./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_i10_o10-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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/recursive-simple/id_i10_o10-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9dc175bed280c85fbc7018a36f57353cd7d8c459346c67f95db055f6ec935a28 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:42:41,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:42:41,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:42:41,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:42:41,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:42:41,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:42:41,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:42:41,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:42:41,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:42:41,183 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:42:41,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:42:41,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:42:41,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:42:41,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:42:41,184 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:42:41,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:42:41,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:42:41,184 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:42:41,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:42:41,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:42:41,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:42:41,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:42:41,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:42:41,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:42:41,185 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:42:41,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:42:41,185 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:42:41,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:42:41,186 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:42:41,186 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:42:41,186 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:42:41,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:42:41,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:42:41,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:42:41,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:42:41,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:42:41,187 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9dc175bed280c85fbc7018a36f57353cd7d8c459346c67f95db055f6ec935a28 [2025-03-09 02:42:41,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:42:41,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:42:41,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:42:41,403 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:42:41,404 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:42:41,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i10_o10-1.c [2025-03-09 02:42:42,521 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6525fce72/d35f5497d4084614816c57022b37384d/FLAG6a6b0d13c [2025-03-09 02:42:42,727 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:42:42,729 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i10_o10-1.c [2025-03-09 02:42:42,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6525fce72/d35f5497d4084614816c57022b37384d/FLAG6a6b0d13c [2025-03-09 02:42:43,089 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6525fce72/d35f5497d4084614816c57022b37384d [2025-03-09 02:42:43,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:42:43,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:42:43,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:42:43,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:42:43,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:42:43,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58691968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43, skipping insertion in model container [2025-03-09 02:42:43,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:42:43,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:42:43,207 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:42:43,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:42:43,223 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:42:43,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43 WrapperNode [2025-03-09 02:42:43,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:42:43,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:42:43,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:42:43,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:42:43,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,241 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2025-03-09 02:42:43,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:42:43,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:42:43,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:42:43,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:42:43,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,258 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 02:42:43,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,260 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:42:43,264 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:42:43,264 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:42:43,264 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:42:43,265 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (1/1) ... [2025-03-09 02:42:43,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:42:43,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:42:43,286 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) [2025-03-09 02:42:43,289 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 [2025-03-09 02:42:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:42:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:42:43,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:42:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:42:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure id [2025-03-09 02:42:43,304 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2025-03-09 02:42:43,338 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:42:43,339 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:42:43,406 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8: havoc #t~ret4; [2025-03-09 02:42:43,411 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-03-09 02:42:43,411 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:42:43,417 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:42:43,417 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:42:43,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:42:43 BoogieIcfgContainer [2025-03-09 02:42:43,418 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:42:43,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:42:43,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:42:43,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:42:43,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:42:43" (1/3) ... [2025-03-09 02:42:43,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b27189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:42:43, skipping insertion in model container [2025-03-09 02:42:43,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:42:43" (2/3) ... [2025-03-09 02:42:43,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b27189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:42:43, skipping insertion in model container [2025-03-09 02:42:43,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:42:43" (3/3) ... [2025-03-09 02:42:43,424 INFO L128 eAbstractionObserver]: Analyzing ICFG id_i10_o10-1.c [2025-03-09 02:42:43,434 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:42:43,436 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id_i10_o10-1.c that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-09 02:42:43,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:42:43,482 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;@13f5803a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:42:43,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-09 02:42:43,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 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) [2025-03-09 02:42:43,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-09 02:42:43,491 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:43,491 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 02:42:43,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:43,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1123769116, now seen corresponding path program 1 times [2025-03-09 