./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench/hard2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/hard2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 966f2b433cfe84d90040e5149c3cdda56fb59546e621a76bee869282a92c61d4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 13:48:10,011 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 13:48:10,054 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 13:48:10,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 13:48:10,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 13:48:10,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 13:48:10,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 13:48:10,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 13:48:10,086 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 13:48:10,087 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 13:48:10,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 13:48:10,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 13:48:10,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 13:48:10,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 13:48:10,087 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 13:48:10,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 13:48:10,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 13:48:10,087 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 13:48:10,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 13:48:10,088 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 13:48:10,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:48:10,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 13:48:10,089 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 13:48:10,090 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 966f2b433cfe84d90040e5149c3cdda56fb59546e621a76bee869282a92c61d4 [2025-02-06 13:48:10,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 13:48:10,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 13:48:10,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 13:48:10,284 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 13:48:10,284 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 13:48:10,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/hard2.c [2025-02-06 13:48:11,341 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c3a9f75a6/7a4f46c26ebe48eca44cbda64c44e6d3/FLAG1152f7783 [2025-02-06 13:48:11,630 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 13:48:11,630 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench/hard2.c [2025-02-06 13:48:11,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c3a9f75a6/7a4f46c26ebe48eca44cbda64c44e6d3/FLAG1152f7783 [2025-02-06 13:48:11,932 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c3a9f75a6/7a4f46c26ebe48eca44cbda64c44e6d3 [2025-02-06 13:48:11,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 13:48:11,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 13:48:11,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 13:48:11,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 13:48:11,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 13:48:11,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:48:11" (1/1) ... [2025-02-06 13:48:11,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b558041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:11, skipping insertion in model container [2025-02-06 13:48:11,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 01:48:11" (1/1) ... [2025-02-06 13:48:11,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 13:48:12,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:48:12,067 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 13:48:12,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 13:48:12,093 INFO L204 MainTranslator]: Completed translation [2025-02-06 13:48:12,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12 WrapperNode [2025-02-06 13:48:12,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 13:48:12,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 13:48:12,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 13:48:12,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 13:48:12,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,117 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2025-02-06 13:48:12,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 13:48:12,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 13:48:12,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 13:48:12,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 13:48:12,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,129 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-02-06 13:48:12,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,131 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 13:48:12,134 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 13:48:12,134 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 13:48:12,134 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 13:48:12,134 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (1/1) ... [2025-02-06 13:48:12,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 13:48:12,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:12,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 13:48:12,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 13:48:12,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 13:48:12,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 13:48:12,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 13:48:12,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 13:48:12,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 13:48:12,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 13:48:12,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 13:48:12,221 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 13:48:12,223 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 13:48:12,395 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2025-02-06 13:48:12,395 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 13:48:12,401 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 13:48:12,401 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 13:48:12,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:48:12 BoogieIcfgContainer [2025-02-06 13:48:12,401 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 13:48:12,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 13:48:12,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 13:48:12,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 13:48:12,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 01:48:11" (1/3) ... [2025-02-06 13:48:12,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c43f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:48:12, skipping insertion in model container [2025-02-06 13:48:12,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 01:48:12" (2/3) ... [2025-02-06 13:48:12,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c43f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 01:48:12, skipping insertion in model container [2025-02-06 13:48:12,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 01:48:12" (3/3) ... [2025-02-06 13:48:12,407 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2.c [2025-02-06 13:48:12,415 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 13:48:12,416 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2.c that has 2 procedures, 72 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2025-02-06 13:48:12,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 13:48:12,452 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;@190f9bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 13:48:12,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2025-02-06 13:48:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 39 states have (on average 1.7692307692307692) internal successors, (69), 63 states have internal predecessors, (69), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-06 13:48:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 13:48:12,457 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:12,458 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 13:48:12,458 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:12,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:12,461 INFO L85 PathProgramCache]: Analyzing trace with hash 94443775, now seen corresponding path program 1 times [2025-02-06 13:48:12,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:12,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744073258] [2025-02-06 13:48:12,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:12,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:12,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 13:48:12,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 13:48:12,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:12,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 13:48:12,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:12,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744073258] [2025-02-06 13:48:12,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744073258] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:12,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:12,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:48:12,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634740190] [2025-02-06 13:48:12,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:12,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 13:48:12,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:12,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 13:48:12,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 13:48:12,550 INFO L87 Difference]: Start difference. First operand has 72 states, 39 states have (on average 1.7692307692307692) internal successors, (69), 63 states have internal predecessors, (69), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:48:12,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:12,563 INFO L93 Difference]: Finished difference Result 141 states and 170 transitions. [2025-02-06 13:48:12,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 13:48:12,564 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-02-06 13:48:12,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:12,567 INFO L225 Difference]: With dead ends: 141 [2025-02-06 13:48:12,567 INFO L226 Difference]: Without dead ends: 64 [2025-02-06 13:48:12,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 13:48:12,570 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:12,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:48:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-02-06 13:48:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2025-02-06 13:48:12,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 57 states have internal predecessors, (60), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 13:48:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2025-02-06 13:48:12,594 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 5 [2025-02-06 13:48:12,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:12,595 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2025-02-06 13:48:12,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 13:48:12,595 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2025-02-06 13:48:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 13:48:12,596 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:12,596 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:12,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 13:48:12,596 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:12,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -896601631, now seen corresponding path program 1 times [2025-02-06 13:48:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:12,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410653364] [2025-02-06 13:48:12,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:12,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:12,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 13:48:12,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 13:48:12,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:12,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:12,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836490456] [2025-02-06 13:48:12,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:12,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:12,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:12,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:12,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 13:48:12,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 13:48:12,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 13:48:12,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:12,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:12,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:12,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 13:48:12,706 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:12,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:12,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410653364] [2025-02-06 13:48:12,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:12,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836490456] [2025-02-06 13:48:12,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836490456] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:12,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:12,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:48:12,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846720435] [2025-02-06 13:48:12,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:12,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:48:12,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:12,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:48:12,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:12,709 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 13:48:12,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:12,775 INFO L93 Difference]: Finished difference Result 136 states and 157 transitions. [2025-02-06 13:48:12,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:48:12,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-02-06 13:48:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:12,776 INFO L225 Difference]: With dead ends: 136 [2025-02-06 13:48:12,776 INFO L226 Difference]: Without dead ends: 87 [2025-02-06 13:48:12,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:12,777 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 16 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:12,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 94 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:12,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-02-06 13:48:12,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2025-02-06 13:48:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 50 states have (on average 1.66) internal successors, (83), 73 states have internal predecessors, (83), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 13:48:12,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 103 transitions. [2025-02-06 13:48:12,784 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 103 transitions. Word has length 14 [2025-02-06 13:48:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:12,785 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 103 transitions. [2025-02-06 13:48:12,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 13:48:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 103 transitions. [2025-02-06 13:48:12,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 13:48:12,786 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:12,786 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:12,795 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 13:48:12,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:12,990 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:12,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:12,991 INFO L85 PathProgramCache]: Analyzing trace with hash -229025056, now seen corresponding path program 1 times [2025-02-06 13:48:12,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:12,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191456658] [2025-02-06 13:48:12,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:12,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:12,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 13:48:13,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 13:48:13,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:13,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 13:48:13,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:13,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191456658] [2025-02-06 13:48:13,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191456658] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:13,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:13,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:48:13,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085997183] [2025-02-06 13:48:13,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:13,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:48:13,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:13,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:48:13,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:13,069 INFO L87 Difference]: Start difference. First operand 85 states and 103 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 13:48:13,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:13,126 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2025-02-06 13:48:13,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:48:13,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2025-02-06 13:48:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:13,127 INFO L225 Difference]: With dead ends: 95 [2025-02-06 13:48:13,127 INFO L226 Difference]: Without dead ends: 93 [2025-02-06 13:48:13,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:13,128 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 17 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:13,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 105 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:48:13,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2025-02-06 13:48:13,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2025-02-06 13:48:13,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 50 states have (on average 1.62) internal successors, (81), 73 states have internal predecessors, (81), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 13:48:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 101 transitions. [2025-02-06 13:48:13,140 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 101 transitions. Word has length 22 [2025-02-06 13:48:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:13,140 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 101 transitions. [2025-02-06 13:48:13,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 13:48:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 101 transitions. [2025-02-06 13:48:13,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-06 13:48:13,141 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:13,141 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:13,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 13:48:13,141 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:13,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:13,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1490156662, now seen corresponding path program 1 times [2025-02-06 13:48:13,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:13,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816360424] [2025-02-06 13:48:13,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:13,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:13,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 13:48:13,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 13:48:13,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:13,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:13,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [359030417] [2025-02-06 13:48:13,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:13,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:13,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:13,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:13,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 13:48:13,195 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 13:48:13,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 13:48:13,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:13,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:13,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 13:48:13,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 13:48:13,234 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:13,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:13,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816360424] [2025-02-06 13:48:13,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:13,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359030417] [2025-02-06 13:48:13,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359030417] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:13,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:13,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:48:13,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676625161] [2025-02-06 13:48:13,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:13,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:48:13,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:13,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:48:13,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:13,235 INFO L87 Difference]: Start difference. First operand 85 states and 101 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 13:48:13,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:13,286 INFO L93 Difference]: Finished difference Result 120 states and 145 transitions. [2025-02-06 13:48:13,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:48:13,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2025-02-06 13:48:13,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:13,287 INFO L225 Difference]: With dead ends: 120 [2025-02-06 13:48:13,287 INFO L226 Difference]: Without dead ends: 116 [2025-02-06 13:48:13,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:13,288 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:13,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 87 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:48:13,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-02-06 13:48:13,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 102. [2025-02-06 13:48:13,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 65 states have (on average 1.6) internal successors, (104), 88 states have internal predecessors, (104), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-06 13:48:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 128 transitions. [2025-02-06 13:48:13,296 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 128 transitions. Word has length 23 [2025-02-06 13:48:13,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:13,296 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 128 transitions. [2025-02-06 13:48:13,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 13:48:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 128 transitions. [2025-02-06 13:48:13,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 13:48:13,296 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:13,297 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:13,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 13:48:13,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:13,497 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:13,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:13,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1816443028, now seen corresponding path program 1 times [2025-02-06 13:48:13,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:13,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230171526] [2025-02-06 13:48:13,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:13,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:13,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 13:48:13,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 13:48:13,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:13,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:13,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [479144946] [2025-02-06 13:48:13,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:13,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:13,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:13,518 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:13,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 13:48:13,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 13:48:13,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 13:48:13,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:13,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:13,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:13,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 13:48:13,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:13,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:13,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230171526] [2025-02-06 13:48:13,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:13,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479144946] [2025-02-06 13:48:13,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479144946] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:13,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:13,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:48:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359041299] [2025-02-06 13:48:13,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:13,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:48:13,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:13,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:48:13,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:13,629 INFO L87 Difference]: Start difference. First operand 102 states and 128 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 13:48:13,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:13,672 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2025-02-06 13:48:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:48:13,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2025-02-06 13:48:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:13,673 INFO L225 Difference]: With dead ends: 114 [2025-02-06 13:48:13,673 INFO L226 Difference]: Without dead ends: 112 [2025-02-06 13:48:13,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:13,674 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 33 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:13,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 79 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:48:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-02-06 13:48:13,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2025-02-06 13:48:13,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.5606060606060606) internal successors, (103), 89 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-06 13:48:13,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2025-02-06 13:48:13,681 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 25 [2025-02-06 13:48:13,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:13,681 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2025-02-06 13:48:13,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 13:48:13,681 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2025-02-06 13:48:13,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 13:48:13,682 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:13,682 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:13,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 13:48:13,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:13,883 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:13,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:13,883 INFO L85 PathProgramCache]: Analyzing trace with hash 475159029, now seen corresponding path program 1 times [2025-02-06 13:48:13,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:13,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533613419] [2025-02-06 13:48:13,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:13,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:13,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 13:48:13,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 13:48:13,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:13,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 13:48:13,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:13,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533613419] [2025-02-06 13:48:13,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533613419] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:13,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:13,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:48:13,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329971812] [2025-02-06 13:48:13,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:13,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:48:13,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:13,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:48:13,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:48:13,954 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 13:48:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:14,112 INFO L93 Difference]: Finished difference Result 114 states and 140 transitions. [2025-02-06 13:48:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 13:48:14,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2025-02-06 13:48:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:14,113 INFO L225 Difference]: With dead ends: 114 [2025-02-06 13:48:14,113 INFO L226 Difference]: Without dead ends: 113 [2025-02-06 13:48:14,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:48:14,114 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 74 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:14,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 118 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:14,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-02-06 13:48:14,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2025-02-06 13:48:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 94 states have internal predecessors, (109), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-06 13:48:14,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 133 transitions. [2025-02-06 13:48:14,122 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 133 transitions. Word has length 26 [2025-02-06 13:48:14,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:14,122 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 133 transitions. [2025-02-06 13:48:14,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 13:48:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 133 transitions. [2025-02-06 13:48:14,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-06 13:48:14,123 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:14,123 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:14,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 13:48:14,123 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:14,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:14,124 INFO L85 PathProgramCache]: Analyzing trace with hash 744917397, now seen corresponding path program 1 times [2025-02-06 13:48:14,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:14,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058433101] [2025-02-06 13:48:14,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:14,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:14,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 13:48:14,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 13:48:14,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:14,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:14,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587252940] [2025-02-06 13:48:14,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:14,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:14,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:14,144 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:14,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 13:48:14,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 13:48:14,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 13:48:14,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:14,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:14,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:14,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-02-06 13:48:14,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:14,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058433101] [2025-02-06 13:48:14,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587252940] [2025-02-06 13:48:14,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587252940] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:14,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:14,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:48:14,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206048194] [2025-02-06 13:48:14,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:14,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:48:14,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:14,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:48:14,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:48:14,289 INFO L87 Difference]: Start difference. First operand 108 states and 133 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 13:48:14,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:14,364 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2025-02-06 13:48:14,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:48:14,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2025-02-06 13:48:14,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:14,365 INFO L225 Difference]: With dead ends: 123 [2025-02-06 13:48:14,365 INFO L226 Difference]: Without dead ends: 114 [2025-02-06 13:48:14,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:48:14,366 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 38 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:14,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 110 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:14,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-02-06 13:48:14,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2025-02-06 13:48:14,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 79 states have (on average 1.4177215189873418) internal successors, (112), 98 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-02-06 13:48:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2025-02-06 13:48:14,379 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 37 [2025-02-06 13:48:14,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:14,379 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2025-02-06 13:48:14,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 13:48:14,380 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2025-02-06 13:48:14,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-02-06 13:48:14,380 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:14,380 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:14,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 13:48:14,581 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,SelfDestructingSolverStorable6 [2025-02-06 13:48:14,581 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:14,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:14,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1617602857, now seen corresponding path program 1 times [2025-02-06 13:48:14,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:14,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284980230] [2025-02-06 13:48:14,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:14,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:14,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 13:48:14,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 13:48:14,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:14,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:14,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824152918] [2025-02-06 13:48:14,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:14,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:14,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:14,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:14,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 13:48:14,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 13:48:14,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 13:48:14,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:14,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:14,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:14,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-02-06 13:48:14,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:14,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:14,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284980230] [2025-02-06 13:48:14,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:14,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824152918] [2025-02-06 13:48:14,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824152918] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:14,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:14,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-02-06 13:48:14,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819731149] [2025-02-06 13:48:14,906 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:14,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:48:14,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:14,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:48:14,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:48:14,907 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 13:48:15,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:15,006 INFO L93 Difference]: Finished difference Result 190 states and 245 transitions. [2025-02-06 13:48:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:48:15,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2025-02-06 13:48:15,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:15,008 INFO L225 Difference]: With dead ends: 190 [2025-02-06 13:48:15,008 INFO L226 Difference]: Without dead ends: 186 [2025-02-06 13:48:15,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:48:15,009 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 59 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:15,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 99 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2025-02-06 13:48:15,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 174. [2025-02-06 13:48:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 130 states have (on average 1.4230769230769231) internal successors, (185), 149 states have internal predecessors, (185), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-02-06 13:48:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 231 transitions. [2025-02-06 13:48:15,024 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 231 transitions. Word has length 38 [2025-02-06 13:48:15,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:15,024 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 231 transitions. [2025-02-06 13:48:15,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 13:48:15,025 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 231 transitions. [2025-02-06 13:48:15,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-02-06 13:48:15,025 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:15,025 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:15,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 13:48:15,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:15,226 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:15,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:15,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1264859306, now seen corresponding path program 1 times [2025-02-06 13:48:15,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:15,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061870342] [2025-02-06 13:48:15,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:15,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:15,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-06 13:48:15,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 13:48:15,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:15,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-02-06 13:48:15,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:15,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061870342] [2025-02-06 13:48:15,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061870342] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:15,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:15,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:48:15,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735463672] [2025-02-06 13:48:15,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:15,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:48:15,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:15,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:48:15,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:48:15,340 INFO L87 Difference]: Start difference. First operand 174 states and 231 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 13:48:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:15,453 INFO L93 Difference]: Finished difference Result 179 states and 235 transitions. [2025-02-06 13:48:15,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:48:15,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2025-02-06 13:48:15,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:15,455 INFO L225 Difference]: With dead ends: 179 [2025-02-06 13:48:15,455 INFO L226 Difference]: Without dead ends: 164 [2025-02-06 13:48:15,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:48:15,455 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 17 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:15,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 130 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:15,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2025-02-06 13:48:15,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2025-02-06 13:48:15,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 122 states have (on average 1.4426229508196722) internal successors, (176), 141 states have internal predecessors, (176), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-02-06 13:48:15,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 218 transitions. [2025-02-06 13:48:15,473 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 218 transitions. Word has length 43 [2025-02-06 13:48:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:15,473 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 218 transitions. [2025-02-06 13:48:15,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 13:48:15,473 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 218 transitions. [2025-02-06 13:48:15,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-06 13:48:15,478 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:15,478 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:15,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 13:48:15,478 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:15,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:15,479 INFO L85 PathProgramCache]: Analyzing trace with hash 717749908, now seen corresponding path program 1 times [2025-02-06 13:48:15,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:15,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795575962] [2025-02-06 13:48:15,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:15,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:15,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 13:48:15,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 13:48:15,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:15,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 13:48:15,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:15,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795575962] [2025-02-06 13:48:15,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795575962] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:15,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937340844] [2025-02-06 13:48:15,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:15,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:15,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:15,546 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:15,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 13:48:15,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 13:48:15,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 13:48:15,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:15,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:15,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 13:48:15,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 13:48:15,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:15,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937340844] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:15,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:15,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-02-06 13:48:15,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58872382] [2025-02-06 13:48:15,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:15,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:48:15,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:15,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:48:15,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:48:15,612 INFO L87 Difference]: Start difference. First operand 164 states and 218 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-06 13:48:15,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:15,668 INFO L93 Difference]: Finished difference Result 247 states and 339 transitions. [2025-02-06 13:48:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:48:15,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2025-02-06 13:48:15,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:15,669 INFO L225 Difference]: With dead ends: 247 [2025-02-06 13:48:15,669 INFO L226 Difference]: Without dead ends: 245 [2025-02-06 13:48:15,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:48:15,670 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 43 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:15,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 124 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:48:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-02-06 13:48:15,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 225. [2025-02-06 13:48:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 176 states have (on average 1.4488636363636365) internal successors, (255), 194 states have internal predecessors, (255), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-02-06 13:48:15,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 313 transitions. [2025-02-06 13:48:15,681 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 313 transitions. Word has length 45 [2025-02-06 13:48:15,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:15,681 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 313 transitions. [2025-02-06 13:48:15,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-06 13:48:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 313 transitions. [2025-02-06 13:48:15,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-02-06 13:48:15,682 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:15,682 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:15,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:15,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 13:48:15,883 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:15,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:15,884 INFO L85 PathProgramCache]: Analyzing trace with hash 775410691, now seen corresponding path program 1 times [2025-02-06 13:48:15,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:15,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330983146] [2025-02-06 13:48:15,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:15,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:15,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 13:48:15,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 13:48:15,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:15,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 13:48:15,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:15,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330983146] [2025-02-06 13:48:15,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330983146] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:15,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136845184] [2025-02-06 13:48:15,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:15,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:15,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:15,956 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:15,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 13:48:15,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 13:48:15,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 13:48:15,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:15,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:15,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 13:48:15,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 13:48:16,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-06 13:48:16,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136845184] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:48:16,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:48:16,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-02-06 13:48:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101286740] [2025-02-06 13:48:16,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:16,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 13:48:16,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:16,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 13:48:16,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:48:16,077 INFO L87 Difference]: Start difference. First operand 225 states and 313 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-02-06 13:48:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:16,216 INFO L93 Difference]: Finished difference Result 371 states and 511 transitions. [2025-02-06 13:48:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 13:48:16,216 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 46 [2025-02-06 13:48:16,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:16,218 INFO L225 Difference]: With dead ends: 371 [2025-02-06 13:48:16,218 INFO L226 Difference]: Without dead ends: 369 [2025-02-06 13:48:16,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:48:16,218 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 101 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:16,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 239 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:16,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2025-02-06 13:48:16,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 325. [2025-02-06 13:48:16,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 260 states have (on average 1.4461538461538461) internal successors, (376), 278 states have internal predecessors, (376), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-06 13:48:16,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 466 transitions. [2025-02-06 13:48:16,234 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 466 transitions. Word has length 46 [2025-02-06 13:48:16,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:16,234 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 466 transitions. [2025-02-06 13:48:16,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-02-06 13:48:16,234 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 466 transitions. [2025-02-06 13:48:16,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-06 13:48:16,235 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:16,235 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2025-02-06 13:48:16,241 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 [2025-02-06 13:48:16,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:16,439 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:16,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash -593271587, now seen corresponding path program 2 times [2025-02-06 13:48:16,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:16,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819368141] [2025-02-06 13:48:16,440 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:16,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:16,444 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 61 statements into 2 equivalence classes. [2025-02-06 13:48:16,454 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 61 of 61 statements. [2025-02-06 13:48:16,454 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:16,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:16,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [746448795] [2025-02-06 13:48:16,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:16,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:16,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:16,459 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:16,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 13:48:16,481 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 61 statements into 2 equivalence classes. [2025-02-06 13:48:16,493 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 61 of 61 statements. [2025-02-06 13:48:16,494 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:16,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:16,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 13:48:16,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 13:48:16,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:16,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:16,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819368141] [2025-02-06 13:48:16,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:16,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746448795] [2025-02-06 13:48:16,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746448795] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:16,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:16,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-02-06 13:48:16,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105385283] [2025-02-06 13:48:16,726 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:16,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:48:16,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:16,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:48:16,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:48:16,727 INFO L87 Difference]: Start difference. First operand 325 states and 466 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-02-06 13:48:16,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:16,918 INFO L93 Difference]: Finished difference Result 420 states and 600 transitions. [2025-02-06 13:48:16,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:48:16,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 61 [2025-02-06 13:48:16,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:16,920 INFO L225 Difference]: With dead ends: 420 [2025-02-06 13:48:16,920 INFO L226 Difference]: Without dead ends: 416 [2025-02-06 13:48:16,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:48:16,921 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 66 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:16,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 139 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 13:48:16,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2025-02-06 13:48:16,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 325. [2025-02-06 13:48:16,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 260 states have (on average 1.4384615384615385) internal successors, (374), 278 states have internal predecessors, (374), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-06 13:48:16,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 464 transitions. [2025-02-06 13:48:16,952 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 464 transitions. Word has length 61 [2025-02-06 13:48:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:16,953 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 464 transitions. [2025-02-06 13:48:16,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-02-06 13:48:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 464 transitions. [2025-02-06 13:48:16,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-02-06 13:48:16,953 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:16,954 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:16,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 13:48:17,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:17,154 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:17,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:17,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1296124267, now seen corresponding path program 1 times [2025-02-06 13:48:17,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:17,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638281092] [2025-02-06 13:48:17,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:17,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:17,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-06 13:48:17,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-06 13:48:17,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:17,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2025-02-06 13:48:17,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:17,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638281092] [2025-02-06 13:48:17,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638281092] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:17,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:17,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 13:48:17,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410401197] [2025-02-06 13:48:17,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:17,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:48:17,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:17,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:48:17,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:17,213 INFO L87 Difference]: Start difference. First operand 325 states and 464 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:17,290 INFO L93 Difference]: Finished difference Result 325 states and 464 transitions. [2025-02-06 13:48:17,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:48:17,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2025-02-06 13:48:17,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:17,292 INFO L225 Difference]: With dead ends: 325 [2025-02-06 13:48:17,295 INFO L226 Difference]: Without dead ends: 324 [2025-02-06 13:48:17,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 13:48:17,296 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:17,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 96 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:17,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2025-02-06 13:48:17,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2025-02-06 13:48:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 260 states have (on average 1.4153846153846155) internal successors, (368), 277 states have internal predecessors, (368), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-06 13:48:17,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 458 transitions. [2025-02-06 13:48:17,309 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 458 transitions. Word has length 68 [2025-02-06 13:48:17,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:17,309 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 458 transitions. [2025-02-06 13:48:17,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:17,310 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 458 transitions. [2025-02-06 13:48:17,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-06 13:48:17,310 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:17,310 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:17,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 13:48:17,310 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:17,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:17,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1525146626, now seen corresponding path program 1 times [2025-02-06 13:48:17,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:17,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653418653] [2025-02-06 13:48:17,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:17,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:17,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 13:48:17,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 13:48:17,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:17,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:17,438 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 13:48:17,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:17,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653418653] [2025-02-06 13:48:17,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653418653] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:17,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350308785] [2025-02-06 13:48:17,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:17,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:17,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:17,442 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:17,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 13:48:17,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 13:48:17,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 13:48:17,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:17,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:17,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:48:17,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 13:48:17,604 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:17,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350308785] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:17,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:17,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-02-06 13:48:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886708252] [2025-02-06 13:48:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:17,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:48:17,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:17,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:48:17,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 13:48:17,605 INFO L87 Difference]: Start difference. First operand 324 states and 458 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 13:48:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:17,676 INFO L93 Difference]: Finished difference Result 345 states and 476 transitions. [2025-02-06 13:48:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:48:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2025-02-06 13:48:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:17,678 INFO L225 Difference]: With dead ends: 345 [2025-02-06 13:48:17,678 INFO L226 Difference]: Without dead ends: 344 [2025-02-06 13:48:17,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 13:48:17,679 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 30 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:17,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 101 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:17,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-02-06 13:48:17,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 324. [2025-02-06 13:48:17,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 260 states have (on average 1.4038461538461537) internal successors, (365), 277 states have internal predecessors, (365), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-06 13:48:17,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 455 transitions. [2025-02-06 13:48:17,700 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 455 transitions. Word has length 69 [2025-02-06 13:48:17,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:17,701 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 455 transitions. [2025-02-06 13:48:17,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-06 13:48:17,701 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 455 transitions. [2025-02-06 13:48:17,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-06 13:48:17,701 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:17,702 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:17,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 13:48:17,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:17,902 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:17,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:17,903 INFO L85 PathProgramCache]: Analyzing trace with hash -34905165, now seen corresponding path program 1 times [2025-02-06 13:48:17,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:17,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149976379] [2025-02-06 13:48:17,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:17,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:17,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 13:48:17,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 13:48:17,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:17,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 13:48:18,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:18,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149976379] [2025-02-06 13:48:18,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149976379] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:18,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80758136] [2025-02-06 13:48:18,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:18,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:18,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:18,027 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:18,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 13:48:18,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 13:48:18,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 13:48:18,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:18,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:18,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 13:48:18,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2025-02-06 13:48:18,214 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:18,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80758136] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:18,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:18,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-02-06 13:48:18,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365465143] [2025-02-06 13:48:18,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:18,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:48:18,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:18,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:48:18,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:48:18,216 INFO L87 Difference]: Start difference. First operand 324 states and 455 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:18,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:18,330 INFO L93 Difference]: Finished difference Result 344 states and 477 transitions. [2025-02-06 13:48:18,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:48:18,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2025-02-06 13:48:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:18,332 INFO L225 Difference]: With dead ends: 344 [2025-02-06 13:48:18,332 INFO L226 Difference]: Without dead ends: 343 [2025-02-06 13:48:18,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:48:18,332 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 68 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:18,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 88 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:18,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2025-02-06 13:48:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 333. [2025-02-06 13:48:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 269 states have (on average 1.3903345724907064) internal successors, (374), 286 states have internal predecessors, (374), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-06 13:48:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 464 transitions. [2025-02-06 13:48:18,363 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 464 transitions. Word has length 70 [2025-02-06 13:48:18,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:18,363 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 464 transitions. [2025-02-06 13:48:18,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:18,363 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 464 transitions. [2025-02-06 13:48:18,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 13:48:18,365 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:18,365 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:18,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 13:48:18,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-06 13:48:18,565 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:18,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1082060132, now seen corresponding path program 1 times [2025-02-06 13:48:18,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:18,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865597346] [2025-02-06 13:48:18,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:18,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:18,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 13:48:18,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 13:48:18,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:18,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 13:48:18,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:18,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865597346] [2025-02-06 13:48:18,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865597346] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:18,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144457159] [2025-02-06 13:48:18,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:18,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:18,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:18,700 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:18,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 13:48:18,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 13:48:18,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 13:48:18,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:18,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:18,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 13:48:18,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2025-02-06 13:48:18,847 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:18,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144457159] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:18,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:18,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-02-06 13:48:18,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759411216] [2025-02-06 13:48:18,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:18,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:48:18,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:18,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:48:18,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:48:18,849 INFO L87 Difference]: Start difference. First operand 333 states and 464 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:18,924 INFO L93 Difference]: Finished difference Result 343 states and 471 transitions. [2025-02-06 13:48:18,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:48:18,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 71 [2025-02-06 13:48:18,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:18,926 INFO L225 Difference]: With dead ends: 343 [2025-02-06 13:48:18,926 INFO L226 Difference]: Without dead ends: 341 [2025-02-06 13:48:18,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:48:18,926 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 31 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:18,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 98 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:18,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2025-02-06 13:48:18,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 336. [2025-02-06 13:48:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 272 states have (on average 1.3602941176470589) internal successors, (370), 289 states have internal predecessors, (370), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2025-02-06 13:48:18,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 460 transitions. [2025-02-06 13:48:18,944 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 460 transitions. Word has length 71 [2025-02-06 13:48:18,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:18,945 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 460 transitions. [2025-02-06 13:48:18,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:18,945 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 460 transitions. [2025-02-06 13:48:18,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-06 13:48:18,945 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:18,945 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:18,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 13:48:19,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-06 13:48:19,150 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:19,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:19,151 INFO L85 PathProgramCache]: Analyzing trace with hash -477700678, now seen corresponding path program 1 times [2025-02-06 13:48:19,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:19,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613556737] [2025-02-06 13:48:19,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:19,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:19,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-06 13:48:19,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-06 13:48:19,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:19,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:19,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044446320] [2025-02-06 13:48:19,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:19,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:19,172 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:19,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 13:48:19,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-06 13:48:19,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-06 13:48:19,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:19,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:19,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:48:19,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2025-02-06 13:48:19,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:19,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:19,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613556737] [2025-02-06 13:48:19,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:19,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044446320] [2025-02-06 13:48:19,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044446320] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:19,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:19,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-02-06 13:48:19,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000838403] [2025-02-06 13:48:19,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:19,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 13:48:19,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:19,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 13:48:19,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-02-06 13:48:19,818 INFO L87 Difference]: Start difference. First operand 336 states and 460 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:19,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:19,911 INFO L93 Difference]: Finished difference Result 421 states and 590 transitions. [2025-02-06 13:48:19,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 13:48:19,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 73 [2025-02-06 13:48:19,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:19,913 INFO L225 Difference]: With dead ends: 421 [2025-02-06 13:48:19,913 INFO L226 Difference]: Without dead ends: 420 [2025-02-06 13:48:19,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-02-06 13:48:19,914 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 83 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:19,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 84 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:19,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2025-02-06 13:48:19,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 396. [2025-02-06 13:48:19,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 326 states have (on average 1.3803680981595092) internal successors, (450), 343 states have internal predecessors, (450), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-02-06 13:48:19,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 552 transitions. [2025-02-06 13:48:19,932 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 552 transitions. Word has length 73 [2025-02-06 13:48:19,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:19,932 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 552 transitions. [2025-02-06 13:48:19,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:19,932 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 552 transitions. [2025-02-06 13:48:19,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-06 13:48:19,933 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:19,933 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:19,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:20,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-06 13:48:20,134 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:20,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:20,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1923819117, now seen corresponding path program 1 times [2025-02-06 13:48:20,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:20,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843813390] [2025-02-06 13:48:20,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:20,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:20,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 13:48:20,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 13:48:20,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:20,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:20,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822258682] [2025-02-06 13:48:20,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:20,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:20,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:20,151 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:20,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 13:48:20,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 13:48:20,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 13:48:20,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:20,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:20,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:48:20,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2025-02-06 13:48:20,308 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:20,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:20,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843813390] [2025-02-06 13:48:20,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:20,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822258682] [2025-02-06 13:48:20,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822258682] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:20,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:20,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-02-06 13:48:20,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608764799] [2025-02-06 13:48:20,617 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:20,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:48:20,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:20,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:48:20,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:48:20,618 INFO L87 Difference]: Start difference. First operand 396 states and 552 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:20,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:20,693 INFO L93 Difference]: Finished difference Result 401 states and 553 transitions. [2025-02-06 13:48:20,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:48:20,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 74 [2025-02-06 13:48:20,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:20,695 INFO L225 Difference]: With dead ends: 401 [2025-02-06 13:48:20,695 INFO L226 Difference]: Without dead ends: 398 [2025-02-06 13:48:20,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:48:20,695 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 61 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:20,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 59 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:48:20,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2025-02-06 13:48:20,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 394. [2025-02-06 13:48:20,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 326 states have (on average 1.3098159509202454) internal successors, (427), 341 states have internal predecessors, (427), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-02-06 13:48:20,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 529 transitions. [2025-02-06 13:48:20,713 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 529 transitions. Word has length 74 [2025-02-06 13:48:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:20,714 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 529 transitions. [2025-02-06 13:48:20,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 529 transitions. [2025-02-06 13:48:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-06 13:48:20,714 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:20,714 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:20,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:20,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-06 13:48:20,919 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:20,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:20,919 INFO L85 PathProgramCache]: Analyzing trace with hash 491149528, now seen corresponding path program 1 times [2025-02-06 13:48:20,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:20,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977386818] [2025-02-06 13:48:20,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:20,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:20,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-06 13:48:20,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 13:48:20,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:20,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2025-02-06 13:48:20,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:20,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977386818] [2025-02-06 13:48:20,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977386818] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:20,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:20,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:48:20,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285723653] [2025-02-06 13:48:20,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:20,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:48:20,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:20,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:48:20,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:48:20,964 INFO L87 Difference]: Start difference. First operand 394 states and 529 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:21,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:21,101 INFO L93 Difference]: Finished difference Result 397 states and 530 transitions. [2025-02-06 13:48:21,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 13:48:21,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 75 [2025-02-06 13:48:21,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:21,103 INFO L225 Difference]: With dead ends: 397 [2025-02-06 13:48:21,104 INFO L226 Difference]: Without dead ends: 396 [2025-02-06 13:48:21,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:48:21,104 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 61 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:21,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 117 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2025-02-06 13:48:21,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 393. [2025-02-06 13:48:21,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 340 states have internal predecessors, (412), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-02-06 13:48:21,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 514 transitions. [2025-02-06 13:48:21,123 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 514 transitions. Word has length 75 [2025-02-06 13:48:21,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:21,124 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 514 transitions. [2025-02-06 13:48:21,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:21,124 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 514 transitions. [2025-02-06 13:48:21,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-06 13:48:21,124 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:21,124 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:21,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 13:48:21,124 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:21,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:21,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1954233807, now seen corresponding path program 1 times [2025-02-06 13:48:21,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:21,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268102880] [2025-02-06 13:48:21,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:21,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:21,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-06 13:48:21,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-06 13:48:21,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:21,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 13:48:21,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:21,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268102880] [2025-02-06 13:48:21,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268102880] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:21,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609538486] [2025-02-06 13:48:21,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:21,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:21,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:21,236 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:21,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 13:48:21,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-06 13:48:21,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-06 13:48:21,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:21,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:21,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 13:48:21,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-06 13:48:21,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:22,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609538486] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:22,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 13:48:22,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-02-06 13:48:22,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388312241] [2025-02-06 13:48:22,014 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:22,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 13:48:22,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:22,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 13:48:22,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2025-02-06 13:48:22,015 INFO L87 Difference]: Start difference. First operand 393 states and 514 transitions. Second operand has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-02-06 13:48:22,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:22,827 INFO L93 Difference]: Finished difference Result 694 states and 927 transitions. [2025-02-06 13:48:22,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 13:48:22,827 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 76 [2025-02-06 13:48:22,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:22,830 INFO L225 Difference]: With dead ends: 694 [2025-02-06 13:48:22,830 INFO L226 Difference]: Without dead ends: 685 [2025-02-06 13:48:22,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=353, Invalid=1287, Unknown=0, NotChecked=0, Total=1640 [2025-02-06 13:48:22,831 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 464 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:22,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 238 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 13:48:22,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2025-02-06 13:48:22,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 529. [2025-02-06 13:48:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 446 states have (on average 1.2533632286995515) internal successors, (559), 460 states have internal predecessors, (559), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-02-06 13:48:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 693 transitions. [2025-02-06 13:48:22,863 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 693 transitions. Word has length 76 [2025-02-06 13:48:22,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:22,863 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 693 transitions. [2025-02-06 13:48:22,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.933333333333334) internal successors, (74), 16 states have internal predecessors, (74), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-02-06 13:48:22,864 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 693 transitions. [2025-02-06 13:48:22,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-02-06 13:48:22,864 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:22,864 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:22,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 13:48:23,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:23,065 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:23,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:23,066 INFO L85 PathProgramCache]: Analyzing trace with hash -882718597, now seen corresponding path program 1 times [2025-02-06 13:48:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:23,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842019589] [2025-02-06 13:48:23,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:23,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:23,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-06 13:48:23,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-06 13:48:23,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:23,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:23,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [129543034] [2025-02-06 13:48:23,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:23,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:23,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:23,088 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:23,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 13:48:23,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-06 13:48:23,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-06 13:48:23,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:23,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:23,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-06 13:48:23,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-02-06 13:48:23,327 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:23,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:23,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842019589] [2025-02-06 13:48:23,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:23,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129543034] [2025-02-06 13:48:23,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129543034] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:23,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:23,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-02-06 13:48:23,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962771063] [2025-02-06 13:48:23,653 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:23,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 13:48:23,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:23,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 13:48:23,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-02-06 13:48:23,654 INFO L87 Difference]: Start difference. First operand 529 states and 693 transitions. Second operand has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-06 13:48:23,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:23,938 INFO L93 Difference]: Finished difference Result 552 states and 708 transitions. [2025-02-06 13:48:23,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 13:48:23,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 90 [2025-02-06 13:48:23,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:23,941 INFO L225 Difference]: With dead ends: 552 [2025-02-06 13:48:23,941 INFO L226 Difference]: Without dead ends: 427 [2025-02-06 13:48:23,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2025-02-06 13:48:23,942 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 13 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:23,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 192 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 13:48:23,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2025-02-06 13:48:23,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 425. [2025-02-06 13:48:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 354 states have (on average 1.2429378531073447) internal successors, (440), 368 states have internal predecessors, (440), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-02-06 13:48:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 550 transitions. [2025-02-06 13:48:23,963 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 550 transitions. Word has length 90 [2025-02-06 13:48:23,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:23,963 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 550 transitions. [2025-02-06 13:48:23,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.111111111111111) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-06 13:48:23,963 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 550 transitions. [2025-02-06 13:48:23,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-02-06 13:48:23,966 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:23,966 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:23,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:24,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:24,171 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:24,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:24,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2110952217, now seen corresponding path program 1 times [2025-02-06 13:48:24,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:24,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732569139] [2025-02-06 13:48:24,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:24,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:24,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-06 13:48:24,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-06 13:48:24,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:24,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-02-06 13:48:24,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:24,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732569139] [2025-02-06 13:48:24,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732569139] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:24,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:24,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:48:24,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353754312] [2025-02-06 13:48:24,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:24,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:48:24,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:24,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:48:24,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:48:24,223 INFO L87 Difference]: Start difference. First operand 425 states and 550 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 13:48:24,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:24,337 INFO L93 Difference]: Finished difference Result 428 states and 551 transitions. [2025-02-06 13:48:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 13:48:24,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 92 [2025-02-06 13:48:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:24,341 INFO L225 Difference]: With dead ends: 428 [2025-02-06 13:48:24,341 INFO L226 Difference]: Without dead ends: 395 [2025-02-06 13:48:24,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:48:24,342 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 27 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:24,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 178 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:24,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2025-02-06 13:48:24,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2025-02-06 13:48:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 325 states have (on average 1.2584615384615385) internal successors, (409), 338 states have internal predecessors, (409), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-02-06 13:48:24,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 511 transitions. [2025-02-06 13:48:24,362 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 511 transitions. Word has length 92 [2025-02-06 13:48:24,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:24,362 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 511 transitions. [2025-02-06 13:48:24,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 13:48:24,362 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 511 transitions. [2025-02-06 13:48:24,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-06 13:48:24,362 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:24,362 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1] [2025-02-06 13:48:24,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 13:48:24,362 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:24,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:24,363 INFO L85 PathProgramCache]: Analyzing trace with hash -292808863, now seen corresponding path program 1 times [2025-02-06 13:48:24,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:24,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533225626] [2025-02-06 13:48:24,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:24,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:24,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 13:48:24,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 13:48:24,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:24,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-02-06 13:48:24,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:24,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533225626] [2025-02-06 13:48:24,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533225626] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:24,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70773146] [2025-02-06 13:48:24,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:24,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:24,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:24,424 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:24,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 13:48:24,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-06 13:48:24,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-06 13:48:24,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:24,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:24,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:24,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-02-06 13:48:24,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-02-06 13:48:24,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70773146] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:48:24,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:48:24,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 13:48:24,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937589867] [2025-02-06 13:48:24,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:24,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 13:48:24,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:24,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 13:48:24,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-02-06 13:48:24,589 INFO L87 Difference]: Start difference. First operand 391 states and 511 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-02-06 13:48:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:24,811 INFO L93 Difference]: Finished difference Result 797 states and 1040 transitions. [2025-02-06 13:48:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 13:48:24,812 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 94 [2025-02-06 13:48:24,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:24,814 INFO L225 Difference]: With dead ends: 797 [2025-02-06 13:48:24,814 INFO L226 Difference]: Without dead ends: 795 [2025-02-06 13:48:24,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-02-06 13:48:24,815 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 246 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:24,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 307 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 13:48:24,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2025-02-06 13:48:24,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 541. [2025-02-06 13:48:24,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 451 states have (on average 1.2616407982261642) internal successors, (569), 464 states have internal predecessors, (569), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-02-06 13:48:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 719 transitions. [2025-02-06 13:48:24,845 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 719 transitions. Word has length 94 [2025-02-06 13:48:24,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:24,845 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 719 transitions. [2025-02-06 13:48:24,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 11 states have internal predecessors, (79), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-02-06 13:48:24,845 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 719 transitions. [2025-02-06 13:48:24,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-02-06 13:48:24,846 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:24,847 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:24,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-06 13:48:25,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:25,047 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:25,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:25,048 INFO L85 PathProgramCache]: Analyzing trace with hash 654776037, now seen corresponding path program 2 times [2025-02-06 13:48:25,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:25,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272802869] [2025-02-06 13:48:25,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:25,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:25,052 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 99 statements into 2 equivalence classes. [2025-02-06 13:48:25,066 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 99 of 99 statements. [2025-02-06 13:48:25,066 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:25,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:25,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553212144] [2025-02-06 13:48:25,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:25,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:25,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:25,070 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:25,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-06 13:48:25,100 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 99 statements into 2 equivalence classes. [2025-02-06 13:48:25,117 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 99 of 99 statements. [2025-02-06 13:48:25,117 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:25,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:25,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-06 13:48:25,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-02-06 13:48:25,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:26,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:26,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272802869] [2025-02-06 13:48:26,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:26,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553212144] [2025-02-06 13:48:26,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553212144] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:26,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:26,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-02-06 13:48:26,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422617905] [2025-02-06 13:48:26,122 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:26,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 13:48:26,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:26,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 13:48:26,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2025-02-06 13:48:26,124 INFO L87 Difference]: Start difference. First operand 541 states and 719 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-02-06 13:48:26,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:26,565 INFO L93 Difference]: Finished difference Result 565 states and 749 transitions. [2025-02-06 13:48:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 13:48:26,565 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 99 [2025-02-06 13:48:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:26,567 INFO L225 Difference]: With dead ends: 565 [2025-02-06 13:48:26,567 INFO L226 Difference]: Without dead ends: 564 [2025-02-06 13:48:26,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2025-02-06 13:48:26,568 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 29 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:26,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 290 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 13:48:26,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2025-02-06 13:48:26,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 541. [2025-02-06 13:48:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 451 states have (on average 1.2594235033259424) internal successors, (568), 464 states have internal predecessors, (568), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-02-06 13:48:26,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 718 transitions. [2025-02-06 13:48:26,612 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 718 transitions. Word has length 99 [2025-02-06 13:48:26,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:26,612 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 718 transitions. [2025-02-06 13:48:26,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-02-06 13:48:26,612 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 718 transitions. [2025-02-06 13:48:26,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-06 13:48:26,616 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:26,617 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:26,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-06 13:48:26,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:26,817 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:26,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:26,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1895034689, now seen corresponding path program 1 times [2025-02-06 13:48:26,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:26,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899256936] [2025-02-06 13:48:26,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:26,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:26,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-06 13:48:26,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-06 13:48:26,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:26,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:26,929 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 7 proven. 28 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:26,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:26,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899256936] [2025-02-06 13:48:26,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899256936] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:26,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771331730] [2025-02-06 13:48:26,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:26,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:26,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:26,931 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:26,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-06 13:48:26,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-06 13:48:26,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-06 13:48:26,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:26,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:26,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:26,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:27,165 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2025-02-06 13:48:27,166 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:27,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771331730] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:27,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:27,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-02-06 13:48:27,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106532486] [2025-02-06 13:48:27,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:27,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 13:48:27,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:27,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 13:48:27,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:48:27,168 INFO L87 Difference]: Start difference. First operand 541 states and 718 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:27,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:27,240 INFO L93 Difference]: Finished difference Result 546 states and 720 transitions. [2025-02-06 13:48:27,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 13:48:27,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 112 [2025-02-06 13:48:27,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:27,244 INFO L225 Difference]: With dead ends: 546 [2025-02-06 13:48:27,244 INFO L226 Difference]: Without dead ends: 541 [2025-02-06 13:48:27,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:48:27,245 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:27,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 74 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:27,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2025-02-06 13:48:27,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2025-02-06 13:48:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 449 states have (on average 1.242761692650334) internal successors, (558), 462 states have internal predecessors, (558), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-02-06 13:48:27,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 708 transitions. [2025-02-06 13:48:27,273 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 708 transitions. Word has length 112 [2025-02-06 13:48:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:27,273 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 708 transitions. [2025-02-06 13:48:27,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:27,274 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 708 transitions. [2025-02-06 13:48:27,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-02-06 13:48:27,275 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:27,275 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:27,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:27,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-02-06 13:48:27,476 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:27,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:27,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1216926255, now seen corresponding path program 2 times [2025-02-06 13:48:27,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:27,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633596297] [2025-02-06 13:48:27,476 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:27,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:27,480 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 113 statements into 2 equivalence classes. [2025-02-06 13:48:27,485 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-02-06 13:48:27,485 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:27,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:27,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:27,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633596297] [2025-02-06 13:48:27,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633596297] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:27,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714950149] [2025-02-06 13:48:27,608 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:27,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:27,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:27,613 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:27,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-06 13:48:27,638 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 113 statements into 2 equivalence classes. [2025-02-06 13:48:27,656 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 113 of 113 statements. [2025-02-06 13:48:27,656 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:27,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:27,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:27,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:27,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:27,847 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:27,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714950149] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:48:27,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:48:27,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2025-02-06 13:48:27,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629560575] [2025-02-06 13:48:27,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:27,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 13:48:27,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:27,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 13:48:27,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:48:27,848 INFO L87 Difference]: Start difference. First operand 539 states and 708 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2025-02-06 13:48:27,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:27,942 INFO L93 Difference]: Finished difference Result 548 states and 714 transitions. [2025-02-06 13:48:27,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 13:48:27,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 113 [2025-02-06 13:48:27,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:27,945 INFO L225 Difference]: With dead ends: 548 [2025-02-06 13:48:27,945 INFO L226 Difference]: Without dead ends: 541 [2025-02-06 13:48:27,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 221 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:48:27,945 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 38 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:27,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 215 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:27,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2025-02-06 13:48:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2025-02-06 13:48:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 449 states have (on average 1.2338530066815145) internal successors, (554), 462 states have internal predecessors, (554), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-02-06 13:48:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 704 transitions. [2025-02-06 13:48:27,973 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 704 transitions. Word has length 113 [2025-02-06 13:48:27,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:27,973 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 704 transitions. [2025-02-06 13:48:27,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2025-02-06 13:48:27,973 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 704 transitions. [2025-02-06 13:48:27,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-02-06 13:48:27,974 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:27,975 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2025-02-06 13:48:27,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-06 13:48:28,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:28,176 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:28,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:28,176 INFO L85 PathProgramCache]: Analyzing trace with hash -120924617, now seen corresponding path program 2 times [2025-02-06 13:48:28,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:28,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346480997] [2025-02-06 13:48:28,176 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:28,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:28,180 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-02-06 13:48:28,184 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 13:48:28,184 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:28,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:28,301 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:48:28,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:28,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346480997] [2025-02-06 13:48:28,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346480997] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:28,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077345514] [2025-02-06 13:48:28,301 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:28,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:28,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:28,304 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:28,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-06 13:48:28,324 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-02-06 13:48:28,341 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 13:48:28,341 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:28,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:28,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:48:28,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:48:28,438 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:28,560 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:48:28,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077345514] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:48:28,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:48:28,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-02-06 13:48:28,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306283644] [2025-02-06 13:48:28,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:28,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 13:48:28,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:28,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 13:48:28,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-06 13:48:28,561 INFO L87 Difference]: Start difference. First operand 539 states and 704 transitions. Second operand has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2025-02-06 13:48:28,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:28,809 INFO L93 Difference]: Finished difference Result 1226 states and 1608 transitions. [2025-02-06 13:48:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 13:48:28,810 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 115 [2025-02-06 13:48:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:28,813 INFO L225 Difference]: With dead ends: 1226 [2025-02-06 13:48:28,813 INFO L226 Difference]: Without dead ends: 1224 [2025-02-06 13:48:28,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-06 13:48:28,813 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 404 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:28,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 371 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 13:48:28,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2025-02-06 13:48:28,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 559. [2025-02-06 13:48:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 463 states have (on average 1.2203023758099352) internal successors, (565), 476 states have internal predecessors, (565), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-02-06 13:48:28,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 727 transitions. [2025-02-06 13:48:28,847 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 727 transitions. Word has length 115 [2025-02-06 13:48:28,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:28,847 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 727 transitions. [2025-02-06 13:48:28,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2025-02-06 13:48:28,848 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 727 transitions. [2025-02-06 13:48:28,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-02-06 13:48:28,848 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:28,849 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:28,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:29,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-02-06 13:48:29,050 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:29,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:29,050 INFO L85 PathProgramCache]: Analyzing trace with hash -857798635, now seen corresponding path program 1 times [2025-02-06 13:48:29,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:29,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270295110] [2025-02-06 13:48:29,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:29,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:29,056 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-02-06 13:48:29,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 13:48:29,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:29,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:29,194 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:29,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:29,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270295110] [2025-02-06 13:48:29,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270295110] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:29,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269686109] [2025-02-06 13:48:29,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:29,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:29,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:29,196 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:29,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-06 13:48:29,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-02-06 13:48:29,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-02-06 13:48:29,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:29,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:29,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 13:48:29,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:29,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:29,743 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 25 proven. 15 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:29,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269686109] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:48:29,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:48:29,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2025-02-06 13:48:29,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108377766] [2025-02-06 13:48:29,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:29,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-06 13:48:29,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:29,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-06 13:48:29,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2025-02-06 13:48:29,744 INFO L87 Difference]: Start difference. First operand 559 states and 727 transitions. Second operand has 20 states, 19 states have (on average 7.947368421052632) internal successors, (151), 20 states have internal predecessors, (151), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-02-06 13:48:30,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:30,246 INFO L93 Difference]: Finished difference Result 727 states and 954 transitions. [2025-02-06 13:48:30,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 13:48:30,246 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.947368421052632) internal successors, (151), 20 states have internal predecessors, (151), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 115 [2025-02-06 13:48:30,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:30,248 INFO L225 Difference]: With dead ends: 727 [2025-02-06 13:48:30,248 INFO L226 Difference]: Without dead ends: 636 [2025-02-06 13:48:30,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2025-02-06 13:48:30,248 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 295 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:30,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 524 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 13:48:30,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2025-02-06 13:48:30,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 554. [2025-02-06 13:48:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 454 states have (on average 1.2533039647577093) internal successors, (569), 467 states have internal predecessors, (569), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-02-06 13:48:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 739 transitions. [2025-02-06 13:48:30,278 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 739 transitions. Word has length 115 [2025-02-06 13:48:30,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:30,279 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 739 transitions. [2025-02-06 13:48:30,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.947368421052632) internal successors, (151), 20 states have internal predecessors, (151), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-02-06 13:48:30,279 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 739 transitions. [2025-02-06 13:48:30,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-02-06 13:48:30,280 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:30,281 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:30,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-02-06 13:48:30,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-02-06 13:48:30,481 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:30,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:30,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1844056585, now seen corresponding path program 1 times [2025-02-06 13:48:30,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:30,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530782854] [2025-02-06 13:48:30,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:30,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:30,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-02-06 13:48:30,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-02-06 13:48:30,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:30,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2025-02-06 13:48:30,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:30,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530782854] [2025-02-06 13:48:30,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530782854] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:30,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787594566] [2025-02-06 13:48:30,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:30,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:30,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:30,624 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:30,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-06 13:48:30,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-02-06 13:48:30,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-02-06 13:48:30,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:30,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:30,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 13:48:30,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:30,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:32,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787594566] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:48:32,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:48:32,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2025-02-06 13:48:32,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978528159] [2025-02-06 13:48:32,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:32,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 13:48:32,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:32,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 13:48:32,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2025-02-06 13:48:32,512 INFO L87 Difference]: Start difference. First operand 554 states and 739 transitions. Second operand has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-02-06 13:48:32,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:32,824 INFO L93 Difference]: Finished difference Result 758 states and 1027 transitions. [2025-02-06 13:48:32,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 13:48:32,825 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 120 [2025-02-06 13:48:32,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:32,827 INFO L225 Difference]: With dead ends: 758 [2025-02-06 13:48:32,828 INFO L226 Difference]: Without dead ends: 757 [2025-02-06 13:48:32,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2025-02-06 13:48:32,828 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 166 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:32,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 331 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 13:48:32,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2025-02-06 13:48:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 553. [2025-02-06 13:48:32,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 454 states have (on average 1.2444933920704846) internal successors, (565), 466 states have internal predecessors, (565), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-02-06 13:48:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 735 transitions. [2025-02-06 13:48:32,864 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 735 transitions. Word has length 120 [2025-02-06 13:48:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:32,864 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 735 transitions. [2025-02-06 13:48:32,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 8.0) internal successors, (160), 21 states have internal predecessors, (160), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2025-02-06 13:48:32,867 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 735 transitions. [2025-02-06 13:48:32,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-02-06 13:48:32,868 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:32,868 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 13:48:32,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-06 13:48:33,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-02-06 13:48:33,069 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:33,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:33,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1331179304, now seen corresponding path program 1 times [2025-02-06 13:48:33,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:33,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042001416] [2025-02-06 13:48:33,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:33,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:33,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-02-06 13:48:33,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-02-06 13:48:33,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:33,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:33,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:33,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042001416] [2025-02-06 13:48:33,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042001416] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:33,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727792716] [2025-02-06 13:48:33,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:33,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:33,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:33,224 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:33,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-06 13:48:33,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-02-06 13:48:33,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-02-06 13:48:33,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:33,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:33,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 13:48:33,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:33,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:34,573 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:34,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727792716] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:48:34,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:48:34,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2025-02-06 13:48:34,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211103094] [2025-02-06 13:48:34,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:34,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-06 13:48:34,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:34,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-06 13:48:34,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2025-02-06 13:48:34,574 INFO L87 Difference]: Start difference. First operand 553 states and 735 transitions. Second operand has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-02-06 13:48:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:35,415 INFO L93 Difference]: Finished difference Result 815 states and 1058 transitions. [2025-02-06 13:48:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 13:48:35,415 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 121 [2025-02-06 13:48:35,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:35,418 INFO L225 Difference]: With dead ends: 815 [2025-02-06 13:48:35,418 INFO L226 Difference]: Without dead ends: 814 [2025-02-06 13:48:35,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2025-02-06 13:48:35,419 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 310 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:35,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 545 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 13:48:35,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2025-02-06 13:48:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 696. [2025-02-06 13:48:35,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 581 states have (on average 1.2358003442340793) internal successors, (718), 593 states have internal predecessors, (718), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2025-02-06 13:48:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 920 transitions. [2025-02-06 13:48:35,463 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 920 transitions. Word has length 121 [2025-02-06 13:48:35,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:35,464 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 920 transitions. [2025-02-06 13:48:35,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.047619047619047) internal successors, (169), 22 states have internal predecessors, (169), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2025-02-06 13:48:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 920 transitions. [2025-02-06 13:48:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-02-06 13:48:35,465 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:35,465 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:35,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:35,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:35,666 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:35,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:35,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1832826801, now seen corresponding path program 3 times [2025-02-06 13:48:35,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:35,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003559987] [2025-02-06 13:48:35,666 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:48:35,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:35,671 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 122 statements into 8 equivalence classes. [2025-02-06 13:48:35,688 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 122 of 122 statements. [2025-02-06 13:48:35,688 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-02-06 13:48:35,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:35,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [268099472] [2025-02-06 13:48:35,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:48:35,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:35,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:35,690 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:35,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-06 13:48:35,712 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 122 statements into 8 equivalence classes. [2025-02-06 13:48:35,722 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 41 of 122 statements. [2025-02-06 13:48:35,722 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 13:48:35,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:35,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 13:48:35,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:36,021 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 39 proven. 5 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2025-02-06 13:48:36,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:49,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:49,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003559987] [2025-02-06 13:48:49,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:49,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268099472] [2025-02-06 13:48:49,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268099472] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:49,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:49,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-02-06 13:48:49,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055055870] [2025-02-06 13:48:49,348 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:49,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 13:48:49,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:49,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 13:48:49,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=178, Unknown=3, NotChecked=0, Total=240 [2025-02-06 13:48:49,350 INFO L87 Difference]: Start difference. First operand 696 states and 920 transitions. Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:49,687 INFO L93 Difference]: Finished difference Result 713 states and 934 transitions. [2025-02-06 13:48:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 13:48:49,688 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 122 [2025-02-06 13:48:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:49,690 INFO L225 Difference]: With dead ends: 713 [2025-02-06 13:48:49,690 INFO L226 Difference]: Without dead ends: 712 [2025-02-06 13:48:49,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=99, Invalid=278, Unknown=3, NotChecked=0, Total=380 [2025-02-06 13:48:49,691 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 82 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:49,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 85 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 13:48:49,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2025-02-06 13:48:49,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 696. [2025-02-06 13:48:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 581 states have (on average 1.2220309810671257) internal successors, (710), 593 states have internal predecessors, (710), 101 states have call successors, (101), 1 states have call predecessors, (101), 1 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2025-02-06 13:48:49,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 912 transitions. [2025-02-06 13:48:49,733 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 912 transitions. Word has length 122 [2025-02-06 13:48:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:49,733 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 912 transitions. [2025-02-06 13:48:49,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:49,734 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 912 transitions. [2025-02-06 13:48:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-02-06 13:48:49,735 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:49,735 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-02-06 13:48:49,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-06 13:48:49,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2025-02-06 13:48:49,936 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:49,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:49,936 INFO L85 PathProgramCache]: Analyzing trace with hash 636943606, now seen corresponding path program 2 times [2025-02-06 13:48:49,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:49,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534308808] [2025-02-06 13:48:49,937 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:49,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:49,940 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 123 statements into 2 equivalence classes. [2025-02-06 13:48:49,953 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 123 of 123 statements. [2025-02-06 13:48:49,955 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:48:49,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:49,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1795504939] [2025-02-06 13:48:49,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:48:49,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:49,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:49,960 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:49,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-06 13:48:49,982 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 123 statements into 2 equivalence classes. [2025-02-06 13:48:49,989 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 123 statements. [2025-02-06 13:48:49,989 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 13:48:49,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:49,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:49,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2025-02-06 13:48:50,074 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:50,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:50,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534308808] [2025-02-06 13:48:50,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:50,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795504939] [2025-02-06 13:48:50,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795504939] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:50,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:50,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 13:48:50,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292810861] [2025-02-06 13:48:50,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:50,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 13:48:50,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:50,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 13:48:50,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 13:48:50,076 INFO L87 Difference]: Start difference. First operand 696 states and 912 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:50,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:50,176 INFO L93 Difference]: Finished difference Result 696 states and 912 transitions. [2025-02-06 13:48:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 13:48:50,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 123 [2025-02-06 13:48:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:50,179 INFO L225 Difference]: With dead ends: 696 [2025-02-06 13:48:50,179 INFO L226 Difference]: Without dead ends: 695 [2025-02-06 13:48:50,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-06 13:48:50,181 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 54 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:50,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 80 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:50,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2025-02-06 13:48:50,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 650. [2025-02-06 13:48:50,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 542 states have (on average 1.1900369003690037) internal successors, (645), 553 states have internal predecessors, (645), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-02-06 13:48:50,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 835 transitions. [2025-02-06 13:48:50,226 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 835 transitions. Word has length 123 [2025-02-06 13:48:50,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:50,226 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 835 transitions. [2025-02-06 13:48:50,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 13:48:50,226 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 835 transitions. [2025-02-06 13:48:50,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-06 13:48:50,227 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:50,227 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-02-06 13:48:50,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:50,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2025-02-06 13:48:50,432 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:50,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:50,432 INFO L85 PathProgramCache]: Analyzing trace with hash 21465461, now seen corresponding path program 4 times [2025-02-06 13:48:50,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:50,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704236720] [2025-02-06 13:48:50,433 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:48:50,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:50,437 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 126 statements into 2 equivalence classes. [2025-02-06 13:48:50,448 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 126 of 126 statements. [2025-02-06 13:48:50,448 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:48:50,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:50,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704236720] [2025-02-06 13:48:50,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704236720] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:50,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707062794] [2025-02-06 13:48:50,645 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 13:48:50,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:50,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:50,647 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:50,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-02-06 13:48:50,673 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 126 statements into 2 equivalence classes. [2025-02-06 13:48:50,695 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 126 of 126 statements. [2025-02-06 13:48:50,696 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 13:48:50,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:50,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-06 13:48:50,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:51,149 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-02-06 13:48:51,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:51,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707062794] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:51,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 13:48:51,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 22 [2025-02-06 13:48:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527987873] [2025-02-06 13:48:51,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:51,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 13:48:51,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:51,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 13:48:51,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=563, Unknown=0, NotChecked=0, Total=650 [2025-02-06 13:48:51,390 INFO L87 Difference]: Start difference. First operand 650 states and 835 transitions. Second operand has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 23 states have internal predecessors, (124), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2025-02-06 13:48:52,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:52,154 INFO L93 Difference]: Finished difference Result 736 states and 940 transitions. [2025-02-06 13:48:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 13:48:52,154 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 23 states have internal predecessors, (124), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 126 [2025-02-06 13:48:52,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:52,156 INFO L225 Difference]: With dead ends: 736 [2025-02-06 13:48:52,157 INFO L226 Difference]: Without dead ends: 729 [2025-02-06 13:48:52,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 127 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=200, Invalid=1282, Unknown=0, NotChecked=0, Total=1482 [2025-02-06 13:48:52,158 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 257 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:52,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 421 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 13:48:52,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2025-02-06 13:48:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 681. [2025-02-06 13:48:52,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 569 states have (on average 1.1862917398945518) internal successors, (675), 580 states have internal predecessors, (675), 99 states have call successors, (99), 1 states have call predecessors, (99), 1 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2025-02-06 13:48:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 873 transitions. [2025-02-06 13:48:52,212 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 873 transitions. Word has length 126 [2025-02-06 13:48:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:52,212 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 873 transitions. [2025-02-06 13:48:52,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.636363636363637) internal successors, (124), 23 states have internal predecessors, (124), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2025-02-06 13:48:52,213 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 873 transitions. [2025-02-06 13:48:52,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-06 13:48:52,213 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:52,213 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:52,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-02-06 13:48:52,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:52,418 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:52,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:52,418 INFO L85 PathProgramCache]: Analyzing trace with hash -574912951, now seen corresponding path program 1 times [2025-02-06 13:48:52,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:52,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93037048] [2025-02-06 13:48:52,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:52,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:52,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 13:48:52,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 13:48:52,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:52,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:52,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854068050] [2025-02-06 13:48:52,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:52,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:52,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:52,431 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:52,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-02-06 13:48:52,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-06 13:48:52,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-06 13:48:52,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:52,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:52,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 13:48:52,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2025-02-06 13:48:52,578 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:48:52,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93037048] [2025-02-06 13:48:52,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854068050] [2025-02-06 13:48:52,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854068050] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:48:52,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 13:48:52,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 13:48:52,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882565608] [2025-02-06 13:48:52,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:48:52,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:48:52,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:52,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:48:52,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:48:52,580 INFO L87 Difference]: Start difference. First operand 681 states and 873 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-06 13:48:52,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:52,638 INFO L93 Difference]: Finished difference Result 681 states and 873 transitions. [2025-02-06 13:48:52,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:48:52,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 129 [2025-02-06 13:48:52,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:52,641 INFO L225 Difference]: With dead ends: 681 [2025-02-06 13:48:52,641 INFO L226 Difference]: Without dead ends: 679 [2025-02-06 13:48:52,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 13:48:52,641 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 32 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:52,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 52 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:48:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2025-02-06 13:48:52,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 546. [2025-02-06 13:48:52,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 452 states have (on average 1.1482300884955752) internal successors, (519), 461 states have internal predecessors, (519), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-02-06 13:48:52,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 685 transitions. [2025-02-06 13:48:52,679 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 685 transitions. Word has length 129 [2025-02-06 13:48:52,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:52,680 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 685 transitions. [2025-02-06 13:48:52,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-06 13:48:52,680 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 685 transitions. [2025-02-06 13:48:52,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-02-06 13:48:52,680 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:52,681 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:48:52,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-02-06 13:48:52,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2025-02-06 13:48:52,881 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:52,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:52,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1364975654, now seen corresponding path program 1 times [2025-02-06 13:48:52,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:52,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096277804] [2025-02-06 13:48:52,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:52,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:52,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-06 13:48:52,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-06 13:48:52,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:52,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:52,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496837445] [2025-02-06 13:48:52,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:52,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:52,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:52,909 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:52,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-02-06 13:48:52,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-06 13:48:52,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-06 13:48:52,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:52,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:52,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 13:48:52,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:48:53,385 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:53,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:53,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096277804] [2025-02-06 13:48:53,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:53,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496837445] [2025-02-06 13:48:53,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496837445] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:53,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:53,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-02-06 13:48:53,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288123769] [2025-02-06 13:48:53,648 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:53,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 13:48:53,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:53,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 13:48:53,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-02-06 13:48:53,648 INFO L87 Difference]: Start difference. First operand 546 states and 685 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-02-06 13:48:53,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:53,976 INFO L93 Difference]: Finished difference Result 549 states and 687 transitions. [2025-02-06 13:48:53,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 13:48:53,976 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 136 [2025-02-06 13:48:53,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:53,978 INFO L225 Difference]: With dead ends: 549 [2025-02-06 13:48:53,978 INFO L226 Difference]: Without dead ends: 547 [2025-02-06 13:48:53,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-02-06 13:48:53,978 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 14 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:53,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 228 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 13:48:53,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2025-02-06 13:48:54,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 546. [2025-02-06 13:48:54,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 452 states have (on average 1.1460176991150441) internal successors, (518), 461 states have internal predecessors, (518), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-02-06 13:48:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 684 transitions. [2025-02-06 13:48:54,018 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 684 transitions. Word has length 136 [2025-02-06 13:48:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:54,019 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 684 transitions. [2025-02-06 13:48:54,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-02-06 13:48:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 684 transitions. [2025-02-06 13:48:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-02-06 13:48:54,020 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:54,021 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 13:48:54,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-02-06 13:48:54,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:54,225 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:54,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:54,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1938131135, now seen corresponding path program 3 times [2025-02-06 13:48:54,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:54,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857035740] [2025-02-06 13:48:54,225 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:48:54,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:54,229 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 140 statements into 9 equivalence classes. [2025-02-06 13:48:54,247 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 140 of 140 statements. [2025-02-06 13:48:54,247 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-02-06 13:48:54,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:48:54,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275635061] [2025-02-06 13:48:54,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:48:54,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:54,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:54,254 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:54,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-02-06 13:48:54,275 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 140 statements into 9 equivalence classes. [2025-02-06 13:48:54,289 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 66 of 140 statements. [2025-02-06 13:48:54,289 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-06 13:48:54,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:54,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 13:48:54,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2025-02-06 13:48:54,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:54,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:54,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857035740] [2025-02-06 13:48:54,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:48:54,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275635061] [2025-02-06 13:48:54,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275635061] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:54,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:48:54,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-02-06 13:48:54,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50740841] [2025-02-06 13:48:54,626 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:54,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 13:48:54,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:54,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 13:48:54,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-02-06 13:48:54,627 INFO L87 Difference]: Start difference. First operand 546 states and 684 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 13:48:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:54,854 INFO L93 Difference]: Finished difference Result 548 states and 686 transitions. [2025-02-06 13:48:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 13:48:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 140 [2025-02-06 13:48:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:54,857 INFO L225 Difference]: With dead ends: 548 [2025-02-06 13:48:54,857 INFO L226 Difference]: Without dead ends: 546 [2025-02-06 13:48:54,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2025-02-06 13:48:54,857 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 80 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:54,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 90 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:48:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2025-02-06 13:48:54,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 544. [2025-02-06 13:48:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 451 states have (on average 1.1419068736141906) internal successors, (515), 459 states have internal predecessors, (515), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-02-06 13:48:54,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 681 transitions. [2025-02-06 13:48:54,904 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 681 transitions. Word has length 140 [2025-02-06 13:48:54,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:48:54,904 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 681 transitions. [2025-02-06 13:48:54,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 13:48:54,904 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 681 transitions. [2025-02-06 13:48:54,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-02-06 13:48:54,905 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:48:54,905 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-02-06 13:48:54,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-02-06 13:48:55,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:55,106 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:48:55,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:48:55,107 INFO L85 PathProgramCache]: Analyzing trace with hash -575749174, now seen corresponding path program 1 times [2025-02-06 13:48:55,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:48:55,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773136715] [2025-02-06 13:48:55,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:55,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:48:55,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-02-06 13:48:55,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-02-06 13:48:55,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:55,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:48:55,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:48:55,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773136715] [2025-02-06 13:48:55,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773136715] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:48:55,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375585790] [2025-02-06 13:48:55,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:48:55,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:48:55,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:48:55,373 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:48:55,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-02-06 13:48:55,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-02-06 13:48:55,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-02-06 13:48:55,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:48:55,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:48:55,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-02-06 13:48:55,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:48:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:48:55,943 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:48:57,921 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:48:57,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375585790] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:48:57,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:48:57,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 10] total 34 [2025-02-06 13:48:57,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128076250] [2025-02-06 13:48:57,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:48:57,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-02-06 13:48:57,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:48:57,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-02-06 13:48:57,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2025-02-06 13:48:57,925 INFO L87 Difference]: Start difference. First operand 544 states and 681 transitions. Second operand has 35 states, 34 states have (on average 6.294117647058823) internal successors, (214), 35 states have internal predecessors, (214), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) [2025-02-06 13:48:59,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:48:59,981 INFO L93 Difference]: Finished difference Result 773 states and 980 transitions. [2025-02-06 13:48:59,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 13:48:59,982 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.294117647058823) internal successors, (214), 35 states have internal predecessors, (214), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) Word has length 146 [2025-02-06 13:48:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:48:59,984 INFO L225 Difference]: With dead ends: 773 [2025-02-06 13:48:59,984 INFO L226 Difference]: Without dead ends: 771 [2025-02-06 13:48:59,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=854, Invalid=2116, Unknown=0, NotChecked=0, Total=2970 [2025-02-06 13:48:59,985 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 511 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:48:59,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 655 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-06 13:48:59,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2025-02-06 13:49:00,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 644. [2025-02-06 13:49:00,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 541 states have (on average 1.155268022181146) internal successors, (625), 549 states have internal predecessors, (625), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-06 13:49:00,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 811 transitions. [2025-02-06 13:49:00,045 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 811 transitions. Word has length 146 [2025-02-06 13:49:00,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:00,046 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 811 transitions. [2025-02-06 13:49:00,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.294117647058823) internal successors, (214), 35 states have internal predecessors, (214), 18 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 18 states have call predecessors, (45), 18 states have call successors, (45) [2025-02-06 13:49:00,046 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 811 transitions. [2025-02-06 13:49:00,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-06 13:49:00,047 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:00,047 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-02-06 13:49:00,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-02-06 13:49:00,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-02-06 13:49:00,251 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:00,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:00,251 INFO L85 PathProgramCache]: Analyzing trace with hash 467519785, now seen corresponding path program 5 times [2025-02-06 13:49:00,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:00,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378226407] [2025-02-06 13:49:00,252 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:49:00,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:00,256 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 149 statements into 8 equivalence classes. [2025-02-06 13:49:00,269 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 149 of 149 statements. [2025-02-06 13:49:00,270 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-02-06 13:49:00,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:49:00,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654257094] [2025-02-06 13:49:00,270 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 13:49:00,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:00,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:00,278 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:00,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-02-06 13:49:00,300 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 149 statements into 8 equivalence classes. [2025-02-06 13:49:00,329 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 149 of 149 statements. [2025-02-06 13:49:00,329 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-02-06 13:49:00,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:00,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-02-06 13:49:00,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:01,262 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 45 proven. 122 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2025-02-06 13:49:01,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:01,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:01,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378226407] [2025-02-06 13:49:01,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:49:01,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654257094] [2025-02-06 13:49:01,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654257094] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:01,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:49:01,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2025-02-06 13:49:01,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532114919] [2025-02-06 13:49:01,854 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:01,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-06 13:49:01,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:01,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-06 13:49:01,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2025-02-06 13:49:01,855 INFO L87 Difference]: Start difference. First operand 644 states and 811 transitions. Second operand has 20 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2025-02-06 13:49:03,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:03,061 INFO L93 Difference]: Finished difference Result 847 states and 1060 transitions. [2025-02-06 13:49:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 13:49:03,062 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 149 [2025-02-06 13:49:03,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:03,063 INFO L225 Difference]: With dead ends: 847 [2025-02-06 13:49:03,063 INFO L226 Difference]: Without dead ends: 691 [2025-02-06 13:49:03,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2025-02-06 13:49:03,064 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 62 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:03,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 669 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-02-06 13:49:03,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2025-02-06 13:49:03,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 654. [2025-02-06 13:49:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 551 states have (on average 1.1506352087114338) internal successors, (634), 559 states have internal predecessors, (634), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-06 13:49:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 820 transitions. [2025-02-06 13:49:03,129 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 820 transitions. Word has length 149 [2025-02-06 13:49:03,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:03,129 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 820 transitions. [2025-02-06 13:49:03,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 19 states have internal predecessors, (75), 7 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2025-02-06 13:49:03,129 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 820 transitions. [2025-02-06 13:49:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-06 13:49:03,130 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:03,130 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 13:49:03,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-02-06 13:49:03,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-02-06 13:49:03,330 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:03,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash 869730730, now seen corresponding path program 1 times [2025-02-06 13:49:03,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:03,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404194333] [2025-02-06 13:49:03,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:49:03,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:03,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-06 13:49:03,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-06 13:49:03,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:49:03,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 3 proven. 86 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:49:03,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:03,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404194333] [2025-02-06 13:49:03,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404194333] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:03,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91351073] [2025-02-06 13:49:03,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:49:03,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:03,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:03,564 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:03,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-02-06 13:49:03,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-06 13:49:03,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-06 13:49:03,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:49:03,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:03,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 13:49:03,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 15 proven. 74 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-02-06 13:49:04,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:04,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91351073] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:04,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 13:49:04,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2025-02-06 13:49:04,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399144118] [2025-02-06 13:49:04,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:04,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-06 13:49:04,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:04,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-06 13:49:04,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2025-02-06 13:49:04,458 INFO L87 Difference]: Start difference. First operand 654 states and 820 transitions. Second operand has 25 states, 24 states have (on average 6.25) internal successors, (150), 25 states have internal predecessors, (150), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2025-02-06 13:49:05,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:05,856 INFO L93 Difference]: Finished difference Result 804 states and 998 transitions. [2025-02-06 13:49:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-06 13:49:05,857 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.25) internal successors, (150), 25 states have internal predecessors, (150), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 149 [2025-02-06 13:49:05,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:05,859 INFO L225 Difference]: With dead ends: 804 [2025-02-06 13:49:05,859 INFO L226 Difference]: Without dead ends: 803 [2025-02-06 13:49:05,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=431, Invalid=2221, Unknown=0, NotChecked=0, Total=2652 [2025-02-06 13:49:05,860 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 629 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:05,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 617 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 13:49:05,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2025-02-06 13:49:05,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 673. [2025-02-06 13:49:05,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 568 states have (on average 1.147887323943662) internal successors, (652), 576 states have internal predecessors, (652), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2025-02-06 13:49:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 842 transitions. [2025-02-06 13:49:05,923 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 842 transitions. Word has length 149 [2025-02-06 13:49:05,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:05,923 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 842 transitions. [2025-02-06 13:49:05,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.25) internal successors, (150), 25 states have internal predecessors, (150), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2025-02-06 13:49:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 842 transitions. [2025-02-06 13:49:05,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 13:49:05,924 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:05,924 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:49:05,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-02-06 13:49:06,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-02-06 13:49:06,128 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:06,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:06,128 INFO L85 PathProgramCache]: Analyzing trace with hash -769359075, now seen corresponding path program 1 times [2025-02-06 13:49:06,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:06,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798218408] [2025-02-06 13:49:06,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:49:06,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:06,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 13:49:06,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 13:49:06,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:49:06,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 25 proven. 64 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:06,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:06,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798218408] [2025-02-06 13:49:06,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798218408] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:06,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239863905] [2025-02-06 13:49:06,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:49:06,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:06,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:06,234 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:06,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-02-06 13:49:06,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-06 13:49:06,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 13:49:06,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:49:06,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:06,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 13:49:06,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 54 proven. 35 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:06,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 54 proven. 35 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:06,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239863905] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:49:06,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:49:06,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2025-02-06 13:49:06,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363997948] [2025-02-06 13:49:06,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:06,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 13:49:06,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:06,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 13:49:06,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:49:06,560 INFO L87 Difference]: Start difference. First operand 673 states and 842 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2025-02-06 13:49:06,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:06,787 INFO L93 Difference]: Finished difference Result 818 states and 1019 transitions. [2025-02-06 13:49:06,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 13:49:06,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 160 [2025-02-06 13:49:06,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:06,790 INFO L225 Difference]: With dead ends: 818 [2025-02-06 13:49:06,790 INFO L226 Difference]: Without dead ends: 812 [2025-02-06 13:49:06,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 315 SyntacticMatches, 8 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-02-06 13:49:06,790 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 36 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:06,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 331 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 13:49:06,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2025-02-06 13:49:06,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 789. [2025-02-06 13:49:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 668 states have (on average 1.1392215568862276) internal successors, (761), 676 states have internal predecessors, (761), 111 states have call successors, (111), 1 states have call predecessors, (111), 1 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2025-02-06 13:49:06,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 983 transitions. [2025-02-06 13:49:06,865 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 983 transitions. Word has length 160 [2025-02-06 13:49:06,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:06,865 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 983 transitions. [2025-02-06 13:49:06,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2025-02-06 13:49:06,866 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 983 transitions. [2025-02-06 13:49:06,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-06 13:49:06,867 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:06,867 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 13:49:06,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-02-06 13:49:07,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:07,067 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:07,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:07,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2120718332, now seen corresponding path program 2 times [2025-02-06 13:49:07,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:07,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214802954] [2025-02-06 13:49:07,068 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:49:07,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:07,072 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 160 statements into 2 equivalence classes. [2025-02-06 13:49:07,076 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 13:49:07,076 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:49:07,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 40 proven. 60 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 13:49:07,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:07,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214802954] [2025-02-06 13:49:07,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214802954] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:07,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758491158] [2025-02-06 13:49:07,241 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:49:07,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:07,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:07,243 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:07,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-02-06 13:49:07,298 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 160 statements into 2 equivalence classes. [2025-02-06 13:49:07,325 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 160 of 160 statements. [2025-02-06 13:49:07,325 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:49:07,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:07,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 13:49:07,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:07,660 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 153 proven. 67 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-02-06 13:49:07,660 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 45 proven. 55 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 13:49:08,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758491158] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:49:08,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:49:08,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 23 [2025-02-06 13:49:08,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228914509] [2025-02-06 13:49:08,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:08,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 13:49:08,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:08,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 13:49:08,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2025-02-06 13:49:08,789 INFO L87 Difference]: Start difference. First operand 789 states and 983 transitions. Second operand has 23 states, 23 states have (on average 9.08695652173913) internal successors, (209), 23 states have internal predecessors, (209), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) [2025-02-06 13:49:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:09,419 INFO L93 Difference]: Finished difference Result 952 states and 1197 transitions. [2025-02-06 13:49:09,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 13:49:09,419 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.08695652173913) internal successors, (209), 23 states have internal predecessors, (209), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) Word has length 160 [2025-02-06 13:49:09,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:09,421 INFO L225 Difference]: With dead ends: 952 [2025-02-06 13:49:09,421 INFO L226 Difference]: Without dead ends: 494 [2025-02-06 13:49:09,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2025-02-06 13:49:09,422 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 106 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:09,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 416 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 13:49:09,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2025-02-06 13:49:09,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2025-02-06 13:49:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 409 states have (on average 1.156479217603912) internal successors, (473), 417 states have internal predecessors, (473), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2025-02-06 13:49:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 623 transitions. [2025-02-06 13:49:09,502 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 623 transitions. Word has length 160 [2025-02-06 13:49:09,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:09,503 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 623 transitions. [2025-02-06 13:49:09,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.08695652173913) internal successors, (209), 23 states have internal predecessors, (209), 14 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 14 states have call predecessors, (49), 14 states have call successors, (49) [2025-02-06 13:49:09,503 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 623 transitions. [2025-02-06 13:49:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-02-06 13:49:09,503 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:09,504 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-02-06 13:49:09,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-02-06 13:49:09,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,35 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:09,708 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:09,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2097692068, now seen corresponding path program 1 times [2025-02-06 13:49:09,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:09,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987356004] [2025-02-06 13:49:09,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:49:09,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:09,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-06 13:49:09,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-06 13:49:09,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:49:09,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:09,837 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 29 proven. 66 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:09,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:09,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987356004] [2025-02-06 13:49:09,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987356004] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:09,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940888985] [2025-02-06 13:49:09,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:49:09,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:09,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:09,839 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:09,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-02-06 13:49:09,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-06 13:49:09,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-06 13:49:09,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:49:09,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:09,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 13:49:09,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 677 trivial. 0 not checked. [2025-02-06 13:49:09,965 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 13:49:09,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940888985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 13:49:09,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:49:09,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2025-02-06 13:49:09,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733501600] [2025-02-06 13:49:09,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 13:49:09,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 13:49:09,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:09,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 13:49:09,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:49:09,966 INFO L87 Difference]: Start difference. First operand 494 states and 623 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 13:49:10,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:10,065 INFO L93 Difference]: Finished difference Result 494 states and 623 transitions. [2025-02-06 13:49:10,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 13:49:10,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 163 [2025-02-06 13:49:10,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:10,067 INFO L225 Difference]: With dead ends: 494 [2025-02-06 13:49:10,067 INFO L226 Difference]: Without dead ends: 493 [2025-02-06 13:49:10,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 163 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-02-06 13:49:10,069 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 29 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:10,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 84 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 13:49:10,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2025-02-06 13:49:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 482. [2025-02-06 13:49:10,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 400 states have (on average 1.14) internal successors, (456), 407 states have internal predecessors, (456), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2025-02-06 13:49:10,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 602 transitions. [2025-02-06 13:49:10,132 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 602 transitions. Word has length 163 [2025-02-06 13:49:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:10,132 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 602 transitions. [2025-02-06 13:49:10,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 13:49:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 602 transitions. [2025-02-06 13:49:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-02-06 13:49:10,133 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:10,133 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 13:49:10,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2025-02-06 13:49:10,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,36 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:10,334 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:10,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:10,335 INFO L85 PathProgramCache]: Analyzing trace with hash -707953097, now seen corresponding path program 1 times [2025-02-06 13:49:10,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:10,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799278371] [2025-02-06 13:49:10,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:49:10,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:10,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-02-06 13:49:10,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-02-06 13:49:10,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:49:10,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:10,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:10,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799278371] [2025-02-06 13:49:10,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799278371] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:10,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098808389] [2025-02-06 13:49:10,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 13:49:10,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:10,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:10,706 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:10,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-02-06 13:49:10,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-02-06 13:49:10,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-02-06 13:49:10,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 13:49:10,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:10,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-02-06 13:49:10,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:11,128 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:11,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:14,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098808389] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:49:14,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:49:14,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2025-02-06 13:49:14,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759308444] [2025-02-06 13:49:14,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:14,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-02-06 13:49:14,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:14,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-02-06 13:49:14,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2025-02-06 13:49:14,022 INFO L87 Difference]: Start difference. First operand 482 states and 602 transitions. Second operand has 30 states, 29 states have (on average 8.0) internal successors, (232), 30 states have internal predecessors, (232), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2025-02-06 13:49:17,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:17,111 INFO L93 Difference]: Finished difference Result 876 states and 1084 transitions. [2025-02-06 13:49:17,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-02-06 13:49:17,112 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 8.0) internal successors, (232), 30 states have internal predecessors, (232), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) Word has length 167 [2025-02-06 13:49:17,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:17,114 INFO L225 Difference]: With dead ends: 876 [2025-02-06 13:49:17,114 INFO L226 Difference]: Without dead ends: 875 [2025-02-06 13:49:17,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1072, Invalid=1898, Unknown=0, NotChecked=0, Total=2970 [2025-02-06 13:49:17,115 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 591 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:17,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 755 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 13:49:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2025-02-06 13:49:17,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 740. [2025-02-06 13:49:17,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 626 states have (on average 1.134185303514377) internal successors, (710), 633 states have internal predecessors, (710), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2025-02-06 13:49:17,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 920 transitions. [2025-02-06 13:49:17,229 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 920 transitions. Word has length 167 [2025-02-06 13:49:17,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:17,230 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 920 transitions. [2025-02-06 13:49:17,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 8.0) internal successors, (232), 30 states have internal predecessors, (232), 18 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 18 states have call predecessors, (54), 18 states have call successors, (54) [2025-02-06 13:49:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 920 transitions. [2025-02-06 13:49:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-02-06 13:49:17,236 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:17,236 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-02-06 13:49:17,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-02-06 13:49:17,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,37 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:17,437 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:17,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:17,437 INFO L85 PathProgramCache]: Analyzing trace with hash 197730037, now seen corresponding path program 6 times [2025-02-06 13:49:17,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:17,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106069547] [2025-02-06 13:49:17,437 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 13:49:17,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:17,442 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 172 statements into 10 equivalence classes. [2025-02-06 13:49:17,482 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 172 of 172 statements. [2025-02-06 13:49:17,482 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-02-06 13:49:17,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:49:17,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390589029] [2025-02-06 13:49:17,483 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 13:49:17,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:17,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:17,488 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:17,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-02-06 13:49:17,512 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 172 statements into 10 equivalence classes. [2025-02-06 13:49:17,531 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) and asserted 97 of 172 statements. [2025-02-06 13:49:17,531 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2025-02-06 13:49:17,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:17,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 13:49:17,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:18,313 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 54 proven. 29 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2025-02-06 13:49:18,313 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:19,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106069547] [2025-02-06 13:49:19,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:49:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390589029] [2025-02-06 13:49:19,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390589029] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:19,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:49:19,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-02-06 13:49:19,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232305566] [2025-02-06 13:49:19,429 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:19,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 13:49:19,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:19,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 13:49:19,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2025-02-06 13:49:19,430 INFO L87 Difference]: Start difference. First operand 740 states and 920 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 13:49:20,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:20,108 INFO L93 Difference]: Finished difference Result 837 states and 1036 transitions. [2025-02-06 13:49:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 13:49:20,109 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 172 [2025-02-06 13:49:20,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:20,111 INFO L225 Difference]: With dead ends: 837 [2025-02-06 13:49:20,111 INFO L226 Difference]: Without dead ends: 836 [2025-02-06 13:49:20,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2025-02-06 13:49:20,111 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 31 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:20,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 228 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 13:49:20,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2025-02-06 13:49:20,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 740. [2025-02-06 13:49:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 626 states have (on average 1.1309904153354633) internal successors, (708), 633 states have internal predecessors, (708), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2025-02-06 13:49:20,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 918 transitions. [2025-02-06 13:49:20,227 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 918 transitions. Word has length 172 [2025-02-06 13:49:20,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:20,227 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 918 transitions. [2025-02-06 13:49:20,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 12 states have internal predecessors, (56), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-06 13:49:20,227 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 918 transitions. [2025-02-06 13:49:20,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-02-06 13:49:20,228 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:20,228 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 13:49:20,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2025-02-06 13:49:20,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,38 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:20,428 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:20,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:20,429 INFO L85 PathProgramCache]: Analyzing trace with hash 599940982, now seen corresponding path program 2 times [2025-02-06 13:49:20,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:20,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383685443] [2025-02-06 13:49:20,429 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:49:20,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:20,432 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 172 statements into 2 equivalence classes. [2025-02-06 13:49:20,438 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 172 of 172 statements. [2025-02-06 13:49:20,438 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:49:20,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 3 proven. 115 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:20,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:20,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383685443] [2025-02-06 13:49:20,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383685443] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:20,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389174779] [2025-02-06 13:49:20,672 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:49:20,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:20,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:20,674 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:20,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-02-06 13:49:20,696 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 172 statements into 2 equivalence classes. [2025-02-06 13:49:20,722 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 172 of 172 statements. [2025-02-06 13:49:20,722 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:49:20,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:20,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 13:49:20,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:21,277 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 13:49:21,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:21,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389174779] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:21,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 13:49:21,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2025-02-06 13:49:21,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941986171] [2025-02-06 13:49:21,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:21,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-06 13:49:21,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:21,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-06 13:49:21,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2025-02-06 13:49:21,522 INFO L87 Difference]: Start difference. First operand 740 states and 918 transitions. Second operand has 28 states, 27 states have (on average 6.148148148148148) internal successors, (166), 28 states have internal predecessors, (166), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2025-02-06 13:49:23,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:23,074 INFO L93 Difference]: Finished difference Result 1044 states and 1290 transitions. [2025-02-06 13:49:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-02-06 13:49:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.148148148148148) internal successors, (166), 28 states have internal predecessors, (166), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) Word has length 172 [2025-02-06 13:49:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:23,080 INFO L225 Difference]: With dead ends: 1044 [2025-02-06 13:49:23,080 INFO L226 Difference]: Without dead ends: 1032 [2025-02-06 13:49:23,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=734, Invalid=3172, Unknown=0, NotChecked=0, Total=3906 [2025-02-06 13:49:23,081 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 755 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:23,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 825 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 13:49:23,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2025-02-06 13:49:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 903. [2025-02-06 13:49:23,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 771 states have (on average 1.1245136186770428) internal successors, (867), 778 states have internal predecessors, (867), 123 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2025-02-06 13:49:23,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1113 transitions. [2025-02-06 13:49:23,220 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1113 transitions. Word has length 172 [2025-02-06 13:49:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:23,220 INFO L471 AbstractCegarLoop]: Abstraction has 903 states and 1113 transitions. [2025-02-06 13:49:23,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.148148148148148) internal successors, (166), 28 states have internal predecessors, (166), 14 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 14 states have call predecessors, (36), 14 states have call successors, (36) [2025-02-06 13:49:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1113 transitions. [2025-02-06 13:49:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2025-02-06 13:49:23,223 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:23,223 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2025-02-06 13:49:23,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2025-02-06 13:49:23,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2025-02-06 13:49:23,427 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:23,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:23,427 INFO L85 PathProgramCache]: Analyzing trace with hash -405967640, now seen corresponding path program 2 times [2025-02-06 13:49:23,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:23,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192054261] [2025-02-06 13:49:23,427 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:49:23,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:23,432 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 194 statements into 2 equivalence classes. [2025-02-06 13:49:23,441 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 194 of 194 statements. [2025-02-06 13:49:23,442 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:49:23,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2025-02-06 13:49:23,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:23,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192054261] [2025-02-06 13:49:23,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192054261] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:23,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763674242] [2025-02-06 13:49:23,665 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 13:49:23,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:23,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:23,667 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:23,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-02-06 13:49:23,692 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 194 statements into 2 equivalence classes. [2025-02-06 13:49:23,723 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 194 of 194 statements. [2025-02-06 13:49:23,724 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 13:49:23,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:23,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-02-06 13:49:23,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2025-02-06 13:49:24,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 991 backedges. 0 proven. 151 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2025-02-06 13:49:30,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763674242] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 13:49:30,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 13:49:30,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 16] total 45 [2025-02-06 13:49:30,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913659766] [2025-02-06 13:49:30,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:30,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-02-06 13:49:30,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:30,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-02-06 13:49:30,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=562, Invalid=1508, Unknown=0, NotChecked=0, Total=2070 [2025-02-06 13:49:30,783 INFO L87 Difference]: Start difference. First operand 903 states and 1113 transitions. Second operand has 46 states, 45 states have (on average 5.444444444444445) internal successors, (245), 46 states have internal predecessors, (245), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2025-02-06 13:49:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 13:49:45,415 INFO L93 Difference]: Finished difference Result 2046 states and 2545 transitions. [2025-02-06 13:49:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2025-02-06 13:49:45,416 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 5.444444444444445) internal successors, (245), 46 states have internal predecessors, (245), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) Word has length 194 [2025-02-06 13:49:45,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 13:49:45,420 INFO L225 Difference]: With dead ends: 2046 [2025-02-06 13:49:45,420 INFO L226 Difference]: Without dead ends: 2045 [2025-02-06 13:49:45,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 349 SyntacticMatches, 4 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9335 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=5675, Invalid=15205, Unknown=0, NotChecked=0, Total=20880 [2025-02-06 13:49:45,424 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 1939 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 3571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-02-06 13:49:45,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 765 Invalid, 3571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 2981 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-02-06 13:49:45,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2025-02-06 13:49:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1149. [2025-02-06 13:49:45,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 991 states have (on average 1.1321897073662968) internal successors, (1122), 998 states have internal predecessors, (1122), 149 states have call successors, (149), 1 states have call predecessors, (149), 1 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2025-02-06 13:49:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1420 transitions. [2025-02-06 13:49:45,631 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1420 transitions. Word has length 194 [2025-02-06 13:49:45,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 13:49:45,631 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1420 transitions. [2025-02-06 13:49:45,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 5.444444444444445) internal successors, (245), 46 states have internal predecessors, (245), 20 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 20 states have call predecessors, (54), 20 states have call successors, (54) [2025-02-06 13:49:45,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1420 transitions. [2025-02-06 13:49:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2025-02-06 13:49:45,633 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 13:49:45,633 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 13:49:45,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2025-02-06 13:49:45,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-02-06 13:49:45,833 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 13:49:45,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 13:49:45,834 INFO L85 PathProgramCache]: Analyzing trace with hash -786086870, now seen corresponding path program 3 times [2025-02-06 13:49:45,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 13:49:45,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777114511] [2025-02-06 13:49:45,834 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:49:45,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 13:49:45,838 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 195 statements into 10 equivalence classes. [2025-02-06 13:49:45,859 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 195 of 195 statements. [2025-02-06 13:49:45,859 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-02-06 13:49:45,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 13:49:45,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1158869585] [2025-02-06 13:49:45,860 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 13:49:45,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 13:49:45,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 13:49:45,861 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 13:49:45,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-02-06 13:49:45,885 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 195 statements into 10 equivalence classes. [2025-02-06 13:49:45,900 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 75 of 195 statements. [2025-02-06 13:49:45,900 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-06 13:49:45,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 13:49:45,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 13:49:45,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 13:49:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 104 proven. 5 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2025-02-06 13:49:46,353 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 13:49:47,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 13:49:47,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777114511] [2025-02-06 13:49:47,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 13:49:47,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158869585] [2025-02-06 13:49:47,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158869585] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 13:49:47,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 13:49:47,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-02-06 13:49:47,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253873851] [2025-02-06 13:49:47,726 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 13:49:47,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 13:49:47,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 13:49:47,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 13:49:47,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2025-02-06 13:49:47,727 INFO L87 Difference]: Start difference. First operand 1149 states and 1420 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7)