./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-lit/hh2012-ex3.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-lit/hh2012-ex3.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 3c7177334f88b94ca4ee99044935e396702561856a6f48616f98f91aafc609bb --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:00:06,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:00:06,766 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:00:06,769 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:00:06,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:00:06,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:00:06,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:00:06,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:00:06,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:00:06,794 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:00:06,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:00:06,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:00:06,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:00:06,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:00:06,794 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:00:06,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:00:06,795 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:00:06,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:00:06,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:00:06,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:00:06,796 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 -> 3c7177334f88b94ca4ee99044935e396702561856a6f48616f98f91aafc609bb [2025-03-17 15:00:07,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:00:07,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:00:07,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:00:07,020 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:00:07,020 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:00:07,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/hh2012-ex3.i [2025-03-17 15:00:08,125 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6ea9e8f9/2b875684e7f54f8ea3cea51937ef60c6/FLAG924e2e236 [2025-03-17 15:00:08,347 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:00:08,347 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hh2012-ex3.i [2025-03-17 15:00:08,354 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6ea9e8f9/2b875684e7f54f8ea3cea51937ef60c6/FLAG924e2e236 [2025-03-17 15:00:08,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6ea9e8f9/2b875684e7f54f8ea3cea51937ef60c6 [2025-03-17 15:00:08,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:00:08,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:00:08,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:00:08,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:00:08,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:00:08,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d748f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08, skipping insertion in model container [2025-03-17 15:00:08,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,390 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:00:08,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:00:08,514 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:00:08,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:00:08,539 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:00:08,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08 WrapperNode [2025-03-17 15:00:08,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:00:08,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:00:08,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:00:08,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:00:08,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,559 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2025-03-17 15:00:08,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:00:08,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:00:08,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:00:08,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:00:08,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,573 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,582 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 15:00:08,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,584 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:00:08,587 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:00:08,587 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:00:08,587 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:00:08,587 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (1/1) ... [2025-03-17 15:00:08,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:00:08,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:08,610 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 15:00:08,612 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 15:00:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:00:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:00:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:00:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:00:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:00:08,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:00:08,662 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:00:08,663 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:00:08,772 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-03-17 15:00:08,772 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:00:08,778 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:00:08,779 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:00:08,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:00:08 BoogieIcfgContainer [2025-03-17 15:00:08,780 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:00:08,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:00:08,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:00:08,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:00:08,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:00:08" (1/3) ... [2025-03-17 15:00:08,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe0f316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:00:08, skipping insertion in model container [2025-03-17 15:00:08,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:00:08" (2/3) ... [2025-03-17 15:00:08,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe0f316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:00:08, skipping insertion in model container [2025-03-17 15:00:08,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:00:08" (3/3) ... [2025-03-17 15:00:08,787 INFO L128 eAbstractionObserver]: Analyzing ICFG hh2012-ex3.i [2025-03-17 15:00:08,797 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:00:08,798 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hh2012-ex3.i that has 2 procedures, 43 locations, 1 initial locations, 2 loop locations, and 12 error locations. [2025-03-17 15:00:08,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:00:08,840 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;@5db29a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:00:08,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2025-03-17 15:00:08,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 34 states have internal predecessors, (37), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:00:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 15:00:08,849 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:08,850 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 15:00:08,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:08,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2030687, now seen corresponding path program 1 times [2025-03-17 15:00:08,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:08,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112214511] [2025-03-17 15:00:08,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:08,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:08,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 15:00:08,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 15:00:08,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:08,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:08,984 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 15:00:08,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:08,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112214511] [2025-03-17 15:00:08,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112214511] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:08,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:00:08,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:00:08,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537790788] [2025-03-17 15:00:08,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:08,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:00:08,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:09,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:00:09,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:00:09,004 INFO L87 Difference]: Start difference. First operand has 43 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 34 states have internal predecessors, (37), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:00:09,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:09,067 INFO L93 Difference]: Finished difference Result 100 states and 144 transitions. [2025-03-17 15:00:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:00:09,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-17 15:00:09,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:09,077 INFO L225 Difference]: With dead ends: 100 [2025-03-17 15:00:09,077 INFO L226 Difference]: Without dead ends: 55 [2025-03-17 15:00:09,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 15:00:09,083 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 9 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:09,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 108 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:00:09,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-03-17 15:00:09,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 43. [2025-03-17 15:00:09,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 34 states have internal predecessors, (36), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:00:09,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2025-03-17 15:00:09,119 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 4 [2025-03-17 