./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:57:23,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:57:23,119 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-08 08:57:23,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:57:23,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:57:23,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:57:23,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:57:23,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:57:23,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:57:23,146 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:57:23,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:57:23,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:57:23,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:57:23,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:57:23,146 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:57:23,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:57:23,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 08:57:23,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:57:23,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:57:23,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 08:57:23,147 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:57:23,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 08:57:23,148 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 08:57:23,148 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:57:23,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 08:57:23,148 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:57:23,148 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:57:23,148 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:57:23,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:57:23,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:57:23,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:57:23,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:57:23,150 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 [2025-02-08 08:57:23,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:57:23,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:57:23,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:57:23,434 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:57:23,434 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:57:23,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2025-02-08 08:57:24,685 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/670da7de4/107b9e0dd6694f58ad4f813d2e9af7cb/FLAGd5281750d [2025-02-08 08:57:24,956 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:57:24,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2025-02-08 08:57:24,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/670da7de4/107b9e0dd6694f58ad4f813d2e9af7cb/FLAGd5281750d [2025-02-08 08:57:25,029 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/670da7de4/107b9e0dd6694f58ad4f813d2e9af7cb [2025-02-08 08:57:25,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:57:25,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:57:25,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:57:25,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:57:25,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:57:25,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282e6b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25, skipping insertion in model container [2025-02-08 08:57:25,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,057 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:57:25,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:57:25,173 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:57:25,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:57:25,198 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:57:25,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25 WrapperNode [2025-02-08 08:57:25,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:57:25,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:57:25,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:57:25,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:57:25,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,223 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2025-02-08 08:57:25,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:57:25,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:57:25,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:57:25,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:57:25,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,231 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,237 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 08:57:25,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,242 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:57:25,247 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:57:25,247 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:57:25,247 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:57:25,249 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (1/1) ... [2025-02-08 08:57:25,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:57:25,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:25,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:57:25,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:57:25,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:57:25,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:57:25,358 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:57:25,361 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:57:25,449 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-02-08 08:57:25,450 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:57:25,461 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:57:25,462 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:57:25,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:57:25 BoogieIcfgContainer [2025-02-08 08:57:25,462 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:57:25,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:57:25,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:57:25,468 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:57:25,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:57:25" (1/3) ... [2025-02-08 08:57:25,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3e9f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:57:25, skipping insertion in model container [2025-02-08 08:57:25,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:57:25" (2/3) ... [2025-02-08 08:57:25,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3e9f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:57:25, skipping insertion in model container [2025-02-08 08:57:25,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:57:25" (3/3) ... [2025-02-08 08:57:25,472 INFO L128 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c [2025-02-08 08:57:25,485 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:57:25,486 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c that has 1 procedures, 15 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-02-08 08:57:25,540 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:57:25,551 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;@6fa4cfb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:57:25,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 08:57:25,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 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) [2025-02-08 08:57:25,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-08 08:57:25,562 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:25,563 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 08:57:25,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:25,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:25,570 INFO L85 PathProgramCache]: Analyzing trace with hash 42880107, now seen corresponding path program 1 times [2025-02-08 08:57:25,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:25,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460184745] [2025-02-08 08:57:25,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:57:25,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:25,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 08:57:25,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 08:57:25,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:25,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:57:25,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:25,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460184745] [2025-02-08 08:57:25,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460184745] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:57:25,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:57:25,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:57:25,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337668434] [2025-02-08 08:57:25,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:57:25,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:57:25,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:25,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:57:25,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:57:25,786 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:25,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:25,838 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2025-02-08 08:57:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:57:25,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-02-08 08:57:25,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:25,844 INFO L225 Difference]: With dead ends: 16 [2025-02-08 08:57:25,845 INFO L226 Difference]: Without dead ends: 11 [2025-02-08 08:57:25,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:57:25,850 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 11 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:25,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 19 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:57:25,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2025-02-08 08:57:25,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2025-02-08 08:57:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.5) internal successors, (12), 10 states have internal predecessors, (12), 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) [2025-02-08 08:57:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2025-02-08 08:57:25,875 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2025-02-08 08:57:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:25,875 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2025-02-08 08:57:25,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2025-02-08 08:57:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-08 08:57:25,876 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:25,876 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 08:57:25,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:57:25,877 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:25,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash 42880134, now seen corresponding path program 1 times [2025-02-08 08:57:25,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:25,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504809188] [2025-02-08 08:57:25,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:57:25,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:25,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 08:57:25,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 08:57:25,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:25,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:57:25,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:25,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504809188] [2025-02-08 08:57:25,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504809188] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:57:25,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:57:25,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:57:25,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764545655] [2025-02-08 08:57:25,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:57:25,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:57:25,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:25,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:57:25,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:57:25,939 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:25,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:25,981 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2025-02-08 08:57:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:57:25,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-02-08 08:57:25,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:25,982 INFO L225 Difference]: With dead ends: 20 [2025-02-08 08:57:25,982 INFO L226 Difference]: Without dead ends: 11 [2025-02-08 08:57:25,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:57:25,984 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:25,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:57:25,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2025-02-08 08:57:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2025-02-08 08:57:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2025-02-08 08:57:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2025-02-08 08:57:25,988 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2025-02-08 08:57:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:25,989 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2025-02-08 08:57:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2025-02-08 08:57:25,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-08 08:57:25,989 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:25,989 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:57:25,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:57:25,990 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:25,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1329283292, now seen corresponding path program 1 times [2025-02-08 08:57:25,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:25,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586626563] [2025-02-08 08:57:25,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:57:25,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:25,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:57:26,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:57:26,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:26,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:57:26,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:26,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586626563] [2025-02-08 08:57:26,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586626563] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:57:26,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:57:26,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:57:26,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285023347] [2025-02-08 08:57:26,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:57:26,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:57:26,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:26,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:57:26,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:57:26,057 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2025-02-08 08:57:26,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:26,088 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2025-02-08 08:57:26,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:57:26,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2025-02-08 08:57:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:26,089 INFO L225 Difference]: With dead ends: 14 [2025-02-08 08:57:26,089 INFO L226 Difference]: Without dead ends: 13 [2025-02-08 08:57:26,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:57:26,090 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:26,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 9 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:57:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-02-08 08:57:26,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-02-08 08:57:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-02-08 08:57:26,095 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2025-02-08 08:57:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:26,095 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-02-08 08:57:26,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2025-02-08 08:57:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-02-08 08:57:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-08 08:57:26,096 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:26,096 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2025-02-08 08:57:26,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:57:26,096 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:26,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:26,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1080061933, now seen corresponding path program 1 times [2025-02-08 08:57:26,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:26,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043271311] [2025-02-08 08:57:26,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:57:26,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:26,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 08:57:26,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 08:57:26,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:26,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:57:26,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:26,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043271311] [2025-02-08 08:57:26,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043271311] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:26,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963475464] [2025-02-08 08:57:26,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:57:26,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:26,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:26,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:26,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 08:57:26,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 08:57:26,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 08:57:26,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:26,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:26,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 08:57:26,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:57:26,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:57:26,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963475464] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:26,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:26,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-02-08 08:57:26,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505750976] [2025-02-08 08:57:26,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:26,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:57:26,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:26,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:57:26,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:57:26,381 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:26,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:26,454 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2025-02-08 08:57:26,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:57:26,454 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-08 08:57:26,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:26,455 INFO L225 Difference]: With dead ends: 31 [2025-02-08 08:57:26,455 INFO L226 Difference]: Without dead ends: 20 [2025-02-08 08:57:26,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:57:26,456 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:26,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:57:26,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-02-08 08:57:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2025-02-08 08:57:26,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:26,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2025-02-08 08:57:26,461 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 9 [2025-02-08 08:57:26,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:26,463 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2025-02-08 08:57:26,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:26,463 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2025-02-08 08:57:26,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-08 08:57:26,463 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:26,463 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 08:57:26,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:57:26,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:26,664 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:26,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:26,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1392658079, now seen corresponding path program 1 times [2025-02-08 08:57:26,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:26,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838960601] [2025-02-08 08:57:26,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:57:26,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:26,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 08:57:26,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 08:57:26,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:26,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:57:26,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:26,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838960601] [2025-02-08 08:57:26,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838960601] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021435613] [2025-02-08 08:57:26,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:57:26,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:26,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:26,802 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:26,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 08:57:26,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 08:57:26,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 08:57:26,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:26,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:26,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:57:26,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:26,929 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:57:26,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:57:27,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021435613] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:27,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:27,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2025-02-08 08:57:27,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822285815] [2025-02-08 08:57:27,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:27,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:57:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:27,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:57:27,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:57:27,015 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 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) [2025-02-08 08:57:27,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:27,305 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2025-02-08 08:57:27,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-08 08:57:27,306 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 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 16 [2025-02-08 08:57:27,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:27,307 INFO L225 Difference]: With dead ends: 66 [2025-02-08 08:57:27,307 INFO L226 Difference]: Without dead ends: 64 [2025-02-08 08:57:27,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2025-02-08 08:57:27,308 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 33 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:27,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 15 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:57:27,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-02-08 08:57:27,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2025-02-08 08:57:27,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 58 states have internal predecessors, (70), 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) [2025-02-08 08:57:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2025-02-08 08:57:27,321 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 16 [2025-02-08 08:57:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:27,322 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2025-02-08 08:57:27,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 15 states have internal predecessors, (38), 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) [2025-02-08 08:57:27,323 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2025-02-08 08:57:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-08 08:57:27,323 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:27,323 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 08:57:27,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 08:57:27,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:27,524 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:27,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:27,525 INFO L85 PathProgramCache]: Analyzing trace with hash 865010367, now seen corresponding path program 2 times [2025-02-08 08:57:27,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:27,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153561600] [2025-02-08 08:57:27,525 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:57:27,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:27,531 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-08 08:57:27,543 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:57:27,544 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:57:27,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:27,663 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:57:27,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:27,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153561600] [2025-02-08 08:57:27,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153561600] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:27,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163510790] [2025-02-08 08:57:27,664 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:57:27,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:27,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:27,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:27,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 08:57:27,691 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-08 08:57:27,700 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:57:27,701 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:57:27,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:27,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 08:57:27,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:27,824 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 08:57:27,824 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 08:57:27,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163510790] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:27,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:27,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2025-02-08 08:57:27,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987661636] [2025-02-08 08:57:27,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:27,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 08:57:27,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:27,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 08:57:27,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2025-02-08 08:57:27,981 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 19 states, 18 states have (on average 2.888888888888889) internal successors, (52), 19 states have internal predecessors, (52), 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) [2025-02-08 08:57:28,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:28,627 INFO L93 Difference]: Finished difference Result 186 states and 245 transitions. [2025-02-08 08:57:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-02-08 08:57:28,628 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.888888888888889) internal successors, (52), 19 states have internal predecessors, (52), 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 22 [2025-02-08 08:57:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:28,630 INFO L225 Difference]: With dead ends: 186 [2025-02-08 08:57:28,630 INFO L226 Difference]: Without dead ends: 184 [2025-02-08 08:57:28,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2025-02-08 08:57:28,632 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 47 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:28,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 15 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 08:57:28,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2025-02-08 08:57:28,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 63. [2025-02-08 08:57:28,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 62 states have internal predecessors, (73), 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) [2025-02-08 08:57:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2025-02-08 08:57:28,651 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 22 [2025-02-08 08:57:28,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:28,652 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2025-02-08 08:57:28,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.888888888888889) internal successors, (52), 19 states have internal predecessors, (52), 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) [2025-02-08 08:57:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2025-02-08 08:57:28,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-08 08:57:28,652 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:28,653 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 1, 1, 1] [2025-02-08 08:57:28,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 08:57:28,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:28,853 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:28,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash -661403795, now seen corresponding path program 3 times [2025-02-08 08:57:28,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:28,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877339116] [2025-02-08 08:57:28,854 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:57:28,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:28,862 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 37 statements into 8 equivalence classes. [2025-02-08 08:57:28,871 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 34 of 37 statements. [2025-02-08 08:57:28,871 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-02-08 08:57:28,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 08:57:29,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:29,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877339116] [2025-02-08 08:57:29,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877339116] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:29,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121803707] [2025-02-08 08:57:29,016 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:57:29,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:29,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:29,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:29,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 08:57:29,052 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 37 statements into 8 equivalence classes. [2025-02-08 08:57:29,063 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 34 of 37 statements. [2025-02-08 08:57:29,063 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-02-08 08:57:29,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:29,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 08:57:29,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 08:57:29,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 08:57:29,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121803707] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:29,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:29,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2025-02-08 08:57:29,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479489512] [2025-02-08 08:57:29,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:29,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-08 08:57:29,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:29,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-08 08:57:29,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2025-02-08 08:57:29,313 INFO L87 Difference]: Start difference. First operand 63 states and 73 transitions. Second operand has 21 states, 20 states have (on average 4.0) internal successors, (80), 21 states have internal predecessors, (80), 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) [2025-02-08 08:57:30,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:30,080 INFO L93 Difference]: Finished difference Result 572 states and 695 transitions. [2025-02-08 08:57:30,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2025-02-08 08:57:30,081 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.0) internal successors, (80), 21 states have internal predecessors, (80), 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 37 [2025-02-08 08:57:30,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:30,087 INFO L225 Difference]: With dead ends: 572 [2025-02-08 08:57:30,087 INFO L226 Difference]: Without dead ends: 570 [2025-02-08 08:57:30,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=904, Invalid=2636, Unknown=0, NotChecked=0, Total=3540 [2025-02-08 08:57:30,092 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 47 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:30,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 20 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 08:57:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2025-02-08 08:57:30,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 347. [2025-02-08 08:57:30,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 345 states have (on average 1.2260869565217392) internal successors, (423), 346 states have internal predecessors, (423), 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) [2025-02-08 08:57:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 423 transitions. [2025-02-08 08:57:30,151 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 423 transitions. Word has length 37 [2025-02-08 08:57:30,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:30,153 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 423 transitions. [2025-02-08 08:57:30,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.0) internal successors, (80), 21 states have internal predecessors, (80), 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) [2025-02-08 08:57:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 423 transitions. [2025-02-08 08:57:30,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-02-08 08:57:30,154 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:30,154 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 5, 4, 4, 4, 1, 1, 1] [2025-02-08 08:57:30,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 08:57:30,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-08 08:57:30,355 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:30,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash 927215885, now seen corresponding path program 4 times [2025-02-08 08:57:30,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:30,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866280079] [2025-02-08 08:57:30,356 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:57:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:30,361 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 43 statements into 2 equivalence classes. [2025-02-08 08:57:30,368 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 08:57:30,369 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:57:30,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:30,616 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 15 proven. 127 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 08:57:30,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:30,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866280079] [2025-02-08 08:57:30,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866280079] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:30,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704389741] [2025-02-08 08:57:30,616 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:57:30,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:30,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:30,620 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:30,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 08:57:30,642 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 43 statements into 2 equivalence classes. [2025-02-08 08:57:30,654 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 08:57:30,655 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:57:30,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:30,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 08:57:30,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:30,905 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 92 proven. 47 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 08:57:30,905 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:31,166 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 65 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 08:57:31,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704389741] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:31,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:31,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 35 [2025-02-08 08:57:31,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415076507] [2025-02-08 08:57:31,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:31,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-02-08 08:57:31,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:31,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-02-08 08:57:31,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1024, Unknown=0, NotChecked=0, Total=1190 [2025-02-08 08:57:31,173 INFO L87 Difference]: Start difference. First operand 347 states and 423 transitions. Second operand has 35 states, 35 states have (on average 3.1714285714285713) internal successors, (111), 35 states have internal predecessors, (111), 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) [2025-02-08 08:57:32,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:32,618 INFO L93 Difference]: Finished difference Result 859 states and 1056 transitions. [2025-02-08 08:57:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2025-02-08 08:57:32,619 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.1714285714285713) internal successors, (111), 35 states have internal predecessors, (111), 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 43 [2025-02-08 08:57:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:32,622 INFO L225 Difference]: With dead ends: 859 [2025-02-08 08:57:32,622 INFO L226 Difference]: Without dead ends: 529 [2025-02-08 08:57:32,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1241, Invalid=4921, Unknown=0, NotChecked=0, Total=6162 [2025-02-08 08:57:32,625 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 145 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:32,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 5 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 08:57:32,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2025-02-08 08:57:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 409. [2025-02-08 08:57:32,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 407 states have (on average 1.1744471744471745) internal successors, (478), 408 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:57:32,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 478 transitions. [2025-02-08 08:57:32,685 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 478 transitions. Word has length 43 [2025-02-08 08:57:32,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:32,685 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 478 transitions. [2025-02-08 08:57:32,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.1714285714285713) internal successors, (111), 35 states have internal predecessors, (111), 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) [2025-02-08 08:57:32,685 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 478 transitions. [2025-02-08 08:57:32,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-08 08:57:32,687 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:32,687 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 5, 4, 4, 4, 1, 1, 1] [2025-02-08 08:57:32,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 08:57:32,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:32,888 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:32,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:32,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1712135635, now seen corresponding path program 5 times [2025-02-08 08:57:32,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:32,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33995435] [2025-02-08 08:57:32,888 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:57:32,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:32,894 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 49 statements into 10 equivalence classes. [2025-02-08 08:57:32,897 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 17 of 49 statements. [2025-02-08 08:57:32,897 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-02-08 08:57:32,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:32,975 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 131 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-08 08:57:32,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:32,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33995435] [2025-02-08 08:57:32,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33995435] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:32,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140556208] [2025-02-08 08:57:32,975 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:57:32,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:32,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:32,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:32,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 08:57:33,007 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 49 statements into 10 equivalence classes. [2025-02-08 08:57:33,012 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 17 of 49 statements. [2025-02-08 08:57:33,013 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-02-08 08:57:33,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:33,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 08:57:33,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:33,056 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 134 proven. 13 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-08 08:57:33,056 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:33,134 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 131 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-08 08:57:33,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140556208] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:33,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:33,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2025-02-08 08:57:33,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333704671] [2025-02-08 08:57:33,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:33,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 08:57:33,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:33,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 08:57:33,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-02-08 08:57:33,136 INFO L87 Difference]: Start difference. First operand 409 states and 478 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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) [2025-02-08 08:57:33,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:33,320 INFO L93 Difference]: Finished difference Result 746 states and 875 transitions. [2025-02-08 08:57:33,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:57:33,320 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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 49 [2025-02-08 08:57:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:33,322 INFO L225 Difference]: With dead ends: 746 [2025-02-08 08:57:33,322 INFO L226 Difference]: Without dead ends: 407 [2025-02-08 08:57:33,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2025-02-08 08:57:33,324 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:33,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:57:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2025-02-08 08:57:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 399. [2025-02-08 08:57:33,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 397 states have (on average 1.1133501259445844) internal successors, (442), 398 states have internal predecessors, (442), 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) [2025-02-08 08:57:33,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 442 transitions. [2025-02-08 08:57:33,373 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 442 transitions. Word has length 49 [2025-02-08 08:57:33,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:33,373 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 442 transitions. [2025-02-08 08:57:33,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 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) [2025-02-08 08:57:33,374 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 442 transitions. [2025-02-08 08:57:33,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-08 08:57:33,375 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:33,375 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 5, 4, 4, 4, 1, 1, 1] [2025-02-08 08:57:33,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 08:57:33,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-02-08 08:57:33,579 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:33,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:33,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1498287597, now seen corresponding path program 6 times [2025-02-08 08:57:33,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:33,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299932958] [2025-02-08 08:57:33,580 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:57:33,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:33,591 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 49 statements into 9 equivalence classes. [2025-02-08 08:57:33,607 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 42 of 49 statements. [2025-02-08 08:57:33,607 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-02-08 08:57:33,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-08 08:57:33,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:33,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299932958] [2025-02-08 08:57:33,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299932958] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:33,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882383233] [2025-02-08 08:57:33,759 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:57:33,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:33,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:33,761 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:33,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 08:57:33,785 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 49 statements into 9 equivalence classes. [2025-02-08 08:57:33,795 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 42 of 49 statements. [2025-02-08 08:57:33,795 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-02-08 08:57:33,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:33,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:57:33,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 40 proven. 146 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-08 08:57:33,945 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 4 proven. 182 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-08 08:57:34,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882383233] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:34,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:34,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2025-02-08 08:57:34,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860236333] [2025-02-08 08:57:34,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:34,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-08 08:57:34,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:34,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-08 08:57:34,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2025-02-08 08:57:34,132 INFO L87 Difference]: Start difference. First operand 399 states and 442 transitions. Second operand has 28 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 28 states have internal predecessors, (99), 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) [2025-02-08 08:57:35,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:35,328 INFO L93 Difference]: Finished difference Result 859 states and 1090 transitions. [2025-02-08 08:57:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2025-02-08 08:57:35,329 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 28 states have internal predecessors, (99), 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 49 [2025-02-08 08:57:35,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:35,332 INFO L225 Difference]: With dead ends: 859 [2025-02-08 08:57:35,332 INFO L226 Difference]: Without dead ends: 857 [2025-02-08 08:57:35,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2688 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1746, Invalid=6264, Unknown=0, NotChecked=0, Total=8010 [2025-02-08 08:57:35,334 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 24 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:35,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 33 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 08:57:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2025-02-08 08:57:35,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 738. [2025-02-08 08:57:35,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 736 states have (on average 1.1671195652173914) internal successors, (859), 737 states have internal predecessors, (859), 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) [2025-02-08 08:57:35,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 859 transitions. [2025-02-08 08:57:35,392 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 859 transitions. Word has length 49 [2025-02-08 08:57:35,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:35,392 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 859 transitions. [2025-02-08 08:57:35,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.6666666666666665) internal successors, (99), 28 states have internal predecessors, (99), 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) [2025-02-08 08:57:35,392 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 859 transitions. [2025-02-08 08:57:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-08 08:57:35,396 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:35,396 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 7, 6, 6, 6, 1, 1, 1] [2025-02-08 08:57:35,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 08:57:35,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:35,597 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:35,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:35,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1665863103, now seen corresponding path program 7 times [2025-02-08 08:57:35,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:35,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185836043] [2025-02-08 08:57:35,597 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:57:35,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:35,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-08 08:57:35,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-08 08:57:35,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:35,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 78 proven. 326 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-02-08 08:57:35,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:35,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185836043] [2025-02-08 08:57:35,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185836043] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:35,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764988579] [2025-02-08 08:57:35,836 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:57:35,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:35,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:35,838 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:35,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 08:57:35,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-08 08:57:35,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-08 08:57:35,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:57:35,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:35,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-08 08:57:35,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:36,213 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 103 proven. 301 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-02-08 08:57:36,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 78 proven. 326 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-02-08 08:57:36,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764988579] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:36,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:36,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 36 [2025-02-08 08:57:36,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553545932] [2025-02-08 08:57:36,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:36,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-02-08 08:57:36,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:36,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-02-08 08:57:36,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1071, Unknown=0, NotChecked=0, Total=1260 [2025-02-08 08:57:36,438 INFO L87 Difference]: Start difference. First operand 738 states and 859 transitions. Second operand has 36 states, 36 states have (on average 3.7777777777777777) internal successors, (136), 36 states have internal predecessors, (136), 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) [2025-02-08 08:57:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:37,833 INFO L93 Difference]: Finished difference Result 1294 states and 1533 transitions. [2025-02-08 08:57:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-02-08 08:57:37,834 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.7777777777777777) internal successors, (136), 36 states have internal predecessors, (136), 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 69 [2025-02-08 08:57:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:37,838 INFO L225 Difference]: With dead ends: 1294 [2025-02-08 08:57:37,838 INFO L226 Difference]: Without dead ends: 852 [2025-02-08 08:57:37,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 113 SyntacticMatches, 5 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1840 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1436, Invalid=5704, Unknown=0, NotChecked=0, Total=7140 [2025-02-08 08:57:37,841 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 85 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:37,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 7 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 08:57:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2025-02-08 08:57:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 840. [2025-02-08 08:57:37,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 838 states have (on average 1.1515513126491648) internal successors, (965), 839 states have internal predecessors, (965), 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) [2025-02-08 08:57:37,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 965 transitions. [2025-02-08 08:57:37,919 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 965 transitions. Word has length 69 [2025-02-08 08:57:37,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:37,919 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 965 transitions. [2025-02-08 08:57:37,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.7777777777777777) internal successors, (136), 36 states have internal predecessors, (136), 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) [2025-02-08 08:57:37,920 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 965 transitions. [2025-02-08 08:57:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-08 08:57:37,921 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:37,921 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 1, 1, 1] [2025-02-08 08:57:37,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 08:57:38,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:38,122 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:38,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:38,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1994855085, now seen corresponding path program 8 times [2025-02-08 08:57:38,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:38,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887695880] [2025-02-08 08:57:38,123 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:57:38,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:38,127 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-02-08 08:57:38,138 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 08:57:38,138 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:57:38,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 08:57:38,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:38,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887695880] [2025-02-08 08:57:38,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887695880] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:38,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78999918] [2025-02-08 08:57:38,373 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:57:38,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:38,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:38,375 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:38,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 08:57:38,398 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-02-08 08:57:38,416 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 08:57:38,416 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:57:38,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:38,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-08 08:57:38,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 08:57:38,552 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:38,895 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 08:57:38,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78999918] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:38,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:38,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 32 [2025-02-08 08:57:38,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035315393] [2025-02-08 08:57:38,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:38,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-02-08 08:57:38,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:38,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-02-08 08:57:38,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=726, Unknown=0, NotChecked=0, Total=1056 [2025-02-08 08:57:38,898 INFO L87 Difference]: Start difference. First operand 840 states and 965 transitions. Second operand has 33 states, 32 states have (on average 5.125) internal successors, (164), 33 states have internal predecessors, (164), 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) [2025-02-08 08:57:40,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:40,660 INFO L93 Difference]: Finished difference Result 2886 states and 3512 transitions. [2025-02-08 08:57:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2025-02-08 08:57:40,661 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.125) internal successors, (164), 33 states have internal predecessors, (164), 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 79 [2025-02-08 08:57:40,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:40,670 INFO L225 Difference]: With dead ends: 2886 [2025-02-08 08:57:40,670 INFO L226 Difference]: Without dead ends: 2884 [2025-02-08 08:57:40,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5686 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=4096, Invalid=11654, Unknown=0, NotChecked=0, Total=15750 [2025-02-08 08:57:40,675 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 86 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:40,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 34 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 08:57:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2025-02-08 08:57:40,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2739. [2025-02-08 08:57:40,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2737 states have (on average 1.1614906832298137) internal successors, (3179), 2738 states have internal predecessors, (3179), 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) [2025-02-08 08:57:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 3179 transitions. [2025-02-08 08:57:40,901 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 3179 transitions. Word has length 79 [2025-02-08 08:57:40,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:40,901 INFO L471 AbstractCegarLoop]: Abstraction has 2739 states and 3179 transitions. [2025-02-08 08:57:40,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.125) internal successors, (164), 33 states have internal predecessors, (164), 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) [2025-02-08 08:57:40,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 3179 transitions. [2025-02-08 08:57:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-08 08:57:40,904 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:40,904 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 16, 12, 11, 11, 11, 1, 1, 1] [2025-02-08 08:57:40,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 08:57:41,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:41,105 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:41,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:41,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1262029485, now seen corresponding path program 9 times [2025-02-08 08:57:41,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:41,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611055059] [2025-02-08 08:57:41,105 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:57:41,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:41,109 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 98 statements into 19 equivalence classes. [2025-02-08 08:57:41,119 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 66 of 98 statements. [2025-02-08 08:57:41,119 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-02-08 08:57:41,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:41,338 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 424 proven. 