./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound50.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-scaling/ps2-ll_unwindbound50.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 82dba59912342fc33baf6f71838a6b7d05440c02338f64f7b1e8151e293c49a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 14:20:34,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 14:20:34,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 14:20:34,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 14:20:34,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 14:20:34,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 14:20:34,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 14:20:34,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 14:20:34,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 14:20:34,256 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 14:20:34,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 14:20:34,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 14:20:34,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 14:20:34,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 14:20:34,257 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 14:20:34,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 14:20:34,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 14:20:34,257 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 14:20:34,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 14:20:34,258 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 14:20:34,258 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:20:34,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 14:20:34,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 14:20:34,259 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 -> 82dba59912342fc33baf6f71838a6b7d05440c02338f64f7b1e8151e293c49a7 [2025-02-06 14:20:34,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 14:20:34,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 14:20:34,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 14:20:34,473 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 14:20:34,473 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 14:20:34,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound50.c [2025-02-06 14:20:35,567 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/85d8cd159/ff248d8e676c4fe5844dee782592b8c2/FLAGa1b4647f3 [2025-02-06 14:20:35,787 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 14:20:35,788 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound50.c [2025-02-06 14:20:35,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/85d8cd159/ff248d8e676c4fe5844dee782592b8c2/FLAGa1b4647f3 [2025-02-06 14:20:36,130 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/85d8cd159/ff248d8e676c4fe5844dee782592b8c2 [2025-02-06 14:20:36,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 14:20:36,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 14:20:36,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 14:20:36,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 14:20:36,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 14:20:36,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a78a477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36, skipping insertion in model container [2025-02-06 14:20:36,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,151 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 14:20:36,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:20:36,278 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 14:20:36,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:20:36,297 INFO L204 MainTranslator]: Completed translation [2025-02-06 14:20:36,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36 WrapperNode [2025-02-06 14:20:36,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 14:20:36,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 14:20:36,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 14:20:36,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 14:20:36,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,319 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2025-02-06 14:20:36,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 14:20:36,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 14:20:36,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 14:20:36,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 14:20:36,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,332 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,339 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 14:20:36,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 14:20:36,346 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 14:20:36,346 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 14:20:36,346 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 14:20:36,347 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (1/1) ... [2025-02-06 14:20:36,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:20:36,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:36,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 14:20:36,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 14:20:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 14:20:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 14:20:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 14:20:36,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 14:20:36,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 14:20:36,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 14:20:36,440 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 14:20:36,441 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 14:20:36,612 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2025-02-06 14:20:36,613 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 14:20:36,619 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 14:20:36,619 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 14:20:36,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:20:36 BoogieIcfgContainer [2025-02-06 14:20:36,620 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 14:20:36,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 14:20:36,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 14:20:36,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 14:20:36,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:20:36" (1/3) ... [2025-02-06 14:20:36,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c7a7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:20:36, skipping insertion in model container [2025-02-06 14:20:36,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:20:36" (2/3) ... [2025-02-06 14:20:36,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c7a7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:20:36, skipping insertion in model container [2025-02-06 14:20:36,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:20:36" (3/3) ... [2025-02-06 14:20:36,626 INFO L128 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound50.c [2025-02-06 14:20:36,635 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 14:20:36,636 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps2-ll_unwindbound50.c that has 2 procedures, 65 locations, 1 initial locations, 1 loop locations, and 24 error locations. [2025-02-06 14:20:36,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 14:20:36,685 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;@6358c502, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 14:20:36,685 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2025-02-06 14:20:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 61 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 14:20:36,691 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:36,691 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 14:20:36,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:36,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:36,694 INFO L85 PathProgramCache]: Analyzing trace with hash 2769503, now seen corresponding path program 1 times [2025-02-06 14:20:36,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:36,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381475335] [2025-02-06 14:20:36,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:36,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:36,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 14:20:36,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 14:20:36,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:36,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:36,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:36,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381475335] [2025-02-06 14:20:36,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381475335] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:36,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:20:36,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:20:36,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38574477] [2025-02-06 14:20:36,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:36,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:20:36,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:36,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:20:36,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:20:36,843 INFO L87 Difference]: Start difference. First operand has 65 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 61 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 14:20:36,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:36,907 INFO L93 Difference]: Finished difference Result 129 states and 145 transitions. [2025-02-06 14:20:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:20:36,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-02-06 14:20:36,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:36,912 INFO L225 Difference]: With dead ends: 129 [2025-02-06 14:20:36,912 INFO L226 Difference]: Without dead ends: 60 [2025-02-06 14:20:36,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 14:20:36,915 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 4 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:36,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 174 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:36,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-02-06 14:20:36,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-02-06 14:20:36,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 57 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:36,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2025-02-06 14:20:36,943 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 4 [2025-02-06 14:20:36,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:36,943 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2025-02-06 14:20:36,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 14:20:36,943 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2025-02-06 14:20:36,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 14:20:36,943 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:36,944 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:20:36,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 14:20:36,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:36,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:36,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2105622373, now seen corresponding path program 1 times [2025-02-06 14:20:36,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:36,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677067081] [2025-02-06 14:20:36,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:36,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:36,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 14:20:36,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 14:20:36,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:36,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:20:36,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858049498] [2025-02-06 14:20:36,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:36,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:36,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:36,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:36,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 14:20:37,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 14:20:37,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 14:20:37,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:37,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:37,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 14:20:37,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:37,048 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:20:37,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:37,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677067081] [2025-02-06 14:20:37,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:20:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858049498] [2025-02-06 14:20:37,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858049498] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:37,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:20:37,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:20:37,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384510592] [2025-02-06 14:20:37,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:37,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 14:20:37,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:37,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 14:20:37,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:20:37,051 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 14:20:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:37,111 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2025-02-06 14:20:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 14:20:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 14:20:37,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:37,112 INFO L225 Difference]: With dead ends: 92 [2025-02-06 14:20:37,112 INFO L226 Difference]: Without dead ends: 88 [2025-02-06 14:20:37,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:20:37,113 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 25 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:37,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 63 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:20:37,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-02-06 14:20:37,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 76. [2025-02-06 14:20:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.6274509803921569) internal successors, (83), 72 states have internal predecessors, (83), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2025-02-06 14:20:37,118 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 8 [2025-02-06 14:20:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:37,118 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2025-02-06 14:20:37,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 14:20:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2025-02-06 14:20:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-06 14:20:37,119 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:37,119 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:20:37,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 14:20:37,322 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 14:20:37,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:37,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:37,324 INFO L85 PathProgramCache]: Analyzing trace with hash -849784108, now seen corresponding path program 1 times [2025-02-06 14:20:37,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:37,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008861834] [2025-02-06 14:20:37,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:37,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:37,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 14:20:37,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 14:20:37,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:37,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:37,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:37,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008861834] [2025-02-06 14:20:37,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008861834] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:37,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:20:37,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:20:37,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521141889] [2025-02-06 14:20:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:37,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 14:20:37,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:37,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 14:20:37,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:20:37,362 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:20:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:37,473 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2025-02-06 14:20:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 14:20:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-06 14:20:37,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:37,477 INFO L225 Difference]: With dead ends: 94 [2025-02-06 14:20:37,477 INFO L226 Difference]: Without dead ends: 86 [2025-02-06 14:20:37,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:20:37,478 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 22 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:37,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:20:37,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-02-06 14:20:37,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2025-02-06 14:20:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 77 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:37,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2025-02-06 14:20:37,488 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 9 [2025-02-06 14:20:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:37,488 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2025-02-06 14:20:37,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:20:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2025-02-06 14:20:37,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 14:20:37,492 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:37,492 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:20:37,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 14:20:37,492 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:37,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:37,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1381105961, now seen corresponding path program 1 times [2025-02-06 14:20:37,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:37,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526749815] [2025-02-06 14:20:37,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:37,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:37,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 14:20:37,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 14:20:37,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:37,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:37,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:37,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526749815] [2025-02-06 14:20:37,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526749815] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:37,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:20:37,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:20:37,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127907372] [2025-02-06 14:20:37,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:37,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:20:37,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:37,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:20:37,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:20:37,563 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14:20:37,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:37,663 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2025-02-06 14:20:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:20:37,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2025-02-06 14:20:37,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:37,664 INFO L225 Difference]: With dead ends: 90 [2025-02-06 14:20:37,664 INFO L226 Difference]: Without dead ends: 78 [2025-02-06 14:20:37,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:20:37,664 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 24 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:37,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 84 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:20:37,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-02-06 14:20:37,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2025-02-06 14:20:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.510204081632653) internal successors, (74), 70 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:37,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2025-02-06 14:20:37,668 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 12 [2025-02-06 14:20:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:37,668 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2025-02-06 14:20:37,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14:20:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2025-02-06 14:20:37,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-02-06 14:20:37,669 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:37,669 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:20:37,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 14:20:37,669 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:37,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash 92866451, now seen corresponding path program 1 times [2025-02-06 14:20:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:37,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846810153] [2025-02-06 14:20:37,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:37,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:37,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 14:20:37,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 14:20:37,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:37,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:37,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:37,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:37,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846810153] [2025-02-06 14:20:37,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846810153] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:37,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:20:37,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:20:37,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821185915] [2025-02-06 14:20:37,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:37,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 14:20:37,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:37,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 14:20:37,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:20:37,727 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:37,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:37,738 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2025-02-06 14:20:37,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 14:20:37,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2025-02-06 14:20:37,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:37,739 INFO L225 Difference]: With dead ends: 76 [2025-02-06 14:20:37,739 INFO L226 Difference]: Without dead ends: 74 [2025-02-06 14:20:37,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:20:37,739 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 1 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:37,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 104 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:37,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2025-02-06 14:20:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2025-02-06 14:20:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.469387755102041) internal successors, (72), 70 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2025-02-06 14:20:37,743 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 21 [2025-02-06 14:20:37,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:37,746 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2025-02-06 14:20:37,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:37,747 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2025-02-06 14:20:37,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 14:20:37,747 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:37,748 INFO L218 NwaCegarLoop]: trace histogram [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 14:20:37,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 14:20:37,748 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:37,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:37,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2084303473, now seen corresponding path program 1 times [2025-02-06 14:20:37,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:37,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773604121] [2025-02-06 14:20:37,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:37,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:37,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 14:20:37,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 14:20:37,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:37,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:37,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:37,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:37,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773604121] [2025-02-06 14:20:37,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773604121] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:37,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:20:37,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:20:37,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002475417] [2025-02-06 14:20:37,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:37,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:20:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:37,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:20:37,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:20:37,830 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:37,916 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2025-02-06 14:20:37,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:20:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2025-02-06 14:20:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:37,917 INFO L225 Difference]: With dead ends: 77 [2025-02-06 14:20:37,918 INFO L226 Difference]: Without dead ends: 76 [2025-02-06 14:20:37,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:20:37,918 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 1 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:37,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 81 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:20:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-02-06 14:20:37,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2025-02-06 14:20:37,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.46) internal successors, (73), 71 