02:42:43,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:43,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309409976] [2025-03-09 02:42:43,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:42:43,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:43,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 02:42:43,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 02:42:43,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:42:43,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:43,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:43,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309409976] [2025-03-09 02:42:43,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309409976] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:42:43,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:42:43,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:42:43,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656971989] [2025-03-09 02:42:43,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:42:43,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:42:43,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:43,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:42:43,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:42:43,667 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 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 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-03-09 02:42:43,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:43,722 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2025-03-09 02:42:43,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:42:43,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2025-03-09 02:42:43,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:43,727 INFO L225 Difference]: With dead ends: 46 [2025-03-09 02:42:43,727 INFO L226 Difference]: Without dead ends: 28 [2025-03-09 02:42:43,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:42:43,730 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:43,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:42:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-03-09 02:42:43,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2025-03-09 02:42:43,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:42:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2025-03-09 02:42:43,752 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 6 [2025-03-09 02:42:43,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:43,753 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2025-03-09 02:42:43,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2025-03-09 02:42:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2025-03-09 02:42:43,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-09 02:42:43,753 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:43,753 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:42:43,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 02:42:43,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:43,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:43,754 INFO L85 PathProgramCache]: Analyzing trace with hash 477104215, now seen corresponding path program 1 times [2025-03-09 02:42:43,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:43,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855569930] [2025-03-09 02:42:43,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:42:43,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:43,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 02:42:43,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 02:42:43,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:42:43,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:43,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:43,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:43,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855569930] [2025-03-09 02:42:43,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855569930] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:42:43,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:42:43,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:42:43,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655941548] [2025-03-09 02:42:43,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:42:43,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:42:43,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:43,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:42:43,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:42:43,813 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2025-03-09 02:42:43,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:43,851 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2025-03-09 02:42:43,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:42:43,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2025-03-09 02:42:43,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:43,853 INFO L225 Difference]: With dead ends: 27 [2025-03-09 02:42:43,854 INFO L226 Difference]: Without dead ends: 26 [2025-03-09 02:42:43,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:42:43,854 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:43,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:42:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-03-09 02:42:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2025-03-09 02:42:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:42:43,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2025-03-09 02:42:43,861 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2025-03-09 02:42:43,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:43,861 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-03-09 02:42:43,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2025-03-09 02:42:43,861 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2025-03-09 02:42:43,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-09 02:42:43,861 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:43,861 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:42:43,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 02:42:43,863 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:43,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:43,864 INFO L85 PathProgramCache]: Analyzing trace with hash -638284688, now seen corresponding path program 1 times [2025-03-09 02:42:43,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:43,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852998680] [2025-03-09 02:42:43,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:42:43,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:43,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 02:42:43,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 02:42:43,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:42:43,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:43,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:43,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:43,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852998680] [2025-03-09 02:42:43,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852998680] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:42:43,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385134936] [2025-03-09 02:42:43,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:42:43,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:43,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:42:43,939 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) [2025-03-09 02:42:43,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 02:42:43,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 02:42:43,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 02:42:43,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:42:43,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:43,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:42:43,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:42:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:44,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:42:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:44,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385134936] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:42:44,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:42:44,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-03-09 02:42:44,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102917567] [2025-03-09 02:42:44,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:42:44,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:42:44,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:44,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:42:44,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:42:44,081 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:42:44,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:44,202 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2025-03-09 02:42:44,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:42:44,203 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-03-09 02:42:44,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:44,204 INFO L225 Difference]: With dead ends: 76 [2025-03-09 02:42:44,205 INFO L226 Difference]: Without dead ends: 68 [2025-03-09 02:42:44,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:42:44,206 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:44,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 95 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:42:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-03-09 02:42:44,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2025-03-09 02:42:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:42:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2025-03-09 02:42:44,218 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 11 [2025-03-09 02:42:44,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:44,218 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2025-03-09 02:42:44,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:42:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2025-03-09 02:42:44,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-09 02:42:44,220 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:44,220 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:42:44,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 02:42:44,420 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 [2025-03-09 02:42:44,420 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:44,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash -16539686, now seen corresponding path program 1 times [2025-03-09 02:42:44,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:44,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760005683] [2025-03-09 02:42:44,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:42:44,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:44,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 02:42:44,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 02:42:44,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:42:44,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-09 02:42:44,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:44,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760005683] [2025-03-09 02:42:44,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760005683] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:42:44,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:42:44,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:42:44,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751229682] [2025-03-09 02:42:44,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:42:44,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:42:44,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:44,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:42:44,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:42:44,479 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 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) [2025-03-09 02:42:44,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:44,496 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2025-03-09 02:42:44,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:42:44,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 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 19 [2025-03-09 02:42:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:44,499 INFO L225 Difference]: With dead ends: 74 [2025-03-09 02:42:44,499 INFO L226 Difference]: Without dead ends: 72 [2025-03-09 02:42:44,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:42:44,500 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:44,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:42:44,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-03-09 02:42:44,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-03-09 02:42:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2025-03-09 02:42:44,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2025-03-09 02:42:44,514 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2025-03-09 02:42:44,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:44,514 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2025-03-09 02:42:44,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 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) [2025-03-09 02:42:44,514 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2025-03-09 02:42:44,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-09 02:42:44,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:44,515 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:42:44,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 02:42:44,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:44,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1336297931, now seen corresponding path program 1 times [2025-03-09 02:42:44,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:44,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008782972] [2025-03-09 02:42:44,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:42:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:44,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 02:42:44,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 02:42:44,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:42:44,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:42:44,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:44,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008782972] [2025-03-09 02:42:44,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008782972] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:42:44,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:42:44,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:42:44,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527042550] [2025-03-09 02:42:44,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:42:44,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:42:44,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:44,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:42:44,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:42:44,556 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 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) [2025-03-09 02:42:44,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:44,567 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2025-03-09 02:42:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:42:44,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 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 24 [2025-03-09 02:42:44,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:44,568 INFO L225 Difference]: With dead ends: 72 [2025-03-09 02:42:44,569 INFO L226 Difference]: Without dead ends: 71 [2025-03-09 02:42:44,569 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 [2025-03-09 02:42:44,570 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:44,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:42:44,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-03-09 02:42:44,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-03-09 02:42:44,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2025-03-09 02:42:44,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2025-03-09 02:42:44,584 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2025-03-09 02:42:44,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:44,584 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2025-03-09 02:42:44,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 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) [2025-03-09 02:42:44,585 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2025-03-09 02:42:44,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-09 02:42:44,585 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:44,585 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2025-03-09 02:42:44,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 02:42:44,585 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:44,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:44,586 INFO L85 PathProgramCache]: Analyzing trace with hash -543218660, now seen corresponding path program 2 times [2025-03-09 02:42:44,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:44,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047404538] [2025-03-09 02:42:44,586 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:42:44,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:44,591 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-03-09 02:42:44,600 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 02:42:44,602 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:42:44,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:44,746 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:44,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:44,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047404538] [2025-03-09 02:42:44,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047404538] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:42:44,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863225172] [2025-03-09 02:42:44,747 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:42:44,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:44,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:42:44,749 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) [2025-03-09 02:42:44,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 02:42:44,767 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-03-09 02:42:44,775 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 02:42:44,775 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:42:44,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:44,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:42:44,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:42:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:44,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:42:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:44,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863225172] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:42:44,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:42:44,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2025-03-09 02:42:44,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631997711] [2025-03-09 02:42:44,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:42:44,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-09 02:42:44,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:44,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-09 02:42:44,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:42:44,961 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:42:45,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:45,239 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2025-03-09 02:42:45,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-09 02:42:45,240 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2025-03-09 02:42:45,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:45,241 INFO L225 Difference]: With dead ends: 188 [2025-03-09 02:42:45,241 INFO L226 Difference]: Without dead ends: 156 [2025-03-09 02:42:45,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2025-03-09 02:42:45,242 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 247 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:45,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 223 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:42:45,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2025-03-09 02:42:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2025-03-09 02:42:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.146551724137931) internal successors, (133), 116 states have internal predecessors, (133), 12 states have call successors, (12), 11 states have call predecessors, (12), 16 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2025-03-09 02:42:45,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2025-03-09 02:42:45,264 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2025-03-09 02:42:45,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:45,264 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2025-03-09 02:42:45,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:42:45,265 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2025-03-09 02:42:45,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-09 02:42:45,265 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:45,265 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 02:42:45,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 02:42:45,465 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,SelfDestructingSolverStorable5 [2025-03-09 02:42:45,466 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:45,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:45,466 INFO L85 PathProgramCache]: Analyzing trace with hash -98645244, now seen corresponding path program 1 times [2025-03-09 02:42:45,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:45,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937297597] [2025-03-09 02:42:45,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:42:45,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:45,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:42:45,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:42:45,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:42:45,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:42:45,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:45,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937297597] [2025-03-09 02:42:45,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937297597] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:42:45,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640834608] [2025-03-09 02:42:45,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:42:45,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:45,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:42:45,543 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) [2025-03-09 02:42:45,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 02:42:45,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:42:45,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:42:45,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:42:45,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:45,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-09 02:42:45,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:42:45,716 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-09 02:42:45,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:42:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:42:45,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640834608] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:42:45,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:42:45,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 15] total 29 [2025-03-09 02:42:45,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793824621] [2025-03-09 02:42:45,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:42:45,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-09 02:42:45,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:45,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-09 02:42:45,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2025-03-09 02:42:45,993 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-09 02:42:46,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:46,339 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2025-03-09 02:42:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-09 02:42:46,339 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 40 [2025-03-09 02:42:46,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:46,340 INFO L225 Difference]: With dead ends: 208 [2025-03-09 02:42:46,340 INFO L226 Difference]: Without dead ends: 142 [2025-03-09 02:42:46,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=1334, Unknown=0, NotChecked=0, Total=1640 [2025-03-09 02:42:46,341 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 164 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:46,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 462 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:42:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-03-09 02:42:46,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2025-03-09 02:42:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 106 states have internal predecessors, (119), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2025-03-09 02:42:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2025-03-09 02:42:46,350 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 40 [2025-03-09 02:42:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:46,350 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2025-03-09 02:42:46,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-09 02:42:46,350 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2025-03-09 02:42:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-03-09 02:42:46,351 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:46,351 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2025-03-09 02:42:46,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 02:42:46,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:46,552 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:46,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:46,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1018977892, now seen corresponding path program 3 times [2025-03-09 02:42:46,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:46,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475720579] [2025-03-09 02:42:46,552 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:42:46,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:46,556 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 56 statements into 11 equivalence classes. [2025-03-09 02:42:46,564 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 56 of 56 statements. [2025-03-09 02:42:46,564 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-09 02:42:46,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:46,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:46,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475720579] [2025-03-09 02:42:46,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475720579] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:42:46,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300993855] [2025-03-09 02:42:46,904 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:42:46,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:46,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:42:46,907 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) [2025-03-09 02:42:46,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 02:42:46,926 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 56 statements into 11 equivalence classes. [2025-03-09 02:42:46,939 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 56 of 56 statements. [2025-03-09 02:42:46,939 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-09 02:42:46,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:46,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-09 02:42:46,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:42:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:47,018 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:42:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:42:47,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300993855] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:42:47,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:42:47,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2025-03-09 02:42:47,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120250765] [2025-03-09 02:42:47,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:42:47,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-03-09 02:42:47,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:47,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-03-09 02:42:47,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2025-03-09 02:42:47,474 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:42:47,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:47,716 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2025-03-09 02:42:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-03-09 02:42:47,716 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2025-03-09 02:42:47,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:47,717 INFO L225 Difference]: With dead ends: 144 [2025-03-09 02:42:47,717 INFO L226 Difference]: Without dead ends: 143 [2025-03-09 02:42:47,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1045, Invalid=2495, Unknown=0, NotChecked=0, Total=3540 [2025-03-09 02:42:47,719 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 378 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:47,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 303 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:42:47,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-03-09 02:42:47,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 133. [2025-03-09 02:42:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 107 states have (on average 1.102803738317757) internal successors, (118), 105 states have internal predecessors, (118), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2025-03-09 02:42:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 146 transitions. [2025-03-09 02:42:47,729 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 146 transitions. Word has length 56 [2025-03-09 02:42:47,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:47,730 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 146 transitions. [2025-03-09 02:42:47,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:42:47,730 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 146 transitions. [2025-03-09 02:42:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-09 02:42:47,731 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:47,731 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2025-03-09 02:42:47,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 02:42:47,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:47,935 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:47,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:47,936 INFO L85 PathProgramCache]: Analyzing trace with hash 127191155, now seen corresponding path program 2 times [2025-03-09 02:42:47,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:47,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224878919] [2025-03-09 02:42:47,937 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:42:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:47,943 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-03-09 02:42:47,955 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-09 02:42:47,955 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:42:47,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-03-09 02:42:48,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:48,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224878919] [2025-03-09 02:42:48,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224878919] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:42:48,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14200546] [2025-03-09 02:42:48,053 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:42:48,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:48,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:42:48,055 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) [2025-03-09 02:42:48,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 02:42:48,077 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-03-09 02:42:48,099 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-03-09 02:42:48,099 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:42:48,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:48,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:42:48,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:42:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-03-09 02:42:48,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:42:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-03-09 02:42:48,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14200546] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:42:48,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:42:48,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-03-09 02:42:48,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703254434] [2025-03-09 02:42:48,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:42:48,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-09 02:42:48,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:48,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-09 02:42:48,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:42:48,279 INFO L87 Difference]: Start difference. First operand 133 states and 146 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 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) [2025-03-09 02:42:48,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:48,316 INFO L93 Difference]: Finished difference Result 236 states and 274 transitions. [2025-03-09 02:42:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 02:42:48,317 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 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) Word has length 70 [2025-03-09 02:42:48,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:48,319 INFO L225 Difference]: With dead ends: 236 [2025-03-09 02:42:48,319 INFO L226 Difference]: Without dead ends: 235 [2025-03-09 02:42:48,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:42:48,320 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:48,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:42:48,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2025-03-09 02:42:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2025-03-09 02:42:48,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 191 states have (on average 1.057591623036649) internal successors, (202), 185 states have internal predecessors, (202), 12 states have call successors, (12), 11 states have call predecessors, (12), 31 states have return successors, (38), 38 states have call predecessors, (38), 11 states have call successors, (38) [2025-03-09 02:42:48,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2025-03-09 02:42:48,342 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 70 [2025-03-09 02:42:48,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:48,345 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2025-03-09 02:42:48,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 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) [2025-03-09 02:42:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2025-03-09 02:42:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-09 02:42:48,346 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:48,346 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2025-03-09 02:42:48,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 02:42:48,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:48,547 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:48,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:48,548 INFO L85 PathProgramCache]: Analyzing trace with hash -226605389, now seen corresponding path program 3 times [2025-03-09 02:42:48,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:48,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961399041] [2025-03-09 02:42:48,548 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:42:48,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:48,552 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 90 statements into 11 equivalence classes. [2025-03-09 02:42:48,561 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 70 of 90 statements. [2025-03-09 02:42:48,561 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-09 02:42:48,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:48,714 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-03-09 02:42:48,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:48,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961399041] [2025-03-09 02:42:48,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961399041] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:42:48,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957468919] [2025-03-09 02:42:48,714 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:42:48,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:48,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:42:48,717 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) [2025-03-09 02:42:48,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 02:42:48,739 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 90 statements into 11 equivalence classes. [2025-03-09 02:42:48,755 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 70 of 90 statements. [2025-03-09 02:42:48,755 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-09 02:42:48,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:48,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-09 02:42:48,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:42:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-03-09 02:42:48,846 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:42:49,945 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2025-03-09 02:42:49,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957468919] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:42:49,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:42:49,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2025-03-09 02:42:49,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548806125] [2025-03-09 02:42:49,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:42:49,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-09 02:42:49,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:42:49,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-09 02:42:49,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2025-03-09 02:42:49,947 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2025-03-09 02:42:50,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:42:50,043 INFO L93 Difference]: Finished difference Result 630 states and 731 transitions. [2025-03-09 02:42:50,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-09 02:42:50,045 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 90 [2025-03-09 02:42:50,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:42:50,047 INFO L225 Difference]: With dead ends: 630 [2025-03-09 02:42:50,047 INFO L226 Difference]: Without dead ends: 389 [2025-03-09 02:42:50,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2025-03-09 02:42:50,049 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:42:50,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:42:50,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2025-03-09 02:42:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2025-03-09 02:42:50,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 316 states have (on average 1.0348101265822784) internal successors, (327), 307 states have internal predecessors, (327), 12 states have call successors, (12), 11 states have call predecessors, (12), 60 states have return successors, (70), 70 states have call predecessors, (70), 11 states have call successors, (70) [2025-03-09 02:42:50,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 409 transitions. [2025-03-09 02:42:50,073 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 409 transitions. Word has length 90 [2025-03-09 02:42:50,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:42:50,073 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 409 transitions. [2025-03-09 02:42:50,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.225806451612903) internal successors, (69), 32 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2025-03-09 02:42:50,074 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 409 transitions. [2025-03-09 02:42:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-09 02:42:50,077 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:42:50,077 INFO L218 NwaCegarLoop]: trace histogram [27, 26, 26, 26, 26, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1] [2025-03-09 02:42:50,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-09 02:42:50,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:50,281 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 02:42:50,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:42:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash 128091955, now seen corresponding path program 4 times [2025-03-09 02:42:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:42:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823142964] [2025-03-09 02:42:50,282 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 02:42:50,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:42:50,290 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 210 statements into 2 equivalence classes. [2025-03-09 02:42:50,300 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 112 of 210 statements. [2025-03-09 02:42:50,301 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-09 02:42:50,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 855 proven. 864 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2025-03-09 02:42:51,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:42:51,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823142964] [2025-03-09 02:42:51,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823142964] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:42:51,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449417389] [2025-03-09 02:42:51,130 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 02:42:51,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:42:51,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:42:51,131 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) [2025-03-09 02:42:51,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 02:42:51,174 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 210 statements into 2 equivalence classes. [2025-03-09 02:42:51,195 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 112 of 210 statements. [2025-03-09 02:42:51,195 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-09 02:42:51,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:42:51,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 56 conjuncts are in the unsatisfiable core [2025-03-09 02:42:51,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:42:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 855 proven. 864 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2025-03-09 02:42:51,397 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:43:01,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2202 backedges. 855 proven. 1242 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-09 02:43:01,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449417389] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:43:01,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:43:01,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 57] total 83 [2025-03-09 02:43:01,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933659049] [2025-03-09 02:43:01,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:43:01,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2025-03-09 02:43:01,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:43:01,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2025-03-09 02:43:01,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1070, Invalid=5736, Unknown=0, NotChecked=0, Total=6806 [2025-03-09 02:43:01,547 INFO L87 Difference]: Start difference. First operand 389 states and 409 transitions. Second operand has 83 states, 81 states have (on average 2.740740740740741) internal successors, (222), 59 states have internal predecessors, (222), 41 states have call successors, (41), 25 states have call predecessors, (41), 15 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) [2025-03-09 02:43:01,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:43:01,912 INFO L93 Difference]: Finished difference Result 396 states and 431 transitions. [2025-03-09 02:43:01,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-09 02:43:01,913 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 81 states have (on average 2.740740740740741) internal successors, (222), 59 states have internal predecessors, (222), 41 states have call successors, (41), 25 states have call predecessors, (41), 15 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) Word has length 210 [2025-03-09 02:43:01,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:43:01,914 INFO L225 Difference]: With dead ends: 396 [2025-03-09 02:43:01,914 INFO L226 Difference]: Without dead ends: 0 [2025-03-09 02:43:01,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 379 SyntacticMatches, 15 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3903 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1900, Invalid=7412, Unknown=0, NotChecked=0, Total=9312 [2025-03-09 02:43:01,917 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 60 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:43:01,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 104 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:43:01,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-09 02:43:01,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-09 02:43:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:43:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-09 02:43:01,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2025-03-09 02:43:01,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:43:01,918 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 02:43:01,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 81 states have (on average 2.740740740740741) internal successors, (222), 59 states have internal predecessors, (222), 41 states have call successors, (41), 25 states have call predecessors, (41), 15 states have return successors, (30), 15 states have call predecessors, (30), 17 states have call successors, (30) [2025-03-09 02:43:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-09 02:43:01,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-09 02:43:01,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-09 02:43:01,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-09 02:43:01,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-03-09 02:43:01,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-03-09 02:43:01,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-09 02:43:02,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:43:02,123 INFO L422 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2025-03-09 02:43:02,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-09 02:43:02,765 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 02:43:02,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 02:43:02 BoogieIcfgContainer [2025-03-09 02:43:02,768 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 02:43:02,769 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 02:43:02,769 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 02:43:02,769 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 02:43:02,771 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:42:43" (3/4) ... [2025-03-09 02:43:02,772 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 02:43:02,776 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure id [2025-03-09 02:43:02,778 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-09 02:43:02,778 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 02:43:02,778 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 02:43:02,778 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 02:43:02,831 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 02:43:02,832 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 02:43:02,832 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 02:43:02,832 INFO L158 Benchmark]: Toolchain (without parser) took 19740.45ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 107.1MB in the beginning and 237.0MB in the end (delta: -130.0MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2025-03-09 02:43:02,832 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:43:02,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 131.30ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 96.1MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:43:02,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.22ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 95.2MB in the end (delta: 870.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:43:02,833 INFO L158 Benchmark]: Boogie Preprocessor took 20.74ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.5MB in the end (delta: 786.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:43:02,833 INFO L158 Benchmark]: IcfgBuilder took 153.86ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 84.0MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 02:43:02,833 INFO L158 Benchmark]: TraceAbstraction took 19349.12ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 83.2MB in the beginning and 244.3MB in the end (delta: -161.1MB). Peak memory consumption was 161.2MB. Max. memory is 16.1GB. [2025-03-09 02:43:02,834 INFO L158 Benchmark]: Witness Printer took 62.98ms. Allocated memory is still 327.2MB. Free memory was 244.3MB in the beginning and 237.0MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:43:02,834 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 131.30ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 96.1MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.22ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 95.2MB in the end (delta: 870.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.74ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 94.5MB in the end (delta: 786.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 153.86ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 84.0MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 19349.12ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 83.2MB in the beginning and 244.3MB in the end (delta: -161.1MB). Peak memory consumption was 161.2MB. Max. memory is 16.1GB. * Witness Printer took 62.98ms. Allocated memory is still 327.2MB. Free memory was 244.3MB in the beginning and 237.0MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 28 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 11, TraceHistogramMax: 27, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 997 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 991 mSDsluCounter, 1521 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1285 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1783 IncrementalHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 236 mSDtfsCounter, 1783 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1193 GetRequests, 883 SyntacticMatches, 17 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5431 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=389occurred in iteration=10, InterpolantAutomatonStates: 177, 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, 11 MinimizatonAttempts, 47 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 1062 NumberOfCodeBlocks, 826 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 1540 ConstructedInterpolants, 0 QuantifiedInterpolants, 4128 SizeOfPredicates, 49 NumberOfNonLiveVariables, 859 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 25 InterpolantComputations, 4 PerfectInterpolantSequences, 5197/9553 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 02:43:02,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE