) ... [2025-03-17 14:48:51,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b330cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:48:51, skipping insertion in model container [2025-03-17 14:48:51,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:51" (2/3) ... [2025-03-17 14:48:51,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b330cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:48:51, skipping insertion in model container [2025-03-17 14:48:51,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:48:51" (3/3) ... [2025-03-17 14:48:51,347 INFO L128 eAbstractionObserver]: Analyzing ICFG TerminatorRec02.c [2025-03-17 14:48:51,361 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:48:51,363 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG TerminatorRec02.c that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-17 14:48:51,404 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:48:51,416 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;@3e52e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:48:51,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 14:48:51,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 14:48:51,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 14:48:51,425 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:51,426 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:51,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:51,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:51,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1760499837, now seen corresponding path program 1 times [2025-03-17 14:48:51,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:51,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123681333] [2025-03-17 14:48:51,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:51,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:51,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 14:48:51,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 14:48:51,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:51,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:51,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:51,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123681333] [2025-03-17 14:48:51,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123681333] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:51,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:51,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:48:51,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29950409] [2025-03-17 14:48:51,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:51,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:48:51,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:51,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:48:51,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:48:51,572 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:51,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:51,598 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-03-17 14:48:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:48:51,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 14:48:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:51,603 INFO L225 Difference]: With dead ends: 23 [2025-03-17 14:48:51,603 INFO L226 Difference]: Without dead ends: 18 [2025-03-17 14:48:51,605 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 [2025-03-17 14:48:51,607 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:51,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-03-17 14:48:51,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-03-17 14:48:51,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2025-03-17 14:48:51,628 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 7 [2025-03-17 14:48:51,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:51,628 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2025-03-17 14:48:51,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2025-03-17 14:48:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-17 14:48:51,629 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:51,629 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:51,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:48:51,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:51,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:51,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1259079879, now seen corresponding path program 1 times [2025-03-17 14:48:51,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:51,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436491319] [2025-03-17 14:48:51,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:51,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:51,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 14:48:51,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 14:48:51,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:51,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:51,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:51,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436491319] [2025-03-17 14:48:51,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436491319] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:51,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:51,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:51,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158762091] [2025-03-17 14:48:51,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:51,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:48:51,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:51,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:48:51,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:48:51,679 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:51,729 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2025-03-17 14:48:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:48:51,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-17 14:48:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:51,730 INFO L225 Difference]: With dead ends: 18 [2025-03-17 14:48:51,730 INFO L226 Difference]: Without dead ends: 17 [2025-03-17 14:48:51,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:51,731 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:51,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 18 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-03-17 14:48:51,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-03-17 14:48:51,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:51,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2025-03-17 14:48:51,735 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 8 [2025-03-17 14:48:51,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:51,735 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2025-03-17 14:48:51,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:51,735 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2025-03-17 14:48:51,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 14:48:51,736 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:51,736 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:51,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:48:51,736 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:51,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:51,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1398015705, now seen corresponding path program 1 times [2025-03-17 14:48:51,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:51,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725554988] [2025-03-17 14:48:51,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:51,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:51,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 14:48:51,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 14:48:51,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:51,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:51,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261167169] [2025-03-17 14:48:51,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:51,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:51,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:51,753 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) [2025-03-17 14:48:51,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 14:48:51,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 14:48:51,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 14:48:51,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:51,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:51,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 14:48:51,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 14:48:51,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:51,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:51,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725554988] [2025-03-17 14:48:51,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:51,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261167169] [2025-03-17 14:48:51,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261167169] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:51,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:51,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:48:51,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577456622] [2025-03-17 