./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/NonTerminationSimple4.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/NonTerminationSimple4.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 45cf92b0c6fea336569aa3c590b09eca22523fff4b1b234a5534ea2e1e74fe84 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:55:24,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:55:24,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-08 08:55:24,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:55:24,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:55:24,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:55:24,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:55:24,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:55:24,490 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:55:24,490 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:55:24,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:55:24,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:55:24,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:55:24,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:55:24,492 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:55:24,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:55:24,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 08:55:24,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:55:24,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:55:24,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 08:55:24,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:55:24,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 08:55:24,494 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 08:55:24,494 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:55:24,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 08:55:24,494 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:55:24,494 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:55:24,494 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:55:24,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:55:24,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:55:24,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:55:24,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:55:24,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:55:24,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:55:24,496 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 08:55:24,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 08:55:24,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:55:24,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:55:24,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:55:24,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:55:24,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:55:24,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:55:24,497 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 -> 45cf92b0c6fea336569aa3c590b09eca22523fff4b1b234a5534ea2e1e74fe84 [2025-02-08 08:55:24,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:55:24,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:55:24,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:55:24,789 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:55:24,789 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:55:24,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c [2025-02-08 08:55:26,051 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e34110f5/d65b7c88ec8048a1a6db114819fa44a3/FLAG8bc62b6ab [2025-02-08 08:55:26,289 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:55:26,290 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c [2025-02-08 08:55:26,294 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e34110f5/d65b7c88ec8048a1a6db114819fa44a3/FLAG8bc62b6ab [2025-02-08 08:55:26,620 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e34110f5/d65b7c88ec8048a1a6db114819fa44a3 [2025-02-08 08:55:26,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:55:26,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:55:26,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:55:26,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:55:26,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:55:26,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66eb1e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26, skipping insertion in model container [2025-02-08 08:55:26,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:55:26,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:55:26,778 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:55:26,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:55:26,801 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:55:26,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26 WrapperNode [2025-02-08 08:55:26,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:55:26,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:55:26,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:55:26,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:55:26,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,826 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2025-02-08 08:55:26,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:55:26,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:55:26,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:55:26,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:55:26,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,837 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,841 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 08:55:26,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,844 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:55:26,850 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:55:26,850 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:55:26,850 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:55:26,851 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (1/1) ... [2025-02-08 08:55:26,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:55:26,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:55:26,884 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 08:55:26,894 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 08:55:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:55:26,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:55:26,969 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:55:26,970 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:55:27,041 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-02-08 08:55:27,041 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:55:27,049 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:55:27,049 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:55:27,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:55:27 BoogieIcfgContainer [2025-02-08 08:55:27,049 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:55:27,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:55:27,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:55:27,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:55:27,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:55:26" (1/3) ... [2025-02-08 08:55:27,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0ecaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:55:27, skipping insertion in model container [2025-02-08 08:55:27,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:55:26" (2/3) ... [2025-02-08 08:55:27,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0ecaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:55:27, skipping insertion in model container [2025-02-08 08:55:27,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:55:27" (3/3) ... [2025-02-08 08:55:27,058 INFO L128 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple4.c [2025-02-08 08:55:27,071 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:55:27,074 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG NonTerminationSimple4.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-08 08:55:27,113 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:55:27,124 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;@7ac7db23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:55:27,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 08:55:27,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 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 08:55:27,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-08 08:55:27,133 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:27,134 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-08 08:55:27,135 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:27,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1198526, now seen corresponding path program 1 times [2025-02-08 08:55:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:27,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446653172] [2025-02-08 08:55:27,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:55:27,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:27,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 08:55:27,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 08:55:27,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:55:27,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:27,302 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 08:55:27,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:55:27,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446653172] [2025-02-08 08:55:27,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446653172] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:55:27,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:55:27,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:55:27,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803141227] [2025-02-08 08:55:27,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:55:27,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:55:27,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:55:27,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:55:27,330 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:55:27,331 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:55:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:55:27,362 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2025-02-08 08:55:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:55:27,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-02-08 08:55:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:55:27,369 INFO L225 Difference]: With dead ends: 15 [2025-02-08 08:55:27,370 INFO L226 Difference]: Without dead ends: 10 [2025-02-08 08:55:27,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:55:27,378 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:55:27,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:55:27,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2025-02-08 08:55:27,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2025-02-08 08:55:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 08:55:27,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-02-08 08:55:27,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2025-02-08 08:55:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:27,410 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-02-08 08:55:27,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:55:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-02-08 08:55:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-08 08:55:27,410 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:27,410 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 08:55:27,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:55:27,411 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:27,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:27,411 INFO L85 PathProgramCache]: Analyzing trace with hash 37154277, now seen corresponding path program 1 times [2025-02-08 08:55:27,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:27,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960060105] [2025-02-08 08:55:27,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:55:27,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:27,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 08:55:27,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 08:55:27,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:55:27,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:27,469 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 08:55:27,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:55:27,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960060105] [2025-02-08 08:55:27,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960060105] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:55:27,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:55:27,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:55:27,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873634822] [2025-02-08 08:55:27,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:55:27,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:55:27,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:55:27,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:55:27,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:55:27,474 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 08:55:27,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:55:27,491 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2025-02-08 08:55:27,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:55:27,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 08:55:27,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:55:27,492 INFO L225 Difference]: With dead ends: 9 [2025-02-08 08:55:27,492 INFO L226 Difference]: Without dead ends: 8 [2025-02-08 08:55:27,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:55:27,493 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:55:27,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:55:27,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2025-02-08 08:55:27,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-02-08 08:55:27,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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 08:55:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-02-08 08:55:27,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2025-02-08 08:55:27,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:27,500 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-02-08 08:55:27,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 08:55:27,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-02-08 08:55:27,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 08:55:27,500 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:27,500 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-08 08:55:27,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:55:27,501 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:27,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:27,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1345521027, now seen corresponding path program 1 times [2025-02-08 08:55:27,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:27,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279208349] [2025-02-08 08:55:27,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:55:27,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:27,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:55:27,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:55:27,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:55:27,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:27,584 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 08:55:27,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:55:27,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279208349] [2025-02-08 08:55:27,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279208349] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:55:27,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636206432] [2025-02-08 08:55:27,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:55:27,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:55:27,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:55:27,589 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 08:55:27,591 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 08:55:27,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:55:27,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:55:27,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:55:27,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:27,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:55:27,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:55:27,675 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 08:55:27,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:55:27,723 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 08:55:27,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636206432] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:55:27,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:55:27,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-02-08 08:55:27,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535400882] [2025-02-08 08:55:27,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:55:27,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:55:27,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:55:27,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:55:27,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:55:27,725 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:55:27,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:55:27,760 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2025-02-08 08:55:27,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:55:27,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 08:55:27,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:55:27,761 INFO L225 Difference]: With dead ends: 18 [2025-02-08 08:55:27,761 INFO L226 Difference]: Without dead ends: 17 [2025-02-08 08:55:27,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:55:27,762 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 08:55:27,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 08:55:27,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-02-08 08:55:27,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-02-08 08:55:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 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 08:55:27,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2025-02-08 08:55:27,769 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2025-02-08 08:55:27,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:27,770 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2025-02-08 08:55:27,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:55:27,770 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2025-02-08 08:55:27,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-08 08:55:27,770 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:27,770 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2025-02-08 08:55:27,778 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 08:55:27,976 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 08:55:27,976 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:27,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:27,977 INFO L85 PathProgramCache]: Analyzing trace with hash -234373762, now seen corresponding path program 2 times [2025-02-08 08:55:27,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:27,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649442525] [2025-02-08 08:55:27,977 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:55:27,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:27,986 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 08:55:27,992 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 08:55:27,993 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:55:27,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:28,102 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:28,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:55:28,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649442525] [2025-02-08 08:55:28,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649442525] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:55:28,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272719848] [2025-02-08 08:55:28,103 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:55:28,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:55:28,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:55:28,105 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 08:55:28,107 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 08:55:28,125 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 08:55:28,131 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 08:55:28,132 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:55:28,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:28,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:55:28,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:55:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:28,171 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:55:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:28,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272719848] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:55:28,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:55:28,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-02-08 08:55:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939821888] [2025-02-08 08:55:28,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:55:28,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 08:55:28,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:55:28,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 08:55:28,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-02-08 08:55:28,301 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 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 08:55:28,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:55:28,368 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2025-02-08 08:55:28,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:55:28,368 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 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) Word has length 16 [2025-02-08 08:55:28,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:55:28,369 INFO L225 Difference]: With dead ends: 36 [2025-02-08 08:55:28,369 INFO L226 Difference]: Without dead ends: 35 [2025-02-08 08:55:28,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-02-08 08:55:28,370 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:55:28,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:55:28,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-02-08 08:55:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-02-08 08:55:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 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 08:55:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2025-02-08 08:55:28,384 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 16 [2025-02-08 08:55:28,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:28,384 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2025-02-08 08:55:28,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 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 08:55:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2025-02-08 08:55:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-02-08 08:55:28,385 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:28,385 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1] [2025-02-08 08:55:28,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 08:55:28,590 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 08:55:28,590 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:28,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:28,591 INFO L85 PathProgramCache]: Analyzing trace with hash -380264674, now seen corresponding path program 3 times [2025-02-08 08:55:28,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:28,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236821099] [2025-02-08 08:55:28,591 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:55:28,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:28,598 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 11 equivalence classes. [2025-02-08 08:55:28,610 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 08:55:28,610 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 08:55:28,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:28,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:55:28,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236821099] [2025-02-08 08:55:28,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236821099] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:55:28,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201734216] [2025-02-08 08:55:28,899 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:55:28,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:55:28,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:55:28,901 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 08:55:28,903 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 08:55:28,932 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 11 equivalence classes. [2025-02-08 08:55:28,944 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 08:55:28,944 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 08:55:28,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:28,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 08:55:28,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:55:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:29,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:55:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:29,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201734216] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:55:29,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:55:29,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2025-02-08 08:55:29,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920245535] [2025-02-08 08:55:29,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:55:29,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 08:55:29,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:55:29,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 08:55:29,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-02-08 08:55:29,343 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 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 08:55:29,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:55:29,430 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2025-02-08 08:55:29,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-08 08:55:29,431 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 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 34 [2025-02-08 08:55:29,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:55:29,432 INFO L225 Difference]: With dead ends: 72 [2025-02-08 08:55:29,432 INFO L226 Difference]: Without dead ends: 71 [2025-02-08 08:55:29,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-02-08 08:55:29,433 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:55:29,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:55:29,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-02-08 08:55:29,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-02-08 08:55:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:55:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2025-02-08 08:55:29,442 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 34 [2025-02-08 08:55:29,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:29,443 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2025-02-08 08:55:29,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 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 08:55:29,443 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2025-02-08 08:55:29,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-08 08:55:29,444 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:29,444 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1] [2025-02-08 08:55:29,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 08:55:29,644 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 08:55:29,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:29,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:29,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1335891362, now seen corresponding path program 4 times [2025-02-08 08:55:29,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:29,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527414588] [2025-02-08 08:55:29,646 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:55:29,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:29,654 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 70 statements into 2 equivalence classes. [2025-02-08 08:55:29,672 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:55:29,674 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:55:29,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:30,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:55:30,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527414588] [2025-02-08 08:55:30,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527414588] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:55:30,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219692933] [2025-02-08 08:55:30,292 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:55:30,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:55:30,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:55:30,294 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 08:55:30,295 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 08:55:30,315 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 70 statements into 2 equivalence classes. [2025-02-08 08:55:30,331 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-08 08:55:30,331 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:55:30,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:30,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 08:55:30,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:55:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:30,482 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:55:31,366 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:31,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219692933] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:55:31,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:55:31,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2025-02-08 08:55:31,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521317255] [2025-02-08 08:55:31,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:55:31,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-08 08:55:31,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:55:31,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-08 08:55:31,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-02-08 08:55:31,369 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 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 08:55:31,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:55:31,531 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2025-02-08 08:55:31,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-08 08:55:31,532 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2025-02-08 08:55:31,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:55:31,533 INFO L225 Difference]: With dead ends: 144 [2025-02-08 08:55:31,533 INFO L226 Difference]: Without dead ends: 143 [2025-02-08 08:55:31,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-02-08 08:55:31,535 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 08:55:31,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 50 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 08:55:31,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-02-08 08:55:31,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2025-02-08 08:55:31,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 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 08:55:31,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2025-02-08 08:55:31,547 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 70 [2025-02-08 08:55:31,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:31,547 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2025-02-08 08:55:31,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 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 08:55:31,547 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2025-02-08 08:55:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-08 08:55:31,549 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:31,549 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 1, 1, 1] [2025-02-08 08:55:31,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 08:55:31,753 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,SelfDestructingSolverStorable5 [2025-02-08 08:55:31,753 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:31,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:31,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1543938270, now seen corresponding path program 5 times [2025-02-08 08:55:31,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:31,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62822320] [2025-02-08 08:55:31,754 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:55:31,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:31,768 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 142 statements into 47 equivalence classes. [2025-02-08 08:55:31,845 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 142 of 142 statements. [2025-02-08 08:55:31,847 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-08 08:55:31,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:33,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:55:33,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62822320] [2025-02-08 08:55:33,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62822320] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:55:33,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462896509] [2025-02-08 08:55:33,553 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:55:33,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:55:33,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:55:33,555 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 08:55:33,557 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 08:55:33,583 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 142 statements into 47 equivalence classes. [2025-02-08 08:55:33,629 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 142 of 142 statements. [2025-02-08 08:55:33,629 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-08 08:55:33,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:33,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-02-08 08:55:33,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:55:33,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:33,866 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:55:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:36,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462896509] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:55:36,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:55:36,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2025-02-08 08:55:36,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392085493] [2025-02-08 08:55:36,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:55:36,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-02-08 08:55:36,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:55:36,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-02-08 08:55:36,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-02-08 08:55:36,543 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 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 08:55:36,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:55:36,913 INFO L93 Difference]: Finished difference Result 288 states and 335 transitions. [2025-02-08 08:55:36,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-02-08 08:55:36,913 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2025-02-08 08:55:36,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:55:36,915 INFO L225 Difference]: With dead ends: 288 [2025-02-08 08:55:36,915 INFO L226 Difference]: Without dead ends: 287 [2025-02-08 08:55:36,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-02-08 08:55:36,920 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 08:55:36,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 98 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 08:55:36,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2025-02-08 08:55:36,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2025-02-08 08:55:36,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.0034965034965035) internal successors, (287), 286 states have internal predecessors, (287), 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 08:55:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 287 transitions. [2025-02-08 08:55:36,950 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 287 transitions. Word has length 142 [2025-02-08 08:55:36,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:36,950 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 287 transitions. [2025-02-08 08:55:36,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 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 08:55:36,951 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 287 transitions. [2025-02-08 08:55:36,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2025-02-08 08:55:36,956 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:36,956 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 1, 1, 1] [2025-02-08 08:55:36,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 08:55:37,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:55:37,161 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:37,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:37,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1805873698, now seen corresponding path program 6 times [2025-02-08 08:55:37,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:37,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846385940] [2025-02-08 08:55:37,162 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:55:37,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:37,181 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 286 statements into 95 equivalence classes. [2025-02-08 08:55:37,276 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 286 of 286 statements. [2025-02-08 08:55:37,276 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-02-08 08:55:37,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:42,450 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:42,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:55:42,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846385940] [2025-02-08 08:55:42,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846385940] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:55:42,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059918346] [2025-02-08 08:55:42,451 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:55:42,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:55:42,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:55:42,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:55:42,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 08:55:42,484 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 286 statements into 95 equivalence classes. [2025-02-08 08:55:42,561 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 286 of 286 statements. [2025-02-08 08:55:42,561 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-02-08 08:55:42,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:55:42,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-02-08 08:55:42,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:55:42,921 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:42,922 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:55:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:55:51,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059918346] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:55:51,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:55:51,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2025-02-08 08:55:51,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979447938] [2025-02-08 08:55:51,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:55:51,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2025-02-08 08:55:51,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:55:51,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2025-02-08 08:55:51,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-02-08 08:55:51,970 INFO L87 Difference]: Start difference. First operand 287 states and 287 transitions. Second operand has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 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 08:55:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:55:52,812 INFO L93 Difference]: Finished difference Result 576 states and 671 transitions. [2025-02-08 08:55:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2025-02-08 08:55:52,813 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 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 286 [2025-02-08 08:55:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:55:52,815 INFO L225 Difference]: With dead ends: 576 [2025-02-08 08:55:52,815 INFO L226 Difference]: Without dead ends: 575 [2025-02-08 08:55:52,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-02-08 08:55:52,818 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 08:55:52,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 194 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 08:55:52,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2025-02-08 08:55:52,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2025-02-08 08:55:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 1.0017421602787457) internal successors, (575), 574 states have internal predecessors, (575), 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 08:55:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 575 transitions. [2025-02-08 08:55:52,843 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 575 transitions. Word has length 286 [2025-02-08 08:55:52,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:55:52,844 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 575 transitions. [2025-02-08 08:55:52,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 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 08:55:52,845 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 575 transitions. [2025-02-08 08:55:52,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2025-02-08 08:55:52,855 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:55:52,855 INFO L218 NwaCegarLoop]: trace histogram [191, 190, 190, 1, 1, 1] [2025-02-08 08:55:52,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 08:55:53,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-08 08:55:53,056 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 08:55:53,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:55:53,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1624610850, now seen corresponding path program 7 times [2025-02-08 08:55:53,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:55:53,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673577416] [2025-02-08 08:55:53,057 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:55:53,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:55:53,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-08 08:55:53,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-08 08:55:53,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:55:53,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:56:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:56:11,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:56:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673577416] [2025-02-08 08:56:11,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673577416] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:56:11,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855835831] [2025-02-08 08:56:11,724 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:56:11,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:56:11,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:56:11,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:56:11,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 08:56:11,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 574 statements into 1 equivalence classes. [2025-02-08 08:56:11,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 574 of 574 statements. [2025-02-08 08:56:11,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:56:11,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:56:11,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 192 conjuncts are in the unsatisfiable core [2025-02-08 08:56:11,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:56:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:56:12,496 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:56:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:56:48,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855835831] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:56:48,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:56:48,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2025-02-08 08:56:48,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330120756] [2025-02-08 08:56:48,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:56:48,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2025-02-08 08:56:48,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:56:48,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2025-02-08 08:56:48,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2025-02-08 08:56:48,451 INFO L87 Difference]: Start difference. First operand 575 states and 575 transitions. Second operand has 384 states, 383 states have (on average 2.9947780678851177) internal successors, (1147), 384 states have internal predecessors, (1147), 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 08:56:53,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 08:56:53,606 INFO L93 Difference]: Finished difference Result 1152 states and 1343 transitions. [2025-02-08 08:56:53,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2025-02-08 08:56:53,607 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 2.9947780678851177) internal successors, (1147), 384 states have internal predecessors, (1147), 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 574 [2025-02-08 08:56:53,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 08:56:53,612 INFO L225 Difference]: With dead ends: 1152 [2025-02-08 08:56:53,612 INFO L226 Difference]: Without dead ends: 1151 [2025-02-08 08:56:53,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.3s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2025-02-08 08:56:53,617 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 08:56:53,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 386 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 08:56:53,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2025-02-08 08:56:53,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2025-02-08 08:56:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 1150 states have (on average 1.0008695652173913) internal successors, (1151), 1150 states have internal predecessors, (1151), 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 08:56:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1151 transitions. [2025-02-08 08:56:53,653 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1151 transitions. Word has length 574 [2025-02-08 08:56:53,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 08:56:53,654 INFO L471 AbstractCegarLoop]: Abstraction has 1151 states and 1151 transitions. [2025-02-08 08:56:53,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 2.9947780678851177) internal successors, (1147), 384 states have internal predecessors, (1147), 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 08:56:53,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1151 transitions. [2025-02-08 08:56:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1151 [2025-02-08 08:56:53,689 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 08:56:53,689 INFO L218 NwaCegarLoop]: trace histogram [383, 382, 382, 1, 1, 1] [2025-02-08 08:56:53,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0