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:37,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2025-02-06 14:20:37,926 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 25 [2025-02-06 14:20:37,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:37,926 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2025-02-06 14:20:37,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:37,927 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2025-02-06 14:20:37,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 14:20:37,927 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:37,927 INFO L218 NwaCegarLoop]: trace histogram [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 14:20:37,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 14:20:37,928 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:37,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash -188898233, now seen corresponding path program 1 times [2025-02-06 14:20:37,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:37,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921382379] [2025-02-06 14:20:37,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:37,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 14:20:37,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 14:20:37,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:37,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:37,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:37,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921382379] [2025-02-06 14:20:37,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921382379] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:37,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:20:37,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:20:37,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493724052] [2025-02-06 14:20:37,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:37,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:20:37,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:37,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:20:37,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:20:37,987 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:38,030 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2025-02-06 14:20:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:20:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2025-02-06 14:20:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:38,031 INFO L225 Difference]: With dead ends: 77 [2025-02-06 14:20:38,031 INFO L226 Difference]: Without dead ends: 76 [2025-02-06 14:20:38,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:20:38,032 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:38,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:38,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-02-06 14:20:38,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2025-02-06 14:20:38,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 72 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2025-02-06 14:20:38,036 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 26 [2025-02-06 14:20:38,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:38,036 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2025-02-06 14:20:38,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:38,036 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2025-02-06 14:20:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-02-06 14:20:38,037 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:38,037 INFO L218 NwaCegarLoop]: trace histogram [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 14:20:38,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 14:20:38,037 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:38,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:38,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1142574619, now seen corresponding path program 1 times [2025-02-06 14:20:38,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:38,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832310680] [2025-02-06 14:20:38,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:38,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:38,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 14:20:38,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 14:20:38,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:38,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:38,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:38,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832310680] [2025-02-06 14:20:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832310680] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:38,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947827321] [2025-02-06 14:20:38,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:38,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:38,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:38,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:38,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 14:20:38,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 14:20:38,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 14:20:38,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:38,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:38,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 14:20:38,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:38,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:20:38,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947827321] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:38,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:20:38,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-06 14:20:38,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721564399] [2025-02-06 14:20:38,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:38,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:20:38,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:38,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:20:38,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:20:38,218 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:38,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:38,243 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2025-02-06 14:20:38,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:20:38,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2025-02-06 14:20:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:38,244 INFO L225 Difference]: With dead ends: 76 [2025-02-06 14:20:38,244 INFO L226 Difference]: Without dead ends: 75 [2025-02-06 14:20:38,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:20:38,244 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 36 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:38,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 99 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:38,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2025-02-06 14:20:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2025-02-06 14:20:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 71 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2025-02-06 14:20:38,250 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 28 [2025-02-06 14:20:38,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:38,251 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2025-02-06 14:20:38,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:38,251 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2025-02-06 14:20:38,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-02-06 14:20:38,252 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:38,252 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-06 14:20:38,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 14:20:38,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:38,457 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:38,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1060074798, now seen corresponding path program 1 times [2025-02-06 14:20:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:38,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105828432] [2025-02-06 14:20:38,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:38,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 14:20:38,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 14:20:38,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:38,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:38,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:38,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105828432] [2025-02-06 14:20:38,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105828432] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:38,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749515658] [2025-02-06 14:20:38,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:38,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:38,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:38,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:38,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 14:20:38,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-06 14:20:38,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-06 14:20:38,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:38,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:38,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 14:20:38,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:38,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:20:38,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749515658] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:38,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:20:38,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-06 14:20:38,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392367286] [2025-02-06 14:20:38,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:38,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:20:38,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:38,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:20:38,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:20:38,609 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:38,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:38,642 INFO L93 Difference]: Finished difference Result 90 states and 91 transitions. [2025-02-06 14:20:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:20:38,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2025-02-06 14:20:38,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:38,643 INFO L225 Difference]: With dead ends: 90 [2025-02-06 14:20:38,643 INFO L226 Difference]: Without dead ends: 89 [2025-02-06 14:20:38,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:20:38,643 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 33 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:38,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 201 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:38,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-02-06 14:20:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2025-02-06 14:20:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.411764705882353) internal successors, (72), 70 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2025-02-06 14:20:38,646 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 29 [2025-02-06 14:20:38,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:38,646 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2025-02-06 14:20:38,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2025-02-06 14:20:38,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-06 14:20:38,647 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:38,647 INFO L218 NwaCegarLoop]: trace histogram [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 14:20:38,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 14:20:38,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:38,847 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:38,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:38,848 INFO L85 PathProgramCache]: Analyzing trace with hash 206241057, now seen corresponding path program 1 times [2025-02-06 14:20:38,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:38,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653064129] [2025-02-06 14:20:38,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:38,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:38,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 14:20:38,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 14:20:38,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:38,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:20:38,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476621052] [2025-02-06 14:20:38,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:38,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:38,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:38,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:38,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 14:20:38,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 14:20:38,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 14:20:38,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:38,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:38,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 14:20:38,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:38,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:20:38,991 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:38,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:38,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653064129] [2025-02-06 14:20:38,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:20:38,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476621052] [2025-02-06 14:20:38,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476621052] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:20:38,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:20:38,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-02-06 14:20:38,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874815667] [2025-02-06 14:20:38,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:20:38,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:20:38,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:38,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:20:38,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:20:38,993 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:39,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:39,113 INFO L93 Difference]: Finished difference Result 152 states and 187 transitions. [2025-02-06 14:20:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:20:39,113 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2025-02-06 14:20:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:39,114 INFO L225 Difference]: With dead ends: 152 [2025-02-06 14:20:39,114 INFO L226 Difference]: Without dead ends: 148 [2025-02-06 14:20:39,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:20:39,114 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 95 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:39,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 119 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:20:39,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-02-06 14:20:39,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 120. [2025-02-06 14:20:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 114 states have internal predecessors, (141), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 14:20:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2025-02-06 14:20:39,120 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 32 [2025-02-06 14:20:39,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:39,120 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2025-02-06 14:20:39,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:39,120 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2025-02-06 14:20:39,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-06 14:20:39,121 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:39,121 INFO L218 NwaCegarLoop]: trace histogram [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 14:20:39,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 14:20:39,321 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,SelfDestructingSolverStorable9 [2025-02-06 14:20:39,321 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:39,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2098505486, now seen corresponding path program 1 times [2025-02-06 14:20:39,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:39,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259067021] [2025-02-06 14:20:39,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:39,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:39,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 14:20:39,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 14:20:39,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:39,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:39,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259067021] [2025-02-06 14:20:39,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259067021] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883902293] [2025-02-06 14:20:39,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:39,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:39,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:39,373 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:39,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 14:20:39,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 14:20:39,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 14:20:39,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:39,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:39,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 14:20:39,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:39,491 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:39,491 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:20:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:39,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883902293] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:20:39,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:20:39,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-06 14:20:39,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811791414] [2025-02-06 14:20:39,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:20:39,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 14:20:39,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:39,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 14:20:39,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:20:39,547 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:20:39,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:39,655 INFO L93 Difference]: Finished difference Result 120 states and 149 transitions. [2025-02-06 14:20:39,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:20:39,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2025-02-06 14:20:39,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:39,657 INFO L225 Difference]: With dead ends: 120 [2025-02-06 14:20:39,657 INFO L226 Difference]: Without dead ends: 117 [2025-02-06 14:20:39,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:20:39,657 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 74 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:39,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 100 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:20:39,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-02-06 14:20:39,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-02-06 14:20:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 111 states have internal predecessors, (134), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 14:20:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2025-02-06 14:20:39,664 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 142 transitions. Word has length 33 [2025-02-06 14:20:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:39,664 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 142 transitions. [2025-02-06 14:20:39,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:20:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 142 transitions. [2025-02-06 14:20:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-02-06 14:20:39,665 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:39,665 INFO L218 NwaCegarLoop]: trace histogram [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 14:20:39,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 14:20:39,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-06 14:20:39,869 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:39,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:39,870 INFO L85 PathProgramCache]: Analyzing trace with hash 629160639, now seen corresponding path program 1 times [2025-02-06 14:20:39,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:39,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157022589] [2025-02-06 14:20:39,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:39,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:39,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 14:20:39,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 14:20:39,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:39,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:39,918 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:39,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:39,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157022589] [2025-02-06 14:20:39,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157022589] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:39,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970146190] [2025-02-06 14:20:39,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:39,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:39,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:39,924 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:39,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 14:20:39,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 14:20:39,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 14:20:39,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:39,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:39,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 14:20:39,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:40,035 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:20:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:40,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970146190] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:20:40,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:20:40,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-06 14:20:40,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666900651] [2025-02-06 14:20:40,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:20:40,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 14:20:40,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:40,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 14:20:40,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:20:40,105 INFO L87 Difference]: Start difference. First operand 117 states and 142 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:20:40,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:40,233 INFO L93 Difference]: Finished difference Result 134 states and 159 transitions. [2025-02-06 14:20:40,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:20:40,233 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 34 [2025-02-06 14:20:40,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:40,234 INFO L225 Difference]: With dead ends: 134 [2025-02-06 14:20:40,234 INFO L226 Difference]: Without dead ends: 127 [2025-02-06 14:20:40,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:20:40,235 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 66 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:40,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 116 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:20:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2025-02-06 14:20:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 117. [2025-02-06 14:20:40,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 111 states have internal predecessors, (127), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 14:20:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2025-02-06 14:20:40,242 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 34 [2025-02-06 14:20:40,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:40,242 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2025-02-06 14:20:40,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:20:40,242 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2025-02-06 14:20:40,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-02-06 14:20:40,243 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:40,243 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-06 14:20:40,249 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 14:20:40,447 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,SelfDestructingSolverStorable11 [2025-02-06 14:20:40,447 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:40,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:40,447 INFO L85 PathProgramCache]: Analyzing trace with hash -967014307, now seen corresponding path program 1 times [2025-02-06 14:20:40,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:40,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365106006] [2025-02-06 14:20:40,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:40,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:40,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 14:20:40,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 14:20:40,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:40,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:40,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:40,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365106006] [2025-02-06 14:20:40,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365106006] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:40,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367406316] [2025-02-06 14:20:40,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:40,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:40,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:40,566 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:40,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 14:20:40,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 14:20:40,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 14:20:40,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:40,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:40,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 14:20:40,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:40,706 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:20:40,706 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:20:40,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367406316] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:40,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:20:40,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2025-02-06 14:20:40,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722926262] [2025-02-06 14:20:40,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:40,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:20:40,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:40,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:20:40,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:20:40,707 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:40,766 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2025-02-06 14:20:40,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:20:40,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2025-02-06 14:20:40,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:40,767 INFO L225 Difference]: With dead ends: 119 [2025-02-06 14:20:40,767 INFO L226 Difference]: Without dead ends: 105 [2025-02-06 14:20:40,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:20:40,768 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 29 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:40,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 59 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:20:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-02-06 14:20:40,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-02-06 14:20:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 93 states have (on average 1.1397849462365592) internal successors, (106), 99 states have internal predecessors, (106), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 14:20:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2025-02-06 14:20:40,775 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 36 [2025-02-06 14:20:40,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:40,776 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2025-02-06 14:20:40,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:20:40,776 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2025-02-06 14:20:40,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-06 14:20:40,777 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:40,777 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-06 14:20:40,783 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 14:20:40,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:40,978 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:40,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:40,978 INFO L85 PathProgramCache]: Analyzing trace with hash -57289523, now seen corresponding path program 1 times [2025-02-06 14:20:40,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:40,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70829067] [2025-02-06 14:20:40,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:40,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:40,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 14:20:40,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 14:20:40,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:40,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 14:20:41,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:41,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70829067] [2025-02-06 14:20:41,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70829067] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:41,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169242677] [2025-02-06 14:20:41,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:41,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:41,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:41,036 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:41,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 14:20:41,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 14:20:41,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 14:20:41,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:41,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:41,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 14:20:41,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 14:20:41,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:20:41,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169242677] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:41,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:20:41,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-02-06 14:20:41,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806390505] [2025-02-06 14:20:41,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:41,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:20:41,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:41,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:20:41,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:20:41,113 INFO L87 Difference]: Start difference. First operand 105 states and 114 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:41,124 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2025-02-06 14:20:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:20:41,125 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2025-02-06 14:20:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:41,125 INFO L225 Difference]: With dead ends: 105 [2025-02-06 14:20:41,125 INFO L226 Difference]: Without dead ends: 104 [2025-02-06 14:20:41,126 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 14:20:41,126 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:41,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 70 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-02-06 14:20:41,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-02-06 14:20:41,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 93 states have (on average 1.10752688172043) internal successors, (103), 98 states have internal predecessors, (103), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 14:20:41,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2025-02-06 14:20:41,130 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 111 transitions. Word has length 45 [2025-02-06 14:20:41,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:41,130 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 111 transitions. [2025-02-06 14:20:41,130 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:41,130 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 111 transitions. [2025-02-06 14:20:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-02-06 14:20:41,131 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:41,131 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-06 14:20:41,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 14:20:41,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:41,335 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:41,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1775975215, now seen corresponding path program 1 times [2025-02-06 14:20:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668114328] [2025-02-06 14:20:41,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:41,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:41,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 14:20:41,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 14:20:41,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:41,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 14:20:41,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:41,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668114328] [2025-02-06 14:20:41,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668114328] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:41,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885573550] [2025-02-06 14:20:41,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:41,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:41,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:41,373 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:41,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 14:20:41,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 14:20:41,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 14:20:41,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:41,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:41,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 14:20:41,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:41,453 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 14:20:41,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:20:41,495 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 14:20:41,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885573550] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:20:41,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:20:41,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-02-06 14:20:41,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264210430] [2025-02-06 14:20:41,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:20:41,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:20:41,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:41,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:20:41,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:20:41,497 INFO L87 Difference]: Start difference. First operand 104 states and 111 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 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 14:20:41,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:41,524 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2025-02-06 14:20:41,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:20:41,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 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) Word has length 46 [2025-02-06 14:20:41,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:41,525 INFO L225 Difference]: With dead ends: 120 [2025-02-06 14:20:41,525 INFO L226 Difference]: Without dead ends: 119 [2025-02-06 14:20:41,525 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 14:20:41,525 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 11 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:41,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 142 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:41,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2025-02-06 14:20:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2025-02-06 14:20:41,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 102 states have (on average 1.088235294117647) internal successors, (111), 107 states have internal predecessors, (111), 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 14:20:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 121 transitions. [2025-02-06 14:20:41,529 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 121 transitions. Word has length 46 [2025-02-06 14:20:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:41,529 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 121 transitions. [2025-02-06 14:20:41,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 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 14:20:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 121 transitions. [2025-02-06 14:20:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-06 14:20:41,530 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:41,530 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2025-02-06 14:20:41,537 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 14:20:41,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:41,731 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:41,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:41,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1700577197, now seen corresponding path program 1 times [2025-02-06 14:20:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:41,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582088277] [2025-02-06 14:20:41,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:41,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:41,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 14:20:41,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 14:20:41,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:41,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:41,849 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 14:20:41,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:41,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582088277] [2025-02-06 14:20:41,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582088277] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:41,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541459711] [2025-02-06 14:20:41,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:20:41,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:41,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:41,853 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:41,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 14:20:41,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 14:20:41,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 14:20:41,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:20:41,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:41,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 14:20:41,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 14:20:42,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:20:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 14:20:42,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541459711] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:20:42,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:20:42,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2025-02-06 14:20:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854050577] [2025-02-06 14:20:42,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:20:42,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-06 14:20:42,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:42,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-06 14:20:42,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2025-02-06 14:20:42,239 INFO L87 Difference]: Start difference. First operand 114 states and 121 transitions. Second operand has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 14:20:42,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:42,484 INFO L93 Difference]: Finished difference Result 171 states and 190 transitions. [2025-02-06 14:20:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 14:20:42,484 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 74 [2025-02-06 14:20:42,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:42,485 INFO L225 Difference]: With dead ends: 171 [2025-02-06 14:20:42,485 INFO L226 Difference]: Without dead ends: 170 [2025-02-06 14:20:42,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2025-02-06 14:20:42,486 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:42,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 172 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:20:42,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-02-06 14:20:42,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 158. [2025-02-06 14:20:42,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 144 states have (on average 1.1111111111111112) internal successors, (160), 149 states have internal predecessors, (160), 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 14:20:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 174 transitions. [2025-02-06 14:20:42,492 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 174 transitions. Word has length 74 [2025-02-06 14:20:42,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:42,492 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 174 transitions. [2025-02-06 14:20:42,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 14:20:42,493 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 174 transitions. [2025-02-06 14:20:42,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-06 14:20:42,494 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:42,494 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2025-02-06 14:20:42,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 14:20:42,694 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,SelfDestructingSolverStorable15 [2025-02-06 14:20:42,694 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:42,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:42,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1119941941, now seen corresponding path program 2 times [2025-02-06 14:20:42,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:42,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910141414] [2025-02-06 14:20:42,696 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:20:42,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:42,700 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 82 statements into 2 equivalence classes. [2025-02-06 14:20:42,708 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 82 of 82 statements. [2025-02-06 14:20:42,709 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:20:42,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:42,859 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 14:20:42,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:42,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910141414] [2025-02-06 14:20:42,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910141414] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:42,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186515151] [2025-02-06 14:20:42,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:20:42,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:42,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:42,863 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:42,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 14:20:42,886 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 82 statements into 2 equivalence classes. [2025-02-06 14:20:42,900 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 82 of 82 statements. [2025-02-06 14:20:42,900 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:20:42,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:42,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 14:20:42,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 14:20:43,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:20:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 14:20:43,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186515151] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:20:43,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:20:43,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-02-06 14:20:43,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817225690] [2025-02-06 14:20:43,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:20:43,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-06 14:20:43,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:43,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-06 14:20:43,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=297, Unknown=0, NotChecked=0, Total=462 [2025-02-06 14:20:43,214 INFO L87 Difference]: Start difference. First operand 158 states and 174 transitions. Second operand has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 14:20:43,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:43,569 INFO L93 Difference]: Finished difference Result 186 states and 202 transitions. [2025-02-06 14:20:43,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 14:20:43,569 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 82 [2025-02-06 14:20:43,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:43,570 INFO L225 Difference]: With dead ends: 186 [2025-02-06 14:20:43,570 INFO L226 Difference]: Without dead ends: 174 [2025-02-06 14:20:43,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2025-02-06 14:20:43,571 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:43,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 182 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:20:43,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-02-06 14:20:43,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2025-02-06 14:20:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 152 states have (on average 1.0921052631578947) internal successors, (166), 157 states have internal predecessors, (166), 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 14:20:43,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 180 transitions. [2025-02-06 14:20:43,578 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 180 transitions. Word has length 82 [2025-02-06 14:20:43,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:43,578 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 180 transitions. [2025-02-06 14:20:43,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-06 14:20:43,579 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 180 transitions. [2025-02-06 14:20:43,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-02-06 14:20:43,580 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:43,580 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2025-02-06 14:20:43,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 14:20:43,781 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,SelfDestructingSolverStorable16 [2025-02-06 14:20:43,781 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:43,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:43,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1367443123, now seen corresponding path program 2 times [2025-02-06 14:20:43,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:43,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938501888] [2025-02-06 14:20:43,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:20:43,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:43,788 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 104 statements into 2 equivalence classes. [2025-02-06 14:20:43,801 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-02-06 14:20:43,801 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:20:43,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:20:43,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850746125] [2025-02-06 14:20:43,802 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:20:43,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:43,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:43,811 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:20:43,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 14:20:43,834 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 104 statements into 2 equivalence classes. [2025-02-06 14:20:43,851 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-02-06 14:20:43,851 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:20:43,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:43,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-06 14:20:43,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 14:20:43,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:20:44,142 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 14:20:44,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:44,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938501888] [2025-02-06 14:20:44,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:20:44,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850746125] [2025-02-06 14:20:44,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850746125] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:20:44,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:20:44,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-02-06 14:20:44,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576320140] [2025-02-06 14:20:44,142 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:20:44,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 14:20:44,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:44,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 14:20:44,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:20:44,143 INFO L87 Difference]: Start difference. First operand 166 states and 180 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 14:20:44,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:44,494 INFO L93 Difference]: Finished difference Result 249 states and 272 transitions. [2025-02-06 14:20:44,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 14:20:44,495 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 104 [2025-02-06 14:20:44,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:44,496 INFO L225 Difference]: With dead ends: 249 [2025-02-06 14:20:44,496 INFO L226 Difference]: Without dead ends: 241 [2025-02-06 14:20:44,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2025-02-06 14:20:44,497 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 143 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:44,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 363 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:20:44,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-02-06 14:20:44,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 224. [2025-02-06 14:20:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 207 states have (on average 1.0917874396135265) internal successors, (226), 212 states have internal predecessors, (226), 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 14:20:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 246 transitions. [2025-02-06 14:20:44,510 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 246 transitions. Word has length 104 [2025-02-06 14:20:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:44,510 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 246 transitions. [2025-02-06 14:20:44,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 14:20:44,511 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 246 transitions. [2025-02-06 14:20:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-02-06 14:20:44,511 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:44,511 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2025-02-06 14:20:44,519 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 14:20:44,712 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,SelfDestructingSolverStorable17 [2025-02-06 14:20:44,712 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:44,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash 802825955, now seen corresponding path program 2 times [2025-02-06 14:20:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:44,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610953839] [2025-02-06 14:20:44,713 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:20:44,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:44,719 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-02-06 14:20:44,722 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 118 statements. [2025-02-06 14:20:44,722 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 14:20:44,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2025-02-06 14:20:44,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:44,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610953839] [2025-02-06 14:20:44,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610953839] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:44,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718186551] [2025-02-06 14:20:44,741 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:20:44,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:44,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:44,745 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 14:20:44,747 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 14:20:44,767 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-02-06 14:20:44,773 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 118 statements. [2025-02-06 14:20:44,773 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 14:20:44,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:44,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 14:20:44,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:44,857 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2025-02-06 14:20:44,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:20:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2025-02-06 14:20:44,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718186551] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:20:44,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:20:44,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-02-06 14:20:44,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578174293] [2025-02-06 14:20:44,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:20:44,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:20:44,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:44,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:20:44,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:20:44,961 INFO L87 Difference]: Start difference. First operand 224 states and 246 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:44,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:44,982 INFO L93 Difference]: Finished difference Result 224 states and 246 transitions. [2025-02-06 14:20:44,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:20:44,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 118 [2025-02-06 14:20:44,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:44,985 INFO L225 Difference]: With dead ends: 224 [2025-02-06 14:20:44,985 INFO L226 Difference]: Without dead ends: 223 [2025-02-06 14:20:44,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:20:44,985 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 67 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:44,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 67 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:44,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2025-02-06 14:20:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2025-02-06 14:20:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 207 states have (on average 1.0628019323671498) internal successors, (220), 211 states have internal predecessors, (220), 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 14:20:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 240 transitions. [2025-02-06 14:20:44,995 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 240 transitions. Word has length 118 [2025-02-06 14:20:44,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:44,995 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 240 transitions. [2025-02-06 14:20:44,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 240 transitions. [2025-02-06 14:20:44,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-02-06 14:20:44,998 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:44,999 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2025-02-06 14:20:45,004 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 14:20:45,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:45,199 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:45,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash -520085397, now seen corresponding path program 2 times [2025-02-06 14:20:45,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:45,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280759063] [2025-02-06 14:20:45,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:20:45,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:45,207 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 170 statements into 2 equivalence classes. [2025-02-06 14:20:45,239 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 170 of 170 statements. [2025-02-06 14:20:45,239 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 14:20:45,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-02-06 14:20:45,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:45,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280759063] [2025-02-06 14:20:45,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280759063] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:45,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682860131] [2025-02-06 14:20:45,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 14:20:45,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:45,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:45,523 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 14:20:45,524 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 14:20:45,545 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 170 statements into 2 equivalence classes. [2025-02-06 14:20:45,551 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 170 statements. [2025-02-06 14:20:45,551 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 14:20:45,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:45,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 14:20:45,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:20:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2025-02-06 14:20:45,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:20:45,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682860131] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:20:45,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:20:45,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2025-02-06 14:20:45,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005151012] [2025-02-06 14:20:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:20:45,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:20:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:20:45,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:20:45,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2025-02-06 14:20:45,689 INFO L87 Difference]: Start difference. First operand 223 states and 240 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:45,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:20:45,748 INFO L93 Difference]: Finished difference Result 225 states and 242 transitions. [2025-02-06 14:20:45,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 14:20:45,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 170 [2025-02-06 14:20:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:20:45,750 INFO L225 Difference]: With dead ends: 225 [2025-02-06 14:20:45,750 INFO L226 Difference]: Without dead ends: 224 [2025-02-06 14:20:45,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2025-02-06 14:20:45,750 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 32 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:20:45,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 68 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:20:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2025-02-06 14:20:45,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2025-02-06 14:20:45,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 207 states have (on average 1.0434782608695652) internal successors, (216), 210 states have internal predecessors, (216), 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 14:20:45,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 236 transitions. [2025-02-06 14:20:45,760 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 236 transitions. Word has length 170 [2025-02-06 14:20:45,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:20:45,760 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 236 transitions. [2025-02-06 14:20:45,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:20:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 236 transitions. [2025-02-06 14:20:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-02-06 14:20:45,761 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:20:45,761 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2025-02-06 14:20:45,769 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 14:20:45,966 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 14:20:45,966 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:20:45,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:20:45,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1356442909, now seen corresponding path program 3 times [2025-02-06 14:20:45,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:20:45,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376732273] [2025-02-06 14:20:45,967 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:20:45,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:20:45,975 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 178 statements into 8 equivalence classes. [2025-02-06 14:20:46,022 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 178 of 178 statements. [2025-02-06 14:20:46,022 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-02-06 14:20:46,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:46,350 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 476 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-02-06 14:20:46,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:20:46,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376732273] [2025-02-06 14:20:46,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376732273] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:20:46,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937609240] [2025-02-06 14:20:46,351 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:20:46,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:20:46,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:20:46,355 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 14:20:46,355 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 14:20:46,382 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 178 statements into 8 equivalence classes. [2025-02-06 14:20:46,392 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 34 of 178 statements. [2025-02-06 14:20:46,392 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 14:20:46,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:20:46,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 14:20:46,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:21:20,219 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2025-02-06 14:21:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2025-02-06 14:21:24,236 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:21:24,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937609240] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:21:24,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:21:24,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2025-02-06 14:21:24,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816976179] [2025-02-06 14:21:24,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:21:24,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 14:21:24,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:21:24,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 14:21:24,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=423, Unknown=1, NotChecked=42, Total=552 [2025-02-06 14:21:24,238 INFO L87 Difference]: Start difference. First operand 222 states and 236 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:21:36,572 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 22 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-02-06 14:21:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:21:44,841 INFO L93 Difference]: Finished difference Result 224 states and 238 transitions. [2025-02-06 14:21:44,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 14:21:44,841 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 178 [2025-02-06 14:21:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:21:44,842 INFO L225 Difference]: With dead ends: 224 [2025-02-06 14:21:44,843 INFO L226 Difference]: Without dead ends: 218 [2025-02-06 14:21:44,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=116, Invalid=641, Unknown=3, NotChecked=52, Total=812 [2025-02-06 14:21:44,843 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 58 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:21:44,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 63 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 109 Invalid, 0 Unknown, 51 Unchecked, 0.1s Time] [2025-02-06 14:21:44,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2025-02-06 14:21:44,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2025-02-06 14:21:44,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.0098522167487685) internal successors, (205), 204 states have internal predecessors, (205), 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 14:21:44,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 225 transitions. [2025-02-06 14:21:44,855 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 225 transitions. Word has length 178 [2025-02-06 14:21:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:21:44,855 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 225 transitions. [2025-02-06 14:21:44,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:21:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 225 transitions. [2025-02-06 14:21:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2025-02-06 14:21:44,856 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:21:44,857 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2025-02-06 14:21:44,863 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 14:21:45,061 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 14:21:45,061 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:21:45,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:21:45,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1637536727, now seen corresponding path program 3 times [2025-02-06 14:21:45,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:21:45,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742873544] [2025-02-06 14:21:45,062 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:21:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:21:45,074 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 248 statements into 11 equivalence classes. [2025-02-06 14:21:45,146 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 248 of 248 statements. [2025-02-06 14:21:45,146 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 14:21:45,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:21:45,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921914414] [2025-02-06 14:21:45,148 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 14:21:45,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:21:45,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:21:45,150 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 14:21:45,151 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 14:21:45,179 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 248 statements into 11 equivalence classes. [2025-02-06 14:21:45,252 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 248 of 248 statements. [2025-02-06 14:21:45,252 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-06 14:21:45,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:21:45,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-06 14:21:45,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:21:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-02-06 14:21:45,556 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:21:46,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-02-06 14:21:46,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:21:46,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742873544] [2025-02-06 14:21:46,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:21:46,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921914414] [2025-02-06 14:21:46,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921914414] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:21:46,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:21:46,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2025-02-06 14:21:46,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115931037] [2025-02-06 14:21:46,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:21:46,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 14:21:46,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:21:46,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 14:21:46,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2025-02-06 14:21:46,193 INFO L87 Difference]: Start difference. First operand 216 states and 225 transitions. Second operand has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 14:21:47,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:21:47,412 INFO L93 Difference]: Finished difference Result 482 states and 525 transitions. [2025-02-06 14:21:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 14:21:47,413 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 248 [2025-02-06 14:21:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:21:47,415 INFO L225 Difference]: With dead ends: 482 [2025-02-06 14:21:47,415 INFO L226 Difference]: Without dead ends: 456 [2025-02-06 14:21:47,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 14:21:47,420 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 297 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 14:21:47,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1415 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-06 14:21:47,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2025-02-06 14:21:47,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2025-02-06 14:21:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 431 states have (on average 1.0046403712296983) internal successors, (433), 432 states have internal predecessors, (433), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-02-06 14:21:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 477 transitions. [2025-02-06 14:21:47,456 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 477 transitions. Word has length 248 [2025-02-06 14:21:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:21:47,456 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 477 transitions. [2025-02-06 14:21:47,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-02-06 14:21:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 477 transitions. [2025-02-06 14:21:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2025-02-06 14:21:47,461 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:21:47,461 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2025-02-06 14:21:47,469 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 14:21:47,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:21:47,665 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:21:47,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:21:47,665 INFO L85 PathProgramCache]: Analyzing trace with hash -352954849, now seen corresponding path program 4 times [2025-02-06 14:21:47,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:21:47,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194410087] [2025-02-06 14:21:47,666 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:21:47,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:21:47,678 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 536 statements into 2 equivalence classes. [2025-02-06 14:21:47,734 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 536 of 536 statements. [2025-02-06 14:21:47,734 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:21:47,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:21:47,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536828207] [2025-02-06 14:21:47,737 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 14:21:47,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:21:47,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:21:47,739 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 14:21:47,740 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 14:21:47,776 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 536 statements into 2 equivalence classes. [2025-02-06 14:21:47,862 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 536 of 536 statements. [2025-02-06 14:21:47,862 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 14:21:47,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:21:47,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-02-06 14:21:47,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:21:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5676 backedges. 0 proven. 4752 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-06 14:21:48,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:21:50,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5676 backedges. 0 proven. 4752 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-02-06 14:21:50,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:21:50,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194410087] [2025-02-06 14:21:50,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:21:50,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536828207] [2025-02-06 14:21:50,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536828207] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:21:50,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:21:50,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2025-02-06 14:21:50,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761724843] [2025-02-06 14:21:50,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:21:50,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-02-06 14:21:50,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:21:50,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-02-06 14:21:50,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2025-02-06 14:21:50,437 INFO L87 Difference]: Start difference. First operand 456 states and 477 transitions. Second operand has 48 states, 47 states have (on average 18.170212765957448) internal successors, (854), 48 states have internal predecessors, (854), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-06 14:21:55,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:21:55,213 INFO L93 Difference]: Finished difference Result 986 states and 1077 transitions. [2025-02-06 14:21:55,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-02-06 14:21:55,213 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 18.170212765957448) internal successors, (854), 48 states have internal predecessors, (854), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 536 [2025-02-06 14:21:55,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:21:55,217 INFO L225 Difference]: With dead ends: 986 [2025-02-06 14:21:55,217 INFO L226 Difference]: Without dead ends: 936 [2025-02-06 14:21:55,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1092 GetRequests, 1024 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2025-02-06 14:21:55,219 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 834 mSDsluCounter, 5450 mSDsCounter, 0 mSdLazyCounter, 6114 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 5711 SdHoareTripleChecker+Invalid, 6162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 6114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-02-06 14:21:55,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 5711 Invalid, 6162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 6114 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-02-06 14:21:55,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2025-02-06 14:21:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 936. [2025-02-06 14:21:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 887 states have (on average 1.0022547914317925) internal successors, (889), 888 states have internal predecessors, (889), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-02-06 14:21:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 981 transitions. [2025-02-06 14:21:55,256 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 981 transitions. Word has length 536 [2025-02-06 14:21:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:21:55,257 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 981 transitions. [2025-02-06 14:21:55,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 18.170212765957448) internal successors, (854), 48 states have internal predecessors, (854), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-06 14:21:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 981 transitions. [2025-02-06 14:21:55,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1113 [2025-02-06 14:21:55,295 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:21:55,295 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1] [2025-02-06 14:21:55,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-06 14:21:55,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:21:55,496 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-02-06 14:21:55,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:21:55,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1508836689, now seen corresponding path program 5 times [2025-02-06 14:21:55,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:21:55,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585719280] [2025-02-06 14:21:55,497 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 14:21:55,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:21:55,545 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 1112 statements into 47 equivalence classes. [2025-02-06 14:21:55,912 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 1112 of 1112 statements. [2025-02-06 14:21:55,912 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-06 14:21:55,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:21:55,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292329852] [2025-02-06 14:21:55,918 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 14:21:55,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:21:55,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:21:55,923 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 14:21:55,924 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 14:21:55,978 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 1112 statements into 47 equivalence classes. [2025-02-06 14:21:56,991 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 1112 of 1112 statements. [2025-02-06 14:21:56,992 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-02-06 14:21:56,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:21:57,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-02-06 14:21:57,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:21:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 25116 backedges. 0 proven. 20976 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2025-02-06 14:21:59,086 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:22:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 25116 backedges. 0 proven. 20976 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2025-02-06 14:22:04,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:22:04,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585719280] [2025-02-06 14:22:04,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:22:04,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292329852] [2025-02-06 14:22:04,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292329852] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:22:04,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:22:04,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2025-02-06 14:22:04,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254391231] [2025-02-06 14:22:04,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:22:04,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-02-06 14:22:04,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:22:04,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-02-06 14:22:04,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2025-02-06 14:22:04,087 INFO L87 Difference]: Start difference. First operand 936 states and 981 transitions. Second operand has 96 states, 95 states have (on average 18.589473684210525) internal successors, (1766), 96 states have internal predecessors, (1766), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92)