./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/rec_counter1.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-numeric/rec_counter1.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 de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 09:00:47,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 09:00:47,131 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-08 09:00:47,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 09:00:47,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 09:00:47,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 09:00:47,150 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 09:00:47,150 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 09:00:47,150 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 09:00:47,151 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 09:00:47,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 09:00:47,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 09:00:47,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 09:00:47,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 09:00:47,151 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 09:00:47,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 09:00:47,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 09:00:47,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 09:00:47,152 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 09:00:47,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:00:47,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 09:00:47,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 09:00:47,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 09:00:47,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 09:00:47,154 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 -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2025-02-08 09:00:47,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 09:00:47,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 09:00:47,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 09:00:47,399 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 09:00:47,399 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 09:00:47,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/rec_counter1.c [2025-02-08 09:00:48,568 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/357d9f3e9/e5c711fc912341568788704114c47387/FLAG163b8d5d3 [2025-02-08 09:00:48,856 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 09:00:48,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter1.c [2025-02-08 09:00:48,862 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/357d9f3e9/e5c711fc912341568788704114c47387/FLAG163b8d5d3 [2025-02-08 09:00:48,878 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/357d9f3e9/e5c711fc912341568788704114c47387 [2025-02-08 09:00:48,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 09:00:48,883 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 09:00:48,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 09:00:48,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 09:00:48,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 09:00:48,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:00:48" (1/1) ... [2025-02-08 09:00:48,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596302b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:48, skipping insertion in model container [2025-02-08 09:00:48,893 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:00:48" (1/1) ... [2025-02-08 09:00:48,902 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 09:00:48,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:00:49,000 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 09:00:49,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:00:49,018 INFO L204 MainTranslator]: Completed translation [2025-02-08 09:00:49,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49 WrapperNode [2025-02-08 09:00:49,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 09:00:49,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 09:00:49,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 09:00:49,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 09:00:49,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,035 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2025-02-08 09:00:49,037 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 09:00:49,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 09:00:49,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 09:00:49,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 09:00:49,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,049 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 09:00:49,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,050 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 09:00:49,056 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 09:00:49,057 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 09:00:49,057 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 09:00:49,057 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (1/1) ... [2025-02-08 09:00:49,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:00:49,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:49,089 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 09:00:49,097 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 09:00:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2025-02-08 09:00:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2025-02-08 09:00:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 09:00:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 09:00:49,150 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 09:00:49,152 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 09:00:49,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7: havoc ~res~0, ~rescopy~0; [2025-02-08 09:00:49,264 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-02-08 09:00:49,265 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 09:00:49,271 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 09:00:49,271 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 09:00:49,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:00:49 BoogieIcfgContainer [2025-02-08 09:00:49,272 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 09:00:49,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 09:00:49,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 09:00:49,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 09:00:49,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 09:00:48" (1/3) ... [2025-02-08 09:00:49,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2b1273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:00:49, skipping insertion in model container [2025-02-08 09:00:49,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:00:49" (2/3) ... [2025-02-08 09:00:49,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2b1273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:00:49, skipping insertion in model container [2025-02-08 09:00:49,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:00:49" (3/3) ... [2025-02-08 09:00:49,280 INFO L128 eAbstractionObserver]: Analyzing ICFG rec_counter1.c [2025-02-08 09:00:49,291 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 09:00:49,293 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rec_counter1.c that has 2 procedures, 26 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2025-02-08 09:00:49,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 09:00:49,340 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;@3ab2d474, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 09:00:49,340 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-08 09:00:49,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:00:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-08 09:00:49,347 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:49,348 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 09:00:49,348 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:49,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:49,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1655862196, now seen corresponding path program 1 times [2025-02-08 09:00:49,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:49,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509546674] [2025-02-08 09:00:49,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:49,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:49,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 09:00:49,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 09:00:49,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:49,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:49,498 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 09:00:49,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:49,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509546674] [2025-02-08 09:00:49,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509546674] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:00:49,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:00:49,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 09:00:49,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982301296] [2025-02-08 09:00:49,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:00:49,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:00:49,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:49,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:00:49,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:00:49,521 INFO L87 Difference]: Start difference. First operand has 26 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:00:49,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:49,580 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2025-02-08 09:00:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:00:49,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-08 09:00:49,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:49,585 INFO L225 Difference]: With dead ends: 50 [2025-02-08 09:00:49,585 INFO L226 Difference]: Without dead ends: 38 [2025-02-08 09:00:49,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:00:49,588 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:49,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 84 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:49,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-02-08 09:00:49,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2025-02-08 09:00:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.565217391304348) internal successors, (36), 28 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:00:49,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2025-02-08 09:00:49,610 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 6 [2025-02-08 09:00:49,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:49,611 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2025-02-08 09:00:49,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:00:49,611 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2025-02-08 09:00:49,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 09:00:49,611 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:49,611 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:00:49,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 09:00:49,612 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:49,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:49,612 INFO L85 PathProgramCache]: Analyzing trace with hash -207879492, now seen corresponding path program 1 times [2025-02-08 09:00:49,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:49,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114465083] [2025-02-08 09:00:49,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:49,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:49,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 09:00:49,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 09:00:49,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:49,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:49,656 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 09:00:49,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:49,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114465083] [2025-02-08 09:00:49,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114465083] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:00:49,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:00:49,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 09:00:49,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578319640] [2025-02-08 09:00:49,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:00:49,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:00:49,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:49,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:00:49,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:00:49,659 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:00:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:49,689 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2025-02-08 09:00:49,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:00:49,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 09:00:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:49,691 INFO L225 Difference]: With dead ends: 35 [2025-02-08 09:00:49,691 INFO L226 Difference]: Without dead ends: 34 [2025-02-08 09:00:49,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:00:49,692 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:49,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 34 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-02-08 09:00:49,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2025-02-08 09:00:49,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:00:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2025-02-08 09:00:49,698 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2025-02-08 09:00:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:49,698 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2025-02-08 09:00:49,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:00:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2025-02-08 09:00:49,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-08 09:00:49,699 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:49,699 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:00:49,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 09:00:49,699 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:49,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:49,699 INFO L85 PathProgramCache]: Analyzing trace with hash -333237967, now seen corresponding path program 1 times [2025-02-08 09:00:49,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:49,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504358128] [2025-02-08 09:00:49,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:49,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:49,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 09:00:49,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 09:00:49,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:49,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:00:49,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:49,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504358128] [2025-02-08 09:00:49,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504358128] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:49,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753870609] [2025-02-08 09:00:49,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:49,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:49,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:49,765 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 09:00:49,770 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 09:00:49,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 09:00:49,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 09:00:49,793 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:49,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:49,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 09:00:49,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:00:49,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:00:49,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753870609] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:49,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:49,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-02-08 09:00:49,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994582117] [2025-02-08 09:00:49,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:49,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 09:00:49,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:49,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 09:00:49,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-02-08 09:00:49,892 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:00:49,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:49,946 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2025-02-08 09:00:49,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 09:00:49,947 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-02-08 09:00:49,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:49,947 INFO L225 Difference]: With dead ends: 38 [2025-02-08 09:00:49,948 INFO L226 Difference]: Without dead ends: 37 [2025-02-08 09:00:49,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2025-02-08 09:00:49,948 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 142 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:49,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 54 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:49,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-02-08 09:00:49,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2025-02-08 09:00:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.434782608695652) internal successors, (33), 26 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:00:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2025-02-08 09:00:49,953 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 11 [2025-02-08 09:00:49,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:49,953 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2025-02-08 09:00:49,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:00:49,953 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2025-02-08 09:00:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 09:00:49,954 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:49,954 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:00:49,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 09:00:50,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:50,155 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:50,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:50,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1185572588, now seen corresponding path program 1 times [2025-02-08 09:00:50,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:50,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063694482] [2025-02-08 09:00:50,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:50,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:50,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 09:00:50,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 09:00:50,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:50,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 09:00:50,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:50,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063694482] [2025-02-08 09:00:50,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063694482] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:00:50,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:00:50,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 09:00:50,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800857281] [2025-02-08 09:00:50,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:00:50,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 09:00:50,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:50,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 09:00:50,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:00:50,218 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:50,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:50,225 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2025-02-08 09:00:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 09:00:50,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-02-08 09:00:50,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:50,227 INFO L225 Difference]: With dead ends: 31 [2025-02-08 09:00:50,228 INFO L226 Difference]: Without dead ends: 30 [2025-02-08 09:00:50,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:00:50,228 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:50,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:50,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-02-08 09:00:50,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-02-08 09:00:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 25 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:00:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2025-02-08 09:00:50,232 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 15 [2025-02-08 09:00:50,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:50,232 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2025-02-08 09:00:50,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:50,232 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2025-02-08 09:00:50,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-08 09:00:50,232 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:50,233 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:00:50,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 09:00:50,233 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:50,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:50,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1185572561, now seen corresponding path program 1 times [2025-02-08 09:00:50,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:50,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268474870] [2025-02-08 09:00:50,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:50,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:50,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 09:00:50,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 09:00:50,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:50,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 09:00:50,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:50,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268474870] [2025-02-08 09:00:50,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268474870] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:00:50,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:00:50,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 09:00:50,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454201683] [2025-02-08 09:00:50,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:00:50,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 09:00:50,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:50,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 09:00:50,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:00:50,284 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:50,298 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2025-02-08 09:00:50,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 09:00:50,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-02-08 09:00:50,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:50,300 INFO L225 Difference]: With dead ends: 30 [2025-02-08 09:00:50,300 INFO L226 Difference]: Without dead ends: 29 [2025-02-08 09:00:50,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:00:50,301 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:50,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:50,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-02-08 09:00:50,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2025-02-08 09:00:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:00:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2025-02-08 09:00:50,310 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 15 [2025-02-08 09:00:50,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:50,310 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2025-02-08 09:00:50,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:50,310 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2025-02-08 09:00:50,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-08 09:00:50,311 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:50,311 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:00:50,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 09:00:50,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:50,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1901955412, now seen corresponding path program 1 times [2025-02-08 09:00:50,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:50,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870113689] [2025-02-08 09:00:50,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:50,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:50,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 09:00:50,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 09:00:50,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:50,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 09:00:50,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:50,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870113689] [2025-02-08 09:00:50,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870113689] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:00:50,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:00:50,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 09:00:50,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968865286] [2025-02-08 09:00:50,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:00:50,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 09:00:50,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:50,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 09:00:50,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:00:50,378 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:50,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:50,395 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2025-02-08 09:00:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 09:00:50,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-02-08 09:00:50,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:50,399 INFO L225 Difference]: With dead ends: 51 [2025-02-08 09:00:50,399 INFO L226 Difference]: Without dead ends: 35 [2025-02-08 09:00:50,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 09:00:50,400 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:50,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:50,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-02-08 09:00:50,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-02-08 09:00:50,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 09:00:50,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2025-02-08 09:00:50,410 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 16 [2025-02-08 09:00:50,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:50,410 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2025-02-08 09:00:50,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:50,410 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2025-02-08 09:00:50,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-08 09:00:50,411 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:50,411 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:00:50,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 09:00:50,411 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:50,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:50,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1901956245, now seen corresponding path program 1 times [2025-02-08 09:00:50,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:50,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505802248] [2025-02-08 09:00:50,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:50,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:50,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 09:00:50,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 09:00:50,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:50,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 09:00:50,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:50,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505802248] [2025-02-08 09:00:50,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505802248] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:00:50,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:00:50,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 09:00:50,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747333053] [2025-02-08 09:00:50,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:00:50,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 09:00:50,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:50,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 09:00:50,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:00:50,460 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:50,475 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2025-02-08 09:00:50,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 09:00:50,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-02-08 09:00:50,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:50,475 INFO L225 Difference]: With dead ends: 42 [2025-02-08 09:00:50,475 INFO L226 Difference]: Without dead ends: 37 [2025-02-08 09:00:50,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 09:00:50,476 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:50,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:50,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-02-08 09:00:50,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-02-08 09:00:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 31 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 09:00:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2025-02-08 09:00:50,480 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 16 [2025-02-08 09:00:50,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:50,480 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2025-02-08 09:00:50,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:50,480 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2025-02-08 09:00:50,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-02-08 09:00:50,481 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:50,481 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:00:50,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 09:00:50,481 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:50,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:50,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1311121943, now seen corresponding path program 1 times [2025-02-08 09:00:50,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:50,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518898883] [2025-02-08 09:00:50,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:50,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:50,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 09:00:50,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 09:00:50,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:50,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 09:00:50,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:50,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518898883] [2025-02-08 09:00:50,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518898883] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:50,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625528555] [2025-02-08 09:00:50,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:50,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:50,608 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 09:00:50,609 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 09:00:50,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 09:00:50,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 09:00:50,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:50,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:50,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 09:00:50,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 09:00:50,710 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 09:00:50,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625528555] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:00:50,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 09:00:50,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2025-02-08 09:00:50,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734372728] [2025-02-08 09:00:50,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:00:50,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 09:00:50,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:50,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 09:00:50,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 09:00:50,711 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:00:50,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:50,726 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2025-02-08 09:00:50,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 09:00:50,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2025-02-08 09:00:50,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:50,727 INFO L225 Difference]: With dead ends: 37 [2025-02-08 09:00:50,728 INFO L226 Difference]: Without dead ends: 36 [2025-02-08 09:00:50,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 09:00:50,728 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:50,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:50,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-02-08 09:00:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-02-08 09:00:50,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 09:00:50,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2025-02-08 09:00:50,733 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 27 [2025-02-08 09:00:50,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:50,733 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2025-02-08 09:00:50,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:00:50,733 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2025-02-08 09:00:50,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-08 09:00:50,734 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:50,734 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:00:50,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 09:00:50,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:50,935 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:50,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:50,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1201194996, now seen corresponding path program 1 times [2025-02-08 09:00:50,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:50,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122550880] [2025-02-08 09:00:50,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:50,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:50,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 09:00:50,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 09:00:50,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:50,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:51,031 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 09:00:51,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:51,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122550880] [2025-02-08 09:00:51,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122550880] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:51,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252637854] [2025-02-08 09:00:51,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:00:51,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:51,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:51,033 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 09:00:51,035 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 09:00:51,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 09:00:51,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 09:00:51,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:51,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:51,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 09:00:51,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 09:00:51,113 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:51,256 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 09:00:51,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252637854] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:51,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:51,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2025-02-08 09:00:51,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961752394] [2025-02-08 09:00:51,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:51,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 09:00:51,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:51,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 09:00:51,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2025-02-08 09:00:51,258 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 09:00:51,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:51,309 INFO L93 Difference]: Finished difference Result 91 states and 110 transitions. [2025-02-08 09:00:51,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 09:00:51,310 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2025-02-08 09:00:51,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:51,311 INFO L225 Difference]: With dead ends: 91 [2025-02-08 09:00:51,311 INFO L226 Difference]: Without dead ends: 69 [2025-02-08 09:00:51,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2025-02-08 09:00:51,312 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:51,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 107 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:51,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2025-02-08 09:00:51,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2025-02-08 09:00:51,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 52 states have internal predecessors, (61), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-08 09:00:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2025-02-08 09:00:51,321 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 30 [2025-02-08 09:00:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:51,322 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2025-02-08 09:00:51,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 09:00:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2025-02-08 09:00:51,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 09:00:51,323 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:51,323 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 09:00:51,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 09:00:51,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:51,527 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:51,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:51,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2083247127, now seen corresponding path program 2 times [2025-02-08 09:00:51,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:51,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80998041] [2025-02-08 09:00:51,528 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:00:51,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:51,535 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 76 statements into 2 equivalence classes. [2025-02-08 09:00:51,542 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 09:00:51,542 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:00:51,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2025-02-08 09:00:51,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:51,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80998041] [2025-02-08 09:00:51,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80998041] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:51,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380945428] [2025-02-08 09:00:51,603 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:00:51,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:51,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:51,605 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 09:00:51,607 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 09:00:51,630 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 76 statements into 2 equivalence classes. [2025-02-08 09:00:51,646 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 09:00:51,646 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:00:51,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:51,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 09:00:51,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 57 proven. 3 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-02-08 09:00:51,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:52,166 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 57 proven. 3 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-02-08 09:00:52,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380945428] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:52,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:52,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 19 [2025-02-08 09:00:52,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100300130] [2025-02-08 09:00:52,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:52,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 09:00:52,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:52,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 09:00:52,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2025-02-08 09:00:52,168 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 15 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-08 09:00:52,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:52,287 INFO L93 Difference]: Finished difference Result 132 states and 157 transitions. [2025-02-08 09:00:52,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 09:00:52,287 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 15 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 76 [2025-02-08 09:00:52,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:52,288 INFO L225 Difference]: With dead ends: 132 [2025-02-08 09:00:52,288 INFO L226 Difference]: Without dead ends: 86 [2025-02-08 09:00:52,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 133 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=546, Unknown=0, NotChecked=0, Total=650 [2025-02-08 09:00:52,289 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:52,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:00:52,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-02-08 09:00:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2025-02-08 09:00:52,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.1333333333333333) internal successors, (68), 60 states have internal predecessors, (68), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-08 09:00:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2025-02-08 09:00:52,296 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 76 [2025-02-08 09:00:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:52,297 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2025-02-08 09:00:52,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 15 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-08 09:00:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2025-02-08 09:00:52,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-08 09:00:52,298 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:52,298 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2025-02-08 09:00:52,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 09:00:52,498 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,SelfDestructingSolverStorable9 [2025-02-08 09:00:52,499 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:52,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:52,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2091133015, now seen corresponding path program 3 times [2025-02-08 09:00:52,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:52,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970300024] [2025-02-08 09:00:52,500 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 09:00:52,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:52,509 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 6 equivalence classes. [2025-02-08 09:00:52,515 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 42 of 75 statements. [2025-02-08 09:00:52,515 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 09:00:52,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-02-08 09:00:52,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:52,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970300024] [2025-02-08 09:00:52,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970300024] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:52,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221568821] [2025-02-08 09:00:52,584 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 09:00:52,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:52,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:52,586 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 09:00:52,587 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 09:00:52,610 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 6 equivalence classes. [2025-02-08 09:00:52,619 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 42 of 75 statements. [2025-02-08 09:00:52,619 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 09:00:52,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:52,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 09:00:52,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-02-08 09:00:52,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 41 proven. 5 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-02-08 09:00:52,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221568821] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:52,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:52,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-02-08 09:00:52,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632769246] [2025-02-08 09:00:52,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:52,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 09:00:52,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:52,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 09:00:52,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-02-08 09:00:52,792 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:52,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:52,837 INFO L93 Difference]: Finished difference Result 144 states and 171 transitions. [2025-02-08 09:00:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 09:00:52,838 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2025-02-08 09:00:52,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:52,839 INFO L225 Difference]: With dead ends: 144 [2025-02-08 09:00:52,839 INFO L226 Difference]: Without dead ends: 139 [2025-02-08 09:00:52,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-02-08 09:00:52,839 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:52,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:52,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2025-02-08 09:00:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 87. [2025-02-08 09:00:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 78 states have (on average 1.141025641025641) internal successors, (89), 78 states have internal predecessors, (89), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-08 09:00:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2025-02-08 09:00:52,848 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 75 [2025-02-08 09:00:52,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:52,848 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2025-02-08 09:00:52,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6) internal successors, (39), 16 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:00:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2025-02-08 09:00:52,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-08 09:00:52,849 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:52,849 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2025-02-08 09:00:52,855 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 09:00:53,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-08 09:00:53,050 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:53,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2077948245, now seen corresponding path program 4 times [2025-02-08 09:00:53,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:53,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823377363] [2025-02-08 09:00:53,051 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 09:00:53,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:53,059 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 84 statements into 2 equivalence classes. [2025-02-08 09:00:53,070 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 09:00:53,070 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 09:00:53,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 129 proven. 19 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-02-08 09:00:53,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:53,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823377363] [2025-02-08 09:00:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823377363] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:53,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870759013] [2025-02-08 09:00:53,311 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 09:00:53,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:53,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:53,313 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 09:00:53,314 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 09:00:53,339 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 84 statements into 2 equivalence classes. [2025-02-08 09:00:53,355 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 84 of 84 statements. [2025-02-08 09:00:53,355 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 09:00:53,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:53,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-08 09:00:53,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 80 proven. 35 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-02-08 09:00:53,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:53,924 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 80 proven. 35 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-02-08 09:00:53,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870759013] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:53,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:53,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 40 [2025-02-08 09:00:53,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746518459] [2025-02-08 09:00:53,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:53,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-02-08 09:00:53,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:53,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-02-08 09:00:53,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1298, Unknown=0, NotChecked=0, Total=1560 [2025-02-08 09:00:53,930 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand has 40 states, 40 states have (on average 2.0) internal successors, (80), 39 states have internal predecessors, (80), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:00:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:54,122 INFO L93 Difference]: Finished difference Result 310 states and 373 transitions. [2025-02-08 09:00:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-02-08 09:00:54,123 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.0) internal successors, (80), 39 states have internal predecessors, (80), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-02-08 09:00:54,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:54,126 INFO L225 Difference]: With dead ends: 310 [2025-02-08 09:00:54,126 INFO L226 Difference]: Without dead ends: 234 [2025-02-08 09:00:54,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=372, Invalid=1608, Unknown=0, NotChecked=0, Total=1980 [2025-02-08 09:00:54,130 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:54,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 162 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:00:54,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-02-08 09:00:54,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 156. [2025-02-08 09:00:54,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 145 states have (on average 1.1448275862068966) internal successors, (166), 145 states have internal predecessors, (166), 3 states have call successors, (3), 2 states have call predecessors, (3), 7 states have return successors, (8), 8 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-08 09:00:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 177 transitions. [2025-02-08 09:00:54,159 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 177 transitions. Word has length 84 [2025-02-08 09:00:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:54,160 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 177 transitions. [2025-02-08 09:00:54,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.0) internal successors, (80), 39 states have internal predecessors, (80), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 09:00:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 177 transitions. [2025-02-08 09:00:54,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-02-08 09:00:54,164 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:54,164 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2025-02-08 09:00:54,174 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 09:00:54,365 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,SelfDestructingSolverStorable11 [2025-02-08 09:00:54,365 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:54,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:54,366 INFO L85 PathProgramCache]: Analyzing trace with hash -225226933, now seen corresponding path program 5 times [2025-02-08 09:00:54,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:54,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612512279] [2025-02-08 09:00:54,366 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 09:00:54,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:54,377 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 105 statements into 12 equivalence classes. [2025-02-08 09:00:54,400 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 80 of 105 statements. [2025-02-08 09:00:54,400 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-02-08 09:00:54,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:54,511 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 169 proven. 8 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2025-02-08 09:00:54,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:54,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612512279] [2025-02-08 09:00:54,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612512279] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:54,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273842392] [2025-02-08 09:00:54,511 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 09:00:54,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:54,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:54,513 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 09:00:54,515 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 09:00:54,542 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 105 statements into 12 equivalence classes. [2025-02-08 09:00:54,561 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 80 of 105 statements. [2025-02-08 09:00:54,561 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-02-08 09:00:54,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:54,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 09:00:54,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:54,597 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 169 proven. 8 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2025-02-08 09:00:54,597 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:54,740 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 170 proven. 7 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2025-02-08 09:00:54,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273842392] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:54,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:54,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2025-02-08 09:00:54,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539968157] [2025-02-08 09:00:54,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:54,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 09:00:54,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:54,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 09:00:54,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-08 09:00:54,742 INFO L87 Difference]: Start difference. First operand 156 states and 177 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 09:00:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:54,806 INFO L93 Difference]: Finished difference Result 235 states and 269 transitions. [2025-02-08 09:00:54,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 09:00:54,806 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 105 [2025-02-08 09:00:54,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:54,807 INFO L225 Difference]: With dead ends: 235 [2025-02-08 09:00:54,807 INFO L226 Difference]: Without dead ends: 144 [2025-02-08 09:00:54,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 202 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2025-02-08 09:00:54,808 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:54,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:54,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2025-02-08 09:00:54,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2025-02-08 09:00:54,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 134 states have (on average 1.1194029850746268) internal successors, (150), 134 states have internal predecessors, (150), 3 states have call successors, (3), 2 states have call predecessors, (3), 6 states have return successors, (7), 7 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-08 09:00:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 160 transitions. [2025-02-08 09:00:54,840 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 160 transitions. Word has length 105 [2025-02-08 09:00:54,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:54,841 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 160 transitions. [2025-02-08 09:00:54,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 09:00:54,841 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 160 transitions. [2025-02-08 09:00:54,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-02-08 09:00:54,842 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:54,842 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2025-02-08 09:00:54,849 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 09:00:55,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:55,043 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:55,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash 664157321, now seen corresponding path program 6 times [2025-02-08 09:00:55,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:55,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351375554] [2025-02-08 09:00:55,044 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 09:00:55,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:55,052 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 108 statements into 12 equivalence classes. [2025-02-08 09:00:55,063 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 71 of 108 statements. [2025-02-08 09:00:55,064 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-02-08 09:00:55,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:55,195 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 192 proven. 87 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2025-02-08 09:00:55,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:55,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351375554] [2025-02-08 09:00:55,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351375554] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:55,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644992034] [2025-02-08 09:00:55,195 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 09:00:55,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:55,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:55,197 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 09:00:55,199 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 09:00:55,227 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 108 statements into 12 equivalence classes. [2025-02-08 09:00:55,242 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 71 of 108 statements. [2025-02-08 09:00:55,243 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-02-08 09:00:55,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:55,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 09:00:55,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 192 proven. 87 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2025-02-08 09:00:55,289 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 192 proven. 87 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2025-02-08 09:00:55,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644992034] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:55,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:55,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2025-02-08 09:00:55,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640626677] [2025-02-08 09:00:55,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:55,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-08 09:00:55,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:55,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-08 09:00:55,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2025-02-08 09:00:55,533 INFO L87 Difference]: Start difference. First operand 144 states and 160 transitions. Second operand has 20 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 09:00:55,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:55,734 INFO L93 Difference]: Finished difference Result 332 states and 379 transitions. [2025-02-08 09:00:55,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-02-08 09:00:55,735 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 108 [2025-02-08 09:00:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:55,736 INFO L225 Difference]: With dead ends: 332 [2025-02-08 09:00:55,736 INFO L226 Difference]: Without dead ends: 257 [2025-02-08 09:00:55,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2025-02-08 09:00:55,737 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:55,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:00:55,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2025-02-08 09:00:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 153. [2025-02-08 09:00:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 143 states have (on average 1.1398601398601398) internal successors, (163), 143 states have internal predecessors, (163), 3 states have call successors, (3), 2 states have call predecessors, (3), 6 states have return successors, (7), 7 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-08 09:00:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 173 transitions. [2025-02-08 09:00:55,748 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 173 transitions. Word has length 108 [2025-02-08 09:00:55,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:55,749 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 173 transitions. [2025-02-08 09:00:55,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 09:00:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 173 transitions. [2025-02-08 09:00:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-02-08 09:00:55,750 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:55,750 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2025-02-08 09:00:55,756 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 09:00:55,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:55,951 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:55,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash -537853333, now seen corresponding path program 7 times [2025-02-08 09:00:55,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:55,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136275623] [2025-02-08 09:00:55,951 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 09:00:55,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:55,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-08 09:00:55,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-08 09:00:55,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:55,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 135 proven. 6 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2025-02-08 09:00:56,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:56,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136275623] [2025-02-08 09:00:56,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136275623] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:56,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631267003] [2025-02-08 09:00:56,101 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 09:00:56,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:56,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:56,103 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 09:00:56,105 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 09:00:56,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-08 09:00:56,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-08 09:00:56,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:00:56,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:56,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 09:00:56,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 136 proven. 5 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2025-02-08 09:00:56,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 914 backedges. 136 proven. 5 refuted. 0 times theorem prover too weak. 773 trivial. 0 not checked. [2025-02-08 09:00:56,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631267003] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:56,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:56,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2025-02-08 09:00:56,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114474111] [2025-02-08 09:00:56,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:56,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 09:00:56,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:56,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 09:00:56,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-08 09:00:56,349 INFO L87 Difference]: Start difference. First operand 153 states and 173 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 09:00:56,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:56,395 INFO L93 Difference]: Finished difference Result 271 states and 309 transitions. [2025-02-08 09:00:56,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 09:00:56,396 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 133 [2025-02-08 09:00:56,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:56,396 INFO L225 Difference]: With dead ends: 271 [2025-02-08 09:00:56,397 INFO L226 Difference]: Without dead ends: 153 [2025-02-08 09:00:56,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 257 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-02-08 09:00:56,397 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:56,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:00:56,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-02-08 09:00:56,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2025-02-08 09:00:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 143 states have (on average 1.132867132867133) internal successors, (162), 143 states have internal predecessors, (162), 3 states have call successors, (3), 2 states have call predecessors, (3), 6 states have return successors, (7), 7 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-08 09:00:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 172 transitions. [2025-02-08 09:00:56,408 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 172 transitions. Word has length 133 [2025-02-08 09:00:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:56,408 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 172 transitions. [2025-02-08 09:00:56,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 09:00:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 172 transitions. [2025-02-08 09:00:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-08 09:00:56,409 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:56,409 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1] [2025-02-08 09:00:56,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-08 09:00:56,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:56,610 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:56,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:56,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1912179756, now seen corresponding path program 8 times [2025-02-08 09:00:56,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:56,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970679253] [2025-02-08 09:00:56,612 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:00:56,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:56,617 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 147 statements into 2 equivalence classes. [2025-02-08 09:00:56,633 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 09:00:56,633 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:00:56,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:57,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 496 proven. 197 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2025-02-08 09:00:57,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:57,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970679253] [2025-02-08 09:00:57,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970679253] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:57,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800636258] [2025-02-08 09:00:57,057 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:00:57,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:57,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:57,059 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 09:00:57,060 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 09:00:57,091 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 147 statements into 2 equivalence classes. [2025-02-08 09:00:57,116 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 09:00:57,116 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:00:57,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:57,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-08 09:00:57,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 488 proven. 197 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2025-02-08 09:00:57,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:00:58,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 488 proven. 197 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2025-02-08 09:00:58,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800636258] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:00:58,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:00:58,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 25] total 27 [2025-02-08 09:00:58,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676722732] [2025-02-08 09:00:58,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:00:58,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-08 09:00:58,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:00:58,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-08 09:00:58,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2025-02-08 09:00:58,315 INFO L87 Difference]: Start difference. First operand 153 states and 172 transitions. Second operand has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 6 states have call predecessors, (7), 1 states have call successors, (7) [2025-02-08 09:00:59,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:00:59,024 INFO L93 Difference]: Finished difference Result 319 states and 364 transitions. [2025-02-08 09:00:59,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-02-08 09:00:59,025 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 6 states have call predecessors, (7), 1 states have call successors, (7) Word has length 147 [2025-02-08 09:00:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:00:59,029 INFO L225 Difference]: With dead ends: 319 [2025-02-08 09:00:59,029 INFO L226 Difference]: Without dead ends: 204 [2025-02-08 09:00:59,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 271 SyntacticMatches, 22 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1426 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=544, Invalid=3616, Unknown=0, NotChecked=0, Total=4160 [2025-02-08 09:00:59,031 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 46 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:00:59,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 84 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:00:59,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-02-08 09:00:59,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 186. [2025-02-08 09:00:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 174 states have (on average 1.1264367816091954) internal successors, (196), 174 states have internal predecessors, (196), 3 states have call successors, (3), 2 states have call predecessors, (3), 8 states have return successors, (9), 9 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-08 09:00:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 208 transitions. [2025-02-08 09:00:59,061 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 208 transitions. Word has length 147 [2025-02-08 09:00:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:00:59,062 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 208 transitions. [2025-02-08 09:00:59,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 22 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 6 states have call predecessors, (7), 1 states have call successors, (7) [2025-02-08 09:00:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 208 transitions. [2025-02-08 09:00:59,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-02-08 09:00:59,066 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:00:59,066 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 24, 10, 9, 9, 9, 9, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2025-02-08 09:00:59,075 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 09:00:59,267 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,SelfDestructingSolverStorable15 [2025-02-08 09:00:59,267 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:00:59,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:00:59,268 INFO L85 PathProgramCache]: Analyzing trace with hash -635161719, now seen corresponding path program 9 times [2025-02-08 09:00:59,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:00:59,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503887109] [2025-02-08 09:00:59,268 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 09:00:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:00:59,287 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 164 statements into 12 equivalence classes. [2025-02-08 09:00:59,303 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 108 of 164 statements. [2025-02-08 09:00:59,308 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 09:00:59,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 336 proven. 518 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2025-02-08 09:00:59,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:00:59,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503887109] [2025-02-08 09:00:59,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503887109] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:00:59,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642664771] [2025-02-08 09:00:59,578 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 09:00:59,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:00:59,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:00:59,587 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 09:00:59,591 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 09:00:59,645 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 164 statements into 12 equivalence classes. [2025-02-08 09:00:59,668 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 108 of 164 statements. [2025-02-08 09:00:59,669 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 09:00:59,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:00:59,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 09:00:59,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:00:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 336 proven. 518 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2025-02-08 09:00:59,772 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 336 proven. 518 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2025-02-08 09:01:00,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642664771] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:00,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:00,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2025-02-08 09:01:00,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993216002] [2025-02-08 09:01:00,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:00,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-02-08 09:01:00,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:00,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-02-08 09:01:00,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2025-02-08 09:01:00,508 INFO L87 Difference]: Start difference. First operand 186 states and 208 transitions. Second operand has 32 states, 31 states have (on average 2.6774193548387095) internal successors, (83), 26 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-02-08 09:01:01,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:01,163 INFO L93 Difference]: Finished difference Result 563 states and 646 transitions. [2025-02-08 09:01:01,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-02-08 09:01:01,163 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.6774193548387095) internal successors, (83), 26 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 164 [2025-02-08 09:01:01,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:01,165 INFO L225 Difference]: With dead ends: 563 [2025-02-08 09:01:01,165 INFO L226 Difference]: Without dead ends: 414 [2025-02-08 09:01:01,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1551 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1062, Invalid=4340, Unknown=0, NotChecked=0, Total=5402 [2025-02-08 09:01:01,167 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:01,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:01:01,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2025-02-08 09:01:01,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 276. [2025-02-08 09:01:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 259 states have (on average 1.138996138996139) internal successors, (295), 259 states have internal predecessors, (295), 3 states have call successors, (3), 2 states have call predecessors, (3), 13 states have return successors, (14), 14 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-08 09:01:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 312 transitions. [2025-02-08 09:01:01,189 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 312 transitions. Word has length 164 [2025-02-08 09:01:01,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:01,190 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 312 transitions. [2025-02-08 09:01:01,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.6774193548387095) internal successors, (83), 26 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-02-08 09:01:01,190 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 312 transitions. [2025-02-08 09:01:01,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-02-08 09:01:01,192 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:01,192 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2025-02-08 09:01:01,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-08 09:01:01,392 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,SelfDestructingSolverStorable16 [2025-02-08 09:01:01,393 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:01,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash -363695860, now seen corresponding path program 10 times [2025-02-08 09:01:01,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:01,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852089161] [2025-02-08 09:01:01,394 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 09:01:01,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:01,400 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 229 statements into 2 equivalence classes. [2025-02-08 09:01:01,428 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 229 of 229 statements. [2025-02-08 09:01:01,428 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 09:01:01,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:01,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 1462 proven. 57 refuted. 0 times theorem prover too weak. 1485 trivial. 0 not checked. [2025-02-08 09:01:01,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:01,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852089161] [2025-02-08 09:01:01,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852089161] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:01,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109771956] [2025-02-08 09:01:01,721 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 09:01:01,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:01,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:01,723 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 09:01:01,725 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 09:01:01,779 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 229 statements into 2 equivalence classes. [2025-02-08 09:01:01,820 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 229 of 229 statements. [2025-02-08 09:01:01,820 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 09:01:01,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:01,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-08 09:01:01,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 1220 proven. 88 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2025-02-08 09:01:01,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 1220 proven. 88 refuted. 0 times theorem prover too weak. 1696 trivial. 0 not checked. [2025-02-08 09:01:03,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109771956] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:03,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:03,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23, 23] total 28 [2025-02-08 09:01:03,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407525758] [2025-02-08 09:01:03,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:03,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-08 09:01:03,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:03,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-08 09:01:03,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=667, Unknown=0, NotChecked=0, Total=756 [2025-02-08 09:01:03,762 INFO L87 Difference]: Start difference. First operand 276 states and 312 transitions. Second operand has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 23 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-02-08 09:01:04,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:04,202 INFO L93 Difference]: Finished difference Result 436 states and 499 transitions. [2025-02-08 09:01:04,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-08 09:01:04,202 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 23 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 229 [2025-02-08 09:01:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:04,203 INFO L225 Difference]: With dead ends: 436 [2025-02-08 09:01:04,203 INFO L226 Difference]: Without dead ends: 231 [2025-02-08 09:01:04,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 426 SyntacticMatches, 21 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=295, Invalid=2057, Unknown=0, NotChecked=0, Total=2352 [2025-02-08 09:01:04,205 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:04,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:01:04,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2025-02-08 09:01:04,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2025-02-08 09:01:04,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 217 states have (on average 1.0829493087557605) internal successors, (235), 217 states have internal predecessors, (235), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 11 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 09:01:04,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 249 transitions. [2025-02-08 09:01:04,220 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 249 transitions. Word has length 229 [2025-02-08 09:01:04,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:04,221 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 249 transitions. [2025-02-08 09:01:04,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 23 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-02-08 09:01:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 249 transitions. [2025-02-08 09:01:04,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2025-02-08 09:01:04,222 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:04,222 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2025-02-08 09:01:04,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 09:01:04,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 09:01:04,427 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:04,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:04,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1275865176, now seen corresponding path program 11 times [2025-02-08 09:01:04,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:04,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518688502] [2025-02-08 09:01:04,428 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 09:01:04,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:04,434 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 235 statements into 12 equivalence classes. [2025-02-08 09:01:04,444 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 150 of 235 statements. [2025-02-08 09:01:04,444 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-02-08 09:01:04,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3255 backedges. 1649 proven. 190 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2025-02-08 09:01:04,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:04,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518688502] [2025-02-08 09:01:04,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518688502] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:04,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600700099] [2025-02-08 09:01:04,747 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 09:01:04,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:04,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:04,750 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 09:01:04,757 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 09:01:04,835 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 235 statements into 12 equivalence classes. [2025-02-08 09:01:04,865 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) and asserted 150 of 235 statements. [2025-02-08 09:01:04,865 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-02-08 09:01:04,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:04,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 09:01:04,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3255 backedges. 1660 proven. 185 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2025-02-08 09:01:04,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3255 backedges. 1673 proven. 172 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2025-02-08 09:01:06,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600700099] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:06,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:06,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24, 24] total 27 [2025-02-08 09:01:06,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312968750] [2025-02-08 09:01:06,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:06,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-08 09:01:06,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:06,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-08 09:01:06,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2025-02-08 09:01:06,401 INFO L87 Difference]: Start difference. First operand 231 states and 249 transitions. Second operand has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 23 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-08 09:01:06,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:06,846 INFO L93 Difference]: Finished difference Result 376 states and 411 transitions. [2025-02-08 09:01:06,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-02-08 09:01:06,847 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 23 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 235 [2025-02-08 09:01:06,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:06,848 INFO L225 Difference]: With dead ends: 376 [2025-02-08 09:01:06,848 INFO L226 Difference]: Without dead ends: 234 [2025-02-08 09:01:06,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 445 SyntacticMatches, 21 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=443, Invalid=2313, Unknown=0, NotChecked=0, Total=2756 [2025-02-08 09:01:06,850 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:06,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:01:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-02-08 09:01:06,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2025-02-08 09:01:06,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 220 states have (on average 1.0636363636363637) internal successors, (234), 220 states have internal predecessors, (234), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 11 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 09:01:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 248 transitions. [2025-02-08 09:01:06,866 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 248 transitions. Word has length 235 [2025-02-08 09:01:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:06,866 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 248 transitions. [2025-02-08 09:01:06,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 23 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2025-02-08 09:01:06,866 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 248 transitions. [2025-02-08 09:01:06,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2025-02-08 09:01:06,867 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:06,867 INFO L218 NwaCegarLoop]: trace histogram [41, 41, 41, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2025-02-08 09:01:06,873 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 09:01:07,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:07,069 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:07,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:07,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1129808876, now seen corresponding path program 12 times [2025-02-08 09:01:07,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:07,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170505699] [2025-02-08 09:01:07,069 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 09:01:07,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:07,076 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 248 statements into 13 equivalence classes. [2025-02-08 09:01:07,131 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 248 of 248 statements. [2025-02-08 09:01:07,132 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-02-08 09:01:07,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:07,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3494 backedges. 1146 proven. 176 refuted. 0 times theorem prover too weak. 2172 trivial. 0 not checked. [2025-02-08 09:01:07,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:07,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170505699] [2025-02-08 09:01:07,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170505699] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:07,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929257892] [2025-02-08 09:01:07,601 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 09:01:07,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:07,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:07,603 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 09:01:07,605 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 09:01:07,719 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 248 statements into 13 equivalence classes. [2025-02-08 09:01:07,780 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) and asserted 248 of 248 statements. [2025-02-08 09:01:07,781 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2025-02-08 09:01:07,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:07,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 09:01:07,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3494 backedges. 1453 proven. 219 refuted. 0 times theorem prover too weak. 1822 trivial. 0 not checked. [2025-02-08 09:01:07,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3494 backedges. 1453 proven. 219 refuted. 0 times theorem prover too weak. 1822 trivial. 0 not checked. [2025-02-08 09:01:08,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929257892] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:08,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:08,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 16, 16] total 46 [2025-02-08 09:01:08,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876390588] [2025-02-08 09:01:08,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:08,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-02-08 09:01:08,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:08,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-02-08 09:01:08,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2025-02-08 09:01:08,562 INFO L87 Difference]: Start difference. First operand 234 states and 248 transitions. Second operand has 47 states, 46 states have (on average 2.0434782608695654) internal successors, (94), 45 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 09:01:09,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:09,473 INFO L93 Difference]: Finished difference Result 784 states and 912 transitions. [2025-02-08 09:01:09,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2025-02-08 09:01:09,473 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.0434782608695654) internal successors, (94), 45 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 248 [2025-02-08 09:01:09,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:09,476 INFO L225 Difference]: With dead ends: 784 [2025-02-08 09:01:09,476 INFO L226 Difference]: Without dead ends: 687 [2025-02-08 09:01:09,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2198 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1769, Invalid=6787, Unknown=0, NotChecked=0, Total=8556 [2025-02-08 09:01:09,478 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:09,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:01:09,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2025-02-08 09:01:09,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 309. [2025-02-08 09:01:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 295 states have (on average 1.111864406779661) internal successors, (328), 295 states have internal predecessors, (328), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 11 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 09:01:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 342 transitions. [2025-02-08 09:01:09,509 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 342 transitions. Word has length 248 [2025-02-08 09:01:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:09,510 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 342 transitions. [2025-02-08 09:01:09,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.0434782608695654) internal successors, (94), 45 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 09:01:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 342 transitions. [2025-02-08 09:01:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2025-02-08 09:01:09,512 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:09,512 INFO L218 NwaCegarLoop]: trace histogram [60, 60, 60, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2025-02-08 09:01:09,519 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 09:01:09,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:09,713 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:09,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:09,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1775045560, now seen corresponding path program 13 times [2025-02-08 09:01:09,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:09,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587176139] [2025-02-08 09:01:09,713 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 09:01:09,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:09,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 305 statements into 1 equivalence classes. [2025-02-08 09:01:09,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 305 of 305 statements. [2025-02-08 09:01:09,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:01:09,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6534 backedges. 3350 proven. 274 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2025-02-08 09:01:10,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:10,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587176139] [2025-02-08 09:01:10,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587176139] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:10,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058290817] [2025-02-08 09:01:10,412 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 09:01:10,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:10,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:10,414 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 09:01:10,415 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 09:01:10,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 305 statements into 1 equivalence classes. [2025-02-08 09:01:10,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 305 of 305 statements. [2025-02-08 09:01:10,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:01:10,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:10,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-02-08 09:01:10,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:10,720 INFO L134 CoverageAnalysis]: Checked inductivity of 6534 backedges. 3310 proven. 311 refuted. 0 times theorem prover too weak. 2913 trivial. 0 not checked. [2025-02-08 09:01:10,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6534 backedges. 3310 proven. 311 refuted. 0 times theorem prover too weak. 2913 trivial. 0 not checked. [2025-02-08 09:01:13,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058290817] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:13,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:13,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33, 33] total 36 [2025-02-08 09:01:13,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111194010] [2025-02-08 09:01:13,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:13,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-02-08 09:01:13,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:13,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-02-08 09:01:13,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1078, Unknown=0, NotChecked=0, Total=1260 [2025-02-08 09:01:13,861 INFO L87 Difference]: Start difference. First operand 309 states and 342 transitions. Second operand has 36 states, 36 states have (on average 2.361111111111111) internal successors, (85), 29 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-08 09:01:14,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:14,285 INFO L93 Difference]: Finished difference Result 508 states and 572 transitions. [2025-02-08 09:01:14,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2025-02-08 09:01:14,285 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.361111111111111) internal successors, (85), 29 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) Word has length 305 [2025-02-08 09:01:14,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:14,287 INFO L225 Difference]: With dead ends: 508 [2025-02-08 09:01:14,287 INFO L226 Difference]: Without dead ends: 312 [2025-02-08 09:01:14,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 577 SyntacticMatches, 31 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1764 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=575, Invalid=3085, Unknown=0, NotChecked=0, Total=3660 [2025-02-08 09:01:14,288 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:14,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 323 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:01:14,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2025-02-08 09:01:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2025-02-08 09:01:14,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 298 states have (on average 1.1006711409395973) internal successors, (328), 298 states have internal predecessors, (328), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 11 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 09:01:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 342 transitions. [2025-02-08 09:01:14,315 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 342 transitions. Word has length 305 [2025-02-08 09:01:14,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:14,316 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 342 transitions. [2025-02-08 09:01:14,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.361111111111111) internal successors, (85), 29 states have internal predecessors, (85), 1 states have call successors, (2), 1 states have call predecessors, (2), 8 states have return successors, (8), 8 states have call predecessors, (8), 1 states have call successors, (8) [2025-02-08 09:01:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 342 transitions. [2025-02-08 09:01:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2025-02-08 09:01:14,317 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:14,317 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 13, 12, 12, 12, 12, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2025-02-08 09:01:14,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-02-08 09:01:14,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:14,521 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:14,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:14,522 INFO L85 PathProgramCache]: Analyzing trace with hash 634851552, now seen corresponding path program 14 times [2025-02-08 09:01:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:14,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487986638] [2025-02-08 09:01:14,522 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:01:14,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:14,532 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 308 statements into 2 equivalence classes. [2025-02-08 09:01:14,565 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 308 of 308 statements. [2025-02-08 09:01:14,565 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:01:14,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6724 backedges. 4036 proven. 450 refuted. 0 times theorem prover too weak. 2238 trivial. 0 not checked. [2025-02-08 09:01:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487986638] [2025-02-08 09:01:15,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487986638] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871745019] [2025-02-08 09:01:15,379 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:01:15,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:15,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:15,385 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 09:01:15,386 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 09:01:15,533 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 308 statements into 2 equivalence classes. [2025-02-08 09:01:15,591 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 308 of 308 statements. [2025-02-08 09:01:15,591 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:01:15,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:15,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-02-08 09:01:15,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 6724 backedges. 3984 proven. 499 refuted. 0 times theorem prover too weak. 2241 trivial. 0 not checked. [2025-02-08 09:01:15,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:19,603 INFO L134 CoverageAnalysis]: Checked inductivity of 6724 backedges. 3984 proven. 499 refuted. 0 times theorem prover too weak. 2241 trivial. 0 not checked. [2025-02-08 09:01:19,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871745019] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:19,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:19,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38, 38] total 41 [2025-02-08 09:01:19,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992386493] [2025-02-08 09:01:19,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:19,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-02-08 09:01:19,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:19,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-02-08 09:01:19,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1413, Unknown=0, NotChecked=0, Total=1640 [2025-02-08 09:01:19,609 INFO L87 Difference]: Start difference. First operand 312 states and 342 transitions. Second operand has 41 states, 41 states have (on average 2.341463414634146) internal successors, (96), 33 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2025-02-08 09:01:20,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:20,190 INFO L93 Difference]: Finished difference Result 487 states and 544 transitions. [2025-02-08 09:01:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2025-02-08 09:01:20,191 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 2.341463414634146) internal successors, (96), 33 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 308 [2025-02-08 09:01:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:20,193 INFO L225 Difference]: With dead ends: 487 [2025-02-08 09:01:20,193 INFO L226 Difference]: Without dead ends: 315 [2025-02-08 09:01:20,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 578 SyntacticMatches, 36 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2690 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=902, Invalid=4950, Unknown=0, NotChecked=0, Total=5852 [2025-02-08 09:01:20,196 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:20,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 386 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:01:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2025-02-08 09:01:20,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2025-02-08 09:01:20,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 301 states have (on average 1.0930232558139534) internal successors, (329), 301 states have internal predecessors, (329), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 11 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-08 09:01:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 343 transitions. [2025-02-08 09:01:20,221 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 343 transitions. Word has length 308 [2025-02-08 09:01:20,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:20,221 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 343 transitions. [2025-02-08 09:01:20,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.341463414634146) internal successors, (96), 33 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2025-02-08 09:01:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 343 transitions. [2025-02-08 09:01:20,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2025-02-08 09:01:20,223 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:20,223 INFO L218 NwaCegarLoop]: trace histogram [62, 62, 62, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1] [2025-02-08 09:01:20,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-02-08 09:01:20,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:20,427 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:20,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:20,428 INFO L85 PathProgramCache]: Analyzing trace with hash -990102516, now seen corresponding path program 15 times [2025-02-08 09:01:20,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:20,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375644426] [2025-02-08 09:01:20,431 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 09:01:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:20,442 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 301 statements into 19 equivalence classes. [2025-02-08 09:01:20,470 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 230 of 301 statements. [2025-02-08 09:01:20,471 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-02-08 09:01:20,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 6808 backedges. 0 proven. 5517 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2025-02-08 09:01:20,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:20,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375644426] [2025-02-08 09:01:20,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375644426] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:20,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47251386] [2025-02-08 09:01:20,986 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 09:01:20,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:20,988 INFO L229 MonitoredProcess]: Starting monitored process 18 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 09:01:20,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-08 09:01:21,168 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 301 statements into 19 equivalence classes. [2025-02-08 09:01:21,214 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 230 of 301 statements. [2025-02-08 09:01:21,214 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-02-08 09:01:21,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:21,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 09:01:21,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 6808 backedges. 2592 proven. 2538 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked. [2025-02-08 09:01:21,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 6808 backedges. 2592 proven. 2538 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked. [2025-02-08 09:01:23,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47251386] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:23,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:23,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 24, 24] total 67 [2025-02-08 09:01:23,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865128755] [2025-02-08 09:01:23,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:23,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2025-02-08 09:01:23,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:23,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2025-02-08 09:01:23,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=680, Invalid=3876, Unknown=0, NotChecked=0, Total=4556 [2025-02-08 09:01:23,241 INFO L87 Difference]: Start difference. First operand 315 states and 343 transitions. Second operand has 68 states, 67 states have (on average 2.373134328358209) internal successors, (159), 55 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 14 states have return successors, (14), 14 states have call predecessors, (14), 1 states have call successors, (14) [2025-02-08 09:01:27,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:27,847 INFO L93 Difference]: Finished difference Result 1063 states and 1201 transitions. [2025-02-08 09:01:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2025-02-08 09:01:27,848 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 2.373134328358209) internal successors, (159), 55 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 14 states have return successors, (14), 14 states have call predecessors, (14), 1 states have call successors, (14) Word has length 301 [2025-02-08 09:01:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:27,850 INFO L225 Difference]: With dead ends: 1063 [2025-02-08 09:01:27,850 INFO L226 Difference]: Without dead ends: 842 [2025-02-08 09:01:27,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 565 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19093 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=10991, Invalid=42139, Unknown=0, NotChecked=0, Total=53130 [2025-02-08 09:01:27,856 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:27,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:01:27,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2025-02-08 09:01:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 459. [2025-02-08 09:01:27,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 441 states have (on average 1.0997732426303855) internal successors, (485), 441 states have internal predecessors, (485), 3 states have call successors, (3), 2 states have call predecessors, (3), 14 states have return successors, (15), 15 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-08 09:01:27,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 503 transitions. [2025-02-08 09:01:27,893 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 503 transitions. Word has length 301 [2025-02-08 09:01:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:27,894 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 503 transitions. [2025-02-08 09:01:27,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 2.373134328358209) internal successors, (159), 55 states have internal predecessors, (159), 1 states have call successors, (2), 1 states have call predecessors, (2), 14 states have return successors, (14), 14 states have call predecessors, (14), 1 states have call successors, (14) [2025-02-08 09:01:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 503 transitions. [2025-02-08 09:01:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2025-02-08 09:01:27,896 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:27,896 INFO L218 NwaCegarLoop]: trace histogram [102, 102, 102, 17, 16, 16, 16, 16, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1] [2025-02-08 09:01:27,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-08 09:01:28,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:28,100 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:28,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1515607124, now seen corresponding path program 16 times [2025-02-08 09:01:28,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:28,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847904633] [2025-02-08 09:01:28,100 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 09:01:28,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:28,112 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 475 statements into 2 equivalence classes. [2025-02-08 09:01:28,234 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 475 of 475 statements. [2025-02-08 09:01:28,234 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 09:01:28,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:29,126 INFO L134 CoverageAnalysis]: Checked inductivity of 18059 backedges. 10016 proven. 267 refuted. 0 times theorem prover too weak. 7776 trivial. 0 not checked. [2025-02-08 09:01:29,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:29,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847904633] [2025-02-08 09:01:29,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847904633] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:29,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182111094] [2025-02-08 09:01:29,131 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 09:01:29,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:29,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:29,133 INFO L229 MonitoredProcess]: Starting monitored process 19 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 09:01:29,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-08 09:01:29,337 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 475 statements into 2 equivalence classes. [2025-02-08 09:01:29,421 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 475 of 475 statements. [2025-02-08 09:01:29,421 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 09:01:29,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:29,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-02-08 09:01:29,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 18059 backedges. 9443 proven. 750 refuted. 0 times theorem prover too weak. 7866 trivial. 0 not checked. [2025-02-08 09:01:30,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 18059 backedges. 9443 proven. 750 refuted. 0 times theorem prover too weak. 7866 trivial. 0 not checked. [2025-02-08 09:01:37,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182111094] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:37,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:37,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 43, 43] total 56 [2025-02-08 09:01:37,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530102700] [2025-02-08 09:01:37,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:37,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2025-02-08 09:01:37,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:37,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2025-02-08 09:01:37,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=2797, Unknown=0, NotChecked=0, Total=3080 [2025-02-08 09:01:37,693 INFO L87 Difference]: Start difference. First operand 459 states and 503 transitions. Second operand has 56 states, 56 states have (on average 2.3214285714285716) internal successors, (130), 47 states have internal predecessors, (130), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-08 09:01:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:39,672 INFO L93 Difference]: Finished difference Result 892 states and 985 transitions. [2025-02-08 09:01:39,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2025-02-08 09:01:39,672 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 2.3214285714285716) internal successors, (130), 47 states have internal predecessors, (130), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 475 [2025-02-08 09:01:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:39,675 INFO L225 Difference]: With dead ends: 892 [2025-02-08 09:01:39,675 INFO L226 Difference]: Without dead ends: 549 [2025-02-08 09:01:39,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1058 GetRequests, 886 SyntacticMatches, 41 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7032 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1813, Invalid=15743, Unknown=0, NotChecked=0, Total=17556 [2025-02-08 09:01:39,678 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 3083 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:39,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 708 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3083 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-08 09:01:39,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2025-02-08 09:01:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 514. [2025-02-08 09:01:39,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 493 states have (on average 1.0872210953346857) internal successors, (536), 493 states have internal predecessors, (536), 3 states have call successors, (3), 2 states have call predecessors, (3), 17 states have return successors, (18), 18 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-08 09:01:39,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 557 transitions. [2025-02-08 09:01:39,743 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 557 transitions. Word has length 475 [2025-02-08 09:01:39,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:39,743 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 557 transitions. [2025-02-08 09:01:39,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.3214285714285716) internal successors, (130), 47 states have internal predecessors, (130), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-08 09:01:39,744 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 557 transitions. [2025-02-08 09:01:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2025-02-08 09:01:39,746 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:39,746 INFO L218 NwaCegarLoop]: trace histogram [104, 104, 104, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1] [2025-02-08 09:01:39,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-02-08 09:01:39,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-02-08 09:01:39,950 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:39,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:39,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1378591256, now seen corresponding path program 17 times [2025-02-08 09:01:39,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:39,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259675329] [2025-02-08 09:01:39,951 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 09:01:39,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:39,963 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 471 statements into 19 equivalence classes. [2025-02-08 09:01:39,993 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) and asserted 386 of 471 statements. [2025-02-08 09:01:39,993 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2025-02-08 09:01:39,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18553 backedges. 10889 proven. 912 refuted. 0 times theorem prover too weak. 6752 trivial. 0 not checked. [2025-02-08 09:01:40,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:40,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259675329] [2025-02-08 09:01:40,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259675329] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:40,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835377272] [2025-02-08 09:01:40,743 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 09:01:40,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:40,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:40,745 INFO L229 MonitoredProcess]: Starting monitored process 20 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 09:01:40,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-08 09:01:41,030 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 471 statements into 19 equivalence classes. [2025-02-08 09:01:41,104 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) and asserted 386 of 471 statements. [2025-02-08 09:01:41,104 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2025-02-08 09:01:41,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:41,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 43 conjuncts are in the unsatisfiable core [2025-02-08 09:01:41,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:41,447 INFO L134 CoverageAnalysis]: Checked inductivity of 18553 backedges. 11002 proven. 1178 refuted. 0 times theorem prover too weak. 6373 trivial. 0 not checked. [2025-02-08 09:01:41,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:46,910 INFO L134 CoverageAnalysis]: Checked inductivity of 18553 backedges. 11150 proven. 1030 refuted. 0 times theorem prover too weak. 6373 trivial. 0 not checked. [2025-02-08 09:01:46,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835377272] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:46,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:46,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 43, 43] total 54 [2025-02-08 09:01:46,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943415479] [2025-02-08 09:01:46,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:46,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2025-02-08 09:01:46,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:46,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2025-02-08 09:01:46,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=2567, Unknown=0, NotChecked=0, Total=2862 [2025-02-08 09:01:46,913 INFO L87 Difference]: Start difference. First operand 514 states and 557 transitions. Second operand has 54 states, 54 states have (on average 2.3518518518518516) internal successors, (127), 47 states have internal predecessors, (127), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2025-02-08 09:01:48,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:01:48,927 INFO L93 Difference]: Finished difference Result 910 states and 992 transitions. [2025-02-08 09:01:48,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2025-02-08 09:01:48,931 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 2.3518518518518516) internal successors, (127), 47 states have internal predecessors, (127), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 471 [2025-02-08 09:01:48,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:01:48,936 INFO L225 Difference]: With dead ends: 910 [2025-02-08 09:01:48,936 INFO L226 Difference]: Without dead ends: 618 [2025-02-08 09:01:48,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1064 GetRequests, 889 SyntacticMatches, 38 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6791 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2460, Invalid=16722, Unknown=0, NotChecked=0, Total=19182 [2025-02-08 09:01:48,939 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 09:01:48,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 09:01:48,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2025-02-08 09:01:48,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 558. [2025-02-08 09:01:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 535 states have (on average 1.0766355140186916) internal successors, (576), 535 states have internal predecessors, (576), 3 states have call successors, (3), 2 states have call predecessors, (3), 19 states have return successors, (20), 20 states have call predecessors, (20), 2 states have call successors, (20) [2025-02-08 09:01:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 599 transitions. [2025-02-08 09:01:48,993 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 599 transitions. Word has length 471 [2025-02-08 09:01:48,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:01:48,994 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 599 transitions. [2025-02-08 09:01:48,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.3518518518518516) internal successors, (127), 47 states have internal predecessors, (127), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2025-02-08 09:01:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 599 transitions. [2025-02-08 09:01:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2025-02-08 09:01:48,997 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:01:48,997 INFO L218 NwaCegarLoop]: trace histogram [105, 105, 105, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1] [2025-02-08 09:01:49,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-08 09:01:49,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:49,198 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:01:49,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:01:49,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1685146164, now seen corresponding path program 18 times [2025-02-08 09:01:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:01:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754619168] [2025-02-08 09:01:49,199 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 09:01:49,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:01:49,213 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 474 statements into 19 equivalence classes. [2025-02-08 09:01:49,267 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) and asserted 474 of 474 statements. [2025-02-08 09:01:49,269 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2025-02-08 09:01:49,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 703 proven. 15936 refuted. 0 times theorem prover too weak. 2240 trivial. 0 not checked. [2025-02-08 09:01:50,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:01:50,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754619168] [2025-02-08 09:01:50,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754619168] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:01:50,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471611636] [2025-02-08 09:01:50,292 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 09:01:50,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:01:50,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:01:50,297 INFO L229 MonitoredProcess]: Starting monitored process 21 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 09:01:50,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-08 09:01:50,658 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 474 statements into 19 equivalence classes. [2025-02-08 09:01:50,761 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) and asserted 474 of 474 statements. [2025-02-08 09:01:50,761 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2025-02-08 09:01:50,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:01:50,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-02-08 09:01:50,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:01:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 6318 proven. 9601 refuted. 0 times theorem prover too weak. 2960 trivial. 0 not checked. [2025-02-08 09:01:51,157 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:01:56,265 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 6318 proven. 9601 refuted. 0 times theorem prover too weak. 2960 trivial. 0 not checked. [2025-02-08 09:01:56,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471611636] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:01:56,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 09:01:56,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 35, 35] total 84 [2025-02-08 09:01:56,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017127864] [2025-02-08 09:01:56,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 09:01:56,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2025-02-08 09:01:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:01:56,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2025-02-08 09:01:56,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1016, Invalid=6124, Unknown=0, NotChecked=0, Total=7140 [2025-02-08 09:01:56,268 INFO L87 Difference]: Start difference. First operand 558 states and 599 transitions. Second operand has 85 states, 84 states have (on average 2.4047619047619047) internal successors, (202), 68 states have internal predecessors, (202), 1 states have call successors, (2), 1 states have call predecessors, (2), 18 states have return successors, (18), 18 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-08 09:02:07,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:02:07,522 INFO L93 Difference]: Finished difference Result 2258 states and 2500 transitions. [2025-02-08 09:02:07,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 403 states. [2025-02-08 09:02:07,523 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 2.4047619047619047) internal successors, (202), 68 states have internal predecessors, (202), 1 states have call successors, (2), 1 states have call predecessors, (2), 18 states have return successors, (18), 18 states have call predecessors, (18), 1 states have call successors, (18) Word has length 474 [2025-02-08 09:02:07,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:02:07,529 INFO L225 Difference]: With dead ends: 2258 [2025-02-08 09:02:07,529 INFO L226 Difference]: Without dead ends: 1872 [2025-02-08 09:02:07,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 903 SyntacticMatches, 0 SemanticMatches, 402 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70403 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=33611, Invalid=129201, Unknown=0, NotChecked=0, Total=162812 [2025-02-08 09:02:07,587 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 09:02:07,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 09:02:07,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2025-02-08 09:02:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 855. [2025-02-08 09:02:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 825 states have (on average 1.084848484848485) internal successors, (895), 825 states have internal predecessors, (895), 3 states have call successors, (3), 2 states have call predecessors, (3), 26 states have return successors, (27), 27 states have call predecessors, (27), 2 states have call successors, (27) [2025-02-08 09:02:07,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 925 transitions. [2025-02-08 09:02:07,683 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 925 transitions. Word has length 474 [2025-02-08 09:02:07,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:02:07,683 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 925 transitions. [2025-02-08 09:02:07,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 84 states have (on average 2.4047619047619047) internal successors, (202), 68 states have internal predecessors, (202), 1 states have call successors, (2), 1 states have call predecessors, (2), 18 states have return successors, (18), 18 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-08 09:02:07,683 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 925 transitions. [2025-02-08 09:02:07,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2025-02-08 09:02:07,688 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:02:07,688 INFO L218 NwaCegarLoop]: trace histogram [190, 190, 190, 24, 23, 23, 23, 23, 21, 21, 21, 21, 21, 20, 1, 1, 1, 1, 1] [2025-02-08 09:02:07,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-02-08 09:02:07,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-02-08 09:02:07,892 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:02:07,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:02:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2101038517, now seen corresponding path program 19 times [2025-02-08 09:02:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:02:07,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362889804] [2025-02-08 09:02:07,893 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 09:02:07,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:02:07,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 816 statements into 1 equivalence classes. [2025-02-08 09:02:08,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 816 of 816 statements. [2025-02-08 09:02:08,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:02:08,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:02:09,689 INFO L134 CoverageAnalysis]: Checked inductivity of 60426 backedges. 33087 proven. 420 refuted. 0 times theorem prover too weak. 26919 trivial. 0 not checked. [2025-02-08 09:02:09,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:02:09,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362889804] [2025-02-08 09:02:09,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362889804] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:02:09,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259758930] [2025-02-08 09:02:09,690 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 09:02:09,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:02:09,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:02:09,691 INFO L229 MonitoredProcess]: Starting monitored process 22 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 09:02:09,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-08 09:02:10,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 816 statements into 1 equivalence classes. [2025-02-08 09:02:10,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 816 of 816 statements. [2025-02-08 09:02:10,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:02:10,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:02:10,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 1844 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-02-08 09:02:10,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:02:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 60426 backedges. 28043 proven. 1477 refuted. 0 times theorem prover too weak. 30906 trivial. 0 not checked. [2025-02-08 09:02:11,006 INFO L312 TraceCheckSpWp]: Computing backward predicates...