./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/id_i5_o5-2.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 1be5a7d97aa41e02c549ddce0b54861696e25bfa9b91d41dbf151eb81f7686c7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 10:01:55,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 10:01:55,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 10:01:55,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 10:01:55,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 10:01:55,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 10:01:55,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 10:01:55,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 10:01:55,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 10:01:55,959 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 10:01:55,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 10:01:55,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 10:01:55,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 10:01:55,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 10:01:55,960 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 10:01:55,962 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 10:01:55,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 10:01:55,962 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 10:01:55,962 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 10:01:55,962 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 10:01:55,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 10:01:55,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 10:01:55,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 10:01:55,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 10:01:55,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 10:01:55,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 10:01:55,963 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 -> 1be5a7d97aa41e02c549ddce0b54861696e25bfa9b91d41dbf151eb81f7686c7 [2025-02-08 10:01:56,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 10:01:56,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 10:01:56,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 10:01:56,166 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 10:01:56,166 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 10:01:56,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c [2025-02-08 10:01:57,252 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ce9dbd6f/ab9ca49274704262ba9d1ee7c4eda0a2/FLAG8bc3d2bb9 [2025-02-08 10:01:57,466 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 10:01:57,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c [2025-02-08 10:01:57,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ce9dbd6f/ab9ca49274704262ba9d1ee7c4eda0a2/FLAG8bc3d2bb9 [2025-02-08 10:01:57,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ce9dbd6f/ab9ca49274704262ba9d1ee7c4eda0a2 [2025-02-08 10:01:57,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 10:01:57,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 10:01:57,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 10:01:57,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 10:01:57,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 10:01:57,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24302769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57, skipping insertion in model container [2025-02-08 10:01:57,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 10:01:57,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 10:01:57,634 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 10:01:57,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 10:01:57,651 INFO L204 MainTranslator]: Completed translation [2025-02-08 10:01:57,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57 WrapperNode [2025-02-08 10:01:57,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 10:01:57,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 10:01:57,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 10:01:57,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 10:01:57,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,667 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2025-02-08 10:01:57,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 10:01:57,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 10:01:57,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 10:01:57,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 10:01:57,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,673 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,680 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 10:01:57,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,682 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,683 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 10:01:57,685 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 10:01:57,685 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 10:01:57,685 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 10:01:57,686 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (1/1) ... [2025-02-08 10:01:57,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 10:01:57,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:01:57,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 10:01:57,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 10:01:57,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 10:01:57,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 10:01:57,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 10:01:57,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 10:01:57,731 INFO L130 BoogieDeclarations]: Found specification of procedure id [2025-02-08 10:01:57,732 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2025-02-08 10:01:57,770 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 10:01:57,771 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 10:01:57,832 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L8: havoc #t~ret4; [2025-02-08 10:01:57,836 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2025-02-08 10:01:57,836 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 10:01:57,842 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 10:01:57,842 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 10:01:57,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 10:01:57 BoogieIcfgContainer [2025-02-08 10:01:57,843 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 10:01:57,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 10:01:57,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 10:01:57,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 10:01:57,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 10:01:57" (1/3) ... [2025-02-08 10:01:57,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411074ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 10:01:57, skipping insertion in model container [2025-02-08 10:01:57,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:01:57" (2/3) ... [2025-02-08 10:01:57,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411074ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 10:01:57, skipping insertion in model container [2025-02-08 10:01:57,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 10:01:57" (3/3) ... [2025-02-08 10:01:57,852 INFO L128 eAbstractionObserver]: Analyzing ICFG id_i5_o5-2.c [2025-02-08 10:01:57,862 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 10:01:57,863 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id_i5_o5-2.c that has 2 procedures, 21 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 10:01:57,895 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 10:01:57,903 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;@48194351, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 10:01:57,903 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 10:01:57,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-08 10:01:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-08 10:01:57,911 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:01:57,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 10:01:57,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:01:57,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:01:57,917 