./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.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/loop-zilu/benchmark20_conjunctive.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 a97cc7ecf3f325d6a4f94ad142da468f60264f8646a5f445527873ff4eb9457a --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:01:14,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:01:14,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:01:14,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:01:14,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:01:14,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:01:14,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:01:14,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:01:14,584 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:01:14,584 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:01:14,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:01:14,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:01:14,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:01:14,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:01:14,586 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:01:14,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:01:14,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:01:14,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:01:14,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:01:14,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:01:14,588 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 -> a97cc7ecf3f325d6a4f94ad142da468f60264f8646a5f445527873ff4eb9457a [2025-03-17 15:01:14,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:01:14,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:01:14,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:01:14,800 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:01:14,800 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:01:14,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2025-03-17 15:01:15,978 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7625e03/495a02ce51594162a26d433f8b463dc4/FLAG5efc31148 [2025-03-17 15:01:16,201 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:01:16,201 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2025-03-17 15:01:16,233 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7625e03/495a02ce51594162a26d433f8b463dc4/FLAG5efc31148 [2025-03-17 15:01:16,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7625e03/495a02ce51594162a26d433f8b463dc4 [2025-03-17 15:01:16,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:01:16,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:01:16,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:01:16,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:01:16,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:01:16,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f7bfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16, skipping insertion in model container [2025-03-17 15:01:16,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:01:16,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:01:16,393 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:01:16,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:01:16,415 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:01:16,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16 WrapperNode [2025-03-17 15:01:16,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:01:16,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:01:16,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:01:16,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:01:16,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,436 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 40 [2025-03-17 15:01:16,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:01:16,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:01:16,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:01:16,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:01:16,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,447 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,459 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 15:01:16,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,461 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:01:16,464 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:01:16,464 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:01:16,464 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:01:16,465 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (1/1) ... [2025-03-17 15:01:16,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:01:16,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:16,488 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 15:01:16,493 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 15:01:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:01:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:01:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:01:16,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:01:16,544 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:01:16,545 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:01:16,628 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2025-03-17 15:01:16,629 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:01:16,635 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:01:16,635 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:01:16,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:01:16 BoogieIcfgContainer [2025-03-17 15:01:16,635 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:01:16,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:01:16,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:01:16,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:01:16,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:01:16" (1/3) ... [2025-03-17 15:01:16,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3206209a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:01:16, skipping insertion in model container [2025-03-17 15:01:16,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:16" (2/3) ... [2025-03-17 15:01:16,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3206209a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:01:16, skipping insertion in model container [2025-03-17 15:01:16,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:01:16" (3/3) ... [2025-03-17 15:01:16,643 INFO L128 eAbstractionObserver]: Analyzing ICFG benchmark20_conjunctive.i [2025-03-17 15:01:16,653 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:01:16,656 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG benchmark20_conjunctive.i that has 1 procedures, 18 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-03-17 15:01:16,694 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:01:16,703 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;@6b3f4668, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:01:16,703 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 15:01:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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 15:01:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 15:01:16,709 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:16,709 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 15:01:16,710 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 15:01:16,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:16,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1568895, now seen corresponding path program 1 times [2025-03-17 15:01:16,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:16,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201429951] [2025-03-17 15:01:16,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:16,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:16,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 15:01:16,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 15:01:16,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:16,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:16,862 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 15:01:16,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:16,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201429951] [2025-03-17 15:01:16,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201429951] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:16,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:01:16,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:01:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638710501] [2025-03-17 15:01:16,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:16,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:01:16,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:16,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:01:16,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:01:16,886 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) 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 15:01:16,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:16,922 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2025-03-17 15:01:16,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:01:16,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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 15:01:16,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:16,928 INFO L225 Difference]: With dead ends: 26 [2025-03-17 15:01:16,929 INFO L226 Difference]: Without dead ends: 14 [2025-03-17 15:01:16,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:01:16,933 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:16,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:16,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-03-17 15:01:16,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2025-03-17 15:01:16,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 states have internal predecessors, (13), 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 15:01:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-03-17 15:01:16,960 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 4 [2025-03-17 15:01:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:16,960 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-03-17 15:01:16,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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 15:01:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2025-03-17 15:01:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 15:01:16,961 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:16,962 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 15:01:16,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:01:16,962 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 15:01:16,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:16,963 INFO L85 PathProgramCache]: Analyzing trace with hash 48635728, now seen corresponding path program 1 times [2025-03-17 15:01:16,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:16,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004961661] [2025-03-17 15:01:16,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:16,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:16,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 15:01:16,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 15:01:16,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:16,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:17,015 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 15:01:17,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:17,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004961661] [2025-03-17 15:01:17,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004961661] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:17,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:01:17,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:01:17,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934909125] [2025-03-17 15:01:17,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:17,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:01:17,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:17,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:01:17,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:01:17,020 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 15:01:17,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:17,043 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2025-03-17 15:01:17,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:01:17,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2025-03-17 15:01:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:17,044 INFO L225 Difference]: With dead ends: 15 [2025-03-17 15:01:17,044 INFO L226 Difference]: Without dead ends: 14 [2025-03-17 15:01:17,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:01:17,045 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:17,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:17,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-03-17 15:01:17,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-03-17 15:01:17,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2025-03-17 15:01:17,050 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2025-03-17 15:01:17,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:17,050 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2025-03-17 15:01:17,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 15:01:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2025-03-17 15:01:17,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 15:01:17,051 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:17,051 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 15:01:17,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:01:17,051 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 15:01:17,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1507707549, now seen corresponding path program 1 times [2025-03-17 15:01:17,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:17,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132781829] [2025-03-17 15:01:17,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:17,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:17,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 15:01:17,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 15:01:17,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:17,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:17,109 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 15:01:17,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:17,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132781829] [2025-03-17 15:01:17,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132781829] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:17,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:01:17,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:01:17,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659388949] [2025-03-17 15:01:17,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:17,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:01:17,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:17,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:01:17,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:01:17,112 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 15:01:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:17,135 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2025-03-17 15:01:17,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:01:17,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2025-03-17 15:01:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:17,136 INFO L225 Difference]: With dead ends: 14 [2025-03-17 15:01:17,136 INFO L226 Difference]: Without dead ends: 13 [2025-03-17 15:01:17,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:01:17,137 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:17,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:17,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-03-17 15:01:17,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-03-17 15:01:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 states have internal predecessors, (13), 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 15:01:17,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2025-03-17 15:01:17,142 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2025-03-17 15:01:17,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:17,143 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2025-03-17 15:01:17,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 15:01:17,143 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2025-03-17 15:01:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 15:01:17,144 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:17,144 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:01:17,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 15:01:17,144 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 15:01:17,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:17,144 INFO L85 PathProgramCache]: Analyzing trace with hash -505706258, now seen corresponding path program 1 times [2025-03-17 15:01:17,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:17,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114000305] [2025-03-17 15:01:17,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:17,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:17,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 15:01:17,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 15:01:17,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:17,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:17,197 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 15:01:17,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:17,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114000305] [2025-03-17 15:01:17,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114000305] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:17,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:01:17,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:01:17,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185323299] [2025-03-17 15:01:17,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:17,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:01:17,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:17,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:01:17,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:01:17,199 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:17,217 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2025-03-17 15:01:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:01:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 15:01:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:17,218 INFO L225 Difference]: With dead ends: 16 [2025-03-17 15:01:17,218 INFO L226 Difference]: Without dead ends: 15 [2025-03-17 15:01:17,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:01:17,218 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:17,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:17,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-17 15:01:17,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-17 15:01:17,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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 15:01:17,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2025-03-17 15:01:17,220 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2025-03-17 15:01:17,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:17,221 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2025-03-17 15:01:17,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:17,221 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2025-03-17 15:01:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 15:01:17,221 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:17,221 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:01:17,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:01:17,221 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:17,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:17,223 INFO L85 PathProgramCache]: Analyzing trace with hash -652409908, now seen corresponding path program 1 times [2025-03-17 15:01:17,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:17,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226888343] [2025-03-17 15:01:17,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:17,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:17,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:01:17,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:01:17,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:17,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:17,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:17,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:17,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226888343] [2025-03-17 15:01:17,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226888343] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:17,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347561168] [2025-03-17 15:01:17,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:17,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:17,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:17,306 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 15:01:17,308 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 15:01:17,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:01:17,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:01:17,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:17,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:17,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:01:17,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:17,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:01:17,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347561168] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:17,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:01:17,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-17 15:01:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413030120] [2025-03-17 15:01:17,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:17,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:01:17,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:17,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:01:17,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:01:17,410 INFO L87 Difference]: Start difference. First operand 15 states and 15 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 15:01:17,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:17,438 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2025-03-17 15:01:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:01:17,438 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 15:01:17,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:17,439 INFO L225 Difference]: With dead ends: 15 [2025-03-17 15:01:17,439 INFO L226 Difference]: Without dead ends: 14 [2025-03-17 15:01:17,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:01:17,439 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:17,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-03-17 15:01:17,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-03-17 15:01:17,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:17,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2025-03-17 15:01:17,446 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2025-03-17 15:01:17,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:17,446 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2025-03-17 15:01:17,446 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 15:01:17,447 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2025-03-17 15:01:17,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 15:01:17,447 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:17,448 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 15:01:17,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 15:01:17,651 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 15:01:17,651 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:17,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:17,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1250129315, now seen corresponding path program 1 times [2025-03-17 15:01:17,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:17,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312640616] [2025-03-17 15:01:17,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:17,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:17,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 15:01:17,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 15:01:17,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:17,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:17,703 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 15:01:17,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:17,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312640616] [2025-03-17 15:01:17,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312640616] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:17,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482098139] [2025-03-17 15:01:17,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:17,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:17,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:17,706 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 15:01:17,707 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 15:01:17,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 15:01:17,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 15:01:17,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:17,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:17,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:01:17,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:17,806 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 15:01:17,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:17,878 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 15:01:17,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482098139] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:17,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:17,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 15:01:17,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551907479] [2025-03-17 15:01:17,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:17,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:01:17,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:17,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:01:17,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:01:17,880 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:17,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:17,926 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2025-03-17 15:01:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:01:17,926 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-17 15:01:17,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:17,926 INFO L225 Difference]: With dead ends: 23 [2025-03-17 15:01:17,926 INFO L226 Difference]: Without dead ends: 22 [2025-03-17 15:01:17,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:01:17,927 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:17,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-03-17 15:01:17,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-03-17 15:01:17,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 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 15:01:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2025-03-17 15:01:17,929 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2025-03-17 15:01:17,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:17,929 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2025-03-17 15:01:17,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:17,929 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2025-03-17 15:01:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 15:01:17,929 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:17,932 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:01:17,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 15:01:18,132 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 15:01:18,133 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 15:01:18,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:18,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1216571775, now seen corresponding path program 1 times [2025-03-17 15:01:18,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:18,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515973198] [2025-03-17 15:01:18,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:18,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:18,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 15:01:18,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 15:01:18,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:18,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:18,201 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 15:01:18,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515973198] [2025-03-17 15:01:18,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515973198] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:18,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138712055] [2025-03-17 15:01:18,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:18,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:18,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:18,203 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 15:01:18,204 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 15:01:18,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 15:01:18,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 15:01:18,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:18,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:18,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:01:18,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:18,242 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 15:01:18,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:18,275 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 15:01:18,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138712055] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:18,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:18,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-17 15:01:18,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054083519] [2025-03-17 15:01:18,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:18,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:01:18,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:18,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:01:18,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:01:18,276 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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 15:01:18,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:18,324 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2025-03-17 15:01:18,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:01:18,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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 12 [2025-03-17 15:01:18,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:18,325 INFO L225 Difference]: With dead ends: 30 [2025-03-17 15:01:18,325 INFO L226 Difference]: Without dead ends: 29 [2025-03-17 15:01:18,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:01:18,325 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:18,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:18,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-03-17 15:01:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2025-03-17 15:01:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 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 15:01:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2025-03-17 15:01:18,328 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 12 [2025-03-17 15:01:18,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:18,328 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2025-03-17 15:01:18,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 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 15:01:18,328 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2025-03-17 15:01:18,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-17 15:01:18,328 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:18,328 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1] [2025-03-17 15:01:18,334 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 15:01:18,533 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 15:01:18,533 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:18,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:18,533 INFO L85 PathProgramCache]: Analyzing trace with hash -855775805, now seen corresponding path program 2 times [2025-03-17 15:01:18,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:18,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853518776] [2025-03-17 15:01:18,534 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:18,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:18,537 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 2 equivalence classes. [2025-03-17 15:01:18,542 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 15:01:18,542 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:01:18,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:18,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:18,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853518776] [2025-03-17 15:01:18,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853518776] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:18,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345689036] [2025-03-17 15:01:18,656 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:18,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:18,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:18,658 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 15:01:18,660 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 15:01:18,679 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 2 equivalence classes. [2025-03-17 15:01:18,689 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 15:01:18,689 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:01:18,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:18,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:01:18,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:18,882 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:18,882 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:19,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345689036] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:19,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:19,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2025-03-17 15:01:19,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593572743] [2025-03-17 15:01:19,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:19,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 15:01:19,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:19,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 15:01:19,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:01:19,023 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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 15:01:19,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:19,351 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2025-03-17 15:01:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 15:01:19,351 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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 20 [2025-03-17 15:01:19,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:19,351 INFO L225 Difference]: With dead ends: 44 [2025-03-17 15:01:19,351 INFO L226 Difference]: Without dead ends: 43 [2025-03-17 15:01:19,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=1087, Unknown=0, NotChecked=0, Total=1332 [2025-03-17 15:01:19,352 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:19,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:01:19,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2025-03-17 15:01:19,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2025-03-17 15:01:19,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.1) internal successors, (44), 41 states have internal predecessors, (44), 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 15:01:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2025-03-17 15:01:19,358 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 20 [2025-03-17 15:01:19,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:19,358 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2025-03-17 15:01:19,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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 15:01:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2025-03-17 15:01:19,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-17 15:01:19,358 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:19,358 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1] [2025-03-17 15:01:19,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 15:01:19,559 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 15:01:19,559 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 15:01:19,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:19,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2006894418, now seen corresponding path program 2 times [2025-03-17 15:01:19,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:19,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391783454] [2025-03-17 15:01:19,560 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:19,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:19,563 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-03-17 15:01:19,564 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 27 statements. [2025-03-17 15:01:19,565 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:01:19,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-17 15:01:19,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391783454] [2025-03-17 15:01:19,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391783454] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369834942] [2025-03-17 15:01:19,587 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:19,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:19,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:19,589 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 15:01:19,591 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 15:01:19,609 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-03-17 15:01:19,614 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 27 statements. [2025-03-17 15:01:19,614 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:01:19,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:19,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:01:19,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-17 15:01:19,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-17 15:01:19,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369834942] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:19,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:19,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-17 15:01:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942151043] [2025-03-17 15:01:19,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:19,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:01:19,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:19,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:01:19,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:01:19,690 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 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 15:01:19,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:19,723 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2025-03-17 15:01:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:01:19,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 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 27 [2025-03-17 15:01:19,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:19,724 INFO L225 Difference]: With dead ends: 42 [2025-03-17 15:01:19,724 INFO L226 Difference]: Without dead ends: 41 [2025-03-17 15:01:19,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:01:19,724 INFO L435 NwaCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:19,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:19,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-03-17 