./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/id_i25_o25-2.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 76955366716759eb9478710f6ef46e3de93d252b9c3177ff4beaca56ee5c75a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 14:32:39,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 14:32:40,013 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 14:32:40,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 14:32:40,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 14:32:40,039 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 14:32:40,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 14:32:40,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 14:32:40,040 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 14:32:40,040 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 14:32:40,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 14:32:40,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 14:32:40,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 14:32:40,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 14:32:40,041 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 14:32:40,042 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:32:40,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 14:32:40,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 14:32:40,042 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 -> 76955366716759eb9478710f6ef46e3de93d252b9c3177ff4beaca56ee5c75a7 [2025-02-06 14:32:40,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 14:32:40,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 14:32:40,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 14:32:40,286 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 14:32:40,286 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 14:32:40,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i25_o25-2.c [2025-02-06 14:32:41,401 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f6bdf399/6884c46e47e6416596282035a39055c2/FLAGdd71dbd31 [2025-02-06 14:32:41,648 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 14:32:41,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i25_o25-2.c [2025-02-06 14:32:41,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f6bdf399/6884c46e47e6416596282035a39055c2/FLAGdd71dbd31 [2025-02-06 14:32:41,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f6bdf399/6884c46e47e6416596282035a39055c2 [2025-02-06 14:32:41,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 14:32:41,677 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 14:32:41,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 14:32:41,678 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 14:32:41,682 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 14:32:41,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503af47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41, skipping insertion in model container [2025-02-06 14:32:41,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 14:32:41,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:32:41,809 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 14:32:41,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:32:41,830 INFO L204 MainTranslator]: Completed translation [2025-02-06 14:32:41,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41 WrapperNode [2025-02-06 14:32:41,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 14:32:41,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 14:32:41,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 14:32:41,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 14:32:41,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,854 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2025-02-06 14:32:41,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 14:32:41,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 14:32:41,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 14:32:41,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 14:32:41,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,863 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,875 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]. [2025-02-06 14:32:41,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,877 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 14:32:41,879 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 14:32:41,879 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 14:32:41,879 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 14:32:41,882 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (1/1) ... [2025-02-06 14:32:41,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:32:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:41,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 14:32:41,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 14:32:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 14:32:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 14:32:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 14:32:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 14:32:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure id [2025-02-06 14:32:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2025-02-06 14:32:41,954 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 14:32:41,955 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 14:32:42,017 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L8: havoc #t~ret4; [2025-02-06 14:32:42,021 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-02-06 14:32:42,021 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 14:32:42,026 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 14:32:42,026 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 14:32:42,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:32:42 BoogieIcfgContainer [2025-02-06 14:32:42,026 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 14:32:42,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 14:32:42,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 14:32:42,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 14:32:42,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:32:41" (1/3) ... [2025-02-06 14:32:42,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7f51a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:32:42, skipping insertion in model container [2025-02-06 14:32:42,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:32:41" (2/3) ... [2025-02-06 14:32:42,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7f51a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:32:42, skipping insertion in model container [2025-02-06 14:32:42,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:32:42" (3/3) ... [2025-02-06 14:32:42,035 INFO L128 eAbstractionObserver]: Analyzing ICFG id_i25_o25-2.c [2025-02-06 14:32:42,044 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 14:32:42,046 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id_i25_o25-2.c that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-06 14:32:42,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 14:32:42,086 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;@15c7859e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 14:32:42,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 14:32:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 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) [2025-02-06 14:32:42,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 14:32:42,093 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:42,093 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 14:32:42,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:42,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:42,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1123769116, now seen corresponding path program 1 times [2025-02-06 14:32:42,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:42,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099149798] [2025-02-06 14:32:42,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:42,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:42,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 14:32:42,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 14:32:42,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:42,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:42,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:42,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099149798] [2025-02-06 14:32:42,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099149798] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:42,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:42,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:32:42,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099836213] [2025-02-06 14:32:42,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:42,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:32:42,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:42,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:32:42,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:32:42,283 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:42,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:42,351 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2025-02-06 14:32:42,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:32:42,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-02-06 14:32:42,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:42,358 INFO L225 Difference]: With dead ends: 46 [2025-02-06 14:32:42,358 INFO L226 Difference]: Without dead ends: 28 [2025-02-06 14:32:42,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:32:42,361 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:42,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:42,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-02-06 14:32:42,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2025-02-06 14:32:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:32:42,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2025-02-06 14:32:42,395 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 6 [2025-02-06 14:32:42,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:42,396 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2025-02-06 14:32:42,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2025-02-06 14:32:42,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-06 14:32:42,397 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:42,397 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:42,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 14:32:42,397 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:42,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:42,399 INFO L85 PathProgramCache]: Analyzing trace with hash 477104215, now seen corresponding path program 1 times [2025-02-06 14:32:42,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:42,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023369318] [2025-02-06 14:32:42,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:42,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 14:32:42,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 14:32:42,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:42,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:42,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:42,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:42,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023369318] [2025-02-06 14:32:42,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023369318] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:42,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:42,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:32:42,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101338765] [2025-02-06 14:32:42,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:42,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:32:42,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:42,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:32:42,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:32:42,468 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:42,510 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2025-02-06 14:32:42,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:32:42,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-06 14:32:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:42,512 INFO L225 Difference]: With dead ends: 27 [2025-02-06 14:32:42,512 INFO L226 Difference]: Without dead ends: 26 [2025-02-06 14:32:42,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:32:42,513 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:42,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-02-06 14:32:42,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2025-02-06 14:32:42,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:32:42,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2025-02-06 14:32:42,523 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2025-02-06 14:32:42,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:42,523 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-02-06 14:32:42,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:42,523 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2025-02-06 14:32:42,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 14:32:42,524 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:42,524 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:42,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 14:32:42,524 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:42,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:42,525 INFO L85 PathProgramCache]: Analyzing trace with hash -638284688, now seen corresponding path program 1 times [2025-02-06 14:32:42,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:42,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859299812] [2025-02-06 14:32:42,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:42,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:42,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 14:32:42,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 14:32:42,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:42,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:42,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:42,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:42,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859299812] [2025-02-06 14:32:42,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859299812] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:42,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657075694] [2025-02-06 14:32:42,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:42,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:42,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:42,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:42,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 14:32:42,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 14:32:42,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 14:32:42,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:42,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:42,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 14:32:42,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:42,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:42,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:42,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657075694] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:42,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:42,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-02-06 14:32:42,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932735445] [2025-02-06 14:32:42,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:42,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 14:32:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:42,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 14:32:42,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:32:42,770 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:42,911 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2025-02-06 14:32:42,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 14:32:42,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-02-06 14:32:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:42,912 INFO L225 Difference]: With dead ends: 76 [2025-02-06 14:32:42,913 INFO L226 Difference]: Without dead ends: 68 [2025-02-06 14:32:42,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-02-06 14:32:42,913 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:42,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 95 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:32:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-02-06 14:32:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2025-02-06 14:32:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 14:32:42,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2025-02-06 14:32:42,939 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 11 [2025-02-06 14:32:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:42,939 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2025-02-06 14:32:42,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:42,939 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2025-02-06 14:32:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 14:32:42,939 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:42,939 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:42,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 14:32:43,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:43,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:43,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash -16539686, now seen corresponding path program 1 times [2025-02-06 14:32:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:43,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320170014] [2025-02-06 14:32:43,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:43,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:43,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 14:32:43,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 14:32:43,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:43,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:43,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 14:32:43,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:43,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320170014] [2025-02-06 14:32:43,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320170014] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:43,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:43,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:32:43,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750848001] [2025-02-06 14:32:43,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:43,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:32:43,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:43,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:32:43,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:32:43,217 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:32:43,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:43,239 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2025-02-06 14:32:43,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:32:43,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2025-02-06 14:32:43,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:43,241 INFO L225 Difference]: With dead ends: 74 [2025-02-06 14:32:43,241 INFO L226 Difference]: Without dead ends: 72 [2025-02-06 14:32:43,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:32:43,241 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:43,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:43,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-02-06 14:32:43,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-02-06 14:32:43,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2025-02-06 14:32:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2025-02-06 14:32:43,253 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2025-02-06 14:32:43,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:43,253 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2025-02-06 14:32:43,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:32:43,253 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2025-02-06 14:32:43,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-06 14:32:43,254 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:43,254 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:43,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 14:32:43,254 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:43,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:43,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1336297931, now seen corresponding path program 1 times [2025-02-06 14:32:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:43,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507478560] [2025-02-06 14:32:43,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:43,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:43,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 14:32:43,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 14:32:43,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:43,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:43,311 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 14:32:43,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:43,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507478560] [2025-02-06 14:32:43,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507478560] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:32:43,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:32:43,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:32:43,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550789294] [2025-02-06 14:32:43,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:32:43,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 14:32:43,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:43,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 14:32:43,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:32:43,312 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:32:43,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:43,325 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2025-02-06 14:32:43,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 14:32:43,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2025-02-06 14:32:43,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:43,326 INFO L225 Difference]: With dead ends: 72 [2025-02-06 14:32:43,326 INFO L226 Difference]: Without dead ends: 71 [2025-02-06 14:32:43,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:32:43,327 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:43,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:43,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-02-06 14:32:43,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-02-06 14:32:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2025-02-06 14:32:43,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2025-02-06 14:32:43,335 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2025-02-06 14:32:43,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:43,335 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2025-02-06 14:32:43,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:32:43,335 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2025-02-06 14:32:43,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 14:32:43,336 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:43,336 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2025-02-06 14:32:43,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 14:32:43,336 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:43,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:43,337 INFO L85 PathProgramCache]: Analyzing trace with hash -543218660, now seen corresponding path program 2 times [2025-02-06 14:32:43,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:43,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300811202] [2025-02-06 14:32:43,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:43,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:43,341 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-02-06 14:32:43,347 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 14:32:43,348 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:43,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:43,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:43,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300811202] [2025-02-06 14:32:43,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300811202] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:43,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244005740] [2025-02-06 14:32:43,535 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:43,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:43,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:43,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:43,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 14:32:43,556 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-02-06 14:32:43,564 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 14:32:43,564 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:43,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:43,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 14:32:43,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:43,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:43,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244005740] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:43,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:43,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2025-02-06 14:32:43,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708268377] [2025-02-06 14:32:43,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:43,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 14:32:43,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:43,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 14:32:43,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2025-02-06 14:32:43,775 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:44,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:44,059 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2025-02-06 14:32:44,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 14:32:44,060 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2025-02-06 14:32:44,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:44,061 INFO L225 Difference]: With dead ends: 188 [2025-02-06 14:32:44,061 INFO L226 Difference]: Without dead ends: 156 [2025-02-06 14:32:44,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 14:32:44,062 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 247 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:44,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 223 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:32:44,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2025-02-06 14:32:44,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2025-02-06 14:32:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.146551724137931) internal successors, (133), 116 states have internal predecessors, (133), 12 states have call successors, (12), 11 states have call predecessors, (12), 16 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2025-02-06 14:32:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2025-02-06 14:32:44,085 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2025-02-06 14:32:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:44,085 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2025-02-06 14:32:44,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:44,085 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2025-02-06 14:32:44,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-02-06 14:32:44,087 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:44,087 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 14:32:44,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 14:32:44,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:44,291 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:44,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash -98645244, now seen corresponding path program 1 times [2025-02-06 14:32:44,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:44,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722755184] [2025-02-06 14:32:44,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:44,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:44,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:32:44,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:32:44,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:44,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 14:32:44,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:44,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722755184] [2025-02-06 14:32:44,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722755184] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:44,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545116613] [2025-02-06 14:32:44,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:32:44,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:44,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:44,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:44,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 14:32:44,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:32:44,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:32:44,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:32:44,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:44,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 14:32:44,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 14:32:44,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 14:32:44,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545116613] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:44,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:44,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 15] total 29 [2025-02-06 14:32:44,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594957980] [2025-02-06 14:32:44,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:44,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-02-06 14:32:44,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:44,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-02-06 14:32:44,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2025-02-06 14:32:44,843 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:32:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:45,225 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2025-02-06 14:32:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 14:32:45,227 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 40 [2025-02-06 14:32:45,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:45,228 INFO L225 Difference]: With dead ends: 208 [2025-02-06 14:32:45,228 INFO L226 Difference]: Without dead ends: 142 [2025-02-06 14:32:45,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=1334, Unknown=0, NotChecked=0, Total=1640 [2025-02-06 14:32:45,229 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 164 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:45,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 462 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:32:45,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-02-06 14:32:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2025-02-06 14:32:45,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 106 states have internal predecessors, (119), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2025-02-06 14:32:45,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2025-02-06 14:32:45,241 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 40 [2025-02-06 14:32:45,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:45,242 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2025-02-06 14:32:45,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:32:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2025-02-06 14:32:45,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-02-06 14:32:45,246 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:45,247 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2025-02-06 14:32:45,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 14:32:45,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:45,447 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:45,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1018977892, now seen corresponding path program 3 times [2025-02-06 14:32:45,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:45,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935866848] [2025-02-06 14:32:45,448 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:45,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:45,452 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 56 statements into 11 equivalence classes. [2025-02-06 14:32:45,471 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 56 of 56 statements. [2025-02-06 14:32:45,472 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 14:32:45,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:45,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:45,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935866848] [2025-02-06 14:32:45,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935866848] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:45,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590694536] [2025-02-06 14:32:45,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:45,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:45,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:45,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:45,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 14:32:45,810 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 56 statements into 11 equivalence classes. [2025-02-06 14:32:45,824 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 56 of 56 statements. [2025-02-06 14:32:45,824 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 14:32:45,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:45,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 14:32:45,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:45,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:46,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590694536] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:46,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:46,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2025-02-06 14:32:46,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142380079] [2025-02-06 14:32:46,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:46,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-06 14:32:46,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:46,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-06 14:32:46,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2025-02-06 14:32:46,380 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:46,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:46,992 INFO L93 Difference]: Finished difference Result 438 states and 470 transitions. [2025-02-06 14:32:46,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-06 14:32:46,993 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2025-02-06 14:32:46,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:46,994 INFO L225 Difference]: With dead ends: 438 [2025-02-06 14:32:46,995 INFO L226 Difference]: Without dead ends: 386 [2025-02-06 14:32:46,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2025-02-06 14:32:46,997 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 789 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:46,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 471 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:32:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-02-06 14:32:47,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 364. [2025-02-06 14:32:47,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 291 states have (on average 1.120274914089347) internal successors, (326), 290 states have internal predecessors, (326), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2025-02-06 14:32:47,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 400 transitions. [2025-02-06 14:32:47,022 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 400 transitions. Word has length 56 [2025-02-06 14:32:47,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:47,022 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 400 transitions. [2025-02-06 14:32:47,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:47,022 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 400 transitions. [2025-02-06 14:32:47,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-06 14:32:47,023 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:47,023 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2025-02-06 14:32:47,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 14:32:47,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 14:32:47,227 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:47,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:47,227 INFO L85 PathProgramCache]: Analyzing trace with hash 2136562119, now seen corresponding path program 2 times [2025-02-06 14:32:47,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:47,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768307169] [2025-02-06 14:32:47,228 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:47,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:47,234 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-02-06 14:32:47,247 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 14:32:47,247 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:47,248 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:47,648 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 14:32:47,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:47,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768307169] [2025-02-06 14:32:47,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768307169] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:47,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073242099] [2025-02-06 14:32:47,649 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:32:47,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:47,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:47,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:47,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 14:32:47,676 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 75 statements into 2 equivalence classes. [2025-02-06 14:32:47,688 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 14:32:47,688 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:32:47,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:47,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 14:32:47,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:47,777 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 297 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-06 14:32:47,777 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 303 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 14:32:48,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073242099] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:48,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:48,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 27] total 49 [2025-02-06 14:32:48,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160809433] [2025-02-06 14:32:48,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:48,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2025-02-06 14:32:48,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:48,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2025-02-06 14:32:48,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=1874, Unknown=0, NotChecked=0, Total=2352 [2025-02-06 14:32:48,349 INFO L87 Difference]: Start difference. First operand 364 states and 400 transitions. Second operand has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-02-06 14:32:48,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:48,866 INFO L93 Difference]: Finished difference Result 481 states and 516 transitions. [2025-02-06 14:32:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-02-06 14:32:48,867 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 75 [2025-02-06 14:32:48,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:48,869 INFO L225 Difference]: With dead ends: 481 [2025-02-06 14:32:48,869 INFO L226 Difference]: Without dead ends: 290 [2025-02-06 14:32:48,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1144, Invalid=3686, Unknown=0, NotChecked=0, Total=4830 [2025-02-06 14:32:48,873 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 492 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:48,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 739 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:32:48,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2025-02-06 14:32:48,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 264. [2025-02-06 14:32:48,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 211 states have (on average 1.1184834123222749) internal successors, (236), 210 states have internal predecessors, (236), 24 states have call successors, (24), 23 states have call predecessors, (24), 27 states have return successors, (30), 30 states have call predecessors, (30), 23 states have call successors, (30) [2025-02-06 14:32:48,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 290 transitions. [2025-02-06 14:32:48,891 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 290 transitions. Word has length 75 [2025-02-06 14:32:48,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:48,891 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 290 transitions. [2025-02-06 14:32:48,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-02-06 14:32:48,891 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 290 transitions. [2025-02-06 14:32:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-02-06 14:32:48,892 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:48,892 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2025-02-06 14:32:48,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 14:32:49,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:49,093 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:49,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:49,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1377387364, now seen corresponding path program 4 times [2025-02-06 14:32:49,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:49,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055166390] [2025-02-06 14:32:49,094 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:32:49,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:49,107 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 116 statements into 2 equivalence classes. [2025-02-06 14:32:49,120 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 116 of 116 statements. [2025-02-06 14:32:49,120 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:32:49,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:50,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:50,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055166390] [2025-02-06 14:32:50,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055166390] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:50,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669186174] [2025-02-06 14:32:50,045 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:32:50,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:50,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:50,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:50,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 14:32:50,068 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 116 statements into 2 equivalence classes. [2025-02-06 14:32:50,088 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 116 of 116 statements. [2025-02-06 14:32:50,089 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:32:50,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:50,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-02-06 14:32:50,092 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:50,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:50,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:32:51,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669186174] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:51,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:51,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 98 [2025-02-06 14:32:51,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820649279] [2025-02-06 14:32:51,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:51,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2025-02-06 14:32:51,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:51,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2025-02-06 14:32:51,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2360, Invalid=7342, Unknown=0, NotChecked=0, Total=9702 [2025-02-06 14:32:51,693 INFO L87 Difference]: Start difference. First operand 264 states and 290 transitions. Second operand has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:53,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:53,528 INFO L93 Difference]: Finished difference Result 892 states and 961 transitions. [2025-02-06 14:32:53,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-02-06 14:32:53,528 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2025-02-06 14:32:53,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:53,531 INFO L225 Difference]: With dead ends: 892 [2025-02-06 14:32:53,531 INFO L226 Difference]: Without dead ends: 770 [2025-02-06 14:32:53,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4638 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5651, Invalid=15229, Unknown=0, NotChecked=0, Total=20880 [2025-02-06 14:32:53,535 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 1937 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:53,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 1308 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 14:32:53,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2025-02-06 14:32:53,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 724. [2025-02-06 14:32:53,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 579 states have (on average 1.1226252158894645) internal successors, (650), 578 states have internal predecessors, (650), 48 states have call successors, (48), 47 states have call predecessors, (48), 95 states have return successors, (98), 98 states have call predecessors, (98), 47 states have call successors, (98) [2025-02-06 14:32:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 796 transitions. [2025-02-06 14:32:53,568 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 796 transitions. Word has length 116 [2025-02-06 14:32:53,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:53,569 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 796 transitions. [2025-02-06 14:32:53,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:32:53,569 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 796 transitions. [2025-02-06 14:32:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 14:32:53,570 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:53,570 INFO L218 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2025-02-06 14:32:53,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 14:32:53,770 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,SelfDestructingSolverStorable9 [2025-02-06 14:32:53,771 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:53,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:53,771 INFO L85 PathProgramCache]: Analyzing trace with hash -445489465, now seen corresponding path program 3 times [2025-02-06 14:32:53,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:53,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291897705] [2025-02-06 14:32:53,771 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:53,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:53,775 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 135 statements into 24 equivalence classes. [2025-02-06 14:32:53,779 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 135 statements. [2025-02-06 14:32:53,779 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-06 14:32:53,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-02-06 14:32:53,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:53,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291897705] [2025-02-06 14:32:53,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291897705] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:53,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980766419] [2025-02-06 14:32:53,845 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:32:53,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:53,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:53,847 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:53,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 14:32:53,877 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 135 statements into 24 equivalence classes. [2025-02-06 14:32:53,885 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 30 of 135 statements. [2025-02-06 14:32:53,885 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-06 14:32:53,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:53,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 14:32:53,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:53,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-02-06 14:32:53,920 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-02-06 14:32:54,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980766419] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:54,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:54,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2025-02-06 14:32:54,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351166837] [2025-02-06 14:32:54,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:54,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 14:32:54,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:54,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 14:32:54,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-02-06 14:32:54,054 INFO L87 Difference]: Start difference. First operand 724 states and 796 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-02-06 14:32:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:54,116 INFO L93 Difference]: Finished difference Result 1287 states and 1476 transitions. [2025-02-06 14:32:54,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 14:32:54,117 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 135 [2025-02-06 14:32:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:54,121 INFO L225 Difference]: With dead ends: 1287 [2025-02-06 14:32:54,121 INFO L226 Difference]: Without dead ends: 1286 [2025-02-06 14:32:54,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-02-06 14:32:54,123 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:54,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:32:54,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2025-02-06 14:32:54,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1286. [2025-02-06 14:32:54,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1031 states have (on average 1.0688651794374393) internal successors, (1102), 1026 states have internal predecessors, (1102), 48 states have call successors, (48), 47 states have call predecessors, (48), 205 states have return successors, (212), 212 states have call predecessors, (212), 47 states have call successors, (212) [2025-02-06 14:32:54,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1362 transitions. [2025-02-06 14:32:54,191 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1362 transitions. Word has length 135 [2025-02-06 14:32:54,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:54,191 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1362 transitions. [2025-02-06 14:32:54,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2025-02-06 14:32:54,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1362 transitions. [2025-02-06 14:32:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-02-06 14:32:54,193 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:54,193 INFO L218 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2025-02-06 14:32:54,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 14:32:54,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:54,394 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:54,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash 31812359, now seen corresponding path program 4 times [2025-02-06 14:32:54,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:54,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799479384] [2025-02-06 14:32:54,395 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:32:54,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:54,399 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 155 statements into 2 equivalence classes. [2025-02-06 14:32:54,409 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 14:32:54,409 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:32:54,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:54,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-02-06 14:32:54,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:54,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799479384] [2025-02-06 14:32:54,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799479384] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:54,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722708548] [2025-02-06 14:32:54,688 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:32:54,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:54,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:54,689 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:54,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 14:32:54,716 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 155 statements into 2 equivalence classes. [2025-02-06 14:32:54,739 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 155 of 155 statements. [2025-02-06 14:32:54,739 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:32:54,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:54,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-02-06 14:32:54,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 18 proven. 1311 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-02-06 14:32:55,521 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:32:57,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 18 proven. 1377 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-06 14:32:57,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722708548] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:32:57,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:32:57,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 45, 51] total 69 [2025-02-06 14:32:57,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153919029] [2025-02-06 14:32:57,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:32:57,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2025-02-06 14:32:57,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:32:57,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2025-02-06 14:32:57,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=4026, Unknown=0, NotChecked=0, Total=4692 [2025-02-06 14:32:57,396 INFO L87 Difference]: Start difference. First operand 1286 states and 1362 transitions. Second operand has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) [2025-02-06 14:32:58,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:32:58,440 INFO L93 Difference]: Finished difference Result 1538 states and 1642 transitions. [2025-02-06 14:32:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-02-06 14:32:58,441 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) Word has length 155 [2025-02-06 14:32:58,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:32:58,445 INFO L225 Difference]: With dead ends: 1538 [2025-02-06 14:32:58,445 INFO L226 Difference]: Without dead ends: 1387 [2025-02-06 14:32:58,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 235 SyntacticMatches, 39 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1621, Invalid=8479, Unknown=0, NotChecked=0, Total=10100 [2025-02-06 14:32:58,447 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 488 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:32:58,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1280 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:32:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2025-02-06 14:32:58,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1369. [2025-02-06 14:32:58,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1098 states have (on average 1.0628415300546448) internal successors, (1167), 1092 states have internal predecessors, (1167), 48 states have call successors, (48), 47 states have call predecessors, (48), 221 states have return successors, (229), 229 states have call predecessors, (229), 47 states have call successors, (229) [2025-02-06 14:32:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1444 transitions. [2025-02-06 14:32:58,493 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1444 transitions. Word has length 155 [2025-02-06 14:32:58,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:32:58,493 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 1444 transitions. [2025-02-06 14:32:58,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) [2025-02-06 14:32:58,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1444 transitions. [2025-02-06 14:32:58,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-02-06 14:32:58,496 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:32:58,496 INFO L218 NwaCegarLoop]: trace histogram [26, 25, 25, 25, 25, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1] [2025-02-06 14:32:58,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 14:32:58,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:58,699 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:32:58,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:32:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1813431716, now seen corresponding path program 5 times [2025-02-06 14:32:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:32:58,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155126434] [2025-02-06 14:32:58,699 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 14:32:58,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:32:58,704 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 170 statements into 26 equivalence classes. [2025-02-06 14:32:58,752 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) and asserted 170 of 170 statements. [2025-02-06 14:32:58,752 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2025-02-06 14:32:58,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2025-02-06 14:32:58,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:32:58,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155126434] [2025-02-06 14:32:58,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155126434] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:32:58,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322872976] [2025-02-06 14:32:58,963 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 14:32:58,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:32:58,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:32:58,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:32:58,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 14:32:59,005 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 170 statements into 26 equivalence classes. [2025-02-06 14:32:59,044 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) and asserted 170 of 170 statements. [2025-02-06 14:32:59,044 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2025-02-06 14:32:59,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:32:59,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 14:32:59,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:32:59,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2025-02-06 14:32:59,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:33:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2025-02-06 14:33:00,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322872976] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:33:00,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:33:00,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2025-02-06 14:33:00,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492204307] [2025-02-06 14:33:00,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:33:00,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-02-06 14:33:00,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:33:00,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-02-06 14:33:00,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 14:33:00,378 INFO L87 Difference]: Start difference. First operand 1369 states and 1444 transitions. Second operand has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2025-02-06 14:33:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:33:00,514 INFO L93 Difference]: Finished difference Result 2882 states and 3271 transitions. [2025-02-06 14:33:00,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-02-06 14:33:00,514 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) Word has length 170 [2025-02-06 14:33:00,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:33:00,522 INFO L225 Difference]: With dead ends: 2882 [2025-02-06 14:33:00,522 INFO L226 Difference]: Without dead ends: 2881 [2025-02-06 14:33:00,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 14:33:00,524 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:33:00,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:33:00,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2025-02-06 14:33:00,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2025-02-06 14:33:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2313 states have (on average 1.0298313878080414) internal successors, (2382), 2298 states have internal predecessors, (2382), 48 states have call successors, (48), 47 states have call predecessors, (48), 518 states have return successors, (535), 535 states have call predecessors, (535), 47 states have call successors, (535) [2025-02-06 14:33:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 2965 transitions. [2025-02-06 14:33:00,627 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 2965 transitions. Word has length 170 [2025-02-06 14:33:00,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:33:00,628 INFO L471 AbstractCegarLoop]: Abstraction has 2881 states and 2965 transitions. [2025-02-06 14:33:00,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2025-02-06 14:33:00,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 2965 transitions. [2025-02-06 14:33:00,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2025-02-06 14:33:00,632 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:33:00,633 INFO L218 NwaCegarLoop]: trace histogram [26, 25, 25, 25, 25, 17, 17, 17, 17, 16, 1, 1, 1, 1, 1] [2025-02-06 14:33:00,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 14:33:00,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:33:00,833 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:33:00,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:33:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash 453478695, now seen corresponding path program 6 times [2025-02-06 14:33:00,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:33:00,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774568122] [2025-02-06 14:33:00,834 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 14:33:00,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:33:00,842 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 215 statements into 26 equivalence classes. [2025-02-06 14:33:00,892 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) and asserted 215 of 215 statements. [2025-02-06 14:33:00,892 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2025-02-06 14:33:00,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:33:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2025-02-06 14:33:01,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:33:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774568122] [2025-02-06 14:33:01,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774568122] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:33:01,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987196018] [2025-02-06 14:33:01,532 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 14:33:01,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:33:01,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:33:01,535 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:33:01,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 14:33:01,595 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 215 statements into 26 equivalence classes. [2025-02-06 14:33:01,636 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) and asserted 215 of 215 statements. [2025-02-06 14:33:01,637 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2025-02-06 14:33:01,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:33:01,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-02-06 14:33:01,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:33:01,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2025-02-06 14:33:01,724 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:33:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2025-02-06 14:33:14,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987196018] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:33:14,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:33:14,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 71 [2025-02-06 14:33:14,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563561355] [2025-02-06 14:33:14,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:33:14,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2025-02-06 14:33:14,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:33:14,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2025-02-06 14:33:14,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2025-02-06 14:33:14,311 INFO L87 Difference]: Start difference. First operand 2881 states and 2965 transitions. Second operand has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) [2025-02-06 14:33:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:33:14,579 INFO L93 Difference]: Finished difference Result 6896 states and 7797 transitions. [2025-02-06 14:33:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2025-02-06 14:33:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) Word has length 215 [2025-02-06 14:33:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:33:14,593 INFO L225 Difference]: With dead ends: 6896 [2025-02-06 14:33:14,593 INFO L226 Difference]: Without dead ends: 5420 [2025-02-06 14:33:14,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1575 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2025-02-06 14:33:14,597 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:33:14,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:33:14,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2025-02-06 14:33:14,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5420. [2025-02-06 14:33:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 4355 states have (on average 1.0135476463834672) internal successors, (4414), 4322 states have internal predecessors, (4414), 48 states have call successors, (48), 47 states have call predecessors, (48), 1015 states have return successors, (1050), 1050 states have call predecessors, (1050), 47 states have call successors, (1050) [2025-02-06 14:33:14,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 5512 transitions. [2025-02-06 14:33:14,796 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 5512 transitions. Word has length 215 [2025-02-06 14:33:14,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:33:14,797 INFO L471 AbstractCegarLoop]: Abstraction has 5420 states and 5512 transitions. [2025-02-06 14:33:14,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) [2025-02-06 14:33:14,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 5512 transitions. [2025-02-06 14:33:14,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2025-02-06 14:33:14,800 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:33:14,800 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2025-02-06 14:33:14,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 14:33:15,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-06 14:33:15,000 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:33:15,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:33:15,001 INFO L85 PathProgramCache]: Analyzing trace with hash -164269412, now seen corresponding path program 5 times [2025-02-06 14:33:15,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:33:15,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503660011] [2025-02-06 14:33:15,001 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 14:33:15,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:33:15,013 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 236 statements into 47 equivalence classes. [2025-02-06 14:33:15,107 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 236 of 236 statements. [2025-02-06 14:33:15,107 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-06 14:33:15,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:33:17,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:33:17,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:33:17,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503660011] [2025-02-06 14:33:17,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503660011] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:33:17,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591900980] [2025-02-06 14:33:17,971 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 14:33:17,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:33:17,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:33:17,972 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:33:17,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 14:33:18,175 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 236 statements into 47 equivalence classes. [2025-02-06 14:33:18,262 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 236 of 236 statements. [2025-02-06 14:33:18,263 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-06 14:33:18,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:33:18,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-02-06 14:33:18,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:33:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:33:18,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:33:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:33:23,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591900980] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:33:23,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:33:23,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2025-02-06 14:33:23,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350206133] [2025-02-06 14:33:23,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:33:23,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2025-02-06 14:33:23,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:33:23,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2025-02-06 14:33:23,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2025-02-06 14:33:23,238 INFO L87 Difference]: Start difference. First operand 5420 states and 5512 transitions. Second operand has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:33:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:33:24,309 INFO L93 Difference]: Finished difference Result 5445 states and 5512 transitions. [2025-02-06 14:33:24,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-02-06 14:33:24,310 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2025-02-06 14:33:24,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:33:24,324 INFO L225 Difference]: With dead ends: 5445 [2025-02-06 14:33:24,325 INFO L226 Difference]: Without dead ends: 5444 [2025-02-06 14:33:24,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11393 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=13906, Invalid=33836, Unknown=0, NotChecked=0, Total=47742 [2025-02-06 14:33:24,328 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 827 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:33:24,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 849 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:33:24,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2025-02-06 14:33:24,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 5419. [2025-02-06 14:33:24,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 4355 states have (on average 1.0133180252583238) internal successors, (4413), 4321 states have internal predecessors, (4413), 48 states have call successors, (48), 47 states have call predecessors, (48), 1015 states have return successors, (1050), 1050 states have call predecessors, (1050), 47 states have call successors, (1050) [2025-02-06 14:33:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 5511 transitions. [2025-02-06 14:33:24,526 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 5511 transitions. Word has length 236 [2025-02-06 14:33:24,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:33:24,526 INFO L471 AbstractCegarLoop]: Abstraction has 5419 states and 5511 transitions. [2025-02-06 14:33:24,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:33:24,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 5511 transitions. [2025-02-06 14:33:24,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2025-02-06 14:33:24,536 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:33:24,536 INFO L218 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 35, 35, 34, 1, 1, 1, 1, 1] [2025-02-06 14:33:24,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 14:33:24,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-06 14:33:24,737 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 14:33:24,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:33:24,738 INFO L85 PathProgramCache]: Analyzing trace with hash 831571399, now seen corresponding path program 7 times [2025-02-06 14:33:24,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:33:24,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029023360] [2025-02-06 14:33:24,738 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 14:33:24,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:33:24,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 355 statements into 1 equivalence classes. [2025-02-06 14:33:24,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 355 of 355 statements. [2025-02-06 14:33:24,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:33:24,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:33:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6020 backedges. 0 proven. 2975 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2025-02-06 14:33:26,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:33:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029023360] [2025-02-06 14:33:26,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029023360] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:33:26,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961198256] [2025-02-06 14:33:26,753 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 14:33:26,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:33:26,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:33:26,754 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:33:26,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 14:33:26,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 355 statements into 1 equivalence classes. [2025-02-06 14:33:27,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 355 of 355 statements. [2025-02-06 14:33:27,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:33:27,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:33:27,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 74 conjuncts are in the unsatisfiable core [2025-02-06 14:33:27,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:33:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6020 backedges. 2975 proven. 172 refuted. 0 times theorem prover too weak. 2873 trivial. 0 not checked. [2025-02-06 14:33:28,325 INFO L312 TraceCheckSpWp]: Computing backward predicates...