15:00:09,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:09,120 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2025-03-17 15:00:09,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:00:09,121 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2025-03-17 15:00:09,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 15:00:09,121 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:09,121 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 15:00:09,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:00:09,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:09,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1951490173, now seen corresponding path program 1 times [2025-03-17 15:00:09,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:09,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687401181] [2025-03-17 15:00:09,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:09,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:09,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 15:00:09,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 15:00:09,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:09,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:09,188 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 15:00:09,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:09,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687401181] [2025-03-17 15:00:09,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687401181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:09,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:00:09,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:00:09,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305751463] [2025-03-17 15:00:09,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:09,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:00:09,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:09,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:00:09,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:00:09,190 INFO L87 Difference]: Start difference. First operand 43 states and 52 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 15:00:09,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:09,241 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2025-03-17 15:00:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:00:09,242 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 15:00:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:09,242 INFO L225 Difference]: With dead ends: 88 [2025-03-17 15:00:09,243 INFO L226 Difference]: Without dead ends: 50 [2025-03-17 15:00:09,243 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 15:00:09,244 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 3 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:09,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 111 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:00:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-03-17 15:00:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2025-03-17 15:00:09,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 38 states have internal predecessors, (42), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:00:09,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2025-03-17 15:00:09,249 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 6 [2025-03-17 15:00:09,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:09,249 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2025-03-17 15:00:09,249 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 15:00:09,249 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2025-03-17 15:00:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-17 15:00:09,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:09,250 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:09,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:00:09,250 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:09,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:09,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1035378973, now seen corresponding path program 1 times [2025-03-17 15:00:09,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:09,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115487808] [2025-03-17 15:00:09,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:09,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:09,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 15:00:09,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 15:00:09,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:09,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:00:09,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:09,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115487808] [2025-03-17 15:00:09,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115487808] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:09,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:00:09,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:00:09,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906905538] [2025-03-17 15:00:09,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:09,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:00:09,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:09,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:00:09,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:00:09,379 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:00:09,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:09,469 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2025-03-17 15:00:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:00:09,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2025-03-17 15:00:09,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:09,471 INFO L225 Difference]: With dead ends: 62 [2025-03-17 15:00:09,471 INFO L226 Difference]: Without dead ends: 60 [2025-03-17 15:00:09,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:00:09,472 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:09,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 95 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:00:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-03-17 15:00:09,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2025-03-17 15:00:09,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.5) internal successors, (42), 38 states have internal predecessors, (42), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:00:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2025-03-17 15:00:09,477 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 18 [2025-03-17 15:00:09,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:09,477 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2025-03-17 15:00:09,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:00:09,480 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2025-03-17 15:00:09,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-17 15:00:09,480 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:09,480 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:09,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 15:00:09,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:09,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:09,481 INFO L85 PathProgramCache]: Analyzing trace with hash 2031977080, now seen corresponding path program 1 times [2025-03-17 15:00:09,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:09,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555475177] [2025-03-17 15:00:09,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:09,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:09,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 15:00:09,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 15:00:09,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:09,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:00:09,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:09,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555475177] [2025-03-17 15:00:09,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555475177] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:09,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:00:09,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 15:00:09,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824070252] [2025-03-17 15:00:09,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:09,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:00:09,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:09,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:00:09,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:00:09,575 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:00:09,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:09,634 INFO L93 Difference]: Finished difference Result 105 states and 131 transitions. [2025-03-17 15:00:09,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:00:09,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-03-17 15:00:09,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:09,635 INFO L225 Difference]: With dead ends: 105 [2025-03-17 15:00:09,635 INFO L226 Difference]: Without dead ends: 60 [2025-03-17 15:00:09,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:00:09,636 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:09,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 108 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:00:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-03-17 15:00:09,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2025-03-17 15:00:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 40 states have internal predecessors, (44), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 15:00:09,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2025-03-17 15:00:09,644 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 19 [2025-03-17 15:00:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:09,645 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2025-03-17 15:00:09,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:00:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2025-03-17 15:00:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-17 15:00:09,646 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:09,646 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:09,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:00:09,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:09,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1340595026, now seen corresponding