INFO L85 PathProgramCache]: Analyzing trace with hash 33921984, now seen corresponding path program 1 times [2025-02-08 10:01:57,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:01:57,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416439075] [2025-02-08 10:01:57,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:01:57,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:01:57,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 10:01:57,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 10:01:57,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:01:57,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:58,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:01:58,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:01:58,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416439075] [2025-02-08 10:01:58,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416439075] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 10:01:58,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 10:01:58,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 10:01:58,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564725285] [2025-02-08 10:01:58,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 10:01:58,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 10:01:58,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:01:58,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 10:01:58,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 10:01:58,099 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-08 10:01:58,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:01:58,175 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2025-02-08 10:01:58,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 10:01:58,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 5 [2025-02-08 10:01:58,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:01:58,180 INFO L225 Difference]: With dead ends: 42 [2025-02-08 10:01:58,180 INFO L226 Difference]: Without dead ends: 27 [2025-02-08 10:01:58,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 10:01:58,183 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 21 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 60 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 [2025-02-08 10:01:58,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 60 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 10:01:58,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-02-08 10:01:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2025-02-08 10:01:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 19 states have internal predecessors, (23), 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) [2025-02-08 10:01:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2025-02-08 10:01:58,215 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 5 [2025-02-08 10:01:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:01:58,215 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2025-02-08 10:01:58,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-02-08 10:01:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2025-02-08 10:01:58,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-08 10:01:58,217 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:01:58,217 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 10:01:58,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 10:01:58,218 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:01:58,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:01:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1051581488, now seen corresponding path program 1 times [2025-02-08 10:01:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:01:58,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937791356] [2025-02-08 10:01:58,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:01:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:01:58,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 10:01:58,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 10:01:58,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:01:58,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:01:58,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:01:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937791356] [2025-02-08 10:01:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937791356] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 10:01:58,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 10:01:58,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 10:01:58,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867937610] [2025-02-08 10:01:58,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 10:01:58,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 10:01:58,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:01:58,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 10:01:58,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 10:01:58,265 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2025-02-08 10:01:58,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:01:58,294 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2025-02-08 10:01:58,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 10:01:58,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2025-02-08 10:01:58,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:01:58,295 INFO L225 Difference]: With dead ends: 26 [2025-02-08 10:01:58,296 INFO L226 Difference]: Without dead ends: 25 [2025-02-08 10:01:58,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 10:01:58,296 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 22 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 [2025-02-08 10:01:58,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 22 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 10:01:58,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-02-08 10:01:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2025-02-08 10:01:58,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 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) [2025-02-08 10:01:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2025-02-08 10:01:58,305 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 6 [2025-02-08 10:01:58,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:01:58,306 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2025-02-08 10:01:58,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2025-02-08 10:01:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2025-02-08 10:01:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-08 10:01:58,306 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:01:58,306 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 10:01:58,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 10:01:58,306 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:01:58,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:01:58,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1057055497, now seen corresponding path program 1 times [2025-02-08 10:01:58,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:01:58,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125661759] [2025-02-08 10:01:58,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:01:58,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:01:58,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 10:01:58,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 10:01:58,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:01:58,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:58,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:01:58,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:01:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125661759] [2025-02-08 10:01:58,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125661759] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 10:01:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302535638] [2025-02-08 10:01:58,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:01:58,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 10:01:58,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:01:58,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 10:01:58,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 10:01:58,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 10:01:58,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 10:01:58,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:01:58,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:58,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 10:01:58,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 10:01:58,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:01:58,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 10:01:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:01:58,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302535638] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 10:01:58,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 10:01:58,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-08 10:01:58,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231027815] [2025-02-08 10:01:58,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 10:01:58,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 10:01:58,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:01:58,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 10:01:58,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-02-08 10:01:58,538 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 12 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 7 states have internal predecessors, (16), 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) [2025-02-08 10:01:58,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:01:58,654 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2025-02-08 10:01:58,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 10:01:58,655 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 7 states have internal predecessors, (16), 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 10 [2025-02-08 10:01:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:01:58,656 INFO L225 Difference]: With dead ends: 75 [2025-02-08 10:01:58,656 INFO L226 Difference]: Without dead ends: 67 [2025-02-08 10:01:58,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-02-08 10:01:58,657 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 88 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 10:01:58,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 94 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 10:01:58,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2025-02-08 10:01:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 53. [2025-02-08 10:01:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.325) internal successors, (53), 42 states have internal predecessors, (53), 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) [2025-02-08 10:01:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2025-02-08 10:01:58,670 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 10 [2025-02-08 10:01:58,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:01:58,670 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2025-02-08 10:01:58,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 7 states have internal predecessors, (16), 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) [2025-02-08 10:01:58,670 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2025-02-08 10:01:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 10:01:58,670 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:01:58,670 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 10:01:58,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 10:01:58,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 10:01:58,871 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:01:58,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:01:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1910481933, now seen corresponding path program 1 times [2025-02-08 10:01:58,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:01:58,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190471375] [2025-02-08 10:01:58,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:01:58,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:01:58,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 10:01:58,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 10:01:58,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:01:58,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 10:01:58,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:01:58,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190471375] [2025-02-08 10:01:58,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190471375] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 10:01:58,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 10:01:58,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 10:01:58,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639047404] [2025-02-08 10:01:58,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 10:01:58,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 10:01:58,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:01:58,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 10:01:58,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 10:01:58,922 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-02-08 10:01:58,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:01:58,937 INFO L93 Difference]: Finished difference Result 73 states and 91 transitions. [2025-02-08 10:01:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 10:01:58,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 18 [2025-02-08 10:01:58,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:01:58,938 INFO L225 Difference]: With dead ends: 73 [2025-02-08 10:01:58,938 INFO L226 Difference]: Without dead ends: 71 [2025-02-08 10:01:58,939 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 [2025-02-08 10:01:58,939 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 36 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 [2025-02-08 10:01:58,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 36 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 10:01:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2025-02-08 10:01:58,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2025-02-08 10:01:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 56 states have internal predecessors, (68), 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) [2025-02-08 10:01:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2025-02-08 10:01:58,948 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 18 [2025-02-08 10:01:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:01:58,948 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2025-02-08 10:01:58,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-02-08 10:01:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2025-02-08 10:01:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-08 10:01:58,949 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:01:58,949 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 10:01:58,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 10:01:58,949 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:01:58,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:01:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash 743436921, now seen corresponding path program 1 times [2025-02-08 10:01:58,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:01:58,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069514540] [2025-02-08 10:01:58,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:01:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:01:58,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 10:01:58,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 10:01:58,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:01:58,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 10:01:58,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:01:58,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069514540] [2025-02-08 10:01:58,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069514540] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 10:01:58,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 10:01:58,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 10:01:58,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844433804] [2025-02-08 10:01:58,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 10:01:58,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 10:01:58,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:01:58,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 10:01:58,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 10:01:58,993 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-02-08 10:01:59,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:01:59,001 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2025-02-08 10:01:59,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 10:01:59,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 23 [2025-02-08 10:01:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:01:59,002 INFO L225 Difference]: With dead ends: 71 [2025-02-08 10:01:59,002 INFO L226 Difference]: Without dead ends: 70 [2025-02-08 10:01:59,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 10:01:59,003 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 23 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 [2025-02-08 10:01:59,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 10:01:59,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2025-02-08 10:01:59,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2025-02-08 10:01:59,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 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) [2025-02-08 10:01:59,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2025-02-08 10:01:59,024 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 23 [2025-02-08 10:01:59,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:01:59,024 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2025-02-08 10:01:59,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2025-02-08 10:01:59,025 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2025-02-08 10:01:59,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-08 10:01:59,025 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:01:59,026 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1] [2025-02-08 10:01:59,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 10:01:59,026 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:01:59,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:01:59,027 INFO L85 PathProgramCache]: Analyzing trace with hash 922181376, now seen corresponding path program 2 times [2025-02-08 10:01:59,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:01:59,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723224621] [2025-02-08 10:01:59,027 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 10:01:59,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:01:59,031 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-02-08 10:01:59,037 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 10:01:59,037 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 10:01:59,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:59,187 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:01:59,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:01:59,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723224621] [2025-02-08 10:01:59,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723224621] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 10:01:59,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729623125] [2025-02-08 10:01:59,188 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 10:01:59,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 10:01:59,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:01:59,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 10:01:59,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 10:01:59,213 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-02-08 10:01:59,223 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 10:01:59,223 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 10:01:59,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:59,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 10:01:59,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 10:01:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:01:59,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 10:01:59,433 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:01:59,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729623125] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 10:01:59,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 10:01:59,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2025-02-08 10:01:59,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666711960] [2025-02-08 10:01:59,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 10:01:59,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 10:01:59,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:01:59,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 10:01:59,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2025-02-08 10:01:59,434 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 24 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 13 states have internal predecessors, (40), 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) [2025-02-08 10:01:59,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:01:59,685 INFO L93 Difference]: Finished difference Result 187 states and 203 transitions. [2025-02-08 10:01:59,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-08 10:01:59,686 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 13 states have internal predecessors, (40), 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 25 [2025-02-08 10:01:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:01:59,688 INFO L225 Difference]: With dead ends: 187 [2025-02-08 10:01:59,688 INFO L226 Difference]: Without dead ends: 155 [2025-02-08 10:01:59,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2025-02-08 10:01:59,689 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 202 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 10:01:59,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 224 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 10:01:59,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2025-02-08 10:01:59,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2025-02-08 10:01:59,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 115 states have (on average 1.1478260869565218) internal successors, (132), 115 states have internal predecessors, (132), 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) [2025-02-08 10:01:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 162 transitions. [2025-02-08 10:01:59,703 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 162 transitions. Word has length 25 [2025-02-08 10:01:59,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:01:59,703 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 162 transitions. [2025-02-08 10:01:59,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 13 states have internal predecessors, (40), 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) [2025-02-08 10:01:59,704 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 162 transitions. [2025-02-08 10:01:59,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-02-08 10:01:59,704 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:01:59,704 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 10:01:59,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 10:01:59,905 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 [2025-02-08 10:01:59,905 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:01:59,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:01:59,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1731945400, now seen corresponding path program 1 times [2025-02-08 10:01:59,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:01:59,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951090912] [2025-02-08 10:01:59,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:01:59,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:01:59,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 10:01:59,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 10:01:59,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:01:59,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:01:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 10:01:59,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:01:59,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951090912] [2025-02-08 10:01:59,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951090912] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 10:01:59,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192760299] [2025-02-08 10:01:59,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:01:59,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 10:01:59,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:01:59,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 10:01:59,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 10:02:00,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 10:02:00,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 10:02:00,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:02:00,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:00,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 10:02:00,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 10:02:00,053 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 10:02:00,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 10:02:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 10:02:00,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192760299] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 10:02:00,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 10:02:00,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 10:02:00,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426421584] [2025-02-08 10:02:00,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 10:02:00,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 10:02:00,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:02:00,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 10:02:00,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 10:02:00,136 INFO L87 Difference]: Start difference. First operand 145 states and 162 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-08 10:02:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:02:00,171 INFO L93 Difference]: Finished difference Result 275 states and 321 transitions. [2025-02-08 10:02:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 10:02:00,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2025-02-08 10:02:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:02:00,172 INFO L225 Difference]: With dead ends: 275 [2025-02-08 10:02:00,172 INFO L226 Difference]: Without dead ends: 274 [2025-02-08 10:02:00,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 10:02:00,173 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 10:02:00,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 10:02:00,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2025-02-08 10:02:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2025-02-08 10:02:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 220 states have (on average 1.0772727272727274) internal successors, (237), 217 states have internal predecessors, (237), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2025-02-08 10:02:00,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 294 transitions. [2025-02-08 10:02:00,199 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 294 transitions. Word has length 39 [2025-02-08 10:02:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:02:00,199 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 294 transitions. [2025-02-08 10:02:00,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-08 10:02:00,199 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 294 transitions. [2025-02-08 10:02:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-02-08 10:02:00,200 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:02:00,204 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1] [2025-02-08 10:02:00,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 10:02:00,404 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 [2025-02-08 10:02:00,404 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:02:00,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:02:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash 617547744, now seen corresponding path program 3 times [2025-02-08 10:02:00,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:02:00,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288905930] [2025-02-08 10:02:00,405 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 10:02:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:02:00,413 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 11 equivalence classes. [2025-02-08 10:02:00,421 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 55 of 55 statements. [2025-02-08 10:02:00,423 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 10:02:00,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:02:00,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:02:00,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288905930] [2025-02-08 10:02:00,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288905930] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 10:02:00,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853337299] [2025-02-08 10:02:00,767 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 10:02:00,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 10:02:00,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:02:00,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 10:02:00,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 10:02:00,807 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 55 statements into 11 equivalence classes. [2025-02-08 10:02:00,822 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 55 of 55 statements. [2025-02-08 10:02:00,822 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 10:02:00,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:00,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 10:02:00,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 10:02:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:02:00,900 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 10:02:01,370 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:02:01,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853337299] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 10:02:01,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 10:02:01,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2025-02-08 10:02:01,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917254891] [2025-02-08 10:02:01,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 10:02:01,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-08 10:02:01,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:02:01,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-08 10:02:01,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2025-02-08 10:02:01,374 INFO L87 Difference]: Start difference. First operand 274 states and 294 transitions. Second operand has 48 states, 45 states have (on average 1.9555555555555555) internal successors, (88), 25 states have internal predecessors, (88), 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) [2025-02-08 10:02:01,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:02:01,504 INFO L93 Difference]: Finished difference Result 279 states and 294 transitions. [2025-02-08 10:02:01,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 10:02:01,505 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 1.9555555555555555) internal successors, (88), 25 states have internal predecessors, (88), 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 55 [2025-02-08 10:02:01,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:02:01,510 INFO L225 Difference]: With dead ends: 279 [2025-02-08 10:02:01,510 INFO L226 Difference]: Without dead ends: 278 [2025-02-08 10:02:01,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=860, Invalid=2110, Unknown=0, NotChecked=0, Total=2970 [2025-02-08 10:02:01,512 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 173 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 10:02:01,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 144 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 10:02:01,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2025-02-08 10:02:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 273. [2025-02-08 10:02:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 220 states have (on average 1.0727272727272728) internal successors, (236), 216 states have internal predecessors, (236), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2025-02-08 10:02:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 293 transitions. [2025-02-08 10:02:01,532 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 293 transitions. Word has length 55 [2025-02-08 10:02:01,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:02:01,532 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 293 transitions. [2025-02-08 10:02:01,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 1.9555555555555555) internal successors, (88), 25 states have internal predecessors, (88), 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) [2025-02-08 10:02:01,533 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 293 transitions. [2025-02-08 10:02:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-02-08 10:02:01,534 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:02:01,534 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2025-02-08 10:02:01,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 10:02:01,734 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 [2025-02-08 10:02:01,734 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:02:01,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:02:01,735 INFO L85 PathProgramCache]: Analyzing trace with hash -865929664, now seen corresponding path program 2 times [2025-02-08 10:02:01,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:02:01,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099667164] [2025-02-08 10:02:01,735 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 10:02:01,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:02:01,738 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 54 statements into 2 equivalence classes. [2025-02-08 10:02:01,743 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 10:02:01,743 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 10:02:01,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 10:02:01,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:02:01,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099667164] [2025-02-08 10:02:01,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099667164] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 10:02:01,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954036415] [2025-02-08 10:02:01,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 10:02:01,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 10:02:01,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:02:01,864 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 10:02:01,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 10:02:01,884 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 54 statements into 2 equivalence classes. [2025-02-08 10:02:01,894 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 54 of 54 statements. [2025-02-08 10:02:01,894 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 10:02:01,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:01,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 10:02:01,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 10:02:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 10:02:01,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 10:02:02,383 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-08 10:02:02,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954036415] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 10:02:02,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 10:02:02,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-02-08 10:02:02,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946231521] [2025-02-08 10:02:02,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 10:02:02,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 10:02:02,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:02:02,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 10:02:02,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-08 10:02:02,385 INFO L87 Difference]: Start difference. First operand 273 states and 293 transitions. Second operand has 24 states, 23 states have (on average 2.260869565217391) internal successors, (52), 24 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-08 10:02:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:02:02,453 INFO L93 Difference]: Finished difference Result 592 states and 677 transitions. [2025-02-08 10:02:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-08 10:02:02,453 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.260869565217391) internal successors, (52), 24 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 54 [2025-02-08 10:02:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:02:02,455 INFO L225 Difference]: With dead ends: 592 [2025-02-08 10:02:02,455 INFO L226 Difference]: Without dead ends: 368 [2025-02-08 10:02:02,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-02-08 10:02:02,456 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 10:02:02,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 10:02:02,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2025-02-08 10:02:02,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2025-02-08 10:02:02,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 299 states have (on average 1.0367892976588629) internal successors, (310), 290 states have internal predecessors, (310), 12 states have call successors, (12), 11 states have call predecessors, (12), 56 states have return successors, (66), 66 states have call predecessors, (66), 11 states have call successors, (66) [2025-02-08 10:02:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 388 transitions. [2025-02-08 10:02:02,473 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 388 transitions. Word has length 54 [2025-02-08 10:02:02,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:02:02,473 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 388 transitions. [2025-02-08 10:02:02,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.260869565217391) internal successors, (52), 24 states have internal predecessors, (52), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-02-08 10:02:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 388 transitions. [2025-02-08 10:02:02,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-02-08 10:02:02,477 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:02:02,477 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1] [2025-02-08 10:02:02,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 10:02:02,685 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 [2025-02-08 10:02:02,685 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:02:02,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:02:02,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1622781856, now seen corresponding path program 3 times [2025-02-08 10:02:02,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:02:02,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861232243] [2025-02-08 10:02:02,686 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 10:02:02,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:02:02,690 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 114 statements into 12 equivalence classes. [2025-02-08 10:02:02,704 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 109 of 114 statements. [2025-02-08 10:02:02,704 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 10:02:02,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:03,028 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-02-08 10:02:03,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:02:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861232243] [2025-02-08 10:02:03,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861232243] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 10:02:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113151807] [2025-02-08 10:02:03,028 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 10:02:03,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 10:02:03,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:02:03,030 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 10:02:03,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 10:02:03,056 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 114 statements into 12 equivalence classes. [2025-02-08 10:02:03,077 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 109 of 114 statements. [2025-02-08 10:02:03,078 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 10:02:03,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:03,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-08 10:02:03,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 10:02:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-02-08 10:02:03,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 10:02:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-02-08 10:02:06,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113151807] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 10:02:06,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 10:02:06,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2025-02-08 10:02:06,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052353711] [2025-02-08 10:02:06,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 10:02:06,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-08 10:02:06,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:02:06,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-08 10:02:06,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2025-02-08 10:02:06,758 INFO L87 Difference]: Start difference. First operand 368 states and 388 transitions. Second operand has 48 states, 47 states have (on average 2.127659574468085) internal successors, (100), 48 states have internal predecessors, (100), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2025-02-08 10:02:06,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:02:06,890 INFO L93 Difference]: Finished difference Result 1005 states and 1156 transitions. [2025-02-08 10:02:06,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-02-08 10:02:06,890 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.127659574468085) internal successors, (100), 48 states have internal predecessors, (100), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) Word has length 114 [2025-02-08 10:02:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:02:06,893 INFO L225 Difference]: With dead ends: 1005 [2025-02-08 10:02:06,893 INFO L226 Difference]: Without dead ends: 428 [2025-02-08 10:02:06,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2025-02-08 10:02:06,896 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 10:02:06,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 10:02:06,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2025-02-08 10:02:06,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2025-02-08 10:02:06,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 347 states have (on average 1.031700288184438) internal successors, (358), 338 states have internal predecessors, (358), 12 states have call successors, (12), 11 states have call predecessors, (12), 68 states have return successors, (78), 78 states have call predecessors, (78), 11 states have call successors, (78) [2025-02-08 10:02:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 448 transitions. [2025-02-08 10:02:06,916 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 448 transitions. Word has length 114 [2025-02-08 10:02:06,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:02:06,917 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 448 transitions. [2025-02-08 10:02:06,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.127659574468085) internal successors, (100), 48 states have internal predecessors, (100), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2025-02-08 10:02:06,917 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 448 transitions. [2025-02-08 10:02:06,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2025-02-08 10:02:06,919 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:02:06,919 INFO L218 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1] [2025-02-08 10:02:06,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 10:02:07,123 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 [2025-02-08 10:02:07,123 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 10:02:07,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:02:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash -112833376, now seen corresponding path program 4 times [2025-02-08 10:02:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:02:07,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281513500] [2025-02-08 10:02:07,124 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 10:02:07,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:02:07,130 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 234 statements into 2 equivalence classes. [2025-02-08 10:02:07,152 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 234 of 234 statements. [2025-02-08 10:02:07,152 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 10:02:07,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-02-08 10:02:08,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:02:08,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281513500] [2025-02-08 10:02:08,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281513500] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 10:02:08,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72869588] [2025-02-08 10:02:08,562 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 10:02:08,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 10:02:08,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:02:08,564 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 10:02:08,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 10:02:08,650 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 234 statements into 2 equivalence classes. [2025-02-08 10:02:08,690 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 234 of 234 statements. [2025-02-08 10:02:08,690 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 10:02:08,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:02:08,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-02-08 10:02:08,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 10:02:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 1265 proven. 112 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2025-02-08 10:02:09,540 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 10:02:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 1265 proven. 1058 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2025-02-08 10:02:52,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72869588] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 10:02:52,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 10:02:52,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 29, 51] total 101 [2025-02-08 10:02:52,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601511144] [2025-02-08 10:02:52,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 10:02:52,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2025-02-08 10:02:52,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:02:52,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2025-02-08 10:02:52,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1277, Invalid=8823, Unknown=0, NotChecked=0, Total=10100 [2025-02-08 10:02:52,698 INFO L87 Difference]: Start difference. First operand 428 states and 448 transitions. Second operand has 101 states, 99 states have (on average 2.9797979797979797) internal successors, (295), 99 states have internal predecessors, (295), 28 states have call successors, (29), 3 states have call predecessors, (29), 46 states have return successors, (69), 46 states have call predecessors, (69), 26 states have call successors, (69) [2025-02-08 10:02:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:02:53,285 INFO L93 Difference]: Finished difference Result 428 states and 448 transitions. [2025-02-08 10:02:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 10:02:53,288 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 99 states have (on average 2.9797979797979797) internal successors, (295), 99 states have internal predecessors, (295), 28 states have call successors, (29), 3 states have call predecessors, (29), 46 states have return successors, (69), 46 states have call predecessors, (69), 26 states have call successors, (69) Word has length 234 [2025-02-08 10:02:53,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:02:53,288 INFO L225 Difference]: With dead ends: 428 [2025-02-08 10:02:53,288 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 10:02:53,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 391 SyntacticMatches, 23 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5618 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1891, Invalid=10765, Unknown=0, NotChecked=0, Total=12656 [2025-02-08 10:02:53,299 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 176 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 10:02:53,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 125 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 10:02:53,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 10:02:53,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 10:02:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 10:02:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 10:02:53,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2025-02-08 10:02:53,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:02:53,307 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 10:02:53,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 99 states have (on average 2.9797979797979797) internal successors, (295), 99 states have internal predecessors, (295), 28 states have call successors, (29), 3 states have call predecessors, (29), 46 states have return successors, (69), 46 states have call predecessors, (69), 26 states have call successors, (69) [2025-02-08 10:02:53,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 10:02:53,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 10:02:53,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-02-08 10:02:53,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-02-08 10:02:53,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-02-08 10:02:53,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-02-08 10:02:53,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 10:02:53,511 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 [2025-02-08 10:02:53,514 INFO L422 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2025-02-08 10:02:53,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 10:02:54,249 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 10:02:54,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 10:02:54 BoogieIcfgContainer [2025-02-08 10:02:54,253 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 10:02:54,253 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 10:02:54,253 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 10:02:54,253 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 10:02:54,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 10:01:57" (3/4) ... [2025-02-08 10:02:54,255 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 10:02:54,259 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure id [2025-02-08 10:02:54,261 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-08 10:02:54,261 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 10:02:54,261 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 10:02:54,261 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 10:02:54,313 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 10:02:54,314 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 10:02:54,314 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 10:02:54,314 INFO L158 Benchmark]: Toolchain (without parser) took 56805.11ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 133.4MB in the beginning and 262.8MB in the end (delta: -129.4MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2025-02-08 10:02:54,315 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory was 127.9MB in the beginning and 127.6MB in the end (delta: 307.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 10:02:54,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 140.59ms. Allocated memory is still 167.8MB. Free memory was 133.4MB in the beginning and 123.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 10:02:54,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.81ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 122.2MB in the end (delta: 908.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 10:02:54,315 INFO L158 Benchmark]: Boogie Preprocessor took 16.15ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 120.8MB in the end (delta: 921.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 10:02:54,316 INFO L158 Benchmark]: IcfgBuilder took 158.37ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 110.5MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 10:02:54,316 INFO L158 Benchmark]: TraceAbstraction took 56407.65ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 110.1MB in the beginning and 270.8MB in the end (delta: -160.8MB). Peak memory consumption was 193.9MB. Max. memory is 16.1GB. [2025-02-08 10:02:54,316 INFO L158 Benchmark]: Witness Printer took 60.58ms. Allocated memory is still 352.3MB. Free memory was 270.8MB in the beginning and 262.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 10:02:54,317 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory was 127.9MB in the beginning and 127.6MB in the end (delta: 307.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 140.59ms. Allocated memory is still 167.8MB. Free memory was 133.4MB in the beginning and 123.1MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.81ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 122.2MB in the end (delta: 908.3kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.15ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 120.8MB in the end (delta: 921.6kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 158.37ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 110.5MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 56407.65ms. Allocated memory was 167.8MB in the beginning and 352.3MB in the end (delta: 184.5MB). Free memory was 110.1MB in the beginning and 270.8MB in the end (delta: -160.8MB). Peak memory consumption was 193.9MB. Max. memory is 16.1GB. * Witness Printer took 60.58ms. Allocated memory is still 352.3MB. Free memory was 270.8MB in the beginning and 262.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 55.6s, OverallIterations: 11, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 684 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 681 mSDsluCounter, 999 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 839 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 942 IncrementalHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 160 mSDtfsCounter, 942 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1219 GetRequests, 897 SyntacticMatches, 23 SemanticMatches, 299 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7321 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=428occurred in iteration=10, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 34 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 51.8s InterpolantComputationTime, 1114 NumberOfCodeBlocks, 1104 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 1620 ConstructedInterpolants, 0 QuantifiedInterpolants, 4394 SizeOfPredicates, 41 NumberOfNonLiveVariables, 1108 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 25 InterpolantComputations, 4 PerfectInterpolantSequences, 6566/10891 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 10:02:54,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE