./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound100.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f26bb7c01ef96852e13a34034142a6eda53bd301e224804a84caad37f299321b --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:11:25,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:11:25,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:11:25,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:11:25,466 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:11:25,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:11:25,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:11:25,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:11:25,489 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:11:25,489 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:11:25,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:11:25,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:11:25,490 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:11:25,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:11:25,490 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:11:25,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:11:25,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:11:25,490 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:11:25,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:11:25,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:11:25,491 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:11:25,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:11:25,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:11:25,492 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:11:25,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:11:25,493 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 -> f26bb7c01ef96852e13a34034142a6eda53bd301e224804a84caad37f299321b [2025-03-17 15:11:25,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:11:25,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:11:25,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:11:25,721 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:11:25,722 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:11:25,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound100.i [2025-03-17 15:11:26,887 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600d83eac/e6e6b4625850415bb88257b7889e698c/FLAGd7808c0a5 [2025-03-17 15:11:27,153 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:11:27,153 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound100.i [2025-03-17 15:11:27,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600d83eac/e6e6b4625850415bb88257b7889e698c/FLAGd7808c0a5 [2025-03-17 15:11:27,176 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/600d83eac/e6e6b4625850415bb88257b7889e698c [2025-03-17 15:11:27,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:11:27,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:11:27,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:11:27,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:11:27,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:11:27,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78573d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27, skipping insertion in model container [2025-03-17 15:11:27,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:11:27,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:11:27,319 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:11:27,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:11:27,338 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:11:27,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27 WrapperNode [2025-03-17 15:11:27,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:11:27,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:11:27,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:11:27,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:11:27,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,359 INFO L138 Inliner]: procedures = 16, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2025-03-17 15:11:27,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:11:27,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:11:27,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:11:27,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:11:27,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,375 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]. [2025-03-17 15:11:27,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,380 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:11:27,386 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:11:27,386 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:11:27,386 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:11:27,387 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (1/1) ... [2025-03-17 15:11:27,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:11:27,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:27,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 15:11:27,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 15:11:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:11:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:11:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:11:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:11:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:11:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:11:27,480 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:11:27,482 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:11:27,619 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-03-17 15:11:27,619 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:11:27,628 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:11:27,628 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:11:27,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:11:27 BoogieIcfgContainer [2025-03-17 15:11:27,629 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:11:27,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:11:27,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:11:27,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:11:27,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:11:27" (1/3) ... [2025-03-17 15:11:27,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5239d97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:11:27, skipping insertion in model container [2025-03-17 15:11:27,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:11:27" (2/3) ... [2025-03-17 15:11:27,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5239d97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:11:27, skipping insertion in model container [2025-03-17 15:11:27,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:11:27" (3/3) ... [2025-03-17 15:11:27,637 INFO L128 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound100.i [2025-03-17 15:11:27,648 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:11:27,651 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG divbin2_unwindbound100.i that has 2 procedures, 27 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-03-17 15:11:27,698 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:11:27,709 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;@52c05734, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:11:27,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 15:11:27,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 23 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:11:27,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 15:11:27,716 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:27,716 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 15:11:27,716 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:27,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:27,721 INFO L85 PathProgramCache]: Analyzing trace with hash 58523, now seen corresponding path program 1 times [2025-03-17 15:11:27,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:27,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763936456] [2025-03-17 15:11:27,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:27,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:27,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 15:11:27,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 15:11:27,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:27,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:27,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:27,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763936456] [2025-03-17 15:11:27,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763936456] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:27,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:11:27,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:11:27,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197439583] [2025-03-17 15:11:27,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:27,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:11:27,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:27,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:11:27,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:11:27,883 INFO L87 Difference]: Start difference. First operand has 27 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 23 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:27,932 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2025-03-17 15:11:27,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:11:27,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-03-17 15:11:27,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:27,939 INFO L225 Difference]: With dead ends: 50 [2025-03-17 15:11:27,939 INFO L226 Difference]: Without dead ends: 25 [2025-03-17 15:11:27,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:11:27,944 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 13 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:27,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 63 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:27,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-03-17 15:11:27,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2025-03-17 15:11:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:11:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2025-03-17 15:11:27,974 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 3 [2025-03-17 15:11:27,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:27,975 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2025-03-17 15:11:27,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2025-03-17 15:11:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 15:11:27,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:27,976 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 15:11:27,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:11:27,976 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:27,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:27,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1814206, now seen corresponding path program 1 times [2025-03-17 15:11:27,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:27,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392747738] [2025-03-17 15:11:27,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:27,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:27,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 15:11:27,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 15:11:27,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:27,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:28,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:28,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392747738] [2025-03-17 15:11:28,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392747738] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:28,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:11:28,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:11:28,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896884794] [2025-03-17 15:11:28,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:28,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:11:28,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:28,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:11:28,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:11:28,031 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:28,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:28,067 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2025-03-17 15:11:28,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:11:28,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-17 15:11:28,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:28,069 INFO L225 Difference]: With dead ends: 38 [2025-03-17 15:11:28,069 INFO L226 Difference]: Without dead ends: 24 [2025-03-17 15:11:28,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:11:28,071 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:28,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 52 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-03-17 15:11:28,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-03-17 15:11:28,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:11:28,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2025-03-17 15:11:28,078 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 4 [2025-03-17 15:11:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:28,078 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-03-17 15:11:28,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2025-03-17 15:11:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-17 15:11:28,079 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:28,079 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:28,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:11:28,079 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:28,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:28,079 INFO L85 PathProgramCache]: Analyzing trace with hash 419813753, now seen corresponding path program 1 times [2025-03-17 15:11:28,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:28,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650868939] [2025-03-17 15:11:28,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:28,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:28,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 15:11:28,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 15:11:28,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:28,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:28,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:28,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:28,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650868939] [2025-03-17 15:11:28,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650868939] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:28,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:11:28,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:11:28,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705729196] [2025-03-17 15:11:28,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:28,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:11:28,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:28,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:11:28,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:11:28,171 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:28,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:28,245 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2025-03-17 15:11:28,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:11:28,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-17 15:11:28,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:28,246 INFO L225 Difference]: With dead ends: 24 [2025-03-17 15:11:28,246 INFO L226 Difference]: Without dead ends: 23 [2025-03-17 15:11:28,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:11:28,246 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 35 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:28,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 31 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-03-17 15:11:28,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-03-17 15:11:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.263157894736842) internal successors, (24), 20 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:11:28,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2025-03-17 15:11:28,249 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2025-03-17 15:11:28,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:28,249 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2025-03-17 15:11:28,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2025-03-17 15:11:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 15:11:28,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:28,249 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:28,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 15:11:28,250 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:28,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:28,250 INFO L85 PathProgramCache]: Analyzing trace with hash 129324436, now seen corresponding path program 1 times [2025-03-17 15:11:28,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:28,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344145394] [2025-03-17 15:11:28,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:28,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:28,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:11:28,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:11:28,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:28,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:28,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:28,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:28,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344145394] [2025-03-17 15:11:28,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344145394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:28,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:11:28,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:11:28,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575171671] [2025-03-17 15:11:28,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:28,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:11:28,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:28,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:11:28,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:11:28,322 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:28,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:28,398 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2025-03-17 15:11:28,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:11:28,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-17 15:11:28,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:28,400 INFO L225 Difference]: With dead ends: 33 [2025-03-17 15:11:28,400 INFO L226 Difference]: Without dead ends: 32 [2025-03-17 15:11:28,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:11:28,400 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:28,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 67 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:28,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-03-17 15:11:28,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2025-03-17 15:11:28,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:11:28,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2025-03-17 15:11:28,404 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 9 [2025-03-17 15:11:28,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:28,404 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2025-03-17 15:11:28,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:28,405 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2025-03-17 15:11:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 15:11:28,405 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:28,405 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2025-03-17 15:11:28,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:11:28,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:28,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash 129395934, now seen corresponding path program 1 times [2025-03-17 15:11:28,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:28,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982311869] [2025-03-17 15:11:28,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:28,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:28,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:11:28,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:11:28,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:28,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:28,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:28,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:28,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982311869] [2025-03-17 15:11:28,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982311869] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:11:28,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245231923] [2025-03-17 15:11:28,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:28,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:28,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:28,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:11:28,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:11:28,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:11:28,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:11:28,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:28,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:28,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:11:28,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:11:28,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:28,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:11:28,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245231923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:28,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:11:28,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2025-03-17 15:11:28,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082740160] [2025-03-17 15:11:28,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:28,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:11:28,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:28,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:11:28,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:11:28,558 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:28,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:28,607 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2025-03-17 15:11:28,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:11:28,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-03-17 15:11:28,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:28,608 INFO L225 Difference]: With dead ends: 31 [2025-03-17 15:11:28,608 INFO L226 Difference]: Without dead ends: 30 [2025-03-17 15:11:28,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:11:28,609 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:28,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 56 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-17 15:11:28,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2025-03-17 15:11:28,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:11:28,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2025-03-17 15:11:28,615 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 9 [2025-03-17 15:11:28,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:28,615 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2025-03-17 15:11:28,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:28,615 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2025-03-17 15:11:28,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 15:11:28,615 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:28,615 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:28,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 15:11:28,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:28,816 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:28,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:28,816 INFO L85 PathProgramCache]: Analyzing trace with hash 987033717, now seen corresponding path program 1 times [2025-03-17 15:11:28,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:28,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001771743] [2025-03-17 15:11:28,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:28,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:28,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 15:11:28,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 15:11:28,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:28,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:28,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:28,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001771743] [2025-03-17 15:11:28,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001771743] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:11:28,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139353913] [2025-03-17 15:11:28,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:28,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:28,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:28,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:11:28,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:11:28,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 15:11:28,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 15:11:28,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:28,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:28,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:11:28,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:11:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:28,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:11:28,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:28,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139353913] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:11:28,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:11:28,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-17 15:11:28,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720952142] [2025-03-17 15:11:28,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:11:28,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:11:28,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:28,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:11:28,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:11:28,993 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:29,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:29,086 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2025-03-17 15:11:29,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:11:29,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-17 15:11:29,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:29,087 INFO L225 Difference]: With dead ends: 60 [2025-03-17 15:11:29,087 INFO L226 Difference]: Without dead ends: 48 [2025-03-17 15:11:29,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:11:29,088 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:29,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 71 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:29,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2025-03-17 15:11:29,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2025-03-17 15:11:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 37 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:11:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2025-03-17 15:11:29,094 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 13 [2025-03-17 15:11:29,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:29,094 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2025-03-17 15:11:29,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2025-03-17 15:11:29,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:11:29,094 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:29,095 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:29,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 15:11:29,299 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 [2025-03-17 15:11:29,299 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:29,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:29,300 INFO L85 PathProgramCache]: Analyzing trace with hash 532441972, now seen corresponding path program 1 times [2025-03-17 15:11:29,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:29,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290630020] [2025-03-17 15:11:29,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:29,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:29,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:11:29,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:11:29,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:29,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:29,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290630020] [2025-03-17 15:11:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290630020] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:11:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597336476] [2025-03-17 15:11:29,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:29,398 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:11:29,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:11:29,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:11:29,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:11:29,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:29,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:29,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:11:29,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:11:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:29,479 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:11:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:29,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597336476] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:11:29,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:11:29,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2025-03-17 15:11:29,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783131631] [2025-03-17 15:11:29,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:11:29,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 15:11:29,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:29,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 15:11:29,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:11:29,561 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:29,795 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2025-03-17 15:11:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-17 15:11:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-03-17 15:11:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:29,796 INFO L225 Difference]: With dead ends: 69 [2025-03-17 15:11:29,796 INFO L226 Difference]: Without dead ends: 68 [2025-03-17 15:11:29,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2025-03-17 15:11:29,797 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 100 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:29,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 128 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:11:29,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-03-17 15:11:29,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2025-03-17 15:11:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 55 states have internal predecessors, (64), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:11:29,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2025-03-17 15:11:29,803 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 14 [2025-03-17 15:11:29,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:29,803 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2025-03-17 15:11:29,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:11:29,803 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2025-03-17 15:11:29,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-17 15:11:29,803 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:29,804 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:29,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 15:11:30,004 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 [2025-03-17 15:11:30,004 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:30,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:30,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1664374814, now seen corresponding path program 1 times [2025-03-17 15:11:30,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:30,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548384662] [2025-03-17 15:11:30,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:30,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:30,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:11:30,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:11:30,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:30,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:11:30,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:30,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548384662] [2025-03-17 15:11:30,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548384662] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:11:30,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605811596] [2025-03-17 15:11:30,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:30,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:30,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:30,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:11:30,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:11:30,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:11:30,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:11:30,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:30,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:30,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:11:30,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:11:30,363 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:30,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:11:30,553 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:11:30,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605811596] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:11:30,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:11:30,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2025-03-17 15:11:30,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826337084] [2025-03-17 15:11:30,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:11:30,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-17 15:11:30,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:30,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-17 15:11:30,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2025-03-17 15:11:30,557 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand has 30 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 15:11:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:31,081 INFO L93 Difference]: Finished difference Result 215 states and 244 transitions. [2025-03-17 15:11:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-03-17 15:11:31,084 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 42 [2025-03-17 15:11:31,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:31,086 INFO L225 Difference]: With dead ends: 215 [2025-03-17 15:11:31,086 INFO L226 Difference]: Without dead ends: 214 [2025-03-17 15:11:31,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=896, Invalid=2296, Unknown=0, NotChecked=0, Total=3192 [2025-03-17 15:11:31,090 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 199 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:31,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 155 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:11:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2025-03-17 15:11:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 161. [2025-03-17 15:11:31,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 136 states have (on average 1.1323529411764706) internal successors, (154), 136 states have internal predecessors, (154), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 15:11:31,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 178 transitions. [2025-03-17 15:11:31,110 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 178 transitions. Word has length 42 [2025-03-17 15:11:31,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:31,110 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 178 transitions. [2025-03-17 15:11:31,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.103448275862069) internal successors, (90), 30 states have internal predecessors, (90), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 15:11:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 178 transitions. [2025-03-17 15:11:31,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-17 15:11:31,114 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:31,114 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:11:31,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 15:11:31,314 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 [2025-03-17 15:11:31,315 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:31,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:31,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1599291733, now seen corresponding path program 1 times [2025-03-17 15:11:31,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:31,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142441887] [2025-03-17 15:11:31,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:31,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:31,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 15:11:31,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 15:11:31,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:31,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-17 15:11:31,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:31,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142441887] [2025-03-17 15:11:31,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142441887] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:11:31,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245219696] [2025-03-17 15:11:31,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:31,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:31,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:31,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:11:31,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:11:31,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 15:11:31,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 15:11:31,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:31,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:31,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:11:31,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:11:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-17 15:11:31,565 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:11:31,684 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-17 15:11:31,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245219696] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:11:31,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:11:31,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22 [2025-03-17 15:11:31,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568082374] [2025-03-17 15:11:31,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:11:31,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 15:11:31,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:31,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 15:11:31,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:11:31,686 INFO L87 Difference]: Start difference. First operand 161 states and 178 transitions. Second operand has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:11:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:31,928 INFO L93 Difference]: Finished difference Result 241 states and 272 transitions. [2025-03-17 15:11:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-17 15:11:31,928 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2025-03-17 15:11:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:31,930 INFO L225 Difference]: With dead ends: 241 [2025-03-17 15:11:31,930 INFO L226 Difference]: Without dead ends: 215 [2025-03-17 15:11:31,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2025-03-17 15:11:31,931 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 87 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:31,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 132 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:11:31,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2025-03-17 15:11:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 191. [2025-03-17 15:11:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 166 states have (on average 1.144578313253012) internal successors, (190), 166 states have internal predecessors, (190), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 15:11:31,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 214 transitions. [2025-03-17 15:11:31,951 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 214 transitions. Word has length 50 [2025-03-17 15:11:31,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:31,951 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 214 transitions. [2025-03-17 15:11:31,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:11:31,951 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 214 transitions. [2025-03-17 15:11:31,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-17 15:11:31,955 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:31,955 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:11:31,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 15:11:32,156 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 [2025-03-17 15:11:32,156 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:32,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:32,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1121238357, now seen corresponding path program 2 times [2025-03-17 15:11:32,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:32,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333730796] [2025-03-17 15:11:32,157 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:11:32,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:32,168 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 80 statements into 2 equivalence classes. [2025-03-17 15:11:32,175 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 15:11:32,176 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:11:32,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2025-03-17 15:11:32,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:32,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333730796] [2025-03-17 15:11:32,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333730796] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:32,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:11:32,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:11:32,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339049565] [2025-03-17 15:11:32,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:32,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:11:32,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:32,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:11:32,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:11:32,262 INFO L87 Difference]: Start difference. First operand 191 states and 214 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:11:32,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:32,287 INFO L93 Difference]: Finished difference Result 217 states and 242 transitions. [2025-03-17 15:11:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:11:32,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2025-03-17 15:11:32,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:32,288 INFO L225 Difference]: With dead ends: 217 [2025-03-17 15:11:32,288 INFO L226 Difference]: Without dead ends: 191 [2025-03-17 15:11:32,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:11:32,289 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:32,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 59 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2025-03-17 15:11:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 147. [2025-03-17 15:11:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 122 states have (on average 1.1229508196721312) internal successors, (137), 122 states have internal predecessors, (137), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 15:11:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 161 transitions. [2025-03-17 15:11:32,297 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 161 transitions. Word has length 80 [2025-03-17 15:11:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:32,298 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 161 transitions. [2025-03-17 15:11:32,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 15:11:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 161 transitions. [2025-03-17 15:11:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-17 15:11:32,299 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:32,299 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:11:32,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 15:11:32,299 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:32,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:32,299 INFO L85 PathProgramCache]: Analyzing trace with hash -678944140, now seen corresponding path program 1 times [2025-03-17 15:11:32,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:32,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127610485] [2025-03-17 15:11:32,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:32,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:32,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-17 15:11:32,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-17 15:11:32,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:32,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:32,738 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:11:32,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:32,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127610485] [2025-03-17 15:11:32,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127610485] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:11:32,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452732570] [2025-03-17 15:11:32,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:11:32,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:32,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:11:32,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:11:32,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:11:32,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-17 15:11:32,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-17 15:11:32,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:11:32,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:32,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 15:11:32,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:11:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:11:33,292 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:11:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 3 proven. 222 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 15:11:33,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452732570] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:11:33,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:11:33,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22, 22] total 65 [2025-03-17 15:11:33,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698247829] [2025-03-17 15:11:33,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:11:33,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2025-03-17 15:11:33,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:33,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2025-03-17 15:11:33,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=974, Invalid=3316, Unknown=0, NotChecked=0, Total=4290 [2025-03-17 15:11:33,900 INFO L87 Difference]: Start difference. First operand 147 states and 161 transitions. Second operand has 66 states, 65 states have (on average 3.230769230769231) internal successors, (210), 66 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-17 15:11:35,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:35,453 INFO L93 Difference]: Finished difference Result 525 states and 591 transitions. [2025-03-17 15:11:35,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2025-03-17 15:11:35,454 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 3.230769230769231) internal successors, (210), 66 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 102 [2025-03-17 15:11:35,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:35,458 INFO L225 Difference]: With dead ends: 525 [2025-03-17 15:11:35,460 INFO L226 Difference]: Without dead ends: 524 [2025-03-17 15:11:35,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3568 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=4405, Invalid=11597, Unknown=0, NotChecked=0, Total=16002 [2025-03-17 15:11:35,468 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 619 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:35,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 266 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:11:35,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2025-03-17 15:11:35,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 317. [2025-03-17 15:11:35,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 262 states have (on average 1.118320610687023) internal successors, (293), 262 states have internal predecessors, (293), 27 states have call successors, (27), 27 states have call predecessors, (27), 27 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-17 15:11:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 347 transitions. [2025-03-17 15:11:35,494 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 347 transitions. Word has length 102 [2025-03-17 15:11:35,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:35,495 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 347 transitions. [2025-03-17 15:11:35,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 3.230769230769231) internal successors, (210), 66 states have internal predecessors, (210), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-17 15:11:35,495 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 347 transitions. [2025-03-17 15:11:35,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-03-17 15:11:35,497 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:11:35,497 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 3, 3, 3, 3, 2, 1, 1, 1] [2025-03-17 15:11:35,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 15:11:35,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:11:35,702 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:11:35,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:11:35,703 INFO L85 PathProgramCache]: Analyzing trace with hash -639042220, now seen corresponding path program 2 times [2025-03-17 15:11:35,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:11:35,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672374586] [2025-03-17 15:11:35,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:11:35,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:11:35,727 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 217 statements into 2 equivalence classes. [2025-03-17 15:11:35,751 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 217 of 217 statements. [2025-03-17 15:11:35,755 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:11:35,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:11:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2025-03-17 15:11:36,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:11:36,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672374586] [2025-03-17 15:11:36,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672374586] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:11:36,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:11:36,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:11:36,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650685682] [2025-03-17 15:11:36,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:11:36,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:11:36,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:11:36,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:11:36,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:11:36,002 INFO L87 Difference]: Start difference. First operand 317 states and 347 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:11:36,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:11:36,033 INFO L93 Difference]: Finished difference Result 321 states and 351 transitions. [2025-03-17 15:11:36,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:11:36,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 217 [2025-03-17 15:11:36,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:11:36,034 INFO L225 Difference]: With dead ends: 321 [2025-03-17 15:11:36,034 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 15:11:36,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:11:36,035 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:11:36,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 45 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:11:36,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 15:11:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 15:11:36,035 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) [2025-03-17 15:11:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 15:11:36,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2025-03-17 15:11:36,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:11:36,035 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 15:11:36,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:11:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 15:11:36,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 15:11:36,038 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-03-17 15:11:36,038 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-03-17 15:11:36,038 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-03-17 15:11:36,038 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-03-17 15:11:36,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 15:11:36,040 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:11:36,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 15:11:36,506 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 15:11:36,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:11:36 BoogieIcfgContainer [2025-03-17 15:11:36,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 15:11:36,517 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 15:11:36,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 15:11:36,517 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 15:11:36,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:11:27" (3/4) ... [2025-03-17 15:11:36,519 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 15:11:36,523 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-03-17 15:11:36,526 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-17 15:11:36,526 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-17 15:11:36,527 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 15:11:36,527 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 15:11:36,588 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 15:11:36,588 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 15:11:36,588 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 15:11:36,589 INFO L158 Benchmark]: Toolchain (without parser) took 9409.41ms. Allocated memory was 167.8MB in the beginning and 427.8MB in the end (delta: 260.0MB). Free memory was 122.6MB in the beginning and 299.1MB in the end (delta: -176.4MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. [2025-03-17 15:11:36,589 INFO L158 Benchmark]: CDTParser took 0.95ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:11:36,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.68ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 111.6MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 15:11:36,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.34ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 110.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:11:36,590 INFO L158 Benchmark]: Boogie Preprocessor took 24.17ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 109.7MB in the end (delta: 647.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:11:36,591 INFO L158 Benchmark]: IcfgBuilder took 243.24ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 97.4MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 15:11:36,591 INFO L158 Benchmark]: TraceAbstraction took 8885.48ms. Allocated memory was 167.8MB in the beginning and 427.8MB in the end (delta: 260.0MB). Free memory was 96.8MB in the beginning and 303.3MB in the end (delta: -206.6MB). Peak memory consumption was 205.1MB. Max. memory is 16.1GB. [2025-03-17 15:11:36,592 INFO L158 Benchmark]: Witness Printer took 71.35ms. Allocated memory is still 427.8MB. Free memory was 303.3MB in the beginning and 299.1MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 15:11:36,592 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.68ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 111.6MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.34ms. Allocated memory is still 167.8MB. Free memory was 111.6MB in the beginning and 110.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.17ms. Allocated memory is still 167.8MB. Free memory was 110.4MB in the beginning and 109.7MB in the end (delta: 647.4kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 243.24ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 97.4MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8885.48ms. Allocated memory was 167.8MB in the beginning and 427.8MB in the end (delta: 260.0MB). Free memory was 96.8MB in the beginning and 303.3MB in the end (delta: -206.6MB). Peak memory consumption was 205.1MB. Max. memory is 16.1GB. * Witness Printer took 71.35ms. Allocated memory is still 427.8MB. Free memory was 303.3MB in the beginning and 299.1MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 38 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 12, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1122 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1122 mSDsluCounter, 1125 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 938 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 973 IncrementalHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 187 mSDtfsCounter, 973 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4643 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=317occurred in iteration=11, InterpolantAutomatonStates: 246, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 356 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 979 ConstructedInterpolants, 0 QuantifiedInterpolants, 2009 SizeOfPredicates, 42 NumberOfNonLiveVariables, 642 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 23 InterpolantComputations, 7 PerfectInterpolantSequences, 2348/3393 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 34]: Location Invariant Derived location invariant: (((1 <= counter) && (counter <= 100)) || (counter == 0)) - InvariantResult [Line: 26]: Location Invariant Derived location invariant: (((1 <= counter) && (counter <= 100)) || ((101 <= counter) && (counter <= 2147483645))) RESULT: Ultimate proved your program to be correct! [2025-03-17 15:11:36,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE