./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/nla-digbench-scaling/freire1_valuebound1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 322f54fed62e27ecdc37b8dbd1ba5a40efbeb3c981a1a7430a57877b391f432f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 09:32:54,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 09:32:54,881 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 09:32:54,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 09:32:54,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 09:32:54,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 09:32:54,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 09:32:54,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 09:32:54,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 09:32:54,912 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 09:32:54,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 09:32:54,912 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 09:32:54,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 09:32:54,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 09:32:54,913 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 09:32:54,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 09:32:54,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 09:32:54,913 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 09:32:54,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 09:32:54,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 09:32:54,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 09:32:54,914 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 09:32:54,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 09:32:54,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 09:32:54,914 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 09:32:54,914 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 09:32:54,914 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 09:32:54,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 09:32:54,914 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 09:32:54,915 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 09:32:54,915 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 09:32:54,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 09:32:54,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 09:32:54,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 09:32:54,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:32:54,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 09:32:54,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 09:32:54,917 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 322f54fed62e27ecdc37b8dbd1ba5a40efbeb3c981a1a7430a57877b391f432f [2025-02-08 09:32:55,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 09:32:55,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 09:32:55,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 09:32:55,207 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 09:32:55,207 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 09:32:55,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound1.c [2025-02-08 09:32:56,497 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/348595c63/83faf1fdf7e94314b3a8c338085744ed/FLAGa9c4ec07a [2025-02-08 09:32:56,718 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 09:32:56,724 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound1.c [2025-02-08 09:32:56,739 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/348595c63/83faf1fdf7e94314b3a8c338085744ed/FLAGa9c4ec07a [2025-02-08 09:32:56,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/348595c63/83faf1fdf7e94314b3a8c338085744ed [2025-02-08 09:32:56,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 09:32:56,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 09:32:56,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 09:32:56,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 09:32:56,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 09:32:56,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:56,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2854d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56, skipping insertion in model container [2025-02-08 09:32:56,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:56,808 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 09:32:56,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:32:56,956 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 09:32:56,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 09:32:56,986 INFO L204 MainTranslator]: Completed translation [2025-02-08 09:32:56,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56 WrapperNode [2025-02-08 09:32:56,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 09:32:56,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 09:32:56,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 09:32:56,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 09:32:56,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:56,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,011 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2025-02-08 09:32:57,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 09:32:57,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 09:32:57,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 09:32:57,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 09:32:57,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,033 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 09:32:57,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,040 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 09:32:57,043 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 09:32:57,043 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 09:32:57,044 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 09:32:57,044 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (1/1) ... [2025-02-08 09:32:57,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 09:32:57,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:32:57,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 09:32:57,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 09:32:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 09:32:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 09:32:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 09:32:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 09:32:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 09:32:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 09:32:57,144 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 09:32:57,146 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 09:32:57,297 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2025-02-08 09:32:57,297 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 09:32:57,307 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 09:32:57,307 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 09:32:57,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:32:57 BoogieIcfgContainer [2025-02-08 09:32:57,307 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 09:32:57,310 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 09:32:57,310 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 09:32:57,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 09:32:57,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 09:32:56" (1/3) ... [2025-02-08 09:32:57,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188efc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:32:57, skipping insertion in model container [2025-02-08 09:32:57,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 09:32:56" (2/3) ... [2025-02-08 09:32:57,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188efc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 09:32:57, skipping insertion in model container [2025-02-08 09:32:57,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 09:32:57" (3/3) ... [2025-02-08 09:32:57,316 INFO L128 eAbstractionObserver]: Analyzing ICFG freire1_valuebound1.c [2025-02-08 09:32:57,328 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 09:32:57,330 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG freire1_valuebound1.c that has 2 procedures, 26 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2025-02-08 09:32:57,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 09:32:57,391 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;@3370911a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 09:32:57,392 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-08 09:32:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:32:57,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-08 09:32:57,400 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:32:57,401 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 09:32:57,402 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:32:57,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:32:57,406 INFO L85 PathProgramCache]: Analyzing trace with hash 51469845, now seen corresponding path program 1 times [2025-02-08 09:32:57,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:32:57,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47697739] [2025-02-08 09:32:57,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:32:57,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:32:57,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 09:32:57,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 09:32:57,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:32:57,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:32:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:32:57,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:32:57,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47697739] [2025-02-08 09:32:57,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47697739] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:32:57,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:32:57,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 09:32:57,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777370655] [2025-02-08 09:32:57,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:32:57,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 09:32:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:32:57,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 09:32:57,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 09:32:57,541 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 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 09:32:57,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:32:57,557 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2025-02-08 09:32:57,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 09:32:57,558 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 09:32:57,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:32:57,563 INFO L225 Difference]: With dead ends: 48 [2025-02-08 09:32:57,563 INFO L226 Difference]: Without dead ends: 20 [2025-02-08 09:32:57,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 09:32:57,567 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:32:57,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:32:57,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-02-08 09:32:57,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2025-02-08 09:32:57,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-08 09:32:57,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2025-02-08 09:32:57,592 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 5 [2025-02-08 09:32:57,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:32:57,592 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2025-02-08 09:32:57,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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 09:32:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2025-02-08 09:32:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-08 09:32:57,595 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:32:57,595 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 09:32:57,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 09:32:57,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:32:57,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:32:57,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1596488701, now seen corresponding path program 1 times [2025-02-08 09:32:57,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:32:57,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325408563] [2025-02-08 09:32:57,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:32:57,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:32:57,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 09:32:57,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 09:32:57,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:32:57,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 09:32:57,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323836407] [2025-02-08 09:32:57,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:32:57,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:32:57,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:32:57,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:32:57,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 09:32:57,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 09:32:57,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 09:32:57,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:32:57,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:32:57,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 09:32:57,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:32:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:32:57,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 09:32:57,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:32:57,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325408563] [2025-02-08 09:32:57,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 09:32:57,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323836407] [2025-02-08 09:32:57,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323836407] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 09:32:57,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 09:32:57,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 09:32:57,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008584251] [2025-02-08 09:32:57,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 09:32:57,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 09:32:57,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:32:57,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 09:32:57,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:32:57,697 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:32:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:32:57,739 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2025-02-08 09:32:57,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 09:32:57,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-08 09:32:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:32:57,742 INFO L225 Difference]: With dead ends: 33 [2025-02-08 09:32:57,743 INFO L226 Difference]: Without dead ends: 27 [2025-02-08 09:32:57,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 09:32:57,744 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 09:32:57,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 09:32:57,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-02-08 09:32:57,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-02-08 09:32:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 23 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:32:57,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2025-02-08 09:32:57,754 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 6 [2025-02-08 09:32:57,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:32:57,755 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2025-02-08 09:32:57,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 09:32:57,755 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2025-02-08 09:32:57,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-02-08 09:32:57,756 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:32:57,756 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 09:32:57,764 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 09:32:57,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:32:57,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:32:57,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:32:57,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1445702770, now seen corresponding path program 1 times [2025-02-08 09:32:57,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:32:57,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316553301] [2025-02-08 09:32:57,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:32:57,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:32:57,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 09:32:57,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 09:32:57,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:32:57,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 09:32:57,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810634329] [2025-02-08 09:32:57,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 09:32:57,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:32:57,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:32:57,992 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:32:57,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 09:32:58,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 09:32:58,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 09:32:58,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:32:58,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:32:58,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 09:32:58,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:32:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:32:58,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:32:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 09:32:58,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:32:58,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316553301] [2025-02-08 09:32:58,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 09:32:58,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810634329] [2025-02-08 09:32:58,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810634329] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:32:58,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 09:32:58,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-02-08 09:32:58,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882877336] [2025-02-08 09:32:58,162 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 09:32:58,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 09:32:58,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:32:58,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 09:32:58,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-08 09:32:58,164 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:32:58,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:32:58,266 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2025-02-08 09:32:58,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 09:32:58,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2025-02-08 09:32:58,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:32:58,267 INFO L225 Difference]: With dead ends: 49 [2025-02-08 09:32:58,267 INFO L226 Difference]: Without dead ends: 39 [2025-02-08 09:32:58,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-08 09:32:58,268 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:32:58,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 38 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:32:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-02-08 09:32:58,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-02-08 09:32:58,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 09:32:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2025-02-08 09:32:58,278 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2025-02-08 09:32:58,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:32:58,279 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2025-02-08 09:32:58,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 09:32:58,279 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2025-02-08 09:32:58,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-08 09:32:58,280 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:32:58,280 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2025-02-08 09:32:58,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 09:32:58,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:32:58,481 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:32:58,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:32:58,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1030507197, now seen corresponding path program 2 times [2025-02-08 09:32:58,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:32:58,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182201837] [2025-02-08 09:32:58,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:32:58,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:32:58,500 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-02-08 09:32:58,528 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-02-08 09:32:58,529 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:32:58,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 09:32:58,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083844929] [2025-02-08 09:32:58,531 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 09:32:58,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:32:58,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:32:58,533 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:32:58,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 09:32:58,573 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 50 statements into 2 equivalence classes. [2025-02-08 09:32:58,601 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 50 of 50 statements. [2025-02-08 09:32:58,601 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 09:32:58,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:32:58,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 09:32:58,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:32:58,737 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 09:32:58,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:32:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 09:32:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:32:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182201837] [2025-02-08 09:32:58,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 09:32:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083844929] [2025-02-08 09:32:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083844929] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:32:58,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 09:32:58,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-02-08 09:32:58,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046470420] [2025-02-08 09:32:58,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 09:32:58,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 09:32:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:32:58,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 09:32:58,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2025-02-08 09:32:58,967 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-08 09:32:59,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:32:59,212 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2025-02-08 09:32:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 09:32:59,212 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 50 [2025-02-08 09:32:59,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:32:59,213 INFO L225 Difference]: With dead ends: 82 [2025-02-08 09:32:59,213 INFO L226 Difference]: Without dead ends: 81 [2025-02-08 09:32:59,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2025-02-08 09:32:59,214 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:32:59,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 121 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 09:32:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-02-08 09:32:59,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2025-02-08 09:32:59,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 69 states have (on average 1.0144927536231885) internal successors, (70), 69 states have internal predecessors, (70), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-08 09:32:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2025-02-08 09:32:59,225 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 50 [2025-02-08 09:32:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:32:59,225 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2025-02-08 09:32:59,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-08 09:32:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2025-02-08 09:32:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-02-08 09:32:59,230 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:32:59,230 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2025-02-08 09:32:59,238 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 09:32:59,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:32:59,435 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:32:59,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:32:59,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1887970525, now seen corresponding path program 3 times [2025-02-08 09:32:59,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:32:59,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104176113] [2025-02-08 09:32:59,436 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 09:32:59,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:32:59,450 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 116 statements into 11 equivalence classes. [2025-02-08 09:32:59,530 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 116 of 116 statements. [2025-02-08 09:32:59,534 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 09:32:59,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 09:32:59,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42967892] [2025-02-08 09:32:59,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 09:32:59,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:32:59,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:32:59,541 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:32:59,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 09:32:59,583 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 116 statements into 11 equivalence classes. [2025-02-08 09:32:59,628 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 116 of 116 statements. [2025-02-08 09:32:59,628 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 09:32:59,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:32:59,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-08 09:32:59,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:32:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-02-08 09:32:59,827 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:33:00,314 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-02-08 09:33:00,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:33:00,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104176113] [2025-02-08 09:33:00,314 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 09:33:00,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42967892] [2025-02-08 09:33:00,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42967892] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:33:00,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 09:33:00,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2025-02-08 09:33:00,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661785166] [2025-02-08 09:33:00,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 09:33:00,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 09:33:00,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:33:00,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 09:33:00,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2025-02-08 09:33:00,317 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-08 09:33:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:33:01,195 INFO L93 Difference]: Finished difference Result 166 states and 198 transitions. [2025-02-08 09:33:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-08 09:33:01,197 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 116 [2025-02-08 09:33:01,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:33:01,199 INFO L225 Difference]: With dead ends: 166 [2025-02-08 09:33:01,199 INFO L226 Difference]: Without dead ends: 165 [2025-02-08 09:33:01,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2025-02-08 09:33:01,204 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 39 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 09:33:01,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 487 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 09:33:01,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2025-02-08 09:33:01,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2025-02-08 09:33:01,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 141 states have (on average 1.0070921985815602) internal successors, (142), 141 states have internal predecessors, (142), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-08 09:33:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2025-02-08 09:33:01,236 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 116 [2025-02-08 09:33:01,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:33:01,237 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2025-02-08 09:33:01,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-08 09:33:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2025-02-08 09:33:01,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2025-02-08 09:33:01,243 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:33:01,244 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2025-02-08 09:33:01,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 09:33:01,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:33:01,445 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:33:01,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:33:01,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1830076701, now seen corresponding path program 4 times [2025-02-08 09:33:01,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:33:01,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114365823] [2025-02-08 09:33:01,446 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 09:33:01,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:33:01,471 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 248 statements into 2 equivalence classes. [2025-02-08 09:33:01,550 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 248 of 248 statements. [2025-02-08 09:33:01,550 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 09:33:01,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 09:33:01,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537722529] [2025-02-08 09:33:01,553 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 09:33:01,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:33:01,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:33:01,556 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:33:01,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 09:33:01,619 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 248 statements into 2 equivalence classes. [2025-02-08 09:33:01,681 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 248 of 248 statements. [2025-02-08 09:33:01,681 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 09:33:01,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:33:01,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-02-08 09:33:01,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:33:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-08 09:33:02,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:33:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-08 09:33:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:33:03,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114365823] [2025-02-08 09:33:03,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 09:33:03,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537722529] [2025-02-08 09:33:03,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537722529] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:33:03,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 09:33:03,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2025-02-08 09:33:03,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189982985] [2025-02-08 09:33:03,528 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 09:33:03,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-08 09:33:03,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:33:03,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-08 09:33:03,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2025-02-08 09:33:03,532 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 09:33:06,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:33:06,539 INFO L93 Difference]: Finished difference Result 334 states and 402 transitions. [2025-02-08 09:33:06,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-08 09:33:06,539 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 248 [2025-02-08 09:33:06,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:33:06,542 INFO L225 Difference]: With dead ends: 334 [2025-02-08 09:33:06,542 INFO L226 Difference]: Without dead ends: 333 [2025-02-08 09:33:06,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2025-02-08 09:33:06,546 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 75 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-08 09:33:06,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1777 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-08 09:33:06,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-02-08 09:33:06,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2025-02-08 09:33:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 285 states have (on average 1.0035087719298246) internal successors, (286), 285 states have internal predecessors, (286), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-02-08 09:33:06,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 378 transitions. [2025-02-08 09:33:06,592 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 378 transitions. Word has length 248 [2025-02-08 09:33:06,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:33:06,593 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 378 transitions. [2025-02-08 09:33:06,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-08 09:33:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 378 transitions. [2025-02-08 09:33:06,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2025-02-08 09:33:06,604 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:33:06,604 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2025-02-08 09:33:06,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 09:33:06,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:33:06,808 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:33:06,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:33:06,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1522112925, now seen corresponding path program 5 times [2025-02-08 09:33:06,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:33:06,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484714977] [2025-02-08 09:33:06,809 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 09:33:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:33:06,838 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 512 statements into 47 equivalence classes. [2025-02-08 09:33:07,196 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 512 of 512 statements. [2025-02-08 09:33:07,197 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-08 09:33:07,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 09:33:07,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773026037] [2025-02-08 09:33:07,208 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 09:33:07,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:33:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:33:07,214 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:33:07,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 09:33:07,288 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 512 statements into 47 equivalence classes. [2025-02-08 09:33:07,426 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 512 of 512 statements. [2025-02-08 09:33:07,427 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-08 09:33:07,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:33:07,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-02-08 09:33:07,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:33:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2025-02-08 09:33:08,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:33:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2025-02-08 09:33:12,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:33:12,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484714977] [2025-02-08 09:33:12,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 09:33:12,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773026037] [2025-02-08 09:33:12,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773026037] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:33:12,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 09:33:12,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2025-02-08 09:33:12,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625379803] [2025-02-08 09:33:12,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 09:33:12,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-02-08 09:33:12,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:33:12,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-02-08 09:33:12,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2025-02-08 09:33:12,146 INFO L87 Difference]: Start difference. First operand 333 states and 378 transitions. Second operand has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-02-08 09:33:25,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:33:25,297 INFO L93 Difference]: Finished difference Result 670 states and 810 transitions. [2025-02-08 09:33:25,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-02-08 09:33:25,298 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 512 [2025-02-08 09:33:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:33:25,302 INFO L225 Difference]: With dead ends: 670 [2025-02-08 09:33:25,302 INFO L226 Difference]: Without dead ends: 669 [2025-02-08 09:33:25,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2025-02-08 09:33:25,306 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 147 mSDsluCounter, 6916 mSDsCounter, 0 mSdLazyCounter, 11375 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 7111 SdHoareTripleChecker+Invalid, 11424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-02-08 09:33:25,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 7111 Invalid, 11424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 11375 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-02-08 09:33:25,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2025-02-08 09:33:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2025-02-08 09:33:25,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 573 states have (on average 1.0017452006980803) internal successors, (574), 573 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-02-08 09:33:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 762 transitions. [2025-02-08 09:33:25,350 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 762 transitions. Word has length 512 [2025-02-08 09:33:25,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:33:25,351 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 762 transitions. [2025-02-08 09:33:25,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-02-08 09:33:25,352 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 762 transitions. [2025-02-08 09:33:25,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2025-02-08 09:33:25,379 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:33:25,379 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2025-02-08 09:33:25,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 09:33:25,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-02-08 09:33:25,580 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:33:25,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:33:25,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1039256221, now seen corresponding path program 6 times [2025-02-08 09:33:25,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:33:25,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269144330] [2025-02-08 09:33:25,581 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 09:33:25,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:33:25,628 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1040 statements into 95 equivalence classes. [2025-02-08 09:33:26,255 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 1040 of 1040 statements. [2025-02-08 09:33:26,256 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-02-08 09:33:26,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 09:33:26,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908370131] [2025-02-08 09:33:26,263 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 09:33:26,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:33:26,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:33:26,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:33:26,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 09:33:26,405 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1040 statements into 95 equivalence classes. [2025-02-08 09:33:27,333 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 1040 of 1040 statements. [2025-02-08 09:33:27,333 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-02-08 09:33:27,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:33:27,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 98 conjuncts are in the unsatisfiable core [2025-02-08 09:33:27,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:33:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 48363 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-08 09:33:31,169 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:33:31,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:33:31,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269144330] [2025-02-08 09:33:31,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 09:33:31,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908370131] [2025-02-08 09:33:31,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908370131] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 09:33:31,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-08 09:33:31,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2025-02-08 09:33:31,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805213264] [2025-02-08 09:33:31,666 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-08 09:33:31,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2025-02-08 09:33:31,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:33:31,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2025-02-08 09:33:31,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2025-02-08 09:33:31,673 INFO L87 Difference]: Start difference. First operand 669 states and 762 transitions. Second operand has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-02-08 09:33:37,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 09:33:37,811 INFO L93 Difference]: Finished difference Result 681 states and 776 transitions. [2025-02-08 09:33:37,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2025-02-08 09:33:37,812 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 1040 [2025-02-08 09:33:37,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 09:33:37,820 INFO L225 Difference]: With dead ends: 681 [2025-02-08 09:33:37,822 INFO L226 Difference]: Without dead ends: 680 [2025-02-08 09:33:37,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1151 GetRequests, 957 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2025-02-08 09:33:37,828 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 473 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-08 09:33:37,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 237 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-08 09:33:37,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2025-02-08 09:33:37,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 676. [2025-02-08 09:33:37,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 579 states have (on average 1.001727115716753) internal successors, (580), 579 states have internal predecessors, (580), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-02-08 09:33:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 770 transitions. [2025-02-08 09:33:37,868 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 770 transitions. Word has length 1040 [2025-02-08 09:33:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 09:33:37,870 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 770 transitions. [2025-02-08 09:33:37,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-02-08 09:33:37,871 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 770 transitions. [2025-02-08 09:33:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2025-02-08 09:33:37,880 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 09:33:37,880 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1] [2025-02-08 09:33:37,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 09:33:38,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:33:38,081 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-02-08 09:33:38,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 09:33:38,081 INFO L85 PathProgramCache]: Analyzing trace with hash -757751570, now seen corresponding path program 7 times [2025-02-08 09:33:38,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 09:33:38,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936300342] [2025-02-08 09:33:38,081 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 09:33:38,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 09:33:38,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1051 statements into 1 equivalence classes. [2025-02-08 09:33:38,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1051 of 1051 statements. [2025-02-08 09:33:38,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:33:38,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-08 09:33:38,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083007675] [2025-02-08 09:33:38,321 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 09:33:38,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 09:33:38,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 09:33:38,325 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 09:33:38,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 09:33:38,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1051 statements into 1 equivalence classes. [2025-02-08 09:33:38,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1051 of 1051 statements. [2025-02-08 09:33:38,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 09:33:38,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 09:33:38,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 193 conjuncts are in the unsatisfiable core [2025-02-08 09:33:38,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 09:33:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2025-02-08 09:33:42,382 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 09:33:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2025-02-08 09:33:55,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 09:33:55,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936300342] [2025-02-08 09:33:55,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-08 09:33:55,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083007675] [2025-02-08 09:33:55,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083007675] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 09:33:55,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 09:33:55,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2025-02-08 09:33:55,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997441163] [2025-02-08 09:33:55,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 09:33:55,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2025-02-08 09:33:55,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 09:33:55,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2025-02-08 09:33:55,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2025-02-08 09:33:55,743 INFO L87 Difference]: Start difference. First operand 676 states and 770 transitions. Second operand has 194 states, 193 states have (on average 5.974093264248705) internal successors, (1153), 194 states have internal predecessors, (1153), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190)