184 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2025-02-08 08:57:41,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:41,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611055059] [2025-02-08 08:57:41,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611055059] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:41,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466134529] [2025-02-08 08:57:41,339 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:57:41,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:41,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:41,342 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:41,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 08:57:41,370 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 98 statements into 19 equivalence classes. [2025-02-08 08:57:41,387 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 66 of 98 statements. [2025-02-08 08:57:41,387 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-02-08 08:57:41,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:41,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 08:57:41,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:41,521 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 424 proven. 184 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2025-02-08 08:57:41,521 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 424 proven. 184 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2025-02-08 08:57:41,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466134529] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:41,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:41,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2025-02-08 08:57:41,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846810153] [2025-02-08 08:57:41,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:41,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-08 08:57:41,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:41,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-08 08:57:41,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2025-02-08 08:57:41,849 INFO L87 Difference]: Start difference. First operand 2739 states and 3179 transitions. Second operand has 28 states, 27 states have (on average 3.5185185185185186) internal successors, (95), 28 states have internal predecessors, (95), 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) [2025-02-08 08:57:43,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:43,286 INFO L93 Difference]: Finished difference Result 3502 states and 4083 transitions. [2025-02-08 08:57:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2025-02-08 08:57:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.5185185185185186) internal successors, (95), 28 states have internal predecessors, (95), 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 98 [2025-02-08 08:57:43,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:43,301 INFO L225 Difference]: With dead ends: 3502 [2025-02-08 08:57:43,301 INFO L226 Difference]: Without dead ends: 3501 [2025-02-08 08:57:43,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1723 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1202, Invalid=4804, Unknown=0, NotChecked=0, Total=6006 [2025-02-08 08:57:43,305 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 101 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:43,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 08:57:43,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2025-02-08 08:57:43,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 2873. [2025-02-08 08:57:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2873 states, 2871 states have (on average 1.1337513061650992) internal successors, (3255), 2872 states have internal predecessors, (3255), 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) [2025-02-08 08:57:43,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 3255 transitions. [2025-02-08 08:57:43,616 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 3255 transitions. Word has length 98 [2025-02-08 08:57:43,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:43,616 INFO L471 AbstractCegarLoop]: Abstraction has 2873 states and 3255 transitions. [2025-02-08 08:57:43,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.5185185185185186) internal successors, (95), 28 states have internal predecessors, (95), 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) [2025-02-08 08:57:43,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 3255 transitions. [2025-02-08 08:57:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-08 08:57:43,622 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:43,622 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 25, 13, 12, 12, 12, 1, 1, 1] [2025-02-08 08:57:43,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 08:57:43,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-08 08:57:43,822 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:43,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:43,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1982772689, now seen corresponding path program 10 times [2025-02-08 08:57:43,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:43,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874816125] [2025-02-08 08:57:43,823 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:57:43,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:43,829 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 129 statements into 2 equivalence classes. [2025-02-08 08:57:43,854 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-02-08 08:57:43,854 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:57:43,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:44,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 734 proven. 142 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2025-02-08 08:57:44,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:44,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874816125] [2025-02-08 08:57:44,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874816125] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:44,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224712398] [2025-02-08 08:57:44,104 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:57:44,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:44,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:44,109 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:44,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 08:57:44,131 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 129 statements into 2 equivalence classes. [2025-02-08 08:57:44,158 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-02-08 08:57:44,158 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:57:44,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:44,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:57:44,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:44,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 854 proven. 251 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2025-02-08 08:57:44,479 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 851 proven. 254 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2025-02-08 08:57:44,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224712398] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:44,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:44,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 37 [2025-02-08 08:57:44,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851375976] [2025-02-08 08:57:44,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:44,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-02-08 08:57:44,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:44,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-02-08 08:57:44,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1198, Unknown=0, NotChecked=0, Total=1332 [2025-02-08 08:57:44,733 INFO L87 Difference]: Start difference. First operand 2873 states and 3255 transitions. Second operand has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 37 states have internal predecessors, (140), 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) [2025-02-08 08:57:48,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:57:48,803 INFO L93 Difference]: Finished difference Result 8240 states and 9625 transitions. [2025-02-08 08:57:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2025-02-08 08:57:48,804 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 37 states have internal predecessors, (140), 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 129 [2025-02-08 08:57:48,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:57:48,820 INFO L225 Difference]: With dead ends: 8240 [2025-02-08 08:57:48,821 INFO L226 Difference]: Without dead ends: 6708 [2025-02-08 08:57:48,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 233 SyntacticMatches, 4 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7574 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3174, Invalid=19778, Unknown=0, NotChecked=0, Total=22952 [2025-02-08 08:57:48,826 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 389 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:57:48,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 7 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-08 08:57:48,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6708 states. [2025-02-08 08:57:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6708 to 5935. [2025-02-08 08:57:49,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5933 states have (on average 1.1248946570032023) internal successors, (6674), 5934 states have internal predecessors, (6674), 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) [2025-02-08 08:57:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 6674 transitions. [2025-02-08 08:57:49,545 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 6674 transitions. Word has length 129 [2025-02-08 08:57:49,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:57:49,546 INFO L471 AbstractCegarLoop]: Abstraction has 5935 states and 6674 transitions. [2025-02-08 08:57:49,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 37 states have internal predecessors, (140), 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) [2025-02-08 08:57:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 6674 transitions. [2025-02-08 08:57:49,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-08 08:57:49,551 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:57:49,551 INFO L218 NwaCegarLoop]: trace histogram [29, 29, 28, 14, 13, 13, 13, 1, 1, 1] [2025-02-08 08:57:49,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 08:57:49,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-08 08:57:49,752 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:57:49,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:57:49,752 INFO L85 PathProgramCache]: Analyzing trace with hash 952064999, now seen corresponding path program 11 times [2025-02-08 08:57:49,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:57:49,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480339322] [2025-02-08 08:57:49,752 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:57:49,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:57:49,758 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 142 statements into 24 equivalence classes. [2025-02-08 08:57:49,784 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) and asserted 142 of 142 statements. [2025-02-08 08:57:49,784 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2025-02-08 08:57:49,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 472 proven. 1356 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-02-08 08:57:50,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:57:50,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480339322] [2025-02-08 08:57:50,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480339322] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:57:50,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479812195] [2025-02-08 08:57:50,166 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:57:50,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:57:50,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:57:50,169 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:57:50,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 08:57:50,199 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 142 statements into 24 equivalence classes. [2025-02-08 08:57:50,235 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) and asserted 142 of 142 statements. [2025-02-08 08:57:50,236 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2025-02-08 08:57:50,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:57:50,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-08 08:57:50,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:57:50,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 1141 proven. 553 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2025-02-08 08:57:50,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:57:51,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 1132 proven. 562 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2025-02-08 08:57:51,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479812195] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:57:51,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:57:51,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 52 [2025-02-08 08:57:51,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353784851] [2025-02-08 08:57:51,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:57:51,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2025-02-08 08:57:51,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:57:51,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2025-02-08 08:57:51,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2336, Unknown=0, NotChecked=0, Total=2652 [2025-02-08 08:57:51,353 INFO L87 Difference]: Start difference. First operand 5935 states and 6674 transitions. Second operand has 52 states, 52 states have (on average 4.865384615384615) internal successors, (253), 52 states have internal predecessors, (253), 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) [2025-02-08 08:58:04,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:58:04,818 INFO L93 Difference]: Finished difference Result 9038 states and 10414 transitions. [2025-02-08 08:58:04,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 396 states. [2025-02-08 08:58:04,818 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.865384615384615) internal successors, (253), 52 states have internal predecessors, (253), 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 142 [2025-02-08 08:58:04,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:58:04,839 INFO L225 Difference]: With dead ends: 9038 [2025-02-08 08:58:04,839 INFO L226 Difference]: Without dead ends: 6660 [2025-02-08 08:58:04,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 425 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77152 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=19340, Invalid=162562, Unknown=0, NotChecked=0, Total=181902 [2025-02-08 08:58:04,854 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 887 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:58:04,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 9 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-08 08:58:04,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6660 states. [2025-02-08 08:58:05,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6660 to 5801. [2025-02-08 08:58:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5801 states, 5799 states have (on average 1.1238144507673737) internal successors, (6517), 5800 states have internal predecessors, (6517), 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) [2025-02-08 08:58:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 6517 transitions. [2025-02-08 08:58:05,404 INFO L78 Accepts]: Start accepts. Automaton has 5801 states and 6517 transitions. Word has length 142 [2025-02-08 08:58:05,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:58:05,404 INFO L471 AbstractCegarLoop]: Abstraction has 5801 states and 6517 transitions. [2025-02-08 08:58:05,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.865384615384615) internal successors, (253), 52 states have internal predecessors, (253), 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) [2025-02-08 08:58:05,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5801 states and 6517 transitions. [2025-02-08 08:58:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-02-08 08:58:05,410 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:58:05,410 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 27, 17, 16, 16, 16, 1, 1, 1] [2025-02-08 08:58:05,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 08:58:05,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:58:05,611 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:58:05,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:58:05,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2135775631, now seen corresponding path program 12 times [2025-02-08 08:58:05,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:58:05,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333730796] [2025-02-08 08:58:05,612 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:58:05,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:58:05,618 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 151 statements into 29 equivalence classes. [2025-02-08 08:58:05,644 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) and asserted 144 of 151 statements. [2025-02-08 08:58:05,644 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2025-02-08 08:58:05,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:58:06,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 838 proven. 1048 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-02-08 08:58:06,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:58:06,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333730796] [2025-02-08 08:58:06,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333730796] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:58:06,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535373027] [2025-02-08 08:58:06,078 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:58:06,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:58:06,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:58:06,080 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:58:06,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 08:58:06,115 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 151 statements into 29 equivalence classes. [2025-02-08 08:58:06,148 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) and asserted 144 of 151 statements. [2025-02-08 08:58:06,148 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2025-02-08 08:58:06,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:58:06,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-08 08:58:06,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:58:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 636 proven. 1333 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-02-08 08:58:06,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:58:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 636 proven. 1333 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-02-08 08:58:07,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535373027] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:58:07,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:58:07,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 20] total 43 [2025-02-08 08:58:07,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542684747] [2025-02-08 08:58:07,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:58:07,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2025-02-08 08:58:07,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:58:07,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2025-02-08 08:58:07,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=1417, Unknown=0, NotChecked=0, Total=1892 [2025-02-08 08:58:07,155 INFO L87 Difference]: Start difference. First operand 5801 states and 6517 transitions. Second operand has 44 states, 43 states have (on average 4.813953488372093) internal successors, (207), 44 states have internal predecessors, (207), 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) [2025-02-08 08:58:12,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:58:12,540 INFO L93 Difference]: Finished difference Result 9864 states and 11487 transitions. [2025-02-08 08:58:12,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2025-02-08 08:58:12,541 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.813953488372093) internal successors, (207), 44 states have internal predecessors, (207), 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 151 [2025-02-08 08:58:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:58:12,574 INFO L225 Difference]: With dead ends: 9864 [2025-02-08 08:58:12,574 INFO L226 Difference]: Without dead ends: 9863 [2025-02-08 08:58:12,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13574 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=7658, Invalid=30562, Unknown=0, NotChecked=0, Total=38220 [2025-02-08 08:58:12,580 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 249 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:58:12,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 2 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 08:58:12,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2025-02-08 08:58:13,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 7436. [2025-02-08 08:58:13,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 7434 states have (on average 1.117567931127253) internal successors, (8308), 7435 states have internal predecessors, (8308), 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) [2025-02-08 08:58:13,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 8308 transitions. [2025-02-08 08:58:13,627 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 8308 transitions. Word has length 151 [2025-02-08 08:58:13,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:58:13,627 INFO L471 AbstractCegarLoop]: Abstraction has 7436 states and 8308 transitions. [2025-02-08 08:58:13,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.813953488372093) internal successors, (207), 44 states have internal predecessors, (207), 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) [2025-02-08 08:58:13,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 8308 transitions. [2025-02-08 08:58:13,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-02-08 08:58:13,633 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:58:13,633 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 23, 23, 22, 22, 22, 1, 1, 1] [2025-02-08 08:58:13,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 08:58:13,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:58:13,834 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:58:13,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:58:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1464564013, now seen corresponding path program 13 times [2025-02-08 08:58:13,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:58:13,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161144537] [2025-02-08 08:58:13,836 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:58:13,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:58:13,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-08 08:58:13,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-08 08:58:13,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:58:13,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:58:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 08:58:14,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:58:14,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161144537] [2025-02-08 08:58:14,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161144537] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:58:14,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849694386] [2025-02-08 08:58:14,430 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:58:14,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:58:14,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:58:14,433 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:58:14,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 08:58:14,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-08 08:58:14,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-08 08:58:14,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:58:14,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:58:14,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-02-08 08:58:14,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:58:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 08:58:14,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:58:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 08:58:15,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849694386] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:58:15,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:58:15,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 56 [2025-02-08 08:58:15,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113151807] [2025-02-08 08:58:15,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:58:15,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2025-02-08 08:58:15,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:58:15,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2025-02-08 08:58:15,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1206, Invalid=1986, Unknown=0, NotChecked=0, Total=3192 [2025-02-08 08:58:15,445 INFO L87 Difference]: Start difference. First operand 7436 states and 8308 transitions. Second operand has 57 states, 56 states have (on average 5.928571428571429) internal successors, (332), 57 states have internal predecessors, (332), 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) [2025-02-08 08:58:23,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:58:23,359 INFO L93 Difference]: Finished difference Result 32676 states and 39765 transitions. [2025-02-08 08:58:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2025-02-08 08:58:23,360 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 5.928571428571429) internal successors, (332), 57 states have internal predecessors, (332), 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 163 [2025-02-08 08:58:23,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:58:23,448 INFO L225 Difference]: With dead ends: 32676 [2025-02-08 08:58:23,449 INFO L226 Difference]: Without dead ends: 32674 [2025-02-08 08:58:23,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25792 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=17392, Invalid=48914, Unknown=0, NotChecked=0, Total=66306 [2025-02-08 08:58:23,465 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 134 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-08 08:58:23,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 56 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-08 08:58:23,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32674 states. [2025-02-08 08:58:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32674 to 31785. [2025-02-08 08:58:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31785 states, 31783 states have (on average 1.1261366139130982) internal successors, (35792), 31784 states have internal predecessors, (35792), 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) [2025-02-08 08:58:26,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31785 states to 31785 states and 35792 transitions. [2025-02-08 08:58:26,760 INFO L78 Accepts]: Start accepts. Automaton has 31785 states and 35792 transitions. Word has length 163 [2025-02-08 08:58:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:58:26,761 INFO L471 AbstractCegarLoop]: Abstraction has 31785 states and 35792 transitions. [2025-02-08 08:58:26,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 5.928571428571429) internal successors, (332), 57 states have internal predecessors, (332), 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) [2025-02-08 08:58:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 31785 states and 35792 transitions. [2025-02-08 08:58:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-08 08:58:26,798 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:58:26,798 INFO L218 NwaCegarLoop]: trace histogram [60, 60, 59, 33, 32, 32, 32, 1, 1, 1] [2025-02-08 08:58:26,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 08:58:26,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-08 08:58:26,999 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:58:26,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:58:26,999 INFO L85 PathProgramCache]: Analyzing trace with hash 239044959, now seen corresponding path program 14 times [2025-02-08 08:58:27,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:58:27,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012206512] [2025-02-08 08:58:27,000 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:58:27,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:58:27,011 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 311 statements into 2 equivalence classes. [2025-02-08 08:58:27,085 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 311 of 311 statements. [2025-02-08 08:58:27,085 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:58:27,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:58:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9246 backedges. 0 proven. 3359 refuted. 0 times theorem prover too weak. 5887 trivial. 0 not checked. [2025-02-08 08:58:27,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:58:27,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012206512] [2025-02-08 08:58:27,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012206512] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:58:27,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978271593] [2025-02-08 08:58:27,556 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:58:27,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:58:27,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:58:27,559 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:58:27,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 08:58:27,604 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 311 statements into 2 equivalence classes. [2025-02-08 08:58:27,670 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 311 of 311 statements. [2025-02-08 08:58:27,671 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:58:27,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:58:27,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-08 08:58:27,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:58:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9246 backedges. 4918 proven. 1069 refuted. 0 times theorem prover too weak. 3259 trivial. 0 not checked. [2025-02-08 08:58:28,209 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:58:28,617 INFO L134 CoverageAnalysis]: Checked inductivity of 9246 backedges. 4907 proven. 1080 refuted. 0 times theorem prover too weak. 3259 trivial. 0 not checked. [2025-02-08 08:58:28,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978271593] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:58:28,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:58:28,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23, 23] total 42 [2025-02-08 08:58:28,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349084110] [2025-02-08 08:58:28,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:58:28,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-02-08 08:58:28,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:58:28,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-02-08 08:58:28,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1453, Unknown=0, NotChecked=0, Total=1722 [2025-02-08 08:58:28,619 INFO L87 Difference]: Start difference. First operand 31785 states and 35792 transitions. Second operand has 42 states, 42 states have (on average 4.785714285714286) internal successors, (201), 42 states have internal predecessors, (201), 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) [2025-02-08 08:58:37,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:58:37,982 INFO L93 Difference]: Finished difference Result 33661 states and 38002 transitions. [2025-02-08 08:58:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 268 states. [2025-02-08 08:58:37,982 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.785714285714286) internal successors, (201), 42 states have internal predecessors, (201), 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 311 [2025-02-08 08:58:37,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:58:38,050 INFO L225 Difference]: With dead ends: 33661 [2025-02-08 08:58:38,051 INFO L226 Difference]: Without dead ends: 31694 [2025-02-08 08:58:38,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 879 GetRequests, 587 SyntacticMatches, 8 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32517 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=11381, Invalid=70129, Unknown=0, NotChecked=0, Total=81510 [2025-02-08 08:58:38,068 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 186 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:58:38,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 15 Invalid, 2441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-08 08:58:38,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31694 states. [2025-02-08 08:58:40,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31694 to 31214. [2025-02-08 08:58:40,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31214 states, 31212 states have (on average 1.1251441753171858) internal successors, (35118), 31213 states have internal predecessors, (35118), 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) [2025-02-08 08:58:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31214 states to 31214 states and 35118 transitions. [2025-02-08 08:58:40,953 INFO L78 Accepts]: Start accepts. Automaton has 31214 states and 35118 transitions. Word has length 311 [2025-02-08 08:58:40,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:58:40,954 INFO L471 AbstractCegarLoop]: Abstraction has 31214 states and 35118 transitions. [2025-02-08 08:58:40,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.785714285714286) internal successors, (201), 42 states have internal predecessors, (201), 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) [2025-02-08 08:58:40,954 INFO L276 IsEmpty]: Start isEmpty. Operand 31214 states and 35118 transitions. [2025-02-08 08:58:40,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2025-02-08 08:58:40,985 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:58:40,986 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 60, 34, 33, 33, 33, 1, 1, 1] [2025-02-08 08:58:40,995 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-08 08:58:41,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 08:58:41,186 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 08:58:41,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:58:41,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1186936977, now seen corresponding path program 15 times [2025-02-08 08:58:41,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:58:41,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612042872] [2025-02-08 08:58:41,187 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:58:41,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:58:41,196 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 318 statements into 60 equivalence classes. [2025-02-08 08:58:41,245 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) and asserted 309 of 318 statements. [2025-02-08 08:58:41,245 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2025-02-08 08:58:41,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:58:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 9648 backedges. 0 proven. 9515 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-02-08 08:58:42,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:58:42,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612042872] [2025-02-08 08:58:42,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612042872] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:58:42,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850746125] [2025-02-08 08:58:42,464 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:58:42,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:58:42,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:58:42,466 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:58:42,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-08 08:58:42,502 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 318 statements into 60 equivalence classes. [2025-02-08 08:58:42,578 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) and asserted 309 of 318 statements. [2025-02-08 08:58:42,579 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2025-02-08 08:58:42,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:58:42,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-02-08 08:58:42,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:58:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 9648 backedges. 0 proven. 9515 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-02-08 08:58:42,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:58:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9648 backedges. 0 proven. 9515 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-02-08 08:58:44,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850746125] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:58:44,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:58:44,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 81 [2025-02-08 08:58:44,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576320140] [2025-02-08 08:58:44,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:58:44,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2025-02-08 08:58:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:58:44,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2025-02-08 08:58:44,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2561, Invalid=4081, Unknown=0, NotChecked=0, Total=6642 [2025-02-08 08:58:44,569 INFO L87 Difference]: Start difference. First operand 31214 states and 35118 transitions. Second operand has 82 states, 81 states have (on average 6.111111111111111) internal successors, (495), 82 states have internal predecessors, (495), 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)