15:01:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2025-03-17 15:01:19,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 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 15:01:19,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2025-03-17 15:01:19,727 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 27 [2025-03-17 15:01:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:19,727 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2025-03-17 15:01:19,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 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 15:01:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2025-03-17 15:01:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-17 15:01:19,728 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:19,728 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1] [2025-03-17 15:01:19,736 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 15:01:19,928 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 15:01:19,928 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:19,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:19,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1446785533, now seen corresponding path program 3 times [2025-03-17 15:01:19,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:19,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603299858] [2025-03-17 15:01:19,929 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:01:19,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:19,933 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 8 equivalence classes. [2025-03-17 15:01:19,949 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 15:01:19,949 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-17 15:01:19,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:20,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:20,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603299858] [2025-03-17 15:01:20,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603299858] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:20,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117540381] [2025-03-17 15:01:20,271 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:01:20,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:20,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:20,273 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 15:01:20,275 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 15:01:20,297 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 8 equivalence classes. [2025-03-17 15:01:20,313 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 15:01:20,314 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-17 15:01:20,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:20,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-17 15:01:20,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:20,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:21,336 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:21,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117540381] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:21,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:21,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2025-03-17 15:01:21,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476137022] [2025-03-17 15:01:21,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:21,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-03-17 15:01:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:21,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-03-17 15:01:21,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1944, Unknown=0, NotChecked=0, Total=2162 [2025-03-17 15:01:21,338 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 47 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 47 states have internal predecessors, (118), 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 15:01:23,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:23,299 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2025-03-17 15:01:23,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-03-17 15:01:23,300 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 47 states have internal predecessors, (118), 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 40 [2025-03-17 15:01:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:23,300 INFO L225 Difference]: With dead ends: 82 [2025-03-17 15:01:23,300 INFO L226 Difference]: Without dead ends: 81 [2025-03-17 15:01:23,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1272 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1193, Invalid=6117, Unknown=0, NotChecked=0, Total=7310 [2025-03-17 15:01:23,303 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 77 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:23,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 3 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:01:23,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-03-17 15:01:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2025-03-17 15:01:23,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 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 15:01:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2025-03-17 15:01:23,310 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 40 [2025-03-17 15:01:23,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:23,310 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2025-03-17 15:01:23,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.5652173913043477) internal successors, (118), 47 states have internal predecessors, (118), 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 15:01:23,310 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2025-03-17 15:01:23,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-17 15:01:23,311 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:23,311 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 1, 1, 1] [2025-03-17 15:01:23,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 15:01:23,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:23,514 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:23,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:23,514 INFO L85 PathProgramCache]: Analyzing trace with hash 2039201411, now seen corresponding path program 4 times [2025-03-17 15:01:23,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:23,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185000122] [2025-03-17 15:01:23,514 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:01:23,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:23,519 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 80 statements into 2 equivalence classes. [2025-03-17 15:01:23,547 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 15:01:23,547 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:01:23,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:24,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:24,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185000122] [2025-03-17 15:01:24,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185000122] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:24,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251842441] [2025-03-17 15:01:24,327 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:01:24,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:24,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:24,328 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:01:24,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:01:24,348 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 80 statements into 2 equivalence classes. [2025-03-17 15:01:24,365 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 15:01:24,365 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:01:24,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:24,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-17 15:01:24,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:25,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:26,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251842441] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:26,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:26,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2025-03-17 15:01:26,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523351400] [2025-03-17 15:01:26,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:26,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2025-03-17 15:01:26,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:26,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2025-03-17 15:01:26,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=910, Invalid=8020, Unknown=0, NotChecked=0, Total=8930 [2025-03-17 15:01:26,614 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand has 95 states, 94 states have (on average 2.5319148936170213) internal successors, (238), 95 states have internal predecessors, (238), 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 15:01:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:30,137 INFO L93 Difference]: Finished difference Result 162 states and 177 transitions. [2025-03-17 15:01:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-03-17 15:01:30,137 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.5319148936170213) internal successors, (238), 95 states have internal predecessors, (238), 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 80 [2025-03-17 15:01:30,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:30,138 INFO L225 Difference]: With dead ends: 162 [2025-03-17 15:01:30,138 INFO L226 Difference]: Without dead ends: 161 [2025-03-17 15:01:30,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4379 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3131, Invalid=20431, Unknown=0, NotChecked=0, Total=23562 [2025-03-17 15:01:30,142 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3739 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 3740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:30,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3 Invalid, 3740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3739 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-17 15:01:30,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-03-17 15:01:30,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2025-03-17 15:01:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 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 15:01:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2025-03-17 15:01:30,151 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 80 [2025-03-17 15:01:30,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:30,151 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2025-03-17 15:01:30,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.5319148936170213) internal successors, (238), 95 states have internal predecessors, (238), 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 15:01:30,152 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2025-03-17 15:01:30,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-17 15:01:30,154 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:30,155 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 1, 1, 1] [2025-03-17 15:01:30,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 15:01:30,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:30,355 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:30,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash -708042877, now seen corresponding path program 5 times [2025-03-17 15:01:30,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:30,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471380064] [2025-03-17 15:01:30,356 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:01:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:30,361 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 160 statements into 32 equivalence classes. [2025-03-17 15:01:30,414 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 15:01:30,415 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2025-03-17 15:01:30,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:32,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:32,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:32,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471380064] [2025-03-17 15:01:32,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471380064] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:32,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265821985] [2025-03-17 15:01:32,945 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:01:32,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:32,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:32,947 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:01:32,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:01:32,976 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 160 statements into 32 equivalence classes. [2025-03-17 15:01:33,024 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) and asserted 160 of 160 statements. [2025-03-17 15:01:33,024 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2025-03-17 15:01:33,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:33,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-03-17 15:01:33,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:36,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:36,477 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:41,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265821985] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:41,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:41,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 64, 64] total 191 [2025-03-17 15:01:41,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438892712] [2025-03-17 15:01:41,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:41,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2025-03-17 15:01:41,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:41,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2025-03-17 15:01:41,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3360, Invalid=33312, Unknown=0, NotChecked=0, Total=36672 [2025-03-17 15:01:41,114 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand has 192 states, 191 states have (on average 2.5026178010471205) internal successors, (478), 192 states have internal predecessors, (478), 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 15:01:57,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:57,515 INFO L93 Difference]: Finished difference Result 322 states and 353 transitions. [2025-03-17 15:01:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2025-03-17 15:01:57,516 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.5026178010471205) internal successors, (478), 192 states have internal predecessors, (478), 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 160 [2025-03-17 15:01:57,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:57,517 INFO L225 Difference]: With dead ends: 322 [2025-03-17 15:01:57,517 INFO L226 Difference]: Without dead ends: 321 [2025-03-17 15:01:57,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 314 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18811 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=12543, Invalid=86997, Unknown=0, NotChecked=0, Total=99540 [2025-03-17 15:01:57,522 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 102 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15157 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 15191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 15157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:57,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 3 Invalid, 15191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 15157 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-03-17 15:01:57,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-03-17 15:01:57,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2025-03-17 15:01:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.003125) internal successors, (321), 320 states have internal predecessors, (321), 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 15:01:57,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2025-03-17 15:01:57,545 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 160 [2025-03-17 15:01:57,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:57,546 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2025-03-17 15:01:57,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.5026178010471205) internal successors, (478), 192 states have internal predecessors, (478), 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 15:01:57,546 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2025-03-17 15:01:57,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2025-03-17 15:01:57,548 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:57,548 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 1, 1, 1] [2025-03-17 15:01:57,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 15:01:57,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-17 15:01:57,749 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:57,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:57,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1594810755, now seen corresponding path program 6 times [2025-03-17 15:01:57,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:57,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782127574] [2025-03-17 15:01:57,750 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:01:57,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:57,760 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 320 statements into 64 equivalence classes. [2025-03-17 15:01:57,949 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) and asserted 320 of 320 statements. [2025-03-17 15:01:57,949 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2025-03-17 15:01:57,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:02:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:02:06,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:02:06,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782127574] [2025-03-17 15:02:06,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782127574] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:02:06,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758513469] [2025-03-17 15:02:06,660 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:02:06,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:02:06,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:02:06,662 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:02:06,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:02:06,695 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 320 statements into 64 equivalence classes. [2025-03-17 15:02:06,882 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) and asserted 320 of 320 statements. [2025-03-17 15:02:06,882 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2025-03-17 15:02:06,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:02:06,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 192 conjuncts are in the unsatisfiable core [2025-03-17 15:02:06,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:02:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:02:18,695 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:02:37,245 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:02:37,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758513469] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:02:37,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:02:37,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2025-03-17 15:02:37,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720838785] [2025-03-17 15:02:37,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:02:37,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2025-03-17 15:02:37,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:02:37,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2025-03-17 15:02:37,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11991, Invalid=134315, Unknown=0, NotChecked=0, Total=146306 [2025-03-17 15:02:37,254 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand has 383 states, 382 states have (on average 2.507853403141361) internal successors, (958), 383 states have internal predecessors, (958), 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)