./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Collatz_bounded.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Collatz_bounded.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 fb8f212b8045dc9be8518316cbae752ce6111a4a93244dc89f86b0ea27a978ef --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:54:36,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:54:36,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-08 08:54:36,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:54:36,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:54:36,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:54:36,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:54:36,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:54:36,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:54:36,309 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:54:36,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:54:36,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:54:36,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:54:36,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:54:36,311 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:54:36,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:54:36,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 08:54:36,313 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:54:36,313 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:54:36,313 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:54:36,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:54:36,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:54:36,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:54:36,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:54:36,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:54:36,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:54:36,314 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 08:54:36,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 08:54:36,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:54:36,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:54:36,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:54:36,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:54:36,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:54:36,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:54:36,315 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 -> fb8f212b8045dc9be8518316cbae752ce6111a4a93244dc89f86b0ea27a978ef [2025-02-08 08:54:36,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:54:36,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:54:36,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:54:36,597 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:54:36,597 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:54:36,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Collatz_bounded.c [2025-02-08 08:54:37,931 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/200fb319d/20e09ad0188e48d5a0d18bef472a1d1f/FLAG147878349 [2025-02-08 08:54:38,194 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:54:38,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted/Collatz_bounded.c [2025-02-08 08:54:38,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/200fb319d/20e09ad0188e48d5a0d18bef472a1d1f/FLAG147878349 [2025-02-08 08:54:38,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/200fb319d/20e09ad0188e48d5a0d18bef472a1d1f [2025-02-08 08:54:38,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:54:38,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:54:38,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:54:38,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:54:38,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:54:38,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ac365a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38, skipping insertion in model container [2025-02-08 08:54:38,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:54:38,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:54:38,371 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:54:38,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:54:38,398 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:54:38,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38 WrapperNode [2025-02-08 08:54:38,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:54:38,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:54:38,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:54:38,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:54:38,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,424 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2025-02-08 08:54:38,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:54:38,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:54:38,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:54:38,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:54:38,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,433 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,442 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 08:54:38,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,443 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:54:38,447 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:54:38,447 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:54:38,448 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:54:38,449 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (1/1) ... [2025-02-08 08:54:38,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:54:38,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:54:38,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:54:38,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:54:38,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:54:38,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:54:38,542 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:54:38,544 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:54:38,703 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-02-08 08:54:38,703 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:54:38,713 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:54:38,714 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:54:38,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:54:38 BoogieIcfgContainer [2025-02-08 08:54:38,714 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:54:38,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:54:38,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:54:38,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:54:38,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:54:38" (1/3) ... [2025-02-08 08:54:38,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27382ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:54:38, skipping insertion in model container [2025-02-08 08:54:38,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:54:38" (2/3) ... [2025-02-08 08:54:38,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27382ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:54:38, skipping insertion in model container [2025-02-08 08:54:38,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:54:38" (3/3) ... [2025-02-08 08:54:38,724 INFO L128 eAbstractionObserver]: Analyzing ICFG Collatz_bounded.c [2025-02-08 08:54:38,742 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:54:38,743 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Collatz_bounded.c that has 1 procedures, 19 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2025-02-08 08:54:38,797 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:54:38,810 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;@1c9dbdc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:54:38,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-08 08:54:38,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:38,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-08 08:54:38,819 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:54:38,820 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 08:54:38,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:54:38,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:54:38,826 INFO L85 PathProgramCache]: Analyzing trace with hash 46727110, now seen corresponding path program 1 times [2025-02-08 08:54:38,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:54:38,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966906499] [2025-02-08 08:54:38,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:54:38,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:54:38,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 08:54:38,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 08:54:38,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:54:38,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:39,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:54:39,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966906499] [2025-02-08 08:54:39,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966906499] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:54:39,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:54:39,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:54:39,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077727383] [2025-02-08 08:54:39,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:54:39,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:54:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:54:39,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:54:39,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:54:39,078 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:39,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:54:39,131 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2025-02-08 08:54:39,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:54:39,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-02-08 08:54:39,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:54:39,138 INFO L225 Difference]: With dead ends: 22 [2025-02-08 08:54:39,139 INFO L226 Difference]: Without dead ends: 14 [2025-02-08 08:54:39,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:54:39,143 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:54:39,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:54:39,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-02-08 08:54:39,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2025-02-08 08:54:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-02-08 08:54:39,171 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2025-02-08 08:54:39,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:54:39,172 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-02-08 08:54:39,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:39,172 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-02-08 08:54:39,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-08 08:54:39,173 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:54:39,173 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:54:39,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:54:39,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:54:39,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:54:39,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1448540381, now seen corresponding path program 1 times [2025-02-08 08:54:39,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:54:39,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522017723] [2025-02-08 08:54:39,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:54:39,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:54:39,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:54:39,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:54:39,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:54:39,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:39,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:39,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:54:39,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522017723] [2025-02-08 08:54:39,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522017723] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:54:39,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:54:39,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:54:39,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775598357] [2025-02-08 08:54:39,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:54:39,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:54:39,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:54:39,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:54:39,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:54:39,409 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:39,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:54:39,516 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2025-02-08 08:54:39,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:54:39,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-08 08:54:39,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:54:39,517 INFO L225 Difference]: With dead ends: 25 [2025-02-08 08:54:39,517 INFO L226 Difference]: Without dead ends: 22 [2025-02-08 08:54:39,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:54:39,518 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:54:39,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:54:39,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-02-08 08:54:39,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2025-02-08 08:54:39,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2025-02-08 08:54:39,524 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6 [2025-02-08 08:54:39,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:54:39,524 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2025-02-08 08:54:39,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2025-02-08 08:54:39,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 08:54:39,525 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:54:39,525 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:54:39,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:54:39,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:54:39,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:54:39,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1009321864, now seen corresponding path program 1 times [2025-02-08 08:54:39,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:54:39,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636611384] [2025-02-08 08:54:39,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:54:39,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:54:39,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:54:39,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:54:39,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:54:39,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:39,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:54:39,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636611384] [2025-02-08 08:54:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636611384] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:54:39,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321598776] [2025-02-08 08:54:39,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:54:39,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:54:39,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:54:39,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:54:39,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 08:54:39,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:54:39,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:54:39,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:54:39,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:39,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:54:39,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:54:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:39,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:54:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:39,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321598776] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:54:39,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:54:39,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 7 [2025-02-08 08:54:39,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690313715] [2025-02-08 08:54:39,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:54:39,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:54:39,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:54:39,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:54:39,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:54:39,986 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:54:40,119 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2025-02-08 08:54:40,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:54:40,120 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-02-08 08:54:40,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:54:40,121 INFO L225 Difference]: With dead ends: 39 [2025-02-08 08:54:40,121 INFO L226 Difference]: Without dead ends: 36 [2025-02-08 08:54:40,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2025-02-08 08:54:40,122 INFO L435 NwaCegarLoop]: 1 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:54:40,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:54:40,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-02-08 08:54:40,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2025-02-08 08:54:40,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2025-02-08 08:54:40,127 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 12 [2025-02-08 08:54:40,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:54:40,127 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2025-02-08 08:54:40,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:40,128 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2025-02-08 08:54:40,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 08:54:40,128 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:54:40,128 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1] [2025-02-08 08:54:40,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:54:40,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:54:40,333 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:54:40,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:54:40,334 INFO L85 PathProgramCache]: Analyzing trace with hash 847355028, now seen corresponding path program 1 times [2025-02-08 08:54:40,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:54:40,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445336789] [2025-02-08 08:54:40,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:54:40,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:54:40,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:54:40,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:54:40,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:54:40,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:40,387 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:40,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:54:40,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445336789] [2025-02-08 08:54:40,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445336789] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:54:40,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414432487] [2025-02-08 08:54:40,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:54:40,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:54:40,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:54:40,390 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:54:40,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 08:54:40,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:54:40,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:54:40,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:54:40,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:40,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:54:40,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:54:40,461 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:40,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:54:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:40,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414432487] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:54:40,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:54:40,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-08 08:54:40,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066913118] [2025-02-08 08:54:40,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:54:40,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:54:40,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:54:40,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:54:40,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:54:40,526 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:40,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:54:40,632 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2025-02-08 08:54:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:54:40,632 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 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 18 [2025-02-08 08:54:40,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:54:40,633 INFO L225 Difference]: With dead ends: 59 [2025-02-08 08:54:40,633 INFO L226 Difference]: Without dead ends: 57 [2025-02-08 08:54:40,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:54:40,634 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:54:40,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:54:40,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2025-02-08 08:54:40,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2025-02-08 08:54:40,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:40,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2025-02-08 08:54:40,646 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 18 [2025-02-08 08:54:40,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:54:40,647 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2025-02-08 08:54:40,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:40,647 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2025-02-08 08:54:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-08 08:54:40,648 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:54:40,648 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1] [2025-02-08 08:54:40,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 08:54:40,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:54:40,849 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:54:40,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:54:40,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2085480576, now seen corresponding path program 2 times [2025-02-08 08:54:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:54:40,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180009868] [2025-02-08 08:54:40,851 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:54:40,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:54:40,861 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-02-08 08:54:40,876 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 08:54:40,876 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:54:40,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:41,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:54:41,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180009868] [2025-02-08 08:54:41,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180009868] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:54:41,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255352034] [2025-02-08 08:54:41,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:54:41,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:54:41,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:54:41,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:54:41,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 08:54:41,070 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-02-08 08:54:41,084 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 08:54:41,084 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:54:41,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:41,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:54:41,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:54:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:41,157 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:54:41,283 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:41,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255352034] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:54:41,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:54:41,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-02-08 08:54:41,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87604480] [2025-02-08 08:54:41,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:54:41,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 08:54:41,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:54:41,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 08:54:41,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2025-02-08 08:54:41,285 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 16 states, 15 states have (on average 5.533333333333333) internal successors, (83), 16 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:41,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:54:41,517 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2025-02-08 08:54:41,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 08:54:41,517 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.533333333333333) internal successors, (83), 16 states have internal predecessors, (83), 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 42 [2025-02-08 08:54:41,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:54:41,519 INFO L225 Difference]: With dead ends: 122 [2025-02-08 08:54:41,519 INFO L226 Difference]: Without dead ends: 121 [2025-02-08 08:54:41,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2025-02-08 08:54:41,520 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:54:41,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 3 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 08:54:41,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-02-08 08:54:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 107. [2025-02-08 08:54:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.150943396226415) internal successors, (122), 106 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2025-02-08 08:54:41,529 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 42 [2025-02-08 08:54:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:54:41,530 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2025-02-08 08:54:41,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.533333333333333) internal successors, (83), 16 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:41,531 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2025-02-08 08:54:41,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-02-08 08:54:41,532 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:54:41,532 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 1, 1, 1] [2025-02-08 08:54:41,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 08:54:41,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:54:41,737 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:54:41,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:54:41,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1968508042, now seen corresponding path program 3 times [2025-02-08 08:54:41,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:54:41,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914225652] [2025-02-08 08:54:41,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:54:41,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:54:41,745 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 54 statements into 9 equivalence classes. [2025-02-08 08:54:41,752 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 12 of 54 statements. [2025-02-08 08:54:41,753 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:54:41,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-02-08 08:54:41,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:54:41,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914225652] [2025-02-08 08:54:41,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914225652] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:54:41,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:54:41,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:54:41,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163585668] [2025-02-08 08:54:41,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:54:41,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:54:41,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:54:41,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:54:41,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:54:41,924 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:41,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:54:41,982 INFO L93 Difference]: Finished difference Result 210 states and 242 transitions. [2025-02-08 08:54:41,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:54:41,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2025-02-08 08:54:41,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:54:41,984 INFO L225 Difference]: With dead ends: 210 [2025-02-08 08:54:41,985 INFO L226 Difference]: Without dead ends: 117 [2025-02-08 08:54:41,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:54:41,987 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:54:41,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:54:41,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-02-08 08:54:42,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 99. [2025-02-08 08:54:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1122448979591837) internal successors, (109), 98 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:42,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 109 transitions. [2025-02-08 08:54:42,005 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 109 transitions. Word has length 54 [2025-02-08 08:54:42,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:54:42,005 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 109 transitions. [2025-02-08 08:54:42,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:42,005 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 109 transitions. [2025-02-08 08:54:42,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-08 08:54:42,007 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:54:42,008 INFO L218 NwaCegarLoop]: trace histogram [19, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1] [2025-02-08 08:54:42,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:54:42,008 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:54:42,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:54:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash -356546515, now seen corresponding path program 1 times [2025-02-08 08:54:42,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:54:42,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298575272] [2025-02-08 08:54:42,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:54:42,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:54:42,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 08:54:42,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 08:54:42,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:54:42,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 17 proven. 559 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:43,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:54:43,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298575272] [2025-02-08 08:54:43,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298575272] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:54:43,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355476137] [2025-02-08 08:54:43,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:54:43,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:54:43,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:54:43,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:54:43,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 08:54:43,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-08 08:54:43,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-08 08:54:43,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:54:43,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:43,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-02-08 08:54:43,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:54:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 17 proven. 559 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:44,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:54:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 34 proven. 542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:45,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355476137] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:54:45,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:54:45,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 29, 20] total 76 [2025-02-08 08:54:45,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182674013] [2025-02-08 08:54:45,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:54:45,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2025-02-08 08:54:45,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:54:45,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2025-02-08 08:54:45,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2473, Invalid=3379, Unknown=0, NotChecked=0, Total=5852 [2025-02-08 08:54:45,510 INFO L87 Difference]: Start difference. First operand 99 states and 109 transitions. Second operand has 77 states, 76 states have (on average 3.486842105263158) internal successors, (265), 77 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:46,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:54:46,396 INFO L93 Difference]: Finished difference Result 884 states and 1008 transitions. [2025-02-08 08:54:46,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-02-08 08:54:46,398 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 3.486842105263158) internal successors, (265), 77 states have internal predecessors, (265), 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 96 [2025-02-08 08:54:46,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:54:46,403 INFO L225 Difference]: With dead ends: 884 [2025-02-08 08:54:46,403 INFO L226 Difference]: Without dead ends: 883 [2025-02-08 08:54:46,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 146 SyntacticMatches, 7 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4290 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=3173, Invalid=4309, Unknown=0, NotChecked=0, Total=7482 [2025-02-08 08:54:46,408 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 250 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 08:54:46,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 3 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 08:54:46,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2025-02-08 08:54:46,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 257. [2025-02-08 08:54:46,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.1328125) internal successors, (290), 256 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 290 transitions. [2025-02-08 08:54:46,452 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 290 transitions. Word has length 96 [2025-02-08 08:54:46,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:54:46,452 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 290 transitions. [2025-02-08 08:54:46,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 3.486842105263158) internal successors, (265), 77 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:46,457 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 290 transitions. [2025-02-08 08:54:46,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2025-02-08 08:54:46,459 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:54:46,459 INFO L218 NwaCegarLoop]: trace histogram [41, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1] [2025-02-08 08:54:46,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 08:54:46,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-08 08:54:46,660 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:54:46,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:54:46,661 INFO L85 PathProgramCache]: Analyzing trace with hash -86992918, now seen corresponding path program 2 times [2025-02-08 08:54:46,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:54:46,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408074664] [2025-02-08 08:54:46,661 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:54:46,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:54:46,675 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 206 statements into 2 equivalence classes. [2025-02-08 08:54:46,878 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 206 of 206 statements. [2025-02-08 08:54:46,879 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:54:46,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 39 proven. 2781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:53,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:54:53,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408074664] [2025-02-08 08:54:53,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408074664] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:54:53,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368164424] [2025-02-08 08:54:53,106 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:54:53,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:54:53,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:54:53,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:54:53,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 08:54:53,142 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 206 statements into 2 equivalence classes. [2025-02-08 08:54:53,205 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 206 of 206 statements. [2025-02-08 08:54:53,206 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:54:53,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:54:53,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-02-08 08:54:53,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:54:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 39 proven. 2781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:54,802 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:54:56,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 78 proven. 2742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:54:56,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368164424] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:54:56,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:54:56,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 62, 42] total 169 [2025-02-08 08:54:56,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667497639] [2025-02-08 08:54:56,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:54:56,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 170 states [2025-02-08 08:54:56,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:54:56,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2025-02-08 08:54:56,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11349, Invalid=17381, Unknown=0, NotChecked=0, Total=28730 [2025-02-08 08:54:56,365 INFO L87 Difference]: Start difference. First operand 257 states and 290 transitions. Second operand has 170 states, 169 states have (on average 3.5207100591715976) internal successors, (595), 170 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:54:59,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:54:59,942 INFO L93 Difference]: Finished difference Result 6156 states and 6964 transitions. [2025-02-08 08:54:59,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2025-02-08 08:54:59,943 INFO L78 Accepts]: Start accepts. Automaton has has 170 states, 169 states have (on average 3.5207100591715976) internal successors, (595), 170 states have internal predecessors, (595), 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 206 [2025-02-08 08:54:59,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:54:59,969 INFO L225 Difference]: With dead ends: 6156 [2025-02-08 08:54:59,969 INFO L226 Difference]: Without dead ends: 6155 [2025-02-08 08:54:59,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 310 SyntacticMatches, 14 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30580 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=19974, Invalid=32696, Unknown=0, NotChecked=0, Total=52670 [2025-02-08 08:54:59,979 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 627 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-08 08:54:59,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 3 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-08 08:54:59,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2025-02-08 08:55:00,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 483. [2025-02-08 08:55:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.1224066390041494) internal successors, (541), 482 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:55:00,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 541 transitions. [2025-02-08 08:55:00,076 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 541 transitions. Word has length 206 [2025-02-08 08:55:00,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:00,076 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 541 transitions. [2025-02-08 08:55:00,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 170 states, 169 states have (on average 3.5207100591715976) internal successors, (595), 170 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:55:00,077 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 541 transitions. [2025-02-08 08:55:00,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-02-08 08:55:00,082 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:00,082 INFO L218 NwaCegarLoop]: trace histogram [45, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2025-02-08 08:55:00,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 08:55:00,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:55:00,283 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 08:55:00,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:00,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1318647512, now seen corresponding path program 3 times [2025-02-08 08:55:00,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:00,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792695722] [2025-02-08 08:55:00,283 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:55:00,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:00,292 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 226 statements into 30 equivalence classes. [2025-02-08 08:55:01,101 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) and asserted 226 of 226 statements. [2025-02-08 08:55:01,102 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2025-02-08 08:55:01,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat