./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:27:26,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:27:26,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 13:27:26,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:27:26,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:27:26,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:27:26,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:27:26,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:27:26,128 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:27:26,128 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:27:26,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:27:26,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:27:26,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:27:26,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:27:26,128 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:27:26,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:27:26,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 13:27:26,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:27:26,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:27:26,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 13:27:26,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:27:26,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 13:27:26,130 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 13:27:26,130 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:27:26,131 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:27:26,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:27:26,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:27:26,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:27:26,132 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 [2025-02-06 13:27:26,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:27:26,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:27:26,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:27:26,410 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:27:26,410 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:27:26,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2025-02-06 13:27:27,644 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b3b0ed599/c90e48e23457428c8452f8d3d75f96d3/FLAG019829c82 [2025-02-06 13:27:27,892 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:27:27,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2025-02-06 13:27:27,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b3b0ed599/c90e48e23457428c8452f8d3d75f96d3/FLAG019829c82 [2025-02-06 13:27:28,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b3b0ed599/c90e48e23457428c8452f8d3d75f96d3 [2025-02-06 13:27:28,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:27:28,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:27:28,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:27:28,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:27:28,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:27:28,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b2a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28, skipping insertion in model container [2025-02-06 13:27:28,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:27:28,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:27:28,327 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:27:28,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:27:28,344 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:27:28,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28 WrapperNode [2025-02-06 13:27:28,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:27:28,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:27:28,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:27:28,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:27:28,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,363 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2025-02-06 13:27:28,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:27:28,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:27:28,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:27:28,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:27:28,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,369 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,374 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-06 13:27:28,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,375 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:27:28,377 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:27:28,377 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:27:28,377 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:27:28,380 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (1/1) ... [2025-02-06 13:27:28,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:27:28,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:28,411 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) [2025-02-06 13:27:28,421 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 [2025-02-06 13:27:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:27:28,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:27:28,492 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:27:28,493 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:27:28,558 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-02-06 13:27:28,558 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:27:28,564 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:27:28,564 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:27:28,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:27:28 BoogieIcfgContainer [2025-02-06 13:27:28,565 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:27:28,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:27:28,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:27:28,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:27:28,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:27:28" (1/3) ... [2025-02-06 13:27:28,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334673e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:27:28, skipping insertion in model container [2025-02-06 13:27:28,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:27:28" (2/3) ... [2025-02-06 13:27:28,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334673e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:27:28, skipping insertion in model container [2025-02-06 13:27:28,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:27:28" (3/3) ... [2025-02-06 13:27:28,571 INFO L128 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c [2025-02-06 13:27:28,580 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:27:28,581 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c that has 1 procedures, 17 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2025-02-06 13:27:28,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:27:28,623 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;@305ffa42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:27:28,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 13:27:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:28,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 13:27:28,630 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:28,631 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 13:27:28,631 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:28,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:28,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1418987965, now seen corresponding path program 1 times [2025-02-06 13:27:28,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:28,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079305873] [2025-02-06 13:27:28,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:27:28,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:28,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 13:27:28,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 13:27:28,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:28,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:27:28,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:28,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079305873] [2025-02-06 13:27:28,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079305873] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:27:28,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:27:28,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:27:28,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010641466] [2025-02-06 13:27:28,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:27:28,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:27:28,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:28,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:27:28,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:27:28,786 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:28,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:28,836 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2025-02-06 13:27:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:27:28,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-06 13:27:28,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:28,842 INFO L225 Difference]: With dead ends: 19 [2025-02-06 13:27:28,842 INFO L226 Difference]: Without dead ends: 12 [2025-02-06 13:27:28,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:27:28,848 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:28,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:27:28,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-02-06 13:27:28,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-02-06 13:27:28,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:28,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2025-02-06 13:27:28,874 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2025-02-06 13:27:28,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:28,874 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2025-02-06 13:27:28,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:28,874 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2025-02-06 13:27:28,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 13:27:28,874 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:28,874 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 13:27:28,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 13:27:28,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:28,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:28,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1418987992, now seen corresponding path program 1 times [2025-02-06 13:27:28,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:28,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549175505] [2025-02-06 13:27:28,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:27:28,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:28,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 13:27:28,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 13:27:28,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:28,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:28,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:27:28,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:28,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549175505] [2025-02-06 13:27:28,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549175505] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:27:28,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:27:28,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:27:28,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272719848] [2025-02-06 13:27:28,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:27:28,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:27:28,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:28,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:27:28,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:27:28,920 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:28,945 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2025-02-06 13:27:28,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:27:28,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-06 13:27:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:28,946 INFO L225 Difference]: With dead ends: 21 [2025-02-06 13:27:28,946 INFO L226 Difference]: Without dead ends: 12 [2025-02-06 13:27:28,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:27:28,946 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:28,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 7 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:27:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-02-06 13:27:28,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-02-06 13:27:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2025-02-06 13:27:28,950 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2025-02-06 13:27:28,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:28,950 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2025-02-06 13:27:28,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:28,950 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2025-02-06 13:27:28,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-06 13:27:28,950 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:28,950 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:27:28,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 13:27:28,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:28,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:28,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1038953932, now seen corresponding path program 1 times [2025-02-06 13:27:28,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:28,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656747009] [2025-02-06 13:27:28,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:27:28,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:28,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 13:27:28,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 13:27:28,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:28,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:27:29,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:29,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656747009] [2025-02-06 13:27:29,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656747009] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:27:29,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:27:29,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:27:29,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174754962] [2025-02-06 13:27:29,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:27:29,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:27:29,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:29,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:27:29,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:27:29,004 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:29,023 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2025-02-06 13:27:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:27:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-06 13:27:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:29,024 INFO L225 Difference]: With dead ends: 15 [2025-02-06 13:27:29,024 INFO L226 Difference]: Without dead ends: 14 [2025-02-06 13:27:29,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:27:29,025 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:29,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:27:29,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-02-06 13:27:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-02-06 13:27:29,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2025-02-06 13:27:29,028 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 7 [2025-02-06 13:27:29,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:29,028 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2025-02-06 13:27:29,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,028 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2025-02-06 13:27:29,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 13:27:29,029 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:29,029 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 13:27:29,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 13:27:29,029 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:29,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1942234303, now seen corresponding path program 1 times [2025-02-06 13:27:29,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:29,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457828371] [2025-02-06 13:27:29,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:27:29,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:29,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 13:27:29,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 13:27:29,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:29,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:27:29,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:29,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457828371] [2025-02-06 13:27:29,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457828371] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:29,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201734216] [2025-02-06 13:27:29,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:27:29,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:29,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:29,108 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) [2025-02-06 13:27:29,109 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 [2025-02-06 13:27:29,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 13:27:29,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 13:27:29,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:29,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:29,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:27:29,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:27:29,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:29,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:27:29,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201734216] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:29,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:29,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-02-06 13:27:29,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786560078] [2025-02-06 13:27:29,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:29,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 13:27:29,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:29,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 13:27:29,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:27:29,224 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:29,269 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2025-02-06 13:27:29,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:27:29,269 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-06 13:27:29,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:29,269 INFO L225 Difference]: With dead ends: 32 [2025-02-06 13:27:29,269 INFO L226 Difference]: Without dead ends: 21 [2025-02-06 13:27:29,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-02-06 13:27:29,270 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:29,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:27:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-02-06 13:27:29,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-02-06 13:27:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2025-02-06 13:27:29,280 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 10 [2025-02-06 13:27:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:29,280 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2025-02-06 13:27:29,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2025-02-06 13:27:29,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-02-06 13:27:29,280 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:29,280 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:27:29,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 13:27:29,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:29,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:29,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash 299247823, now seen corresponding path program 1 times [2025-02-06 13:27:29,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:29,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530523518] [2025-02-06 13:27:29,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:27:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:29,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 13:27:29,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 13:27:29,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:29,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:29,547 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:27:29,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:29,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530523518] [2025-02-06 13:27:29,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530523518] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:29,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711714750] [2025-02-06 13:27:29,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:27:29,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:29,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:29,555 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) [2025-02-06 13:27:29,556 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 [2025-02-06 13:27:29,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 13:27:29,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 13:27:29,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:29,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:29,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 13:27:29,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:27:29,638 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:29,706 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:27:29,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711714750] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:29,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:29,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2025-02-06 13:27:29,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608666841] [2025-02-06 13:27:29,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:29,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 13:27:29,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:29,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 13:27:29,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2025-02-06 13:27:29,708 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:29,912 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2025-02-06 13:27:29,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 13:27:29,912 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2025-02-06 13:27:29,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:29,913 INFO L225 Difference]: With dead ends: 67 [2025-02-06 13:27:29,913 INFO L226 Difference]: Without dead ends: 65 [2025-02-06 13:27:29,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2025-02-06 13:27:29,914 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 35 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:29,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 25 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:27:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2025-02-06 13:27:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 60. [2025-02-06 13:27:29,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 59 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2025-02-06 13:27:29,920 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 17 [2025-02-06 13:27:29,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:29,920 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2025-02-06 13:27:29,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 15 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:29,921 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2025-02-06 13:27:29,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-06 13:27:29,921 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:29,921 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:27:29,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 13:27:30,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:30,125 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:30,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:30,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1998803375, now seen corresponding path program 2 times [2025-02-06 13:27:30,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:30,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411818750] [2025-02-06 13:27:30,126 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:27:30,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:30,131 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-06 13:27:30,135 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 13:27:30,136 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:27:30,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 13:27:30,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:30,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411818750] [2025-02-06 13:27:30,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411818750] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:30,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947624806] [2025-02-06 13:27:30,228 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:27:30,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:30,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:30,230 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) [2025-02-06 13:27:30,235 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 [2025-02-06 13:27:30,252 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-06 13:27:30,257 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 13:27:30,257 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:27:30,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:30,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:27:30,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:27:30,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:27:30,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947624806] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:30,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:30,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2025-02-06 13:27:30,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888076324] [2025-02-06 13:27:30,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:30,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 13:27:30,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:30,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 13:27:30,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2025-02-06 13:27:30,461 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 19 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:30,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:30,964 INFO L93 Difference]: Finished difference Result 187 states and 246 transitions. [2025-02-06 13:27:30,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-02-06 13:27:30,966 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2025-02-06 13:27:30,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:30,967 INFO L225 Difference]: With dead ends: 187 [2025-02-06 13:27:30,967 INFO L226 Difference]: Without dead ends: 185 [2025-02-06 13:27:30,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2025-02-06 13:27:30,970 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 38 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:30,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 26 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 13:27:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2025-02-06 13:27:30,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 64. [2025-02-06 13:27:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2025-02-06 13:27:30,985 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 23 [2025-02-06 13:27:30,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:30,985 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2025-02-06 13:27:30,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2025-02-06 13:27:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-02-06 13:27:30,986 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:30,986 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 1, 1, 1, 1] [2025-02-06 13:27:30,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 13:27:31,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:31,187 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:31,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:31,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1085292735, now seen corresponding path program 3 times [2025-02-06 13:27:31,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:31,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926642657] [2025-02-06 13:27:31,187 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:27:31,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:31,193 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 38 statements into 8 equivalence classes. [2025-02-06 13:27:31,204 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 35 of 38 statements. [2025-02-06 13:27:31,204 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-02-06 13:27:31,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:27:31,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:31,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926642657] [2025-02-06 13:27:31,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926642657] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:31,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619818788] [2025-02-06 13:27:31,421 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:27:31,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:31,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:31,423 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) [2025-02-06 13:27:31,425 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 [2025-02-06 13:27:31,449 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 38 statements into 8 equivalence classes. [2025-02-06 13:27:31,458 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 35 of 38 statements. [2025-02-06 13:27:31,458 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-02-06 13:27:31,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:31,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 13:27:31,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:27:31,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:31,682 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:27:31,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619818788] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:31,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:31,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2025-02-06 13:27:31,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847106879] [2025-02-06 13:27:31,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:31,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 13:27:31,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:31,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 13:27:31,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2025-02-06 13:27:31,684 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand has 21 states, 20 states have (on average 4.05) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:32,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:32,287 INFO L93 Difference]: Finished difference Result 573 states and 696 transitions. [2025-02-06 13:27:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2025-02-06 13:27:32,287 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.05) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2025-02-06 13:27:32,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:32,292 INFO L225 Difference]: With dead ends: 573 [2025-02-06 13:27:32,293 INFO L226 Difference]: Without dead ends: 571 [2025-02-06 13:27:32,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=904, Invalid=2636, Unknown=0, NotChecked=0, Total=3540 [2025-02-06 13:27:32,297 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 48 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:32,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 28 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:27:32,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2025-02-06 13:27:32,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 348. [2025-02-06 13:27:32,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 346 states have (on average 1.2254335260115607) internal successors, (424), 347 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 424 transitions. [2025-02-06 13:27:32,347 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 424 transitions. Word has length 38 [2025-02-06 13:27:32,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:32,347 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 424 transitions. [2025-02-06 13:27:32,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.05) internal successors, (81), 21 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 424 transitions. [2025-02-06 13:27:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-02-06 13:27:32,349 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:32,349 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 5, 4, 4, 4, 1, 1, 1, 1] [2025-02-06 13:27:32,355 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 [2025-02-06 13:27:32,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-06 13:27:32,550 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:32,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:32,551 INFO L85 PathProgramCache]: Analyzing trace with hash -509102689, now seen corresponding path program 4 times [2025-02-06 13:27:32,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:32,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042239938] [2025-02-06 13:27:32,551 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:27:32,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:32,557 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-06 13:27:32,564 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 13:27:32,564 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:27:32,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:32,766 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 15 proven. 127 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 13:27:32,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:32,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042239938] [2025-02-06 13:27:32,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042239938] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:32,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893409220] [2025-02-06 13:27:32,767 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:27:32,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:32,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:32,769 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) [2025-02-06 13:27:32,771 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 [2025-02-06 13:27:32,793 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 44 statements into 2 equivalence classes. [2025-02-06 13:27:32,801 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 13:27:32,802 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:27:32,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:32,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 13:27:32,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 92 proven. 47 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 13:27:33,008 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 65 proven. 74 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 13:27:33,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893409220] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:33,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:33,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 35 [2025-02-06 13:27:33,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482808515] [2025-02-06 13:27:33,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:33,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-02-06 13:27:33,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:33,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-02-06 13:27:33,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1024, Unknown=0, NotChecked=0, Total=1190 [2025-02-06 13:27:33,229 INFO L87 Difference]: Start difference. First operand 348 states and 424 transitions. Second operand has 35 states, 35 states have (on average 3.2) internal successors, (112), 35 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:34,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:34,615 INFO L93 Difference]: Finished difference Result 860 states and 1057 transitions. [2025-02-06 13:27:34,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2025-02-06 13:27:34,615 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.2) internal successors, (112), 35 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2025-02-06 13:27:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:34,617 INFO L225 Difference]: With dead ends: 860 [2025-02-06 13:27:34,618 INFO L226 Difference]: Without dead ends: 530 [2025-02-06 13:27:34,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1241, Invalid=4921, Unknown=0, NotChecked=0, Total=6162 [2025-02-06 13:27:34,621 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 141 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:34,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 33 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 13:27:34,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2025-02-06 13:27:34,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 410. [2025-02-06 13:27:34,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 408 states have (on average 1.1740196078431373) internal successors, (479), 409 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 479 transitions. [2025-02-06 13:27:34,658 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 479 transitions. Word has length 44 [2025-02-06 13:27:34,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:34,659 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 479 transitions. [2025-02-06 13:27:34,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.2) internal successors, (112), 35 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 479 transitions. [2025-02-06 13:27:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 13:27:34,660 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:34,660 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 5, 4, 4, 4, 1, 1, 1, 1] [2025-02-06 13:27:34,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 13:27:34,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:34,864 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:34,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:34,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1820851713, now seen corresponding path program 5 times [2025-02-06 13:27:34,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:34,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660985948] [2025-02-06 13:27:34,865 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:27:34,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:34,869 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 50 statements into 10 equivalence classes. [2025-02-06 13:27:34,872 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 17 of 50 statements. [2025-02-06 13:27:34,872 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-02-06 13:27:34,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 131 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-06 13:27:34,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:34,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660985948] [2025-02-06 13:27:34,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660985948] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:34,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999483126] [2025-02-06 13:27:34,926 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:27:34,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:34,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:34,928 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) [2025-02-06 13:27:34,936 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 [2025-02-06 13:27:34,954 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 50 statements into 10 equivalence classes. [2025-02-06 13:27:34,958 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 17 of 50 statements. [2025-02-06 13:27:34,958 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-02-06 13:27:34,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:34,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:27:34,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 134 proven. 13 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-06 13:27:34,994 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 131 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-02-06 13:27:35,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999483126] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:35,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:35,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2025-02-06 13:27:35,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609555922] [2025-02-06 13:27:35,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:35,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 13:27:35,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:35,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 13:27:35,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-02-06 13:27:35,059 INFO L87 Difference]: Start difference. First operand 410 states and 479 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:35,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:35,215 INFO L93 Difference]: Finished difference Result 747 states and 876 transitions. [2025-02-06 13:27:35,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 13:27:35,215 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-02-06 13:27:35,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:35,217 INFO L225 Difference]: With dead ends: 747 [2025-02-06 13:27:35,217 INFO L226 Difference]: Without dead ends: 408 [2025-02-06 13:27:35,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2025-02-06 13:27:35,219 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 19 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:35,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 23 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:27:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2025-02-06 13:27:35,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 400. [2025-02-06 13:27:35,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 398 states have (on average 1.1130653266331658) internal successors, (443), 399 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 443 transitions. [2025-02-06 13:27:35,254 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 443 transitions. Word has length 50 [2025-02-06 13:27:35,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:35,254 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 443 transitions. [2025-02-06 13:27:35,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:35,255 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 443 transitions. [2025-02-06 13:27:35,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 13:27:35,256 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:35,256 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 5, 4, 4, 4, 1, 1, 1, 1] [2025-02-06 13:27:35,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 13:27:35,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-02-06 13:27:35,457 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:35,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:35,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1607003675, now seen corresponding path program 6 times [2025-02-06 13:27:35,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:35,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521136154] [2025-02-06 13:27:35,457 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 13:27:35,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:35,469 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 50 statements into 9 equivalence classes. [2025-02-06 13:27:35,484 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 43 of 50 statements. [2025-02-06 13:27:35,488 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-02-06 13:27:35,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:35,631 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-06 13:27:35,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521136154] [2025-02-06 13:27:35,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521136154] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854480191] [2025-02-06 13:27:35,631 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 13:27:35,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:35,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:35,633 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) [2025-02-06 13:27:35,640 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 [2025-02-06 13:27:35,658 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 50 statements into 9 equivalence classes. [2025-02-06 13:27:35,667 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 43 of 50 statements. [2025-02-06 13:27:35,667 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-02-06 13:27:35,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:35,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 13:27:35,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 40 proven. 146 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-06 13:27:35,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 4 proven. 182 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-06 13:27:35,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854480191] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:35,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:35,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2025-02-06 13:27:35,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341000404] [2025-02-06 13:27:35,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:35,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-06 13:27:35,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:35,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-06 13:27:35,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2025-02-06 13:27:35,955 INFO L87 Difference]: Start difference. First operand 400 states and 443 transitions. Second operand has 28 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 28 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:37,111 INFO L93 Difference]: Finished difference Result 860 states and 1091 transitions. [2025-02-06 13:27:37,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2025-02-06 13:27:37,112 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 28 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-02-06 13:27:37,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:37,114 INFO L225 Difference]: With dead ends: 860 [2025-02-06 13:27:37,115 INFO L226 Difference]: Without dead ends: 858 [2025-02-06 13:27:37,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2688 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1746, Invalid=6264, Unknown=0, NotChecked=0, Total=8010 [2025-02-06 13:27:37,117 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:37,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 50 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 13:27:37,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2025-02-06 13:27:37,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 739. [2025-02-06 13:27:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 737 states have (on average 1.1668928086838535) internal successors, (860), 738 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 860 transitions. [2025-02-06 13:27:37,174 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 860 transitions. Word has length 50 [2025-02-06 13:27:37,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:37,175 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 860 transitions. [2025-02-06 13:27:37,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.7037037037037037) internal successors, (100), 28 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 860 transitions. [2025-02-06 13:27:37,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-06 13:27:37,176 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:37,176 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 7, 6, 6, 6, 1, 1, 1, 1] [2025-02-06 13:27:37,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 13:27:37,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:37,377 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:37,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:37,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1325914221, now seen corresponding path program 7 times [2025-02-06 13:27:37,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:37,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418594939] [2025-02-06 13:27:37,378 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 13:27:37,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:37,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 13:27:37,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 13:27:37,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:37,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 78 proven. 326 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-02-06 13:27:37,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:37,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418594939] [2025-02-06 13:27:37,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418594939] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:37,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504176891] [2025-02-06 13:27:37,585 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 13:27:37,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:37,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:37,587 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) [2025-02-06 13:27:37,588 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 [2025-02-06 13:27:37,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 13:27:37,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 13:27:37,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:27:37,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:37,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-06 13:27:37,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:37,896 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 103 proven. 301 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-02-06 13:27:37,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 78 proven. 326 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-02-06 13:27:38,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504176891] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:38,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:38,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 36 [2025-02-06 13:27:38,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507409314] [2025-02-06 13:27:38,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:38,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-02-06 13:27:38,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:38,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-02-06 13:27:38,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1071, Unknown=0, NotChecked=0, Total=1260 [2025-02-06 13:27:38,106 INFO L87 Difference]: Start difference. First operand 739 states and 860 transitions. Second operand has 36 states, 36 states have (on average 3.8055555555555554) internal successors, (137), 36 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:39,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:39,278 INFO L93 Difference]: Finished difference Result 1295 states and 1534 transitions. [2025-02-06 13:27:39,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-02-06 13:27:39,278 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.8055555555555554) internal successors, (137), 36 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2025-02-06 13:27:39,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:39,281 INFO L225 Difference]: With dead ends: 1295 [2025-02-06 13:27:39,281 INFO L226 Difference]: Without dead ends: 853 [2025-02-06 13:27:39,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 115 SyntacticMatches, 5 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1840 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1436, Invalid=5704, Unknown=0, NotChecked=0, Total=7140 [2025-02-06 13:27:39,283 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 77 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:39,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 22 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 13:27:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2025-02-06 13:27:39,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 841. [2025-02-06 13:27:39,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 839 states have (on average 1.1513706793802145) internal successors, (966), 840 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:39,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 966 transitions. [2025-02-06 13:27:39,330 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 966 transitions. Word has length 70 [2025-02-06 13:27:39,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:39,330 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 966 transitions. [2025-02-06 13:27:39,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.8055555555555554) internal successors, (137), 36 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 966 transitions. [2025-02-06 13:27:39,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-06 13:27:39,332 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:39,332 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 1, 1, 1, 1] [2025-02-06 13:27:39,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 13:27:39,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:39,536 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:39,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1411470657, now seen corresponding path program 8 times [2025-02-06 13:27:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:39,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156219305] [2025-02-06 13:27:39,536 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:27:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:39,541 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 80 statements into 2 equivalence classes. [2025-02-06 13:27:39,546 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 13:27:39,546 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:27:39,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 13:27:39,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:39,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156219305] [2025-02-06 13:27:39,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156219305] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:39,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337805236] [2025-02-06 13:27:39,739 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:27:39,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:39,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:39,745 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) [2025-02-06 13:27:39,746 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 [2025-02-06 13:27:39,766 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 80 statements into 2 equivalence classes. [2025-02-06 13:27:39,778 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 13:27:39,778 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:27:39,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:39,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-06 13:27:39,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:39,877 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 13:27:39,877 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 498 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 13:27:40,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337805236] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:40,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:40,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 32 [2025-02-06 13:27:40,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763995424] [2025-02-06 13:27:40,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:40,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-02-06 13:27:40,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:40,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-02-06 13:27:40,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=726, Unknown=0, NotChecked=0, Total=1056 [2025-02-06 13:27:40,176 INFO L87 Difference]: Start difference. First operand 841 states and 966 transitions. Second operand has 33 states, 32 states have (on average 5.15625) internal successors, (165), 33 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:41,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:41,867 INFO L93 Difference]: Finished difference Result 2887 states and 3513 transitions. [2025-02-06 13:27:41,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2025-02-06 13:27:41,867 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.15625) internal successors, (165), 33 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2025-02-06 13:27:41,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:41,876 INFO L225 Difference]: With dead ends: 2887 [2025-02-06 13:27:41,876 INFO L226 Difference]: Without dead ends: 2885 [2025-02-06 13:27:41,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5686 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=4096, Invalid=11654, Unknown=0, NotChecked=0, Total=15750 [2025-02-06 13:27:41,882 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 82 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:41,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 13:27:41,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2025-02-06 13:27:42,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 2740. [2025-02-06 13:27:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 2738 states have (on average 1.1614317019722424) internal successors, (3180), 2739 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 3180 transitions. [2025-02-06 13:27:42,047 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 3180 transitions. Word has length 80 [2025-02-06 13:27:42,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:42,047 INFO L471 AbstractCegarLoop]: Abstraction has 2740 states and 3180 transitions. [2025-02-06 13:27:42,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.15625) internal successors, (165), 33 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:42,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 3180 transitions. [2025-02-06 13:27:42,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-02-06 13:27:42,048 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:42,048 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 16, 12, 11, 11, 11, 1, 1, 1, 1] [2025-02-06 13:27:42,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 13:27:42,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:42,253 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:42,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1679821373, now seen corresponding path program 9 times [2025-02-06 13:27:42,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:42,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020847143] [2025-02-06 13:27:42,253 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:27:42,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:42,259 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 99 statements into 19 equivalence classes. [2025-02-06 13:27:42,269 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 67 of 99 statements. [2025-02-06 13:27:42,269 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-02-06 13:27:42,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:42,420 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 424 proven. 184 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2025-02-06 13:27:42,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:42,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020847143] [2025-02-06 13:27:42,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020847143] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:42,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767936372] [2025-02-06 13:27:42,420 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:27:42,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:42,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:42,422 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) [2025-02-06 13:27:42,423 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 [2025-02-06 13:27:42,448 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 99 statements into 19 equivalence classes. [2025-02-06 13:27:42,462 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 67 of 99 statements. [2025-02-06 13:27:42,463 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-02-06 13:27:42,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:42,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 13:27:42,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 424 proven. 184 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2025-02-06 13:27:42,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 424 proven. 184 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2025-02-06 13:27:42,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767936372] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:42,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:42,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2025-02-06 13:27:42,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119234235] [2025-02-06 13:27:42,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:42,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-06 13:27:42,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:42,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-06 13:27:42,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2025-02-06 13:27:42,819 INFO L87 Difference]: Start difference. First operand 2740 states and 3180 transitions. Second operand has 27 states, 26 states have (on average 3.576923076923077) internal successors, (93), 27 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:44,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:44,017 INFO L93 Difference]: Finished difference Result 3499 states and 4080 transitions. [2025-02-06 13:27:44,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-02-06 13:27:44,018 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.576923076923077) internal successors, (93), 27 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2025-02-06 13:27:44,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:44,027 INFO L225 Difference]: With dead ends: 3499 [2025-02-06 13:27:44,027 INFO L226 Difference]: Without dead ends: 3498 [2025-02-06 13:27:44,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1605 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1112, Invalid=4438, Unknown=0, NotChecked=0, Total=5550 [2025-02-06 13:27:44,029 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 83 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:44,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 21 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 13:27:44,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3498 states. [2025-02-06 13:27:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3498 to 2874. [2025-02-06 13:27:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2872 states have (on average 1.1337047353760445) internal successors, (3256), 2873 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:44,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 3256 transitions. [2025-02-06 13:27:44,258 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 3256 transitions. Word has length 99 [2025-02-06 13:27:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:44,258 INFO L471 AbstractCegarLoop]: Abstraction has 2874 states and 3256 transitions. [2025-02-06 13:27:44,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.576923076923077) internal successors, (93), 27 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 3256 transitions. [2025-02-06 13:27:44,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-02-06 13:27:44,261 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:44,261 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 25, 13, 12, 12, 12, 1, 1, 1, 1] [2025-02-06 13:27:44,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 13:27:44,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-06 13:27:44,462 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:44,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:44,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1501839361, now seen corresponding path program 10 times [2025-02-06 13:27:44,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:44,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168094648] [2025-02-06 13:27:44,463 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:27:44,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:44,467 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 130 statements into 2 equivalence classes. [2025-02-06 13:27:44,476 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-02-06 13:27:44,476 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:27:44,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 734 proven. 142 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2025-02-06 13:27:44,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:44,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168094648] [2025-02-06 13:27:44,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168094648] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:44,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278967437] [2025-02-06 13:27:44,666 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:27:44,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:44,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:44,669 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) [2025-02-06 13:27:44,672 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 [2025-02-06 13:27:44,693 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 130 statements into 2 equivalence classes. [2025-02-06 13:27:44,714 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-02-06 13:27:44,714 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:27:44,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:44,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 13:27:44,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:45,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 854 proven. 251 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2025-02-06 13:27:45,013 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:45,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 851 proven. 254 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2025-02-06 13:27:45,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278967437] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:45,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:45,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 37 [2025-02-06 13:27:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855219452] [2025-02-06 13:27:45,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:45,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-02-06 13:27:45,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:45,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-02-06 13:27:45,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1198, Unknown=0, NotChecked=0, Total=1332 [2025-02-06 13:27:45,275 INFO L87 Difference]: Start difference. First operand 2874 states and 3256 transitions. Second operand has 37 states, 37 states have (on average 3.810810810810811) internal successors, (141), 37 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:27:49,285 INFO L93 Difference]: Finished difference Result 8241 states and 9626 transitions. [2025-02-06 13:27:49,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2025-02-06 13:27:49,285 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.810810810810811) internal successors, (141), 37 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2025-02-06 13:27:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:27:49,301 INFO L225 Difference]: With dead ends: 8241 [2025-02-06 13:27:49,301 INFO L226 Difference]: Without dead ends: 6709 [2025-02-06 13:27:49,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 235 SyntacticMatches, 4 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7574 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3174, Invalid=19778, Unknown=0, NotChecked=0, Total=22952 [2025-02-06 13:27:49,307 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 398 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 13:27:49,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 32 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 13:27:49,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6709 states. [2025-02-06 13:27:49,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6709 to 5936. [2025-02-06 13:27:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5936 states, 5934 states have (on average 1.1248736097067744) internal successors, (6675), 5935 states have internal predecessors, (6675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:49,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5936 states to 5936 states and 6675 transitions. [2025-02-06 13:27:49,771 INFO L78 Accepts]: Start accepts. Automaton has 5936 states and 6675 transitions. Word has length 130 [2025-02-06 13:27:49,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:27:49,771 INFO L471 AbstractCegarLoop]: Abstraction has 5936 states and 6675 transitions. [2025-02-06 13:27:49,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.810810810810811) internal successors, (141), 37 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:27:49,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5936 states and 6675 transitions. [2025-02-06 13:27:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-02-06 13:27:49,775 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:27:49,775 INFO L218 NwaCegarLoop]: trace histogram [29, 29, 28, 14, 13, 13, 13, 1, 1, 1, 1] [2025-02-06 13:27:49,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 13:27:49,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-06 13:27:49,976 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:27:49,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:27:49,976 INFO L85 PathProgramCache]: Analyzing trace with hash -392820265, now seen corresponding path program 11 times [2025-02-06 13:27:49,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:27:49,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326232957] [2025-02-06 13:27:49,976 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:27:49,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:27:49,981 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 143 statements into 24 equivalence classes. [2025-02-06 13:27:49,995 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) and asserted 143 of 143 statements. [2025-02-06 13:27:49,996 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2025-02-06 13:27:49,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 472 proven. 1356 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-02-06 13:27:50,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:27:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326232957] [2025-02-06 13:27:50,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326232957] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:27:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723876935] [2025-02-06 13:27:50,315 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:27:50,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:27:50,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:27:50,320 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) [2025-02-06 13:27:50,322 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 [2025-02-06 13:27:50,351 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 143 statements into 24 equivalence classes. [2025-02-06 13:27:50,382 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) and asserted 143 of 143 statements. [2025-02-06 13:27:50,382 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2025-02-06 13:27:50,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:27:50,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 13:27:50,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:27:50,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 1141 proven. 553 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2025-02-06 13:27:50,869 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:27:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1920 backedges. 1132 proven. 562 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2025-02-06 13:27:51,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723876935] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:27:51,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:27:51,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 52 [2025-02-06 13:27:51,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783363815] [2025-02-06 13:27:51,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:27:51,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2025-02-06 13:27:51,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:27:51,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2025-02-06 13:27:51,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2336, Unknown=0, NotChecked=0, Total=2652 [2025-02-06 13:27:51,303 INFO L87 Difference]: Start difference. First operand 5936 states and 6675 transitions. Second operand has 52 states, 52 states have (on average 4.884615384615385) internal successors, (254), 52 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:03,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:28:03,517 INFO L93 Difference]: Finished difference Result 9039 states and 10415 transitions. [2025-02-06 13:28:03,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 396 states. [2025-02-06 13:28:03,518 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.884615384615385) internal successors, (254), 52 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2025-02-06 13:28:03,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:28:03,559 INFO L225 Difference]: With dead ends: 9039 [2025-02-06 13:28:03,562 INFO L226 Difference]: Without dead ends: 6661 [2025-02-06 13:28:03,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 251 SyntacticMatches, 3 SemanticMatches, 425 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77152 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=19340, Invalid=162562, Unknown=0, NotChecked=0, Total=181902 [2025-02-06 13:28:03,590 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 897 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2526 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 2526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:28:03,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 32 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 2526 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 13:28:03,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2025-02-06 13:28:04,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 5802. [2025-02-06 13:28:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 5800 states have (on average 1.1237931034482758) internal successors, (6518), 5801 states have internal predecessors, (6518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 6518 transitions. [2025-02-06 13:28:04,171 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 6518 transitions. Word has length 143 [2025-02-06 13:28:04,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:28:04,172 INFO L471 AbstractCegarLoop]: Abstraction has 5802 states and 6518 transitions. [2025-02-06 13:28:04,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.884615384615385) internal successors, (254), 52 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:04,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 6518 transitions. [2025-02-06 13:28:04,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-02-06 13:28:04,176 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:28:04,176 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 27, 17, 16, 16, 16, 1, 1, 1, 1] [2025-02-06 13:28:04,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 13:28:04,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:28:04,378 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:28:04,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:28:04,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1277286561, now seen corresponding path program 12 times [2025-02-06 13:28:04,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:28:04,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527706840] [2025-02-06 13:28:04,379 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 13:28:04,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:28:04,385 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 152 statements into 29 equivalence classes. [2025-02-06 13:28:04,406 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) and asserted 145 of 152 statements. [2025-02-06 13:28:04,407 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2025-02-06 13:28:04,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:28:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 838 proven. 1048 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-02-06 13:28:04,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:28:04,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527706840] [2025-02-06 13:28:04,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527706840] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:28:04,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120214707] [2025-02-06 13:28:04,810 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 13:28:04,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:28:04,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:28:04,815 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) [2025-02-06 13:28:04,817 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 [2025-02-06 13:28:04,845 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 152 statements into 29 equivalence classes. [2025-02-06 13:28:04,881 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) and asserted 145 of 152 statements. [2025-02-06 13:28:04,881 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2025-02-06 13:28:04,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:28:04,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 13:28:04,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:28:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 636 proven. 1333 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-02-06 13:28:05,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:28:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 636 proven. 1333 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-02-06 13:28:05,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120214707] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:28:05,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:28:05,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 20] total 43 [2025-02-06 13:28:05,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470860552] [2025-02-06 13:28:05,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:28:05,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2025-02-06 13:28:05,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:28:05,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2025-02-06 13:28:05,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=1417, Unknown=0, NotChecked=0, Total=1892 [2025-02-06 13:28:05,794 INFO L87 Difference]: Start difference. First operand 5802 states and 6518 transitions. Second operand has 44 states, 43 states have (on average 4.837209302325581) internal successors, (208), 44 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:11,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:28:11,293 INFO L93 Difference]: Finished difference Result 9865 states and 11488 transitions. [2025-02-06 13:28:11,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2025-02-06 13:28:11,293 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.837209302325581) internal successors, (208), 44 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2025-02-06 13:28:11,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:28:11,315 INFO L225 Difference]: With dead ends: 9865 [2025-02-06 13:28:11,316 INFO L226 Difference]: Without dead ends: 9864 [2025-02-06 13:28:11,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13574 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=7658, Invalid=30562, Unknown=0, NotChecked=0, Total=38220 [2025-02-06 13:28:11,319 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 195 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 13:28:11,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 16 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 13:28:11,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9864 states. [2025-02-06 13:28:12,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9864 to 7437. [2025-02-06 13:28:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7437 states, 7435 states have (on average 1.1175521183591124) internal successors, (8309), 7436 states have internal predecessors, (8309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7437 states to 7437 states and 8309 transitions. [2025-02-06 13:28:12,069 INFO L78 Accepts]: Start accepts. Automaton has 7437 states and 8309 transitions. Word has length 152 [2025-02-06 13:28:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:28:12,069 INFO L471 AbstractCegarLoop]: Abstraction has 7437 states and 8309 transitions. [2025-02-06 13:28:12,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.837209302325581) internal successors, (208), 44 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 7437 states and 8309 transitions. [2025-02-06 13:28:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-02-06 13:28:12,074 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:28:12,074 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 23, 23, 22, 22, 22, 1, 1, 1, 1] [2025-02-06 13:28:12,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-06 13:28:12,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:28:12,275 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:28:12,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:28:12,275 INFO L85 PathProgramCache]: Analyzing trace with hash -756154689, now seen corresponding path program 13 times [2025-02-06 13:28:12,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:28:12,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494671181] [2025-02-06 13:28:12,275 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 13:28:12,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:28:12,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-06 13:28:12,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-06 13:28:12,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:28:12,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:28:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 13:28:12,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:28:12,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494671181] [2025-02-06 13:28:12,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494671181] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:28:12,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343453461] [2025-02-06 13:28:12,718 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 13:28:12,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:28:12,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:28:12,721 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) [2025-02-06 13:28:12,722 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 [2025-02-06 13:28:12,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-06 13:28:12,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-06 13:28:12,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:28:12,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:28:12,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-02-06 13:28:12,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:28:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 13:28:12,948 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:28:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2302 backedges. 0 proven. 2280 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 13:28:13,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343453461] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:28:13,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:28:13,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 56 [2025-02-06 13:28:13,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410396250] [2025-02-06 13:28:13,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:28:13,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2025-02-06 13:28:13,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:28:13,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2025-02-06 13:28:13,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1206, Invalid=1986, Unknown=0, NotChecked=0, Total=3192 [2025-02-06 13:28:13,616 INFO L87 Difference]: Start difference. First operand 7437 states and 8309 transitions. Second operand has 57 states, 56 states have (on average 5.946428571428571) internal successors, (333), 57 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:21,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:28:21,292 INFO L93 Difference]: Finished difference Result 32677 states and 39766 transitions. [2025-02-06 13:28:21,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2025-02-06 13:28:21,292 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 5.946428571428571) internal successors, (333), 57 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2025-02-06 13:28:21,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:28:21,348 INFO L225 Difference]: With dead ends: 32677 [2025-02-06 13:28:21,348 INFO L226 Difference]: Without dead ends: 32675 [2025-02-06 13:28:21,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25792 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=17392, Invalid=48914, Unknown=0, NotChecked=0, Total=66306 [2025-02-06 13:28:21,356 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 172 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 13:28:21,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 56 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 13:28:21,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32675 states. [2025-02-06 13:28:24,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32675 to 31786. [2025-02-06 13:28:24,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31786 states, 31784 states have (on average 1.126132645356154) internal successors, (35793), 31785 states have internal predecessors, (35793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31786 states to 31786 states and 35793 transitions. [2025-02-06 13:28:24,608 INFO L78 Accepts]: Start accepts. Automaton has 31786 states and 35793 transitions. Word has length 164 [2025-02-06 13:28:24,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:28:24,613 INFO L471 AbstractCegarLoop]: Abstraction has 31786 states and 35793 transitions. [2025-02-06 13:28:24,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 5.946428571428571) internal successors, (333), 57 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 31786 states and 35793 transitions. [2025-02-06 13:28:24,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2025-02-06 13:28:24,664 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:28:24,664 INFO L218 NwaCegarLoop]: trace histogram [60, 60, 59, 33, 32, 32, 32, 1, 1, 1, 1] [2025-02-06 13:28:24,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 13:28:24,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-06 13:28:24,865 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:28:24,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:28:24,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1188213873, now seen corresponding path program 14 times [2025-02-06 13:28:24,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:28:24,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080899882] [2025-02-06 13:28:24,866 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:28:24,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:28:24,875 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 312 statements into 2 equivalence classes. [2025-02-06 13:28:24,930 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 312 of 312 statements. [2025-02-06 13:28:24,930 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:28:24,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:28:25,312 INFO L134 CoverageAnalysis]: Checked inductivity of 9246 backedges. 0 proven. 3359 refuted. 0 times theorem prover too weak. 5887 trivial. 0 not checked. [2025-02-06 13:28:25,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:28:25,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080899882] [2025-02-06 13:28:25,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080899882] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:28:25,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39748862] [2025-02-06 13:28:25,312 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:28:25,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:28:25,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:28:25,318 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) [2025-02-06 13:28:25,319 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 [2025-02-06 13:28:25,346 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 312 statements into 2 equivalence classes. [2025-02-06 13:28:25,391 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 312 of 312 statements. [2025-02-06 13:28:25,391 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:28:25,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:28:25,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 13:28:25,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:28:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 9246 backedges. 4918 proven. 1069 refuted. 0 times theorem prover too weak. 3259 trivial. 0 not checked. [2025-02-06 13:28:25,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:28:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9246 backedges. 4907 proven. 1080 refuted. 0 times theorem prover too weak. 3259 trivial. 0 not checked. [2025-02-06 13:28:26,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39748862] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:28:26,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:28:26,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23, 23] total 42 [2025-02-06 13:28:26,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698638569] [2025-02-06 13:28:26,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:28:26,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-02-06 13:28:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:28:26,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-02-06 13:28:26,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=1453, Unknown=0, NotChecked=0, Total=1722 [2025-02-06 13:28:26,246 INFO L87 Difference]: Start difference. First operand 31786 states and 35793 transitions. Second operand has 42 states, 42 states have (on average 4.809523809523809) internal successors, (202), 42 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:28:36,037 INFO L93 Difference]: Finished difference Result 33662 states and 38003 transitions. [2025-02-06 13:28:36,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 268 states. [2025-02-06 13:28:36,038 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.809523809523809) internal successors, (202), 42 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2025-02-06 13:28:36,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:28:36,098 INFO L225 Difference]: With dead ends: 33662 [2025-02-06 13:28:36,099 INFO L226 Difference]: Without dead ends: 31695 [2025-02-06 13:28:36,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 881 GetRequests, 589 SyntacticMatches, 8 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32517 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=11381, Invalid=70129, Unknown=0, NotChecked=0, Total=81510 [2025-02-06 13:28:36,115 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 172 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 13:28:36,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 34 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 13:28:36,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31695 states. [2025-02-06 13:28:38,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31695 to 31215. [2025-02-06 13:28:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31215 states, 31213 states have (on average 1.1251401659564926) internal successors, (35119), 31214 states have internal predecessors, (35119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:39,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31215 states to 31215 states and 35119 transitions. [2025-02-06 13:28:39,014 INFO L78 Accepts]: Start accepts. Automaton has 31215 states and 35119 transitions. Word has length 312 [2025-02-06 13:28:39,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:28:39,015 INFO L471 AbstractCegarLoop]: Abstraction has 31215 states and 35119 transitions. [2025-02-06 13:28:39,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.809523809523809) internal successors, (202), 42 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:28:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 31215 states and 35119 transitions. [2025-02-06 13:28:39,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2025-02-06 13:28:39,037 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:28:39,037 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 60, 34, 33, 33, 33, 1, 1, 1, 1] [2025-02-06 13:28:39,043 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 [2025-02-06 13:28:39,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-06 13:28:39,241 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-06 13:28:39,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:28:39,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1618877569, now seen corresponding path program 15 times [2025-02-06 13:28:39,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:28:39,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31439909] [2025-02-06 13:28:39,242 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:28:39,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:28:39,251 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 319 statements into 60 equivalence classes. [2025-02-06 13:28:39,291 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) and asserted 310 of 319 statements. [2025-02-06 13:28:39,291 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2025-02-06 13:28:39,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:28:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 9648 backedges. 0 proven. 9515 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-02-06 13:28:40,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:28:40,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31439909] [2025-02-06 13:28:40,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31439909] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:28:40,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97445194] [2025-02-06 13:28:40,538 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:28:40,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:28:40,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:28:40,542 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) [2025-02-06 13:28:40,547 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 [2025-02-06 13:28:40,588 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 319 statements into 60 equivalence classes. [2025-02-06 13:28:40,668 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) and asserted 310 of 319 statements. [2025-02-06 13:28:40,668 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2025-02-06 13:28:40,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:28:40,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-02-06 13:28:40,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:28:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 9648 backedges. 0 proven. 9515 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-02-06 13:28:41,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:28:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 9648 backedges. 0 proven. 9515 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-02-06 13:28:42,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97445194] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:28:42,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:28:42,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39, 39] total 81 [2025-02-06 13:28:42,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251232548] [2025-02-06 13:28:42,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:28:42,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2025-02-06 13:28:42,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:28:42,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2025-02-06 13:28:42,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2561, Invalid=4081, Unknown=0, NotChecked=0, Total=6642 [2025-02-06 13:28:42,629 INFO L87 Difference]: Start difference. First operand 31215 states and 35119 transitions. Second operand has 82 states, 81 states have (on average 6.1234567901234565) internal successors, (496), 82 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)