14:48:51,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:51,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:51,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:51,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:51,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:51,887 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:51,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:51,920 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2025-03-17 14:48:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:51,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2025-03-17 14:48:51,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:51,921 INFO L225 Difference]: With dead ends: 17 [2025-03-17 14:48:51,921 INFO L226 Difference]: Without dead ends: 16 [2025-03-17 14:48:51,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:51,922 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:51,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 34 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:51,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-17 14:48:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-03-17 14:48:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2025-03-17 14:48:51,928 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 21 [2025-03-17 14:48:51,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:51,928 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2025-03-17 14:48:51,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2025-03-17 14:48:51,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-17 14:48:51,929 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:51,929 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:51,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 14:48:52,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:52,133 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:52,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:52,134 INFO L85 PathProgramCache]: Analyzing trace with hash -235446004, now seen corresponding path program 1 times [2025-03-17 14:48:52,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:52,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585627997] [2025-03-17 14:48:52,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:52,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:52,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 14:48:52,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 14:48:52,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:52,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:52,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240774052] [2025-03-17 14:48:52,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:52,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:52,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:52,147 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) [2025-03-17 14:48:52,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:48:52,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 14:48:52,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 14:48:52,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:52,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:52,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:48:52,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:52,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 14:48:52,261 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:52,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:52,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585627997] [2025-03-17 14:48:52,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:52,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240774052] [2025-03-17 14:48:52,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240774052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:52,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:52,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 14:48:52,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197948160] [2025-03-17 14:48:52,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:52,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 14:48:52,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:52,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 14:48:52,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:48:52,264 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:52,354 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2025-03-17 14:48:52,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:48:52,354 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2025-03-17 14:48:52,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:52,355 INFO L225 Difference]: With dead ends: 22 [2025-03-17 14:48:52,355 INFO L226 Difference]: Without dead ends: 21 [2025-03-17 14:48:52,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-17 14:48:52,355 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:52,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:52,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-03-17 14:48:52,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-03-17 14:48:52,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 14:48:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2025-03-17 14:48:52,359 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 17 [2025-03-17 14:48:52,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:52,359 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2025-03-17 14:48:52,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2025-03-17 14:48:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 14:48:52,360 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:52,360 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:52,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:52,560 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 [2025-03-17 14:48:52,562 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:52,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:52,563 INFO L85 PathProgramCache]: Analyzing trace with hash 976634537, now seen corresponding path program 1 times [2025-03-17 14:48:52,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:52,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391940464] [2025-03-17 14:48:52,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:52,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:52,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 14:48:52,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 14:48:52,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:52,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:52,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185323299] [2025-03-17 14:48:52,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:52,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:52,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:52,588 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) [2025-03-17 14:48:52,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 14:48:52,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 14:48:52,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 14:48:52,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:52,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:52,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 14:48:52,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:52,813 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 14:48:52,813 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:53,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:53,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391940464] [2025-03-17 14:48:53,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:53,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185323299] [2025-03-17 14:48:53,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185323299] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:53,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:53,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-17 14:48:53,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474443029] [2025-03-17 14:48:53,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:53,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 14:48:53,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:53,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 14:48:53,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2025-03-17 14:48:53,471 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 14:48:53,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:53,596 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2025-03-17 14:48:53,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 14:48:53,596 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2025-03-17 14:48:53,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:53,597 INFO L225 Difference]: With dead ends: 27 [2025-03-17 14:48:53,597 INFO L226 Difference]: Without dead ends: 26 [2025-03-17 14:48:53,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2025-03-17 14:48:53,598 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:53,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 60 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:53,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-03-17 14:48:53,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-03-17 14:48:53,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 14:48:53,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2025-03-17 14:48:53,602 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 32 [2025-03-17 14:48:53,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:53,602 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2025-03-17 14:48:53,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 11 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 14:48:53,603 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2025-03-17 14:48:53,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-17 14:48:53,603 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:53,603 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:53,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:53,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:53,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:53,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1995647436, now seen corresponding path program 2 times [2025-03-17 14:48:53,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:53,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865399726] [2025-03-17 14:48:53,804 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:53,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:53,809 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-03-17 14:48:53,824 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 14:48:53,825 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:53,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595556482] [2025-03-17 14:48:53,825 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:53,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:53,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:53,827 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) [2025-03-17 14:48:53,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 14:48:53,847 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-03-17 14:48:53,857 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 14:48:53,857 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:53,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:53,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-17 14:48:53,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 14:48:54,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:55,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:55,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865399726] [2025-03-17 14:48:55,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:55,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595556482] [2025-03-17 14:48:55,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595556482] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:55,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:55,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-03-17 14:48:55,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219753034] [2025-03-17 14:48:55,563 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:55,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 14:48:55,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:55,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 14:48:55,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2025-03-17 14:48:55,564 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 17 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 14:48:55,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:55,860 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2025-03-17 14:48:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 14:48:55,860 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2025-03-17 14:48:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:55,861 INFO L225 Difference]: With dead ends: 32 [2025-03-17 14:48:55,862 INFO L226 Difference]: Without dead ends: 31 [2025-03-17 14:48:55,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=206, Invalid=984, Unknown=0, NotChecked=0, Total=1190 [2025-03-17 14:48:55,863 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:55,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 45 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:55,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-03-17 14:48:55,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2025-03-17 14:48:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 14:48:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2025-03-17 14:48:55,870 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 37 [2025-03-17 14:48:55,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:55,870 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2025-03-17 14:48:55,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 14:48:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2025-03-17 14:48:55,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-17 14:48:55,871 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:55,871 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:55,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:56,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:56,075 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:56,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:56,075 INFO L85 PathProgramCache]: Analyzing trace with hash -208436759, now seen corresponding path program 3 times [2025-03-17 14:48:56,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:56,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363078204] [2025-03-17 14:48:56,076 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:48:56,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:56,081 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 52 statements into 6 equivalence classes. [2025-03-17 14:48:56,099 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 14:48:56,099 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 14:48:56,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:56,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314330991] [2025-03-17 14:48:56,100 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:48:56,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:56,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:56,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:56,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 14:48:56,133 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 52 statements into 6 equivalence classes. [2025-03-17 14:48:56,224 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 47 of 52 statements. [2025-03-17 14:48:56,224 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-17 14:48:56,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:56,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-17 14:48:56,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 29 proven. 36 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 14:48:56,481 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:57,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:57,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363078204] [2025-03-17 14:48:57,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:57,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314330991] [2025-03-17 14:48:57,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314330991] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:57,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:57,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2025-03-17 14:48:57,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535328639] [2025-03-17 14:48:57,411 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:57,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 14:48:57,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:57,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 14:48:57,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:48:57,412 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 14 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 14:48:57,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:57,595 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2025-03-17 14:48:57,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 14:48:57,596 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 14 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2025-03-17 14:48:57,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:57,597 INFO L225 Difference]: With dead ends: 37 [2025-03-17 14:48:57,597 INFO L226 Difference]: Without dead ends: 36 [2025-03-17 14:48:57,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2025-03-17 14:48:57,598 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:57,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 85 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:57,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-03-17 14:48:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-03-17 14:48:57,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-17 14:48:57,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2025-03-17 14:48:57,602 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 52 [2025-03-17 14:48:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:57,602 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2025-03-17 14:48:57,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 14 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 14:48:57,603 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2025-03-17 14:48:57,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-17 14:48:57,603 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:57,603 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:57,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:57,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:57,805 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:57,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:57,805 INFO L85 PathProgramCache]: Analyzing trace with hash -29658484, now seen corresponding path program 4 times [2025-03-17 14:48:57,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:57,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504733787] [2025-03-17 14:48:57,806 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:48:57,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:57,810 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 57 statements into 2 equivalence classes. [2025-03-17 14:48:57,822 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 57 of 57 statements. [2025-03-17 14:48:57,823 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:48:57,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:57,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075721289] [2025-03-17 14:48:57,826 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:48:57,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:57,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:57,828 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:57,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 14:48:57,863 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 57 statements into 2 equivalence classes. [2025-03-17 14:48:57,881 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 57 of 57 statements. [2025-03-17 14:48:57,881 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:48:57,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:57,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-03-17 14:48:57,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 26 proven. 54 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-17 14:48:58,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:59,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:59,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504733787] [2025-03-17 14:48:59,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:59,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075721289] [2025-03-17 14:48:59,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075721289] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:59,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:59,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2025-03-17 14:48:59,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911687258] [2025-03-17 14:48:59,002 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:59,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-17 14:48:59,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:59,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-17 14:48:59,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702 [2025-03-17 14:48:59,003 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 21 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-17 14:48:59,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:59,205 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2025-03-17 14:48:59,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 14:48:59,206 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 57 [2025-03-17 14:48:59,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:59,206 INFO L225 Difference]: With dead ends: 42 [2025-03-17 14:48:59,206 INFO L226 Difference]: Without dead ends: 41 [2025-03-17 14:48:59,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2025-03-17 14:48:59,207 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:59,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 112 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-03-17 14:48:59,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2025-03-17 14:48:59,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 32 states have (on average 1.0625) internal successors, (34), 33 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-17 14:48:59,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2025-03-17 14:48:59,213 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2025-03-17 14:48:59,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:59,213 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2025-03-17 14:48:59,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.85) internal successors, (37), 16 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-17 14:48:59,213 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2025-03-17 14:48:59,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-17 14:48:59,214 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:59,214 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:59,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 14:48:59,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:59,415 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:48:59,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:59,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1779188009, now seen corresponding path program 5 times [2025-03-17 14:48:59,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:59,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734598518] [2025-03-17 14:48:59,416 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:48:59,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:59,420 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 72 statements into 8 equivalence classes. [2025-03-17 14:48:59,435 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 72 of 72 statements. [2025-03-17 14:48:59,435 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-17 14:48:59,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:59,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [602373033] [2025-03-17 14:48:59,436 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:48:59,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:59,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:59,441 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:59,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 14:48:59,476 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 72 statements into 8 equivalence classes. [2025-03-17 14:48:59,501 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 72 of 72 statements. [2025-03-17 14:48:59,501 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-17 14:48:59,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:59,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-03-17 14:48:59,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 54 proven. 80 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 14:48:59,786 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:01,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:01,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734598518] [2025-03-17 14:49:01,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:01,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602373033] [2025-03-17 14:49:01,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602373033] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:01,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:01,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2025-03-17 14:49:01,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352825728] [2025-03-17 14:49:01,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:01,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 14:49:01,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:01,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 14:49:01,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=733, Unknown=0, NotChecked=0, Total=870 [2025-03-17 14:49:01,200 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 14:49:01,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:01,434 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2025-03-17 14:49:01,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-17 14:49:01,434 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) Word has length 72 [2025-03-17 14:49:01,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:01,435 INFO L225 Difference]: With dead ends: 47 [2025-03-17 14:49:01,435 INFO L226 Difference]: Without dead ends: 46 [2025-03-17 14:49:01,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2025-03-17 14:49:01,436 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:01,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 141 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:01,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-03-17 14:49:01,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-03-17 14:49:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 37 states have internal predecessors, (38), 2 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-03-17 14:49:01,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2025-03-17 14:49:01,441 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 72 [2025-03-17 14:49:01,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:01,441 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2025-03-17 14:49:01,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 18 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 14:49:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2025-03-17 14:49:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-17 14:49:01,442 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:01,442 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:01,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 14:49:01,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:01,643 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:49:01,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash -549917091, now seen corresponding path program 6 times [2025-03-17 14:49:01,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:01,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534135163] [2025-03-17 14:49:01,643 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:49:01,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:01,647 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 82 statements into 9 equivalence classes. [2025-03-17 14:49:01,670 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 82 of 82 statements. [2025-03-17 14:49:01,670 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-17 14:49:01,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:01,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268432167] [2025-03-17 14:49:01,671 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:49:01,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:01,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:01,673 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:49:01,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 14:49:01,714 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 82 statements into 9 equivalence classes. [2025-03-17 14:49:01,934 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 82 of 82 statements. [2025-03-17 14:49:01,934 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-17 14:49:01,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:01,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-03-17 14:49:01,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 50 proven. 116 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2025-03-17 14:49:02,594 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:04,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534135163] [2025-03-17 14:49:04,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:04,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268432167] [2025-03-17 14:49:04,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268432167] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:04,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:04,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2025-03-17 14:49:04,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182450931] [2025-03-17 14:49:04,227 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:04,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-17 14:49:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:04,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-17 14:49:04,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 14:49:04,230 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 21 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) [2025-03-17 14:49:04,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:04,575 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2025-03-17 14:49:04,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-03-17 14:49:04,576 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 21 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) Word has length 82 [2025-03-17 14:49:04,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:04,577 INFO L225 Difference]: With dead ends: 52 [2025-03-17 14:49:04,577 INFO L226 Difference]: Without dead ends: 51 [2025-03-17 14:49:04,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=195, Invalid=1065, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 14:49:04,578 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:04,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 154 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:04,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2025-03-17 14:49:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2025-03-17 14:49:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.05) internal successors, (42), 41 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2025-03-17 14:49:04,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2025-03-17 14:49:04,582 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 82 [2025-03-17 14:49:04,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:04,583 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2025-03-17 14:49:04,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 21 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) [2025-03-17 14:49:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2025-03-17 14:49:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-17 14:49:04,583 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:04,583 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:04,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:04,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-17 14:49:04,784 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:49:04,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1559515496, now seen corresponding path program 7 times [2025-03-17 14:49:04,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:04,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704227057] [2025-03-17 14:49:04,785 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:49:04,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:04,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-17 14:49:04,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 14:49:04,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:04,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:04,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [725418971] [2025-03-17 14:49:04,805 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:49:04,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:04,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:04,806 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:49:04,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 14:49:04,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-17 14:49:04,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 14:49:04,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:04,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:04,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-17 14:49:04,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 47 proven. 147 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-03-17 14:49:05,282 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:07,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:07,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704227057] [2025-03-17 14:49:07,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:07,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725418971] [2025-03-17 14:49:07,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725418971] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:07,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:07,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2025-03-17 14:49:07,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515033382] [2025-03-17 14:49:07,701 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:07,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-17 14:49:07,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:07,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-17 14:49:07,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1083, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 14:49:07,704 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand has 30 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 22 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 14:49:08,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:08,070 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2025-03-17 14:49:08,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-17 14:49:08,070 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 22 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2025-03-17 14:49:08,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:08,071 INFO L225 Difference]: With dead ends: 57 [2025-03-17 14:49:08,071 INFO L226 Difference]: Without dead ends: 56 [2025-03-17 14:49:08,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1211, Unknown=0, NotChecked=0, Total=1406 [2025-03-17 14:49:08,072 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:08,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 155 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-03-17 14:49:08,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-03-17 14:49:08,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 1.0454545454545454) internal successors, (46), 45 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2025-03-17 14:49:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2025-03-17 14:49:08,078 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 87 [2025-03-17 14:49:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:08,078 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2025-03-17 14:49:08,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 1.6896551724137931) internal successors, (49), 22 states have internal predecessors, (49), 3 states have call successors, (4), 1 states have call predecessors, (4), 8 states have return successors, (8), 8 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-17 14:49:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2025-03-17 14:49:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-17 14:49:08,082 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:08,082 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:08,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:08,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:08,283 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:49:08,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:08,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1288799244, now seen corresponding path program 8 times [2025-03-17 14:49:08,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:08,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150618307] [2025-03-17 14:49:08,284 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:08,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:08,292 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 97 statements into 2 equivalence classes. [2025-03-17 14:49:08,305 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 97 of 97 statements. [2025-03-17 14:49:08,306 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:08,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:08,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369333919] [2025-03-17 14:49:08,307 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:08,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:08,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:08,308 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:49:08,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 14:49:08,379 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 97 statements into 2 equivalence classes. [2025-03-17 14:49:08,534 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 97 of 97 statements. [2025-03-17 14:49:08,534 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:08,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:08,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 65 conjuncts are in the unsatisfiable core [2025-03-17 14:49:08,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:09,054 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 69 proven. 188 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2025-03-17 14:49:09,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:11,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:11,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150618307] [2025-03-17 14:49:11,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:11,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369333919] [2025-03-17 14:49:11,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369333919] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:11,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:11,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2025-03-17 14:49:11,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759727981] [2025-03-17 14:49:11,932 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:11,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-17 14:49:11,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:11,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-17 14:49:11,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1285, Unknown=0, NotChecked=0, Total=1482 [2025-03-17 14:49:11,933 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 33 states, 32 states have (on average 1.65625) internal successors, (53), 24 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-17 14:49:12,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:12,323 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2025-03-17 14:49:12,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-17 14:49:12,323 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 1.65625) internal successors, (53), 24 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) Word has length 97 [2025-03-17 14:49:12,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:12,324 INFO L225 Difference]: With dead ends: 62 [2025-03-17 14:49:12,324 INFO L226 Difference]: Without dead ends: 61 [2025-03-17 14:49:12,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=215, Invalid=1425, Unknown=0, NotChecked=0, Total=1640 [2025-03-17 14:49:12,325 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:12,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 195 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:12,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-03-17 14:49:12,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2025-03-17 14:49:12,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-17 14:49:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2025-03-17 14:49:12,331 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 97 [2025-03-17 14:49:12,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:12,332 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2025-03-17 14:49:12,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 1.65625) internal successors, (53), 24 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-17 14:49:12,332 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2025-03-17 14:49:12,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-17 14:49:12,334 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:12,334 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:12,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:12,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-17 14:49:12,534 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:49:12,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:12,535 INFO L85 PathProgramCache]: Analyzing trace with hash 422592425, now seen corresponding path program 9 times [2025-03-17 14:49:12,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:12,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804952726] [2025-03-17 14:49:12,536 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:12,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:12,542 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 112 statements into 12 equivalence classes. [2025-03-17 14:49:12,558 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 112 of 112 statements. [2025-03-17 14:49:12,560 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-03-17 14:49:12,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:12,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163281213] [2025-03-17 14:49:12,562 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:12,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:12,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:12,564 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:49:12,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 14:49:12,651 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 112 statements into 12 equivalence classes. [2025-03-17 14:49:12,975 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 112 of 112 statements. [2025-03-17 14:49:12,975 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-03-17 14:49:12,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:12,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 112 conjuncts are in the unsatisfiable core [2025-03-17 14:49:12,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 63 proven. 281 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2025-03-17 14:49:13,610 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:15,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:15,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804952726] [2025-03-17 14:49:15,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:15,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163281213] [2025-03-17 14:49:15,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163281213] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:15,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:15,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2025-03-17 14:49:15,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003626881] [2025-03-17 14:49:15,687 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:15,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2025-03-17 14:49:15,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:15,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2025-03-17 14:49:15,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=2017, Unknown=0, NotChecked=0, Total=2352 [2025-03-17 14:49:15,689 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 28 states have internal predecessors, (59), 4 states have call successors, (5), 2 states have call predecessors, (5), 10 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-17 14:49:16,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:16,200 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2025-03-17 14:49:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-17 14:49:16,201 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 28 states have internal predecessors, (59), 4 states have call successors, (5), 2 states have call predecessors, (5), 10 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) Word has length 112 [2025-03-17 14:49:16,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:16,202 INFO L225 Difference]: With dead ends: 72 [2025-03-17 14:49:16,202 INFO L226 Difference]: Without dead ends: 68 [2025-03-17 14:49:16,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=403, Invalid=2459, Unknown=0, NotChecked=0, Total=2862 [2025-03-17 14:49:16,203 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:16,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 247 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 14:49:16,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-03-17 14:49:16,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2025-03-17 14:49:16,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 54 states have (on average 1.037037037037037) internal successors, (56), 54 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-03-17 14:49:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2025-03-17 14:49:16,208 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 112 [2025-03-17 14:49:16,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:16,208 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2025-03-17 14:49:16,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 28 states have internal predecessors, (59), 4 states have call successors, (5), 2 states have call predecessors, (5), 10 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-17 14:49:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2025-03-17 14:49:16,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-17 14:49:16,209 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:16,209 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:16,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 14:49:16,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-17 14:49:16,410 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:49:16,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:16,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1409033507, now seen corresponding path program 10 times [2025-03-17 14:49:16,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:16,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097716338] [2025-03-17 14:49:16,411 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:16,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:16,416 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 122 statements into 2 equivalence classes. [2025-03-17 14:49:16,434 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-03-17 14:49:16,434 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:49:16,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:16,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852268034] [2025-03-17 14:49:16,435 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:16,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:16,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:16,437 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:49:16,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 14:49:16,535 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 122 statements into 2 equivalence classes. [2025-03-17 14:49:16,580 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-03-17 14:49:16,580 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:49:16,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:16,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 114 conjuncts are in the unsatisfiable core [2025-03-17 14:49:16,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:17,340 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 83 proven. 335 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2025-03-17 14:49:17,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:19,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:19,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097716338] [2025-03-17 14:49:19,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:19,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852268034] [2025-03-17 14:49:19,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852268034] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:19,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:19,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2025-03-17 14:49:19,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966166453] [2025-03-17 14:49:19,492 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:19,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-17 14:49:19,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:19,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-17 14:49:19,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=2220, Unknown=0, NotChecked=0, Total=2550 [2025-03-17 14:49:19,494 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 41 states, 39 states have (on average 1.641025641025641) internal successors, (64), 30 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 11 states have return successors, (11), 11 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-17 14:49:20,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:20,072 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2025-03-17 14:49:20,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-17 14:49:20,072 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 1.641025641025641) internal successors, (64), 30 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 11 states have return successors, (11), 11 states have call predecessors, (11), 3 states have call successors, (11) Word has length 122 [2025-03-17 14:49:20,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:20,073 INFO L225 Difference]: With dead ends: 74 [2025-03-17 14:49:20,073 INFO L226 Difference]: Without dead ends: 73 [2025-03-17 14:49:20,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=383, Invalid=2479, Unknown=0, NotChecked=0, Total=2862 [2025-03-17 14:49:20,074 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:20,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 267 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 14:49:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2025-03-17 14:49:20,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2025-03-17 14:49:20,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 58 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2025-03-17 14:49:20,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2025-03-17 14:49:20,082 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 122 [2025-03-17 14:49:20,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:20,082 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2025-03-17 14:49:20,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 1.641025641025641) internal successors, (64), 30 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 11 states have return successors, (11), 11 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-17 14:49:20,083 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2025-03-17 14:49:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-17 14:49:20,083 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:20,083 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:20,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:20,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 14:49:20,286 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 14:49:20,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:20,287 INFO L85 PathProgramCache]: Analyzing trace with hash -694119912, now seen corresponding path program 11 times [2025-03-17 14:49:20,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:20,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303818340] [2025-03-17 14:49:20,287 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:20,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:20,293 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 127 statements into 13 equivalence classes. [2025-03-17 14:49:20,308 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 14:49:20,309 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-17 14:49:20,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:20,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208287284] [2025-03-17 14:49:20,309 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:20,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:20,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:20,312 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:49:20,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 14:49:20,413 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 127 statements into 13 equivalence classes. [2025-03-17 14:49:20,484 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 14:49:20,484 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-17 14:49:20,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 14:49:20,484 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 14:49:20,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-17 14:49:20,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 14:49:20,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:20,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 14:49:20,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 14:49:20,558 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 14:49:20,559 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-17 14:49:20,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-17 14:49:20,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-03-17 14:49:20,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-03-17 14:49:20,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 14:49:20,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 14:49:20,764 INFO L422 BasicCegarLoop]: Path program histogram: [11, 1, 1, 1, 1] [2025-03-17 14:49:20,789 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 14:49:20,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:49:20 BoogieIcfgContainer [2025-03-17 14:49:20,791 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 14:49:20,791 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 14:49:20,791 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 14:49:20,791 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 14:49:20,792 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:48:51" (3/4) ... [2025-03-17 14:49:20,792 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-17 14:49:20,827 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 41. [2025-03-17 14:49:20,880 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 14:49:20,880 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 14:49:20,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 14:49:20,881 INFO L158 Benchmark]: Toolchain (without parser) took 29909.03ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 111.8MB in the beginning and 176.9MB in the end (delta: -65.2MB). Peak memory consumption was 190.0MB. Max. memory is 16.1GB. [2025-03-17 14:49:20,881 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:49:20,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 120.80ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 102.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:49:20,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.97ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 101.1MB in the end (delta: 981.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:49:20,882 INFO L158 Benchmark]: Boogie Preprocessor took 19.64ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 100.1MB in the end (delta: 959.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:49:20,882 INFO L158 Benchmark]: IcfgBuilder took 203.30ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 89.2MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 14:49:20,882 INFO L158 Benchmark]: TraceAbstraction took 29450.39ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 88.7MB in the beginning and 185.3MB in the end (delta: -96.6MB). Peak memory consumption was 156.4MB. Max. memory is 16.1GB. [2025-03-17 14:49:20,882 INFO L158 Benchmark]: Witness Printer took 89.40ms. Allocated memory is still 402.7MB. Free memory was 185.3MB in the beginning and 176.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:49:20,883 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 120.80ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 102.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.97ms. Allocated memory is still 142.6MB. Free memory was 102.1MB in the beginning and 101.1MB in the end (delta: 981.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.64ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 100.1MB in the end (delta: 959.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 203.30ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 89.2MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 29450.39ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 88.7MB in the beginning and 185.3MB in the end (delta: -96.6MB). Peak memory consumption was 156.4MB. Max. memory is 16.1GB. * Witness Printer took 89.40ms. Allocated memory is still 402.7MB. Free memory was 185.3MB in the beginning and 176.9MB in the end (delta: 8.4MB). 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 - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int x = __VERIFIER_nondet_int(); [L27] COND FALSE !(x < 0) [L29] int y = __VERIFIER_nondet_int(); [L30] COND FALSE !(y < 0) [L32] int z = __VERIFIER_nondet_int(); [L33] CALL fact(x) VAL [\old(x)=13] [L18] COND TRUE x > 1 VAL [\old(x)=13, x=13] [L19] EXPR x - 1 VAL [\old(x)=13, x=13] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=12] [L18] COND TRUE x > 1 VAL [\old(x)=12, x=12] [L19] EXPR x - 1 VAL [\old(x)=12, x=12] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=11] [L18] COND TRUE x > 1 VAL [\old(x)=11, x=11] [L19] EXPR x - 1 VAL [\old(x)=11, x=11] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=10] [L18] COND TRUE x > 1 VAL [\old(x)=10, x=10] [L19] EXPR x - 1 VAL [\old(x)=10, x=10] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=9] [L18] COND TRUE x > 1 VAL [\old(x)=9, x=9] [L19] EXPR x - 1 VAL [\old(x)=9, x=9] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=8] [L18] COND TRUE x > 1 VAL [\old(x)=8, x=8] [L19] EXPR x - 1 VAL [\old(x)=8, x=8] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=7] [L18] COND TRUE x > 1 VAL [\old(x)=7, x=7] [L19] EXPR x - 1 VAL [\old(x)=7, x=7] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=6] [L18] COND TRUE x > 1 VAL [\old(x)=6, x=6] [L19] EXPR x - 1 VAL [\old(x)=6, x=6] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=5] [L18] COND TRUE x > 1 VAL [\old(x)=5, x=5] [L19] EXPR x - 1 VAL [\old(x)=5, x=5] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=4] [L18] COND TRUE x > 1 VAL [\old(x)=4, x=4] [L19] EXPR x - 1 VAL [\old(x)=4, x=4] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=3] [L18] COND TRUE x > 1 VAL [\old(x)=3, x=3] [L19] EXPR x - 1 VAL [\old(x)=3, x=3] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=2] [L18] COND TRUE x > 1 VAL [\old(x)=2, x=2] [L19] EXPR x - 1 VAL [\old(x)=2, x=2] [L19] CALL, EXPR fact(x - 1) VAL [\old(x)=1] [L18] COND FALSE !(x > 1) VAL [\old(x)=1] [L22] return 1; VAL [\old(x)=1, \result=1] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=2, x=2] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=2, \result=2] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=3, x=3] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=3, \result=6] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=4, x=4] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=4, \result=24] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=5, x=5] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=5, \result=120] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=6, x=6] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=6, \result=720] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=7, x=7] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=7, \result=5040] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=8, x=8] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=8, \result=40320] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=9, x=9] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=9, \result=362880] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=10, x=10] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=10, \result=3628800] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=11, x=11] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=11, \result=39916800] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=12, x=12] [L19] int y = fact(x - 1); [L20] EXPR y * x [L20] return y * x; VAL [\old(x)=12, \result=479001600] [L19] RET, EXPR fact(x - 1) VAL [\old(x)=13, x=13] [L19] int y = fact(x - 1); [L20] y * x VAL [\old(x)=13] - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 28 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 29.4s, OverallIterations: 15, TraceHistogramMax: 13, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 1579 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1399 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7017 IncrementalHoareTripleChecker+Invalid, 7054 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 180 mSDtfsCounter, 7017 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 934 GetRequests, 568 SyntacticMatches, 1 SemanticMatches, 365 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3154 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=14, InterpolantAutomatonStates: 275, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 20.9s InterpolantComputationTime, 1845 NumberOfCodeBlocks, 1840 NumberOfCodeBlocksAsserted, 121 NumberOfCheckSat, 789 ConstructedInterpolants, 0 QuantifiedInterpolants, 4539 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1597 ConjunctsInSsa, 596 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 1286/2553 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 RESULT: Ultimate proved your program to be incorrect! [2025-03-17 14:49:20,935 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)