path program 1 times [2025-03-17 15:00:09,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:09,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262755164] [2025-03-17 15:00:09,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:09,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:09,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 15:00:09,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 15:00:09,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:09,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:09,738 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:00:09,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:09,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262755164] [2025-03-17 15:00:09,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262755164] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:09,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316024250] [2025-03-17 15:00:09,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:09,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:09,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:09,745 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 15:00:09,747 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 15:00:09,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 15:00:09,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 15:00:09,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:09,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:09,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:00:09,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:09,839 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:00:09,839 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:00:09,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316024250] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:09,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:00:09,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-17 15:00:09,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640279794] [2025-03-17 15:00:09,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:09,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:00:09,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:09,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:00:09,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:00:09,840 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:00:09,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:09,896 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2025-03-17 15:00:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:00:09,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2025-03-17 15:00:09,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:09,897 INFO L225 Difference]: With dead ends: 90 [2025-03-17 15:00:09,897 INFO L226 Difference]: Without dead ends: 89 [2025-03-17 15:00:09,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:00:09,898 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 12 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:09,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 128 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:00:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-03-17 15:00:09,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2025-03-17 15:00:09,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 52 states have internal predecessors, (62), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:00:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2025-03-17 15:00:09,907 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 102 transitions. Word has length 31 [2025-03-17 15:00:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:09,907 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 102 transitions. [2025-03-17 15:00:09,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:00:09,907 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 102 transitions. [2025-03-17 15:00:09,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 15:00:09,912 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:09,912 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:09,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 15:00:10,112 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 15:00:10,113 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:10,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1391227155, now seen corresponding path program 1 times [2025-03-17 15:00:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:10,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767816371] [2025-03-17 15:00:10,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:10,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:10,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 15:00:10,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:00:10,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:10,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:00:10,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:10,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767816371] [2025-03-17 15:00:10,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767816371] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:10,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617250024] [2025-03-17 15:00:10,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:10,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:10,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:10,180 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 15:00:10,181 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 15:00:10,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 15:00:10,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:00:10,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:10,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:10,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:00:10,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:00:10,250 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:00:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:00:10,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617250024] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:00:10,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:00:10,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-17 15:00:10,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175033488] [2025-03-17 15:00:10,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:00:10,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:00:10,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:10,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:00:10,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:00:10,317 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:00:10,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:10,422 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2025-03-17 15:00:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:00:10,423 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 32 [2025-03-17 15:00:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:10,424 INFO L225 Difference]: With dead ends: 131 [2025-03-17 15:00:10,424 INFO L226 Difference]: Without dead ends: 130 [2025-03-17 15:00:10,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:00:10,425 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:10,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 160 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:00:10,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2025-03-17 15:00:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 100. [2025-03-17 15:00:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 60 states have (on average 1.5) internal successors, (90), 70 states have internal predecessors, (90), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-17 15:00:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 146 transitions. [2025-03-17 15:00:10,438 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 146 transitions. Word has length 32 [2025-03-17 15:00:10,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:10,439 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 146 transitions. [2025-03-17 15:00:10,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-17 15:00:10,440 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 146 transitions. [2025-03-17 15:00:10,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-17 15:00:10,440 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:10,440 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:10,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 15:00:10,640 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 15:00:10,641 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:10,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:10,641 INFO L85 PathProgramCache]: Analyzing trace with hash -178368848, now seen corresponding path program 1 times [2025-03-17 15:00:10,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:10,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145775966] [2025-03-17 15:00:10,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:10,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:10,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:00:10,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:00:10,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:10,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:00:10,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:10,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145775966] [2025-03-17 15:00:10,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145775966] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:10,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473565275] [2025-03-17 15:00:10,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:10,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:10,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:10,713 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 15:00:10,715 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 15:00:10,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:00:10,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:00:10,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:10,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:10,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:00:10,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:00:10,773 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:00:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473565275] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:10,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:00:10,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-17 15:00:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639352855] [2025-03-17 15:00:10,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:10,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:00:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:10,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:00:10,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:00:10,774 INFO L87 Difference]: Start difference. First operand 100 states and 146 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:00:10,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:10,821 INFO L93 Difference]: Finished difference Result 101 states and 146 transitions. [2025-03-17 15:00:10,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:00:10,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2025-03-17 15:00:10,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:10,822 INFO L225 Difference]: With dead ends: 101 [2025-03-17 15:00:10,822 INFO L226 Difference]: Without dead ends: 99 [2025-03-17 15:00:10,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:00:10,823 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 10 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:10,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 100 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:00:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-03-17 15:00:10,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 98. [2025-03-17 15:00:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 68 states have internal predecessors, (82), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-17 15:00:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 138 transitions. [2025-03-17 15:00:10,836 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 138 transitions. Word has length 33 [2025-03-17 15:00:10,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:10,836 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 138 transitions. [2025-03-17 15:00:10,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:00:10,836 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 138 transitions. [2025-03-17 15:00:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 15:00:10,837 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:10,837 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:10,842 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 15:00:11,037 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 15:00:11,037 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:11,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:11,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1234466997, now seen corresponding path program 1 times [2025-03-17 15:00:11,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:11,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265956677] [2025-03-17 15:00:11,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:11,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:11,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:00:11,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:00:11,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:11,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 15:00:11,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:11,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265956677] [2025-03-17 15:00:11,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265956677] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:11,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:00:11,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:00:11,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893665833] [2025-03-17 15:00:11,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:11,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:00:11,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:11,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:00:11,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:00:11,067 INFO L87 Difference]: Start difference. First operand 98 states and 138 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:00:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:11,095 INFO L93 Difference]: Finished difference Result 98 states and 138 transitions. [2025-03-17 15:00:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:00:11,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2025-03-17 15:00:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:11,096 INFO L225 Difference]: With dead ends: 98 [2025-03-17 15:00:11,096 INFO L226 Difference]: Without dead ends: 97 [2025-03-17 15:00:11,097 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 15:00:11,097 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 2 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:11,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 96 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:00:11,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-03-17 15:00:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2025-03-17 15:00:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.3) internal successors, (78), 67 states have internal predecessors, (78), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2025-03-17 15:00:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 134 transitions. [2025-03-17 15:00:11,112 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 134 transitions. Word has length 34 [2025-03-17 15:00:11,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:11,112 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 134 transitions. [2025-03-17 15:00:11,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-17 15:00:11,112 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 134 transitions. [2025-03-17 15:00:11,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-17 15:00:11,113 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:11,113 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:11,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 15:00:11,113 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:11,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:11,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1009942309, now seen corresponding path program 1 times [2025-03-17 15:00:11,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:11,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140109148] [2025-03-17 15:00:11,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:11,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:11,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 15:00:11,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 15:00:11,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:11,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:00:11,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:11,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140109148] [2025-03-17 15:00:11,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140109148] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:11,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183268756] [2025-03-17 15:00:11,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:11,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:11,188 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 15:00:11,189 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 15:00:11,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 15:00:11,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 15:00:11,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:11,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:11,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:00:11,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:11,250 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:00:11,250 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:00:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 15:00:11,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183268756] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:00:11,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:00:11,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2025-03-17 15:00:11,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672941601] [2025-03-17 15:00:11,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:00:11,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:00:11,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:11,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:00:11,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:00:11,328 INFO L87 Difference]: Start difference. First operand 97 states and 134 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-17 15:00:11,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:11,429 INFO L93 Difference]: Finished difference Result 158 states and 215 transitions. [2025-03-17 15:00:11,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:00:11,430 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 46 [2025-03-17 15:00:11,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:11,431 INFO L225 Difference]: With dead ends: 158 [2025-03-17 15:00:11,431 INFO L226 Difference]: Without dead ends: 110 [2025-03-17 15:00:11,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:00:11,432 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 25 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:11,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 139 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:00:11,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-03-17 15:00:11,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2025-03-17 15:00:11,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 70 states have internal predecessors, (77), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-03-17 15:00:11,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 141 transitions. [2025-03-17 15:00:11,442 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 141 transitions. Word has length 46 [2025-03-17 15:00:11,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:11,443 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 141 transitions. [2025-03-17 15:00:11,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-17 15:00:11,443 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 141 transitions. [2025-03-17 15:00:11,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-17 15:00:11,449 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:11,450 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:11,456 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 15:00:11,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:11,651 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:11,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:11,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1837553757, now seen corresponding path program 1 times [2025-03-17 15:00:11,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:11,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009854906] [2025-03-17 15:00:11,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:11,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:11,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-17 15:00:11,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 15:00:11,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:11,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:11,765 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-17 15:00:11,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:11,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009854906] [2025-03-17 15:00:11,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009854906] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:11,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856058208] [2025-03-17 15:00:11,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:11,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:11,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:11,768 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 15:00:11,769 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 15:00:11,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-17 15:00:11,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-17 15:00:11,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:11,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:11,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:00:11,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:11,879 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 192 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2025-03-17 15:00:11,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:00:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-17 15:00:11,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856058208] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:00:11,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:00:11,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2025-03-17 15:00:11,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676058889] [2025-03-17 15:00:11,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:00:11,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:00:11,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:11,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:00:11,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:00:11,993 INFO L87 Difference]: Start difference. First operand 104 states and 141 transitions. Second operand has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2025-03-17 15:00:12,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:12,064 INFO L93 Difference]: Finished difference Result 174 states and 232 transitions. [2025-03-17 15:00:12,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:00:12,065 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 107 [2025-03-17 15:00:12,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:12,066 INFO L225 Difference]: With dead ends: 174 [2025-03-17 15:00:12,066 INFO L226 Difference]: Without dead ends: 119 [2025-03-17 15:00:12,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 205 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:00:12,067 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:12,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 138 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:00:12,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2025-03-17 15:00:12,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2025-03-17 15:00:12,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 77 states have internal predecessors, (85), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2025-03-17 15:00:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 157 transitions. [2025-03-17 15:00:12,074 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 157 transitions. Word has length 107 [2025-03-17 15:00:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:12,074 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 157 transitions. [2025-03-17 15:00:12,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 4 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2025-03-17 15:00:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 157 transitions. [2025-03-17 15:00:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-17 15:00:12,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:12,075 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2025-03-17 15:00:12,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 15:00:12,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-17 15:00:12,280 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:12,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:12,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1621913408, now seen corresponding path program 2 times [2025-03-17 15:00:12,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:12,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786857370] [2025-03-17 15:00:12,281 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:00:12,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:12,286 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 113 statements into 2 equivalence classes. [2025-03-17 15:00:12,293 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 15:00:12,293 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:00:12,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-17 15:00:12,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786857370] [2025-03-17 15:00:12,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786857370] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552533029] [2025-03-17 15:00:12,473 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:00:12,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:12,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:12,475 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 15:00:12,476 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 15:00:12,502 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 113 statements into 2 equivalence classes. [2025-03-17 15:00:12,523 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 15:00:12,523 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:00:12,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:12,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:00:12,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:12,608 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-17 15:00:12,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:00:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-03-17 15:00:12,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552533029] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:00:12,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:00:12,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-03-17 15:00:12,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741409150] [2025-03-17 15:00:12,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:00:12,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 15:00:12,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:12,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 15:00:12,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-03-17 15:00:12,806 INFO L87 Difference]: Start difference. First operand 115 states and 157 transitions. Second operand has 24 states, 23 states have (on average 3.217391304347826) internal successors, (74), 24 states have internal predecessors, (74), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2025-03-17 15:00:13,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:13,000 INFO L93 Difference]: Finished difference Result 277 states and 425 transitions. [2025-03-17 15:00:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 15:00:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.217391304347826) internal successors, (74), 24 states have internal predecessors, (74), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 113 [2025-03-17 15:00:13,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:13,002 INFO L225 Difference]: With dead ends: 277 [2025-03-17 15:00:13,002 INFO L226 Difference]: Without dead ends: 276 [2025-03-17 15:00:13,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-03-17 15:00:13,003 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 76 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:13,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 193 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:00:13,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2025-03-17 15:00:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 216. [2025-03-17 15:00:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 137 states have (on average 1.1824817518248176) internal successors, (162), 142 states have internal predecessors, (162), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2025-03-17 15:00:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 306 transitions. [2025-03-17 15:00:13,021 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 306 transitions. Word has length 113 [2025-03-17 15:00:13,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:13,021 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 306 transitions. [2025-03-17 15:00:13,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.217391304347826) internal successors, (74), 24 states have internal predecessors, (74), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2025-03-17 15:00:13,022 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2025-03-17 15:00:13,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-17 15:00:13,024 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:13,024 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:13,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 15:00:13,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:13,225 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:13,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:13,225 INFO L85 PathProgramCache]: Analyzing trace with hash -642103984, now seen corresponding path program 2 times [2025-03-17 15:00:13,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:13,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205512680] [2025-03-17 15:00:13,226 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:00:13,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:13,233 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-17 15:00:13,241 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 134 of 134 statements. [2025-03-17 15:00:13,241 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:00:13,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 51 proven. 19 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 15:00:13,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205512680] [2025-03-17 15:00:13,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205512680] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007544644] [2025-03-17 15:00:13,389 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:00:13,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:13,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:13,391 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 15:00:13,393 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 15:00:13,417 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-17 15:00:13,438 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 134 of 134 statements. [2025-03-17 15:00:13,438 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:00:13,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:13,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:00:13,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 15:00:13,538 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:00:13,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007544644] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:13,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:00:13,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 14 [2025-03-17 15:00:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329567727] [2025-03-17 15:00:13,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:13,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:00:13,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:13,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:00:13,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:00:13,539 INFO L87 Difference]: Start difference. First operand 216 states and 306 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2025-03-17 15:00:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:13,650 INFO L93 Difference]: Finished difference Result 228 states and 324 transitions. [2025-03-17 15:00:13,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:00:13,650 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 134 [2025-03-17 15:00:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:13,652 INFO L225 Difference]: With dead ends: 228 [2025-03-17 15:00:13,652 INFO L226 Difference]: Without dead ends: 226 [2025-03-17 15:00:13,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:00:13,653 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 6 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:13,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 403 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:00:13,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-03-17 15:00:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 225. [2025-03-17 15:00:13,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 142 states have (on average 1.1830985915492958) internal successors, (168), 147 states have internal predecessors, (168), 76 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2025-03-17 15:00:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 320 transitions. [2025-03-17 15:00:13,667 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 320 transitions. Word has length 134 [2025-03-17 15:00:13,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:13,667 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 320 transitions. [2025-03-17 15:00:13,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2025-03-17 15:00:13,667 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 320 transitions. [2025-03-17 15:00:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 15:00:13,668 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:13,668 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:13,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 15:00:13,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:13,869 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:13,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:13,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1569612951, now seen corresponding path program 1 times [2025-03-17 15:00:13,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:13,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809733170] [2025-03-17 15:00:13,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:13,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:13,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 15:00:13,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 15:00:13,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:13,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:14,041 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 15:00:14,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:14,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809733170] [2025-03-17 15:00:14,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809733170] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:14,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393196082] [2025-03-17 15:00:14,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:14,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:14,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:14,044 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 15:00:14,046 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 15:00:14,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-17 15:00:14,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 15:00:14,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:14,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:14,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:00:14,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 15:00:14,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:00:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 15:00:14,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393196082] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:00:14,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:00:14,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2025-03-17 15:00:14,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892332355] [2025-03-17 15:00:14,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:00:14,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-17 15:00:14,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:14,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-17 15:00:14,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2025-03-17 15:00:14,394 INFO L87 Difference]: Start difference. First operand 225 states and 320 transitions. Second operand has 25 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 25 states have internal predecessors, (83), 11 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 11 states have call predecessors, (44), 11 states have call successors, (44) [2025-03-17 15:00:14,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:14,564 INFO L93 Difference]: Finished difference Result 271 states and 386 transitions. [2025-03-17 15:00:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 15:00:14,565 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 25 states have internal predecessors, (83), 11 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 11 states have call predecessors, (44), 11 states have call successors, (44) Word has length 135 [2025-03-17 15:00:14,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:14,566 INFO L225 Difference]: With dead ends: 271 [2025-03-17 15:00:14,566 INFO L226 Difference]: Without dead ends: 269 [2025-03-17 15:00:14,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2025-03-17 15:00:14,567 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 33 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:14,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 176 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:00:14,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2025-03-17 15:00:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 234. [2025-03-17 15:00:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 148 states have (on average 1.162162162162162) internal successors, (172), 152 states have internal predecessors, (172), 80 states have call successors, (80), 1 states have call predecessors, (80), 1 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-17 15:00:14,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 332 transitions. [2025-03-17 15:00:14,584 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 332 transitions. Word has length 135 [2025-03-17 15:00:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:14,585 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 332 transitions. [2025-03-17 15:00:14,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 25 states have internal predecessors, (83), 11 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 11 states have call predecessors, (44), 11 states have call successors, (44) [2025-03-17 15:00:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 332 transitions. [2025-03-17 15:00:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-17 15:00:14,586 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:14,586 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:14,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 15:00:14,786 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,SelfDestructingSolverStorable12 [2025-03-17 15:00:14,787 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:14,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1879946354, now seen corresponding path program 1 times [2025-03-17 15:00:14,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:14,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880972481] [2025-03-17 15:00:14,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:14,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:14,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-17 15:00:14,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-17 15:00:14,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:14,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 814 trivial. 0 not checked. [2025-03-17 15:00:15,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:15,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880972481] [2025-03-17 15:00:15,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880972481] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:15,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467449989] [2025-03-17 15:00:15,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:15,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:15,027 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 15:00:15,029 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 15:00:15,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-17 15:00:15,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-17 15:00:15,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:15,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:15,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:00:15,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:15,228 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 70 proven. 10 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 15:00:15,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:00:15,480 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 20 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-17 15:00:15,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467449989] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:00:15,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:00:15,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 32 [2025-03-17 15:00:15,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441362709] [2025-03-17 15:00:15,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:00:15,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-17 15:00:15,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:15,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-17 15:00:15,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=831, Unknown=0, NotChecked=0, Total=1056 [2025-03-17 15:00:15,482 INFO L87 Difference]: Start difference. First operand 234 states and 332 transitions. Second operand has 33 states, 32 states have (on average 3.3125) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 11 states have call predecessors, (48), 11 states have call successors, (48) [2025-03-17 15:00:15,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:15,816 INFO L93 Difference]: Finished difference Result 234 states and 332 transitions. [2025-03-17 15:00:15,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 15:00:15,817 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.3125) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 11 states have call predecessors, (48), 11 states have call successors, (48) Word has length 140 [2025-03-17 15:00:15,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:15,818 INFO L225 Difference]: With dead ends: 234 [2025-03-17 15:00:15,819 INFO L226 Difference]: Without dead ends: 231 [2025-03-17 15:00:15,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=394, Invalid=1498, Unknown=0, NotChecked=0, Total=1892 [2025-03-17 15:00:15,820 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:15,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:00:15,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2025-03-17 15:00:15,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 176. [2025-03-17 15:00:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 113 states have (on average 1.079646017699115) internal successors, (122), 114 states have internal predecessors, (122), 60 states have call successors, (60), 1 states have call predecessors, (60), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-03-17 15:00:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 242 transitions. [2025-03-17 15:00:15,837 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 242 transitions. Word has length 140 [2025-03-17 15:00:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:15,837 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 242 transitions. [2025-03-17 15:00:15,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.3125) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 11 states have call predecessors, (48), 11 states have call successors, (48) [2025-03-17 15:00:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 242 transitions. [2025-03-17 15:00:15,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-17 15:00:15,839 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:15,839 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:15,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 15:00:16,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 15:00:16,043 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:16,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1828239262, now seen corresponding path program 1 times [2025-03-17 15:00:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:16,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924626441] [2025-03-17 15:00:16,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:16,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:16,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-17 15:00:16,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-17 15:00:16,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:16,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:16,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2025-03-17 15:00:16,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:16,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924626441] [2025-03-17 15:00:16,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924626441] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:16,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933928685] [2025-03-17 15:00:16,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:16,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:16,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:16,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:00:16,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:00:16,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-17 15:00:16,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-17 15:00:16,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:16,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:16,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:00:16,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2025-03-17 15:00:16,411 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:00:16,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933928685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:00:16,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:00:16,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 23 [2025-03-17 15:00:16,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881573985] [2025-03-17 15:00:16,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:00:16,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:00:16,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:16,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:00:16,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:00:16,413 INFO L87 Difference]: Start difference. First operand 176 states and 242 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2025-03-17 15:00:16,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:16,492 INFO L93 Difference]: Finished difference Result 237 states and 323 transitions. [2025-03-17 15:00:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 15:00:16,492 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 164 [2025-03-17 15:00:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:16,493 INFO L225 Difference]: With dead ends: 237 [2025-03-17 15:00:16,493 INFO L226 Difference]: Without dead ends: 118 [2025-03-17 15:00:16,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:00:16,494 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 18 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:16,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 148 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:00:16,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-03-17 15:00:16,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2025-03-17 15:00:16,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 76 states have (on average 1.013157894736842) internal successors, (77), 76 states have internal predecessors, (77), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2025-03-17 15:00:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 157 transitions. [2025-03-17 15:00:16,501 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 157 transitions. Word has length 164 [2025-03-17 15:00:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:16,502 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 157 transitions. [2025-03-17 15:00:16,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 5 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2025-03-17 15:00:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 157 transitions. [2025-03-17 15:00:16,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2025-03-17 15:00:16,504 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:00:16,504 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-03-17 15:00:16,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 15:00:16,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 15:00:16,704 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2025-03-17 15:00:16,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:00:16,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1389190566, now seen corresponding path program 1 times [2025-03-17 15:00:16,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:00:16,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036408900] [2025-03-17 15:00:16,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:16,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:00:16,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 273 statements into 1 equivalence classes. [2025-03-17 15:00:16,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 273 of 273 statements. [2025-03-17 15:00:16,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:16,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3456 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 3174 trivial. 0 not checked. [2025-03-17 15:00:17,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:00:17,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036408900] [2025-03-17 15:00:17,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036408900] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:00:17,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805100704] [2025-03-17 15:00:17,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:00:17,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:00:17,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:00:17,224 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:00:17,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 15:00:17,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 273 statements into 1 equivalence classes. [2025-03-17 15:00:17,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 273 of 273 statements. [2025-03-17 15:00:17,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:00:17,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:00:17,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 15:00:17,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:00:17,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3456 backedges. 36 proven. 266 refuted. 0 times theorem prover too weak. 3154 trivial. 0 not checked. [2025-03-17 15:00:17,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:00:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3456 backedges. 36 proven. 266 refuted. 0 times theorem prover too weak. 3154 trivial. 0 not checked. [2025-03-17 15:00:17,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805100704] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:00:17,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:00:17,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14, 14] total 35 [2025-03-17 15:00:17,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690317711] [2025-03-17 15:00:17,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:00:17,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-03-17 15:00:17,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:00:17,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-03-17 15:00:17,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=999, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 15:00:17,869 INFO L87 Difference]: Start difference. First operand 118 states and 157 transitions. Second operand has 36 states, 35 states have (on average 3.857142857142857) internal successors, (135), 36 states have internal predecessors, (135), 16 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 16 states have call predecessors, (68), 16 states have call successors, (68) [2025-03-17 15:00:18,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:00:18,253 INFO L93 Difference]: Finished difference Result 230 states and 311 transitions. [2025-03-17 15:00:18,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-03-17 15:00:18,254 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 3.857142857142857) internal successors, (135), 36 states have internal predecessors, (135), 16 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 16 states have call predecessors, (68), 16 states have call successors, (68) Word has length 273 [2025-03-17 15:00:18,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:00:18,255 INFO L225 Difference]: With dead ends: 230 [2025-03-17 15:00:18,255 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 15:00:18,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=508, Invalid=2042, Unknown=0, NotChecked=0, Total=2550 [2025-03-17 15:00:18,257 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 32 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:00:18,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 193 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:00:18,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 15:00:18,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 15:00:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:00:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 15:00:18,258 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 273 [2025-03-17 15:00:18,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:00:18,259 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 15:00:18,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 3.857142857142857) internal successors, (135), 36 states have internal predecessors, (135), 16 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 16 states have call predecessors, (68), 16 states have call successors, (68) [2025-03-17 15:00:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 15:00:18,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 15:00:18,261 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2025-03-17 15:00:18,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2025-03-17 15:00:18,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2025-03-17 15:00:18,263 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2025-03-17 15:00:18,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 15:00:18,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 15:00:18,470 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:00:18,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 15:00:19,258 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 15:00:19,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 03:00:19 BoogieIcfgContainer [2025-03-17 15:00:19,268 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 15:00:19,269 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 15:00:19,269 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 15:00:19,269 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 15:00:19,269 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:00:08" (3/4) ... [2025-03-17 15:00:19,271 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 15:00:19,275 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-03-17 15:00:19,277 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-17 15:00:19,277 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-17 15:00:19,277 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 15:00:19,277 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 15:00:19,337 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 15:00:19,338 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 15:00:19,338 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 15:00:19,338 INFO L158 Benchmark]: Toolchain (without parser) took 10965.97ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 112.8MB in the beginning and 95.0MB in the end (delta: 17.8MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. [2025-03-17 15:00:19,339 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:00:19,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.41ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 101.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 15:00:19,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.09ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 100.9MB in the end (delta: 914.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:00:19,339 INFO L158 Benchmark]: Boogie Preprocessor took 24.58ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 100.0MB in the end (delta: 933.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 15:00:19,340 INFO L158 Benchmark]: IcfgBuilder took 193.31ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 87.3MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 15:00:19,340 INFO L158 Benchmark]: TraceAbstraction took 10486.38ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 86.4MB in the beginning and 101.0MB in the end (delta: -14.6MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. [2025-03-17 15:00:19,341 INFO L158 Benchmark]: Witness Printer took 69.11ms. Allocated memory is still 218.1MB. Free memory was 101.0MB in the beginning and 95.0MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 15:00:19,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.41ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 101.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.09ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 100.9MB in the end (delta: 914.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.58ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 100.0MB in the end (delta: 933.8kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 193.31ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 87.3MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10486.38ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 86.4MB in the beginning and 101.0MB in the end (delta: -14.6MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. * Witness Printer took 69.11ms. Allocated memory is still 218.1MB. Free memory was 101.0MB in the beginning and 95.0MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 61 edges, 12 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 16, TraceHistogramMax: 40, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 358 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 284 mSDsluCounter, 2564 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1988 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2239 IncrementalHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 576 mSDtfsCounter, 2239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2200 GetRequests, 1964 SyntacticMatches, 7 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1837 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=13, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 237 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2497 NumberOfCodeBlocks, 2497 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 3309 ConstructedInterpolants, 0 QuantifiedInterpolants, 6477 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2442 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 34 InterpolantComputations, 9 PerfectInterpolantSequences, 21533/23131 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 16]: Location Invariant Derived location invariant: ((i == 0) || ((1 <= i) && (i <= 2147483646))) - InvariantResult [Line: 18]: Location Invariant Derived location invariant: (((((((((i == 1) && (j == 1)) || ((2 == j) && (2 == i))) || (((3 == j) && (i <= 2147483643)) && (j <= i))) || ((i == 0) && (j == 0))) || (((1 <= i) && (i <= 3)) && (j == 0))) || (((i <= 4) && (2 <= i)) && (j == 1))) || ((((i <= 2147483644) && (j <= 2147483643)) && (4 <= j)) && (j <= i))) || (((2 == j) && (3 <= i)) && (i <= 5))) RESULT: Ultimate proved your program to be correct! [2025-03-17 15:00:19,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE