./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 76fcbcb67039c0a78cfe1723cb1895d2882967fdc056ee8f9638db41d873b34f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 01:25:56,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 01:25:56,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 01:25:56,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 01:25:56,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 01:25:56,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 01:25:56,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 01:25:56,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 01:25:56,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 01:25:56,951 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 01:25:56,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 01:25:56,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 01:25:56,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 01:25:56,952 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 01:25:56,953 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:25:56,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:25:56,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 01:25:56,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 01:25:56,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 01:25:56,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 01:25:56,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 01:25:56,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 01:25:56,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 01:25:56,955 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76fcbcb67039c0a78cfe1723cb1895d2882967fdc056ee8f9638db41d873b34f [2025-01-10 01:25:57,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 01:25:57,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 01:25:57,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 01:25:57,174 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 01:25:57,174 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 01:25:57,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo_step2-2.c [2025-01-10 01:25:58,409 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19273e054/5100b52d43ff4b10b2b7515cedb4393b/FLAGc48b2e62d [2025-01-10 01:25:58,674 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 01:25:58,680 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-2.c [2025-01-10 01:25:58,690 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19273e054/5100b52d43ff4b10b2b7515cedb4393b/FLAGc48b2e62d [2025-01-10 01:25:58,735 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19273e054/5100b52d43ff4b10b2b7515cedb4393b [2025-01-10 01:25:58,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 01:25:58,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 01:25:58,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 01:25:58,740 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 01:25:58,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 01:25:58,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22060048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58, skipping insertion in model container [2025-01-10 01:25:58,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 01:25:58,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:25:58,850 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 01:25:58,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:25:58,870 INFO L204 MainTranslator]: Completed translation [2025-01-10 01:25:58,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58 WrapperNode [2025-01-10 01:25:58,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 01:25:58,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 01:25:58,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 01:25:58,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 01:25:58,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,890 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2025-01-10 01:25:58,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 01:25:58,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 01:25:58,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 01:25:58,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 01:25:58,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,900 INFO L175 MemorySlicer]: No memory access in input program. [2025-01-10 01:25:58,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,901 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,902 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,906 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 01:25:58,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 01:25:58,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 01:25:58,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 01:25:58,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (1/1) ... [2025-01-10 01:25:58,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:25:58,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:25:58,950 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) [2025-01-10 01:25:58,957 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 [2025-01-10 01:25:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 01:25:58,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 01:25:59,015 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 01:25:59,016 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 01:25:59,051 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-01-10 01:25:59,052 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 01:25:59,057 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 01:25:59,058 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 01:25:59,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:25:59 BoogieIcfgContainer [2025-01-10 01:25:59,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 01:25:59,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 01:25:59,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 01:25:59,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 01:25:59,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:25:58" (1/3) ... [2025-01-10 01:25:59,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217319b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:25:59, skipping insertion in model container [2025-01-10 01:25:59,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:25:58" (2/3) ... [2025-01-10 01:25:59,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217319b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:25:59, skipping insertion in model container [2025-01-10 01:25:59,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:25:59" (3/3) ... [2025-01-10 01:25:59,065 INFO L128 eAbstractionObserver]: Analyzing ICFG Cairo_step2-2.c [2025-01-10 01:25:59,076 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 01:25:59,077 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Cairo_step2-2.c that has 1 procedures, 12 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-01-10 01:25:59,111 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 01:25:59,122 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;@6973abf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 01:25:59,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-10 01:25:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:59,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-01-10 01:25:59,131 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:25:59,131 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 01:25:59,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:25:59,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:25:59,136 INFO L85 PathProgramCache]: Analyzing trace with hash 28693827, now seen corresponding path program 1 times [2025-01-10 01:25:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:25:59,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920728731] [2025-01-10 01:25:59,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:25:59,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:25:59,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 01:25:59,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 01:25:59,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:25:59,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:25:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:25:59,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:25:59,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920728731] [2025-01-10 01:25:59,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920728731] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:25:59,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:25:59,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 01:25:59,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185412044] [2025-01-10 01:25:59,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:25:59,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:25:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:25:59,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:25:59,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:25:59,288 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:59,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:25:59,316 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2025-01-10 01:25:59,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:25:59,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-01-10 01:25:59,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:25:59,324 INFO L225 Difference]: With dead ends: 20 [2025-01-10 01:25:59,324 INFO L226 Difference]: Without dead ends: 11 [2025-01-10 01:25:59,326 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 [2025-01-10 01:25:59,328 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:25:59,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:25:59,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2025-01-10 01:25:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2025-01-10 01:25:59,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 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) [2025-01-10 01:25:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2025-01-10 01:25:59,350 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2025-01-10 01:25:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:25:59,350 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2025-01-10 01:25:59,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2025-01-10 01:25:59,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-01-10 01:25:59,351 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:25:59,351 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 01:25:59,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 01:25:59,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:25:59,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:25:59,352 INFO L85 PathProgramCache]: Analyzing trace with hash 889508680, now seen corresponding path program 1 times [2025-01-10 01:25:59,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:25:59,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267582905] [2025-01-10 01:25:59,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:25:59,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:25:59,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 01:25:59,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 01:25:59,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:25:59,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:25:59,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:25:59,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:25:59,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267582905] [2025-01-10 01:25:59,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267582905] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:25:59,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:25:59,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 01:25:59,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945734958] [2025-01-10 01:25:59,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:25:59,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:25:59,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:25:59,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:25:59,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:25:59,379 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:59,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:25:59,399 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2025-01-10 01:25:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:25:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-01-10 01:25:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:25:59,400 INFO L225 Difference]: With dead ends: 10 [2025-01-10 01:25:59,400 INFO L226 Difference]: Without dead ends: 9 [2025-01-10 01:25:59,401 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 [2025-01-10 01:25:59,401 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:25:59,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:25:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2025-01-10 01:25:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-01-10 01:25:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:59,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2025-01-10 01:25:59,407 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2025-01-10 01:25:59,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:25:59,407 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2025-01-10 01:25:59,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2025-01-10 01:25:59,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 01:25:59,407 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:25:59,407 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-01-10 01:25:59,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 01:25:59,408 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:25:59,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:25:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash 119350826, now seen corresponding path program 1 times [2025-01-10 01:25:59,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:25:59,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849639926] [2025-01-10 01:25:59,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:25:59,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:25:59,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 01:25:59,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 01:25:59,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:25:59,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:25:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:25:59,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:25:59,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849639926] [2025-01-10 01:25:59,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849639926] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:25:59,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3225699] [2025-01-10 01:25:59,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:25:59,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:25:59,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:25:59,452 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) [2025-01-10 01:25:59,454 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 [2025-01-10 01:25:59,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 01:25:59,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 01:25:59,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:25:59,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:25:59,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 01:25:59,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:25:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:25:59,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:25:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:25:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3225699] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:25:59,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:25:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-01-10 01:25:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359786165] [2025-01-10 01:25:59,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:25:59,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:25:59,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:25:59,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:25:59,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:25:59,543 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:25:59,570 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2025-01-10 01:25:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 01:25:59,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-01-10 01:25:59,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:25:59,571 INFO L225 Difference]: With dead ends: 19 [2025-01-10 01:25:59,571 INFO L226 Difference]: Without dead ends: 18 [2025-01-10 01:25:59,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:25:59,572 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:25:59,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:25:59,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-01-10 01:25:59,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-01-10 01:25:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2025-01-10 01:25:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2025-01-10 01:25:59,575 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2025-01-10 01:25:59,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:25:59,576 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2025-01-10 01:25:59,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:25:59,576 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2025-01-10 01:25:59,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-01-10 01:25:59,576 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:25:59,576 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2025-01-10 01:25:59,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 01:25:59,781 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 [2025-01-10 01:25:59,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:25:59,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:25:59,782 INFO L85 PathProgramCache]: Analyzing trace with hash 597648003, now seen corresponding path program 2 times [2025-01-10 01:25:59,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:25:59,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937753120] [2025-01-10 01:25:59,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:25:59,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:25:59,788 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-01-10 01:25:59,794 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 01:25:59,794 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:25:59,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:25:59,891 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:25:59,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:25:59,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937753120] [2025-01-10 01:25:59,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937753120] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:25:59,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799236902] [2025-01-10 01:25:59,892 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:25:59,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:25:59,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:25:59,899 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) [2025-01-10 01:25:59,901 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 [2025-01-10 01:25:59,918 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-01-10 01:25:59,923 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 01:25:59,923 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:25:59,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:25:59,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 01:25:59,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:25:59,954 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:25:59,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:26:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:00,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799236902] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:26:00,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:26:00,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-01-10 01:26:00,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653641] [2025-01-10 01:26:00,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:26:00,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 01:26:00,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:26:00,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 01:26:00,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-01-10 01:26:00,030 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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) [2025-01-10 01:26:00,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:26:00,087 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2025-01-10 01:26:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 01:26:00,087 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2025-01-10 01:26:00,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:26:00,088 INFO L225 Difference]: With dead ends: 37 [2025-01-10 01:26:00,088 INFO L226 Difference]: Without dead ends: 36 [2025-01-10 01:26:00,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-01-10 01:26:00,088 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:26:00,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 01:26:00,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-01-10 01:26:00,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-01-10 01:26:00,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 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) [2025-01-10 01:26:00,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2025-01-10 01:26:00,093 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 17 [2025-01-10 01:26:00,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:26:00,093 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2025-01-10 01:26:00,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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) [2025-01-10 01:26:00,093 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2025-01-10 01:26:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-01-10 01:26:00,094 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:26:00,094 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1] [2025-01-10 01:26:00,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 01:26:00,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:26:00,298 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:26:00,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:26:00,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1284518499, now seen corresponding path program 3 times [2025-01-10 01:26:00,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:26:00,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122435793] [2025-01-10 01:26:00,299 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:26:00,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:26:00,305 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 11 equivalence classes. [2025-01-10 01:26:00,313 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 35 of 35 statements. [2025-01-10 01:26:00,314 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 01:26:00,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:00,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:26:00,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122435793] [2025-01-10 01:26:00,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122435793] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:26:00,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421717916] [2025-01-10 01:26:00,509 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:26:00,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:26:00,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:26:00,511 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) [2025-01-10 01:26:00,512 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 [2025-01-10 01:26:00,529 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 11 equivalence classes. [2025-01-10 01:26:00,538 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 35 of 35 statements. [2025-01-10 01:26:00,538 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 01:26:00,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:00,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-10 01:26:00,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:26:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:00,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:26:00,815 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:00,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421717916] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:26:00,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:26:00,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2025-01-10 01:26:00,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605720938] [2025-01-10 01:26:00,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:26:00,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 01:26:00,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:26:00,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 01:26:00,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-01-10 01:26:00,817 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 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) [2025-01-10 01:26:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:26:00,898 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2025-01-10 01:26:00,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-10 01:26:00,899 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2025-01-10 01:26:00,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:26:00,900 INFO L225 Difference]: With dead ends: 73 [2025-01-10 01:26:00,900 INFO L226 Difference]: Without dead ends: 72 [2025-01-10 01:26:00,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-01-10 01:26:00,901 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 01:26:00,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 01:26:00,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-01-10 01:26:00,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-01-10 01:26:00,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.0140845070422535) internal successors, (72), 71 states have internal predecessors, (72), 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) [2025-01-10 01:26:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2025-01-10 01:26:00,908 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 35 [2025-01-10 01:26:00,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:26:00,908 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2025-01-10 01:26:00,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 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) [2025-01-10 01:26:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2025-01-10 01:26:00,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-01-10 01:26:00,909 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:26:00,909 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1, 1] [2025-01-10 01:26:00,916 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 [2025-01-10 01:26:01,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:26:01,110 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:26:01,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:26:01,111 INFO L85 PathProgramCache]: Analyzing trace with hash 728705571, now seen corresponding path program 4 times [2025-01-10 01:26:01,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:26:01,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032747676] [2025-01-10 01:26:01,111 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:26:01,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:26:01,118 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 71 statements into 2 equivalence classes. [2025-01-10 01:26:01,130 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-01-10 01:26:01,130 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 01:26:01,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:01,579 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:01,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:26:01,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032747676] [2025-01-10 01:26:01,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032747676] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:26:01,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052916945] [2025-01-10 01:26:01,579 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:26:01,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:26:01,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:26:01,583 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) [2025-01-10 01:26:01,584 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 [2025-01-10 01:26:01,601 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 71 statements into 2 equivalence classes. [2025-01-10 01:26:01,614 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-01-10 01:26:01,614 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-10 01:26:01,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:01,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-10 01:26:01,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:26:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:01,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:26:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:02,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052916945] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:26:02,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:26:02,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2025-01-10 01:26:02,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810679008] [2025-01-10 01:26:02,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:26:02,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-01-10 01:26:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:26:02,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-01-10 01:26:02,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-01-10 01:26:02,509 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand has 48 states, 47 states have (on average 2.978723404255319) internal successors, (140), 48 states have internal predecessors, (140), 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) [2025-01-10 01:26:02,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:26:02,813 INFO L93 Difference]: Finished difference Result 145 states and 168 transitions. [2025-01-10 01:26:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-10 01:26:02,814 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.978723404255319) internal successors, (140), 48 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2025-01-10 01:26:02,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:26:02,815 INFO L225 Difference]: With dead ends: 145 [2025-01-10 01:26:02,815 INFO L226 Difference]: Without dead ends: 144 [2025-01-10 01:26:02,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-01-10 01:26:02,820 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 01:26:02,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 01:26:02,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2025-01-10 01:26:02,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2025-01-10 01:26:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.006993006993007) internal successors, (144), 143 states have internal predecessors, (144), 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) [2025-01-10 01:26:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2025-01-10 01:26:02,843 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 71 [2025-01-10 01:26:02,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:26:02,843 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2025-01-10 01:26:02,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.978723404255319) internal successors, (140), 48 states have internal predecessors, (140), 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) [2025-01-10 01:26:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2025-01-10 01:26:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-01-10 01:26:02,845 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:26:02,845 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 1, 1, 1, 1] [2025-01-10 01:26:02,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 01:26:03,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-01-10 01:26:03,046 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:26:03,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:26:03,047 INFO L85 PathProgramCache]: Analyzing trace with hash 334133667, now seen corresponding path program 5 times [2025-01-10 01:26:03,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:26:03,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785453387] [2025-01-10 01:26:03,047 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:26:03,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:26:03,064 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 143 statements into 47 equivalence classes. [2025-01-10 01:26:03,159 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 143 of 143 statements. [2025-01-10 01:26:03,159 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-01-10 01:26:03,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:04,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:26:04,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785453387] [2025-01-10 01:26:04,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785453387] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:26:04,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464221035] [2025-01-10 01:26:04,722 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:26:04,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:26:04,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:26:04,725 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) [2025-01-10 01:26:04,728 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 [2025-01-10 01:26:04,747 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 143 statements into 47 equivalence classes. [2025-01-10 01:26:04,807 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 143 of 143 statements. [2025-01-10 01:26:04,807 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-01-10 01:26:04,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:04,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-01-10 01:26:04,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:26:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:05,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:26:07,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:07,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464221035] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:26:07,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:26:07,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2025-01-10 01:26:07,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510328074] [2025-01-10 01:26:07,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:26:07,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-01-10 01:26:07,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:26:07,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-01-10 01:26:07,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-01-10 01:26:07,529 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand has 96 states, 95 states have (on average 2.9894736842105263) internal successors, (284), 96 states have internal predecessors, (284), 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) [2025-01-10 01:26:07,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:26:07,890 INFO L93 Difference]: Finished difference Result 289 states and 336 transitions. [2025-01-10 01:26:07,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-01-10 01:26:07,891 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.9894736842105263) internal successors, (284), 96 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2025-01-10 01:26:07,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:26:07,892 INFO L225 Difference]: With dead ends: 289 [2025-01-10 01:26:07,892 INFO L226 Difference]: Without dead ends: 288 [2025-01-10 01:26:07,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-01-10 01:26:07,894 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 01:26:07,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 01:26:07,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2025-01-10 01:26:07,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2025-01-10 01:26:07,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.0034843205574913) internal successors, (288), 287 states have internal predecessors, (288), 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) [2025-01-10 01:26:07,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 288 transitions. [2025-01-10 01:26:07,919 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 288 transitions. Word has length 143 [2025-01-10 01:26:07,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:26:07,919 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 288 transitions. [2025-01-10 01:26:07,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.9894736842105263) internal successors, (284), 96 states have internal predecessors, (284), 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) [2025-01-10 01:26:07,920 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 288 transitions. [2025-01-10 01:26:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2025-01-10 01:26:07,922 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:26:07,922 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 1, 1, 1, 1] [2025-01-10 01:26:07,935 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 [2025-01-10 01:26:08,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:26:08,127 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:26:08,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:26:08,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1978230621, now seen corresponding path program 6 times [2025-01-10 01:26:08,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:26:08,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926450008] [2025-01-10 01:26:08,128 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 01:26:08,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:26:08,140 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 287 statements into 95 equivalence classes. [2025-01-10 01:26:08,251 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 287 of 287 statements. [2025-01-10 01:26:08,251 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-01-10 01:26:08,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:13,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:26:13,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926450008] [2025-01-10 01:26:13,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926450008] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:26:13,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114482047] [2025-01-10 01:26:13,193 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 01:26:13,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:26:13,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:26:13,197 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) [2025-01-10 01:26:13,198 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 [2025-01-10 01:26:13,221 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 287 statements into 95 equivalence classes. [2025-01-10 01:26:13,449 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 287 of 287 statements. [2025-01-10 01:26:13,449 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-01-10 01:26:13,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:13,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-01-10 01:26:13,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:26:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:14,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:26:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:23,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114482047] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:26:23,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:26:23,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2025-01-10 01:26:23,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91032515] [2025-01-10 01:26:23,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:26:23,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2025-01-10 01:26:23,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:26:23,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2025-01-10 01:26:23,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-01-10 01:26:23,070 INFO L87 Difference]: Start difference. First operand 288 states and 288 transitions. Second operand has 192 states, 191 states have (on average 2.994764397905759) internal successors, (572), 192 states have internal predecessors, (572), 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) [2025-01-10 01:26:24,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:26:24,056 INFO L93 Difference]: Finished difference Result 577 states and 672 transitions. [2025-01-10 01:26:24,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2025-01-10 01:26:24,057 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.994764397905759) internal successors, (572), 192 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2025-01-10 01:26:24,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:26:24,059 INFO L225 Difference]: With dead ends: 577 [2025-01-10 01:26:24,059 INFO L226 Difference]: Without dead ends: 576 [2025-01-10 01:26:24,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 477 SyntacticMatches, 1 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2025-01-10 01:26:24,062 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 01:26:24,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 01:26:24,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2025-01-10 01:26:24,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2025-01-10 01:26:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.0017391304347827) internal successors, (576), 575 states have internal predecessors, (576), 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) [2025-01-10 01:26:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 576 transitions. [2025-01-10 01:26:24,078 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 576 transitions. Word has length 287 [2025-01-10 01:26:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:26:24,078 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 576 transitions. [2025-01-10 01:26:24,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.994764397905759) internal successors, (572), 192 states have internal predecessors, (572), 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) [2025-01-10 01:26:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 576 transitions. [2025-01-10 01:26:24,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2025-01-10 01:26:24,088 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:26:24,088 INFO L218 NwaCegarLoop]: trace histogram [191, 190, 190, 1, 1, 1, 1] [2025-01-10 01:26:24,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 01:26:24,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-01-10 01:26:24,289 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:26:24,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:26:24,290 INFO L85 PathProgramCache]: Analyzing trace with hash 491050659, now seen corresponding path program 7 times [2025-01-10 01:26:24,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:26:24,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163056697] [2025-01-10 01:26:24,290 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-10 01:26:24,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:26:24,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 575 statements into 1 equivalence classes. [2025-01-10 01:26:24,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 575 of 575 statements. [2025-01-10 01:26:24,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:26:24,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:41,227 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:41,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:26:41,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163056697] [2025-01-10 01:26:41,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163056697] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:26:41,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996432993] [2025-01-10 01:26:41,227 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-10 01:26:41,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:26:41,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:26:41,229 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) [2025-01-10 01:26:41,231 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 [2025-01-10 01:26:41,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 575 statements into 1 equivalence classes. [2025-01-10 01:26:41,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 575 of 575 statements. [2025-01-10 01:26:41,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:26:41,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:26:41,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 192 conjuncts are in the unsatisfiable core [2025-01-10 01:26:41,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:26:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:26:41,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:27:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:27:14,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996432993] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:27:14,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:27:14,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2025-01-10 01:27:14,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595476652] [2025-01-10 01:27:14,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:27:14,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2025-01-10 01:27:14,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:27:14,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2025-01-10 01:27:14,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2025-01-10 01:27:14,931 INFO L87 Difference]: Start difference. First operand 576 states and 576 transitions. Second operand has 384 states, 383 states have (on average 2.9973890339425586) internal successors, (1148), 384 states have internal predecessors, (1148), 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) [2025-01-10 01:27:19,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 01:27:19,906 INFO L93 Difference]: Finished difference Result 1153 states and 1344 transitions. [2025-01-10 01:27:19,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2025-01-10 01:27:19,907 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 2.9973890339425586) internal successors, (1148), 384 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 575 [2025-01-10 01:27:19,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 01:27:19,911 INFO L225 Difference]: With dead ends: 1153 [2025-01-10 01:27:19,911 INFO L226 Difference]: Without dead ends: 1152 [2025-01-10 01:27:19,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1340 GetRequests, 957 SyntacticMatches, 1 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 43.0s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2025-01-10 01:27:19,915 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-10 01:27:19,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-10 01:27:19,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2025-01-10 01:27:19,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2025-01-10 01:27:19,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1151 states have (on average 1.000868809730669) internal successors, (1152), 1151 states have internal predecessors, (1152), 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) [2025-01-10 01:27:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1152 transitions. [2025-01-10 01:27:19,940 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1152 transitions. Word has length 575 [2025-01-10 01:27:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 01:27:19,940 INFO L471 AbstractCegarLoop]: Abstraction has 1152 states and 1152 transitions. [2025-01-10 01:27:19,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 2.9973890339425586) internal successors, (1148), 384 states have internal predecessors, (1148), 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) [2025-01-10 01:27:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1152 transitions. [2025-01-10 01:27:19,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2025-01-10 01:27:19,963 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 01:27:19,963 INFO L218 NwaCegarLoop]: trace histogram [383, 382, 382, 1, 1, 1, 1] [2025-01-10 01:27:19,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-10 01:27:20,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:27:20,167 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 01:27:20,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:27:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1861833379, now seen corresponding path program 8 times [2025-01-10 01:27:20,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:27:20,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837855149] [2025-01-10 01:27:20,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:27:20,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:27:20,189 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1151 statements into 2 equivalence classes. [2025-01-10 01:27:20,475 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 1151 of 1151 statements. [2025-01-10 01:27:20,475 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:27:20,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat