./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 dcebefc76bde79b9a5fa67feebc75881761b0a4209b78516b385f787f62f9340 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:38:05,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:38:05,253 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:38:05,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:38:05,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:38:05,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:38:05,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:38:05,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:38:05,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:38:05,282 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:38:05,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:38:05,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:38:05,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:38:05,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:38:05,283 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:38:05,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:38:05,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:38:05,284 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:38:05,285 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:38:05,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:38:05,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:38:05,285 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/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 -> dcebefc76bde79b9a5fa67feebc75881761b0a4209b78516b385f787f62f9340 [2025-03-17 15:38:05,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:38:05,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:38:05,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:38:05,493 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:38:05,493 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:38:05,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c [2025-03-17 15:38:06,611 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d51d2ffd/35bac9dd3993428d8f3cec6c8346e42a/FLAGfcad7d133 [2025-03-17 15:38:06,789 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:38:06,789 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound50.c [2025-03-17 15:38:06,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d51d2ffd/35bac9dd3993428d8f3cec6c8346e42a/FLAGfcad7d133 [2025-03-17 15:38:06,823 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d51d2ffd/35bac9dd3993428d8f3cec6c8346e42a [2025-03-17 15:38:06,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:38:06,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:38:06,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:38:06,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:38:06,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:38:06,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be0aefe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06, skipping insertion in model container [2025-03-17 15:38:06,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:38:06,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:38:06,937 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:38:06,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:38:06,955 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:38:06,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06 WrapperNode [2025-03-17 15:38:06,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:38:06,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:38:06,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:38:06,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:38:06,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,974 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 101 [2025-03-17 15:38:06,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:38:06,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:38:06,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:38:06,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:38:06,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,981 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,988 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]. [2025-03-17 15:38:06,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,990 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:38:06,993 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:38:06,993 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:38:06,993 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:38:06,994 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (1/1) ... [2025-03-17 15:38:06,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:38:07,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:38:07,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 15:38:07,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 15:38:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:38:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:38:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:38:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:38:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:38:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:38:07,065 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:38:07,067 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:38:07,418 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2025-03-17 15:38:07,419 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:38:07,431 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:38:07,431 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:38:07,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:38:07 BoogieIcfgContainer [2025-03-17 15:38:07,432 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:38:07,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:38:07,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:38:07,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:38:07,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:38:06" (1/3) ... [2025-03-17 15:38:07,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a025177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:38:07, skipping insertion in model container [2025-03-17 15:38:07,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:38:06" (2/3) ... [2025-03-17 15:38:07,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a025177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:38:07, skipping insertion in model container [2025-03-17 15:38:07,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:38:07" (3/3) ... [2025-03-17 15:38:07,441 INFO L128 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound50.c [2025-03-17 15:38:07,453 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:38:07,454 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps4-ll_valuebound50.c that has 2 procedures, 134 locations, 1 initial locations, 1 loop locations, and 60 error locations. [2025-03-17 15:38:07,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:38:07,507 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;@3d72cf8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:38:07,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2025-03-17 15:38:07,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 69 states have (on average 1.9275362318840579) internal successors, (133), 129 states have internal predecessors, (133), 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) [2025-03-17 15:38:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 15:38:07,514 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:07,514 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 15:38:07,515 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:07,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:07,519 INFO L85 PathProgramCache]: Analyzing trace with hash 4923421, now seen corresponding path program 1 times [2025-03-17 15:38:07,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:07,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351420115] [2025-03-17 15:38:07,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:07,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:07,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 15:38:07,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 15:38:07,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:07,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:07,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:07,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351420115] [2025-03-17 15:38:07,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351420115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:38:07,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:38:07,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:38:07,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347585063] [2025-03-17 15:38:07,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:38:07,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 15:38:07,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:07,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 15:38:07,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:38:07,638 INFO L87 Difference]: Start difference. First operand has 134 states, 69 states have (on average 1.9275362318840579) internal successors, (133), 129 states have internal predecessors, (133), 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-03-17 15:38:07,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:07,655 INFO L93 Difference]: Finished difference Result 256 states and 278 transitions. [2025-03-17 15:38:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 15:38:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2025-03-17 15:38:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:07,660 INFO L225 Difference]: With dead ends: 256 [2025-03-17 15:38:07,660 INFO L226 Difference]: Without dead ends: 120 [2025-03-17 15:38:07,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:38:07,663 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:07,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:38:07,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-17 15:38:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-03-17 15:38:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 67 states have (on average 1.7462686567164178) internal successors, (117), 116 states have internal predecessors, (117), 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) [2025-03-17 15:38:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 121 transitions. [2025-03-17 15:38:07,691 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 121 transitions. Word has length 4 [2025-03-17 15:38:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:07,691 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 121 transitions. [2025-03-17 15:38:07,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2025-03-17 15:38:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 121 transitions. [2025-03-17 15:38:07,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 15:38:07,693 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:07,693 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 15:38:07,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:38:07,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:07,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash 4924382, now seen corresponding path program 1 times [2025-03-17 15:38:07,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:07,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097345353] [2025-03-17 15:38:07,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:07,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:07,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 15:38:07,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 15:38:07,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:07,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:07,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:07,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:07,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097345353] [2025-03-17 15:38:07,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097345353] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:38:07,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:38:07,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:38:07,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069898438] [2025-03-17 15:38:07,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:38:07,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:38:07,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:07,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:38:07,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:38:07,747 INFO L87 Difference]: Start difference. First operand 120 states and 121 transitions. Second operand has 3 states, 2 states have (on average 2.0) 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) [2025-03-17 15:38:07,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:07,872 INFO L93 Difference]: Finished difference Result 225 states and 236 transitions. [2025-03-17 15:38:07,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:38:07,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) 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 [2025-03-17 15:38:07,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:07,874 INFO L225 Difference]: With dead ends: 225 [2025-03-17 15:38:07,874 INFO L226 Difference]: Without dead ends: 214 [2025-03-17 15:38:07,874 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 [2025-03-17 15:38:07,877 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 92 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:07,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 180 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:38:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2025-03-17 15:38:07,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 172. [2025-03-17 15:38:07,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 117 states have (on average 1.6923076923076923) internal successors, (198), 166 states have internal predecessors, (198), 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) [2025-03-17 15:38:07,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2025-03-17 15:38:07,888 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 4 [2025-03-17 15:38:07,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:07,889 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2025-03-17 15:38:07,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) 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) [2025-03-17 15:38:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2025-03-17 15:38:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 15:38:07,889 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:07,889 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:07,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:38:07,889 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:07,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:07,890 INFO L85 PathProgramCache]: Analyzing trace with hash 673467388, now seen corresponding path program 1 times [2025-03-17 15:38:07,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:07,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376762769] [2025-03-17 15:38:07,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:07,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:07,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 15:38:07,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 15:38:07,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:07,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:38:07,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200994969] [2025-03-17 15:38:07,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:07,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:38:07,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:38:07,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:38:07,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:38:07,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 15:38:07,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 15:38:07,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:07,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:07,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:38:07,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:38:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:07,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:38:07,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:07,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376762769] [2025-03-17 15:38:07,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:38:07,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200994969] [2025-03-17 15:38:07,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200994969] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:38:07,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:38:07,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:38:07,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632714777] [2025-03-17 15:38:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:38:07,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:38:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:07,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:38:07,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:38:07,954 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 15:38:08,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:08,162 INFO L93 Difference]: Finished difference Result 205 states and 214 transitions. [2025-03-17 15:38:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:38:08,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2025-03-17 15:38:08,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:08,165 INFO L225 Difference]: With dead ends: 205 [2025-03-17 15:38:08,166 INFO L226 Difference]: Without dead ends: 178 [2025-03-17 15:38:08,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:38:08,167 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 52 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:08,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 91 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:38:08,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2025-03-17 15:38:08,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176. [2025-03-17 15:38:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 121 states have (on average 1.4793388429752066) internal successors, (179), 170 states have internal predecessors, (179), 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) [2025-03-17 15:38:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 187 transitions. [2025-03-17 15:38:08,181 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 187 transitions. Word has length 7 [2025-03-17 15:38:08,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:08,181 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 187 transitions. [2025-03-17 15:38:08,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2025-03-17 15:38:08,181 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 187 transitions. [2025-03-17 15:38:08,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 15:38:08,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:08,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:08,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 15:38:08,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:38:08,382 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:08,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:08,383 INFO L85 PathProgramCache]: Analyzing trace with hash -54844458, now seen corresponding path program 1 times [2025-03-17 15:38:08,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:08,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610798395] [2025-03-17 15:38:08,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:08,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:08,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 15:38:08,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 15:38:08,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:08,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:08,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:08,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610798395] [2025-03-17 15:38:08,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610798395] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:38:08,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:38:08,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:38:08,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370269670] [2025-03-17 15:38:08,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:38:08,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:38:08,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:08,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:38:08,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:38:08,438 INFO L87 Difference]: Start difference. First operand 176 states and 187 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) [2025-03-17 15:38:08,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:08,549 INFO L93 Difference]: Finished difference Result 193 states and 198 transitions. [2025-03-17 15:38:08,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:38:08,549 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 [2025-03-17 15:38:08,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:08,550 INFO L225 Difference]: With dead ends: 193 [2025-03-17 15:38:08,550 INFO L226 Difference]: Without dead ends: 159 [2025-03-17 15:38:08,550 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 [2025-03-17 15:38:08,551 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 110 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:08,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 151 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:38:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2025-03-17 15:38:08,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 148. [2025-03-17 15:38:08,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 94 states have (on average 1.553191489361702) internal successors, (146), 143 states have internal predecessors, (146), 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) [2025-03-17 15:38:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2025-03-17 15:38:08,556 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 12 [2025-03-17 15:38:08,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:08,556 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2025-03-17 15:38:08,556 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) [2025-03-17 15:38:08,556 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2025-03-17 15:38:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 15:38:08,557 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:08,557 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, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:08,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:38:08,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:08,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:08,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1843410022, now seen corresponding path program 1 times [2025-03-17 15:38:08,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:08,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990170827] [2025-03-17 15:38:08,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:08,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:08,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 15:38:08,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:38:08,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:08,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:08,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:08,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990170827] [2025-03-17 15:38:08,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990170827] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:38:08,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:38:08,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:38:08,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922776679] [2025-03-17 15:38:08,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:38:08,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:38:08,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:08,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:38:08,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:38:08,640 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-03-17 15:38:08,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:08,652 INFO L93 Difference]: Finished difference Result 150 states and 152 transitions. [2025-03-17 15:38:08,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:38:08,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 32 [2025-03-17 15:38:08,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:08,655 INFO L225 Difference]: With dead ends: 150 [2025-03-17 15:38:08,655 INFO L226 Difference]: Without dead ends: 148 [2025-03-17 15:38:08,655 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 [2025-03-17 15:38:08,656 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 231 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 [2025-03-17 15:38:08,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 231 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:38:08,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-03-17 15:38:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2025-03-17 15:38:08,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 94 states have (on average 1.5319148936170213) internal successors, (144), 143 states have internal predecessors, (144), 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) [2025-03-17 15:38:08,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 150 transitions. [2025-03-17 15:38:08,666 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 150 transitions. Word has length 32 [2025-03-17 15:38:08,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:08,666 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 150 transitions. [2025-03-17 15:38:08,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2025-03-17 15:38:08,666 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 150 transitions. [2025-03-17 15:38:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-17 15:38:08,667 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:08,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:08,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 15:38:08,667 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:08,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:08,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1430460477, now seen corresponding path program 1 times [2025-03-17 15:38:08,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:08,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717610554] [2025-03-17 15:38:08,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:08,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:08,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 15:38:08,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 15:38:08,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:08,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:38:08,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084024500] [2025-03-17 15:38:08,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:08,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:38:08,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:38:08,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:38:08,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:38:08,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 15:38:08,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 15:38:08,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:08,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:08,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:38:08,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:38:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:08,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:38:08,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:08,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717610554] [2025-03-17 15:38:08,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:38:08,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084024500] [2025-03-17 15:38:08,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084024500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:38:08,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:38:08,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:38:08,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928912941] [2025-03-17 15:38:08,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:38:08,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:38:08,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:08,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:38:08,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:38:08,789 INFO L87 Difference]: Start difference. First operand 148 states and 150 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2025-03-17 15:38:08,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:08,996 INFO L93 Difference]: Finished difference Result 243 states and 265 transitions. [2025-03-17 15:38:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:38:08,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 37 [2025-03-17 15:38:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:08,998 INFO L225 Difference]: With dead ends: 243 [2025-03-17 15:38:08,998 INFO L226 Difference]: Without dead ends: 217 [2025-03-17 15:38:08,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:38:09,000 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 65 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:09,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 100 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:38:09,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2025-03-17 15:38:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 209. [2025-03-17 15:38:09,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 153 states have (on average 1.477124183006536) internal successors, (226), 202 states have internal predecessors, (226), 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) [2025-03-17 15:38:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 236 transitions. [2025-03-17 15:38:09,011 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 236 transitions. Word has length 37 [2025-03-17 15:38:09,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:09,011 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 236 transitions. [2025-03-17 15:38:09,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2025-03-17 15:38:09,011 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 236 transitions. [2025-03-17 15:38:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-17 15:38:09,011 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:09,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:09,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 15:38:09,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-17 15:38:09,212 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:09,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:09,213 INFO L85 PathProgramCache]: Analyzing trace with hash -182524706, now seen corresponding path program 1 times [2025-03-17 15:38:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:09,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576355653] [2025-03-17 15:38:09,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:09,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:09,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-17 15:38:09,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 15:38:09,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:09,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:09,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:09,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576355653] [2025-03-17 15:38:09,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576355653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:38:09,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:38:09,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:38:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773173639] [2025-03-17 15:38:09,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:38:09,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:38:09,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:09,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:38:09,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:38:09,322 INFO L87 Difference]: Start difference. First operand 209 states and 236 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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) [2025-03-17 15:38:09,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:09,514 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2025-03-17 15:38:09,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:38:09,515 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), 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 40 [2025-03-17 15:38:09,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:09,516 INFO L225 Difference]: With dead ends: 210 [2025-03-17 15:38:09,516 INFO L226 Difference]: Without dead ends: 209 [2025-03-17 15:38:09,516 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 [2025-03-17 15:38:09,516 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 29 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:09,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 188 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:38:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-03-17 15:38:09,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2025-03-17 15:38:09,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 153 states have (on average 1.4705882352941178) internal successors, (225), 202 states have internal predecessors, (225), 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) [2025-03-17 15:38:09,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2025-03-17 15:38:09,522 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 40 [2025-03-17 15:38:09,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:09,522 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2025-03-17 15:38:09,522 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), 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) [2025-03-17 15:38:09,523 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2025-03-17 15:38:09,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-17 15:38:09,523 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:09,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:09,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 15:38:09,523 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:09,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:09,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1363298561, now seen corresponding path program 1 times [2025-03-17 15:38:09,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:09,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834907270] [2025-03-17 15:38:09,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:09,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:09,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 15:38:09,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 15:38:09,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:09,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:09,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:09,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834907270] [2025-03-17 15:38:09,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834907270] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:38:09,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:38:09,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:38:09,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193894811] [2025-03-17 15:38:09,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:38:09,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:38:09,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:09,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:38:09,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:38:09,585 INFO L87 Difference]: Start difference. First operand 209 states and 235 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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) [2025-03-17 15:38:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:09,713 INFO L93 Difference]: Finished difference Result 210 states and 235 transitions. [2025-03-17 15:38:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:38:09,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 41 [2025-03-17 15:38:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:09,714 INFO L225 Difference]: With dead ends: 210 [2025-03-17 15:38:09,714 INFO L226 Difference]: Without dead ends: 209 [2025-03-17 15:38:09,714 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 [2025-03-17 15:38:09,714 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 26 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:09,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 193 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:38:09,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-03-17 15:38:09,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2025-03-17 15:38:09,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 153 states have (on average 1.4640522875816993) internal successors, (224), 202 states have internal predecessors, (224), 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) [2025-03-17 15:38:09,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 234 transitions. [2025-03-17 15:38:09,719 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 234 transitions. Word has length 41 [2025-03-17 15:38:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:09,719 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 234 transitions. [2025-03-17 15:38:09,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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) [2025-03-17 15:38:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 234 transitions. [2025-03-17 15:38:09,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-17 15:38:09,720 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:09,720 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:09,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 15:38:09,720 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:09,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:09,720 INFO L85 PathProgramCache]: Analyzing trace with hash 687417663, now seen corresponding path program 1 times [2025-03-17 15:38:09,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:09,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329458777] [2025-03-17 15:38:09,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:09,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:09,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:38:09,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:38:09,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:09,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:38:09,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104631882] [2025-03-17 15:38:09,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:09,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:38:09,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:38:09,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:38:09,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:38:09,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:38:09,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:38:09,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:09,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:09,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:38:09,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:38:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:09,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:38:10,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:10,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329458777] [2025-03-17 15:38:10,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:38:10,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104631882] [2025-03-17 15:38:10,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104631882] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:38:10,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:38:10,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:38:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617622197] [2025-03-17 15:38:10,023 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:38:10,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:38:10,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:10,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:38:10,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:38:10,024 INFO L87 Difference]: Start difference. First operand 209 states and 234 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2025-03-17 15:38:10,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:10,286 INFO L93 Difference]: Finished difference Result 209 states and 234 transitions. [2025-03-17 15:38:10,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:38:10,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 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 42 [2025-03-17 15:38:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:10,287 INFO L225 Difference]: With dead ends: 209 [2025-03-17 15:38:10,287 INFO L226 Difference]: Without dead ends: 198 [2025-03-17 15:38:10,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:38:10,288 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 140 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:10,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 48 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:38:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2025-03-17 15:38:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2025-03-17 15:38:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 153 states have (on average 1.3790849673202614) internal successors, (211), 191 states have internal predecessors, (211), 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) [2025-03-17 15:38:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 221 transitions. [2025-03-17 15:38:10,293 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 221 transitions. Word has length 42 [2025-03-17 15:38:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:10,293 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 221 transitions. [2025-03-17 15:38:10,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 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) [2025-03-17 15:38:10,294 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 221 transitions. [2025-03-17 15:38:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 15:38:10,294 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:10,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:10,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 15:38:10,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:38:10,495 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:10,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:10,495 INFO L85 PathProgramCache]: Analyzing trace with hash -164888835, now seen corresponding path program 1 times [2025-03-17 15:38:10,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:10,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460660958] [2025-03-17 15:38:10,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:10,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:10,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:38:10,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:38:10,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:10,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:38:10,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051941992] [2025-03-17 15:38:10,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:10,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:38:10,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:38:10,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:38:10,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:38:10,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:38:10,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:38:10,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:10,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:10,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:38:10,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:38:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:10,639 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:38:10,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:10,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:10,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460660958] [2025-03-17 15:38:10,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:38:10,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051941992] [2025-03-17 15:38:10,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051941992] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:38:10,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:38:10,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-17 15:38:10,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378280961] [2025-03-17 15:38:10,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:38:10,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:38:10,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:10,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:38:10,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:38:10,728 INFO L87 Difference]: Start difference. First operand 198 states and 221 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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) [2025-03-17 15:38:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:38:11,095 INFO L93 Difference]: Finished difference Result 218 states and 236 transitions. [2025-03-17 15:38:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:38:11,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 43 [2025-03-17 15:38:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:38:11,096 INFO L225 Difference]: With dead ends: 218 [2025-03-17 15:38:11,096 INFO L226 Difference]: Without dead ends: 206 [2025-03-17 15:38:11,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:38:11,097 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 179 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:38:11,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 142 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:38:11,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-03-17 15:38:11,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 198. [2025-03-17 15:38:11,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 160 states have (on average 1.28125) internal successors, (205), 191 states have internal predecessors, (205), 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) [2025-03-17 15:38:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 215 transitions. [2025-03-17 15:38:11,102 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 215 transitions. Word has length 43 [2025-03-17 15:38:11,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:38:11,102 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 215 transitions. [2025-03-17 15:38:11,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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) [2025-03-17 15:38:11,103 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 215 transitions. [2025-03-17 15:38:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-17 15:38:11,103 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:38:11,103 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:38:11,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 15:38:11,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:38:11,303 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:38:11,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:38:11,304 INFO L85 PathProgramCache]: Analyzing trace with hash 461518903, now seen corresponding path program 1 times [2025-03-17 15:38:11,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:38:11,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667705494] [2025-03-17 15:38:11,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:11,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:38:11,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 15:38:11,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 15:38:11,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:11,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:38:11,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894278022] [2025-03-17 15:38:11,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:38:11,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:38:11,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:38:11,317 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:38:11,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:38:11,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 15:38:11,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 15:38:11,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:38:11,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:38:11,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 15:38:11,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:38:11,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:11,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:38:11,821 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:38:11,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:38:11,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667705494] [2025-03-17 15:38:11,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:38:11,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894278022] [2025-03-17 15:38:11,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894278022] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:38:11,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:38:11,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-17 15:38:11,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032517408] [2025-03-17 15:38:11,822 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:38:11,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:38:11,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:38:11,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:38:11,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:38:11,822 INFO L87 Difference]: Start difference. First operand 198 states and 215 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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) [2025-03-17 15:38:15,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:20,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:24,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:26,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:30,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:34,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:38,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:42,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:46,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:50,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:52,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:56,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:39:00,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:39:04,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:39:04,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:39:04,884 INFO L93 Difference]: Finished difference Result 210 states and 216 transitions. [2025-03-17 15:39:04,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:39:04,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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 50 [2025-03-17 15:39:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:39:04,887 INFO L225 Difference]: With dead ends: 210 [2025-03-17 15:39:04,887 INFO L226 Difference]: Without dead ends: 182 [2025-03-17 15:39:04,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:39:04,888 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 193 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 49 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:39:04,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 86 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 556 Invalid, 12 Unknown, 0 Unchecked, 53.0s Time] [2025-03-17 15:39:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2025-03-17 15:39:04,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2025-03-17 15:39:04,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 140 states have (on average 1.2642857142857142) internal successors, (177), 169 states have internal predecessors, (177), 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) [2025-03-17 15:39:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 185 transitions. [2025-03-17 15:39:04,894 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 185 transitions. Word has length 50 [2025-03-17 15:39:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:39:04,895 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 185 transitions. [2025-03-17 15:39:04,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 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) [2025-03-17 15:39:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 185 transitions. [2025-03-17 15:39:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 15:39:04,899 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:39:04,899 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:39:04,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 15:39:05,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-17 15:39:05,100 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:39:05,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:39:05,100 INFO L85 PathProgramCache]: Analyzing trace with hash 474631751, now seen corresponding path program 1 times [2025-03-17 15:39:05,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:39:05,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857431098] [2025-03-17 15:39:05,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:05,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:39:05,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 15:39:05,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 15:39:05,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:05,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:05,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:39:05,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857431098] [2025-03-17 15:39:05,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857431098] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:39:05,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120358721] [2025-03-17 15:39:05,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:05,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:05,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:39:05,193 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:39:05,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:39:05,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 15:39:05,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 15:39:05,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:05,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:05,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:39:05,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:39:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:05,290 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:39:05,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120358721] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:39:05,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:39:05,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-17 15:39:05,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036741552] [2025-03-17 15:39:05,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:39:05,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:39:05,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:39:05,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:39:05,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:39:05,291 INFO L87 Difference]: Start difference. First operand 175 states and 185 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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) [2025-03-17 15:39:05,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:39:05,306 INFO L93 Difference]: Finished difference Result 175 states and 185 transitions. [2025-03-17 15:39:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:39:05,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 70 [2025-03-17 15:39:05,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:39:05,308 INFO L225 Difference]: With dead ends: 175 [2025-03-17 15:39:05,308 INFO L226 Difference]: Without dead ends: 174 [2025-03-17 15:39:05,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:39:05,309 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 29 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:39:05,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 188 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:39:05,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-03-17 15:39:05,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2025-03-17 15:39:05,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 140 states have (on average 1.25) internal successors, (175), 168 states have internal predecessors, (175), 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) [2025-03-17 15:39:05,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 183 transitions. [2025-03-17 15:39:05,314 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 183 transitions. Word has length 70 [2025-03-17 15:39:05,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:39:05,314 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 183 transitions. [2025-03-17 15:39:05,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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) [2025-03-17 15:39:05,314 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 183 transitions. [2025-03-17 15:39:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 15:39:05,315 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:39:05,315 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:39:05,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 15:39:05,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:05,516 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:39:05,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:39:05,517 INFO L85 PathProgramCache]: Analyzing trace with hash 474631700, now seen corresponding path program 1 times [2025-03-17 15:39:05,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:39:05,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974760659] [2025-03-17 15:39:05,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:05,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:39:05,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 15:39:05,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 15:39:05,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:05,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:39:05,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818810764] [2025-03-17 15:39:05,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:05,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:05,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:39:05,536 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:39:05,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:39:05,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 15:39:05,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 15:39:05,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:05,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:05,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:39:05,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:39:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:05,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:39:05,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:39:05,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974760659] [2025-03-17 15:39:05,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:39:05,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818810764] [2025-03-17 15:39:05,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818810764] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:39:05,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:39:05,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:39:05,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680971622] [2025-03-17 15:39:05,840 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:39:05,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:39:05,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:39:05,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:39:05,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:39:05,841 INFO L87 Difference]: Start difference. First operand 174 states and 183 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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) [2025-03-17 15:39:05,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:39:05,977 INFO L93 Difference]: Finished difference Result 174 states and 183 transitions. [2025-03-17 15:39:05,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:39:05,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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 70 [2025-03-17 15:39:05,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:39:05,978 INFO L225 Difference]: With dead ends: 174 [2025-03-17 15:39:05,979 INFO L226 Difference]: Without dead ends: 173 [2025-03-17 15:39:05,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:39:05,979 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 70 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:39:05,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 37 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:39:05,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-03-17 15:39:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2025-03-17 15:39:05,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 140 states have (on average 1.2357142857142858) internal successors, (173), 167 states have internal predecessors, (173), 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) [2025-03-17 15:39:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 181 transitions. [2025-03-17 15:39:05,984 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 181 transitions. Word has length 70 [2025-03-17 15:39:05,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:39:05,984 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 181 transitions. [2025-03-17 15:39:05,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 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) [2025-03-17 15:39:05,984 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 181 transitions. [2025-03-17 15:39:05,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-17 15:39:05,985 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:39:05,985 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:39:05,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 15:39:06,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:06,185 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:39:06,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:39:06,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1828682438, now seen corresponding path program 1 times [2025-03-17 15:39:06,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:39:06,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908370131] [2025-03-17 15:39:06,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:06,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:39:06,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-17 15:39:06,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 15:39:06,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:06,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:06,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:39:06,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908370131] [2025-03-17 15:39:06,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908370131] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:39:06,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204893602] [2025-03-17 15:39:06,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:06,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:06,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:39:06,250 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:39:06,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:39:06,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-17 15:39:06,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 15:39:06,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:06,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:06,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:39:06,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:39:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:06,340 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:39:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:06,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204893602] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:39:06,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:39:06,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 15:39:06,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465913524] [2025-03-17 15:39:06,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:39:06,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:39:06,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:39:06,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:39:06,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:39:06,403 INFO L87 Difference]: Start difference. First operand 173 states and 181 transitions. Second operand has 7 states, 6 states have (on average 24.833333333333332) internal successors, (149), 7 states have internal predecessors, (149), 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) [2025-03-17 15:39:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:39:06,435 INFO L93 Difference]: Finished difference Result 256 states and 268 transitions. [2025-03-17 15:39:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:39:06,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.833333333333332) internal successors, (149), 7 states have internal predecessors, (149), 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 71 [2025-03-17 15:39:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:39:06,436 INFO L225 Difference]: With dead ends: 256 [2025-03-17 15:39:06,436 INFO L226 Difference]: Without dead ends: 255 [2025-03-17 15:39:06,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:39:06,437 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 32 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:39:06,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 395 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:39:06,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2025-03-17 15:39:06,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 231. [2025-03-17 15:39:06,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 196 states have (on average 1.2908163265306123) internal successors, (253), 223 states have internal predecessors, (253), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:39:06,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 265 transitions. [2025-03-17 15:39:06,443 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 265 transitions. Word has length 71 [2025-03-17 15:39:06,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:39:06,443 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 265 transitions. [2025-03-17 15:39:06,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.833333333333332) internal successors, (149), 7 states have internal predecessors, (149), 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) [2025-03-17 15:39:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 265 transitions. [2025-03-17 15:39:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-17 15:39:06,444 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:39:06,444 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:39:06,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 15:39:06,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 15:39:06,648 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:39:06,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:39:06,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1828680837, now seen corresponding path program 1 times [2025-03-17 15:39:06,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:39:06,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137240947] [2025-03-17 15:39:06,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:06,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:39:06,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-17 15:39:06,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 15:39:06,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:06,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:39:06,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487449905] [2025-03-17 15:39:06,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:06,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:06,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:39:06,663 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:39:06,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:39:06,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-17 15:39:06,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 15:39:06,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:06,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:06,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:39:06,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:39:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:06,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:39:06,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:39:06,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137240947] [2025-03-17 15:39:06,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:39:06,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487449905] [2025-03-17 15:39:06,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487449905] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:39:06,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:39:06,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:39:06,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967039731] [2025-03-17 15:39:06,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:39:06,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:39:06,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:39:06,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:39:06,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:39:06,928 INFO L87 Difference]: Start difference. First operand 231 states and 265 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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) [2025-03-17 15:39:07,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:39:07,117 INFO L93 Difference]: Finished difference Result 233 states and 265 transitions. [2025-03-17 15:39:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:39:07,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 71 [2025-03-17 15:39:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:39:07,119 INFO L225 Difference]: With dead ends: 233 [2025-03-17 15:39:07,119 INFO L226 Difference]: Without dead ends: 230 [2025-03-17 15:39:07,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:39:07,119 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 6 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:39:07,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 106 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:39:07,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2025-03-17 15:39:07,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2025-03-17 15:39:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 195 states have (on average 1.2820512820512822) internal successors, (250), 222 states have internal predecessors, (250), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:39:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 262 transitions. [2025-03-17 15:39:07,127 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 262 transitions. Word has length 71 [2025-03-17 15:39:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:39:07,127 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 262 transitions. [2025-03-17 15:39:07,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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) [2025-03-17 15:39:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 262 transitions. [2025-03-17 15:39:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-17 15:39:07,128 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:39:07,128 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:39:07,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 15:39:07,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 15:39:07,329 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:39:07,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:39:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash 865655376, now seen corresponding path program 1 times [2025-03-17 15:39:07,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:39:07,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531172425] [2025-03-17 15:39:07,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:07,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:39:07,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 15:39:07,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 15:39:07,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:07,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:39:07,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161447603] [2025-03-17 15:39:07,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:07,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:07,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:39:07,342 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:39:07,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:39:07,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 15:39:07,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 15:39:07,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:07,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:07,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:39:07,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:39:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:07,551 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:39:07,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:39:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531172425] [2025-03-17 15:39:07,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:39:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161447603] [2025-03-17 15:39:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161447603] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:39:07,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:39:07,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:39:07,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742888191] [2025-03-17 15:39:07,651 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:39:07,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:39:07,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:39:07,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:39:07,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:39:07,652 INFO L87 Difference]: Start difference. First operand 230 states and 262 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-03-17 15:39:07,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:39:07,840 INFO L93 Difference]: Finished difference Result 231 states and 262 transitions. [2025-03-17 15:39:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:39:07,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 74 [2025-03-17 15:39:07,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:39:07,841 INFO L225 Difference]: With dead ends: 231 [2025-03-17 15:39:07,841 INFO L226 Difference]: Without dead ends: 225 [2025-03-17 15:39:07,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:39:07,842 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 6 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:39:07,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 113 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:39:07,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2025-03-17 15:39:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2025-03-17 15:39:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 217 states have internal predecessors, (244), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:39:07,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 256 transitions. [2025-03-17 15:39:07,848 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 256 transitions. Word has length 74 [2025-03-17 15:39:07,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:39:07,848 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 256 transitions. [2025-03-17 15:39:07,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-03-17 15:39:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 256 transitions. [2025-03-17 15:39:07,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 15:39:07,849 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:39:07,849 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:39:07,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 15:39:08,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 15:39:08,049 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:39:08,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:39:08,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1750281598, now seen corresponding path program 1 times [2025-03-17 15:39:08,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:39:08,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583530536] [2025-03-17 15:39:08,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:08,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:39:08,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 15:39:08,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 15:39:08,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:08,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:39:08,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437860026] [2025-03-17 15:39:08,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:08,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:08,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:39:08,067 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:39:08,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 15:39:08,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 15:39:08,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 15:39:08,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:08,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:08,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:39:08,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:39:08,158 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:08,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:39:08,274 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:39:08,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:39:08,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583530536] [2025-03-17 15:39:08,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:39:08,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437860026] [2025-03-17 15:39:08,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437860026] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:39:08,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:39:08,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-17 15:39:08,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675053879] [2025-03-17 15:39:08,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:39:08,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:39:08,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:39:08,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:39:08,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:39:08,276 INFO L87 Difference]: Start difference. First operand 225 states and 256 transitions. Second operand has 8 states, 7 states have (on average 18.714285714285715) internal successors, (131), 8 states have internal predecessors, (131), 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) [2025-03-17 15:39:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:39:08,585 INFO L93 Difference]: Finished difference Result 261 states and 297 transitions. [2025-03-17 15:39:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:39:08,585 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.714285714285715) internal successors, (131), 8 states have internal predecessors, (131), 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) Word has length 75 [2025-03-17 15:39:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:39:08,587 INFO L225 Difference]: With dead ends: 261 [2025-03-17 15:39:08,587 INFO L226 Difference]: Without dead ends: 244 [2025-03-17 15:39:08,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:39:08,587 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 243 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:39:08,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 119 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:39:08,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-03-17 15:39:08,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 239. [2025-03-17 15:39:08,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 212 states have (on average 1.1650943396226414) internal successors, (247), 230 states have internal predecessors, (247), 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) [2025-03-17 15:39:08,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 261 transitions. [2025-03-17 15:39:08,594 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 261 transitions. Word has length 75 [2025-03-17 15:39:08,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:39:08,594 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 261 transitions. [2025-03-17 15:39:08,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.714285714285715) internal successors, (131), 8 states have internal predecessors, (131), 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) [2025-03-17 15:39:08,595 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 261 transitions. [2025-03-17 15:39:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-17 15:39:08,595 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:39:08,596 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:39:08,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 15:39:08,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-17 15:39:08,796 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2025-03-17 15:39:08,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:39:08,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1434999248, now seen corresponding path program 1 times [2025-03-17 15:39:08,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:39:08,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637601641] [2025-03-17 15:39:08,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:08,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:39:08,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-17 15:39:08,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 15:39:08,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:08,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:39:08,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687963097] [2025-03-17 15:39:08,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:39:08,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:39:08,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:39:08,820 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:39:08,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 15:39:08,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-17 15:39:08,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 15:39:08,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:39:08,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:39:08,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:39:08,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:39:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 68 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:39:09,299 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:39:21,843 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:39:21,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:39:21,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637601641] [2025-03-17 15:39:21,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:39:21,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687963097] [2025-03-17 15:39:21,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687963097] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:39:21,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:39:21,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2025-03-17 15:39:21,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622936342] [2025-03-17 15:39:21,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:39:21,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:39:21,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:39:21,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:39:21,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=161, Unknown=2, NotChecked=0, Total=210 [2025-03-17 15:39:21,845 INFO L87 Difference]: Start difference. First operand 239 states and 261 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:39:26,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-17 15:39:30,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-17 15:39:34,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-17 15:39:38,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-17 15:39:42,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-17 15:39:46,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-17 15:39:50,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1]