./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.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/termination-numeric/Binomial.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 22:09:03,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 22:09:03,250 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-22 22:09:03,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 22:09:03,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 22:09:03,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 22:09:03,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 22:09:03,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 22:09:03,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 22:09:03,283 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 22:09:03,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 22:09:03,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 22:09:03,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 22:09:03,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 22:09:03,285 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 22:09:03,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 22:09:03,288 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 22:09:03,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 22:09:03,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 22:09:03,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 22:09:03,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 22:09:03,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 22:09:03,290 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 22:09:03,290 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 22:09:03,290 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 22:09:03,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 22:09:03,291 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 22:09:03,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 22:09:03,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 22:09:03,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 22:09:03,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 22:09:03,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:09:03,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 22:09:03,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 22:09:03,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 22:09:03,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 22:09:03,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 22:09:03,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 22:09:03,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 22:09:03,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 22:09:03,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 22:09:03,295 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2024-11-22 22:09:03,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 22:09:03,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 22:09:03,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 22:09:03,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 22:09:03,521 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 22:09:03,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Binomial.c [2024-11-22 22:09:04,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 22:09:05,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 22:09:05,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Binomial.c [2024-11-22 22:09:05,023 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/395c14922/a9d31fca249a4ca0b0f8dff40d6af2ce/FLAGc07e5037e [2024-11-22 22:09:05,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/395c14922/a9d31fca249a4ca0b0f8dff40d6af2ce [2024-11-22 22:09:05,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 22:09:05,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 22:09:05,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 22:09:05,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 22:09:05,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 22:09:05,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c51a992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05, skipping insertion in model container [2024-11-22 22:09:05,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,445 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 22:09:05,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:09:05,599 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 22:09:05,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:09:05,627 INFO L204 MainTranslator]: Completed translation [2024-11-22 22:09:05,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05 WrapperNode [2024-11-22 22:09:05,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 22:09:05,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 22:09:05,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 22:09:05,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 22:09:05,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,650 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2024-11-22 22:09:05,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 22:09:05,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 22:09:05,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 22:09:05,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 22:09:05,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,661 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,667 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-22 22:09:05,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 22:09:05,677 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 22:09:05,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 22:09:05,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 22:09:05,678 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (1/1) ... [2024-11-22 22:09:05,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:09:05,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:05,713 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) [2024-11-22 22:09:05,716 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 [2024-11-22 22:09:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2024-11-22 22:09:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2024-11-22 22:09:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure binomialCoefficient [2024-11-22 22:09:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure binomialCoefficient [2024-11-22 22:09:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 22:09:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 22:09:05,828 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 22:09:05,830 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 22:09:06,070 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-11-22 22:09:06,071 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 22:09:06,092 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 22:09:06,092 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 22:09:06,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:09:06 BoogieIcfgContainer [2024-11-22 22:09:06,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 22:09:06,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 22:09:06,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 22:09:06,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 22:09:06,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:09:05" (1/3) ... [2024-11-22 22:09:06,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737d442b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:09:06, skipping insertion in model container [2024-11-22 22:09:06,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:09:05" (2/3) ... [2024-11-22 22:09:06,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@737d442b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:09:06, skipping insertion in model container [2024-11-22 22:09:06,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:09:06" (3/3) ... [2024-11-22 22:09:06,106 INFO L112 eAbstractionObserver]: Analyzing ICFG Binomial.c [2024-11-22 22:09:06,133 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 22:09:06,136 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-22 22:09:06,254 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 22:09:06,262 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;@33aaa123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 22:09:06,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-22 22:09:06,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 38 states have (on average 1.5789473684210527) internal successors, (60), 52 states have internal predecessors, (60), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:09:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-22 22:09:06,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:06,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:06,296 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:06,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:06,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1898283155, now seen corresponding path program 1 times [2024-11-22 22:09:06,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:06,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551739533] [2024-11-22 22:09:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:06,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:09:06,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:06,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551739533] [2024-11-22 22:09:06,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551739533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:06,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:06,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:09:06,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189369830] [2024-11-22 22:09:06,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:06,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 22:09:06,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:06,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 22:09:06,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:09:06,446 INFO L87 Difference]: Start difference. First operand has 61 states, 38 states have (on average 1.5789473684210527) internal successors, (60), 52 states have internal predecessors, (60), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:06,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:06,468 INFO L93 Difference]: Finished difference Result 118 states and 138 transitions. [2024-11-22 22:09:06,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 22:09:06,470 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-22 22:09:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:06,476 INFO L225 Difference]: With dead ends: 118 [2024-11-22 22:09:06,476 INFO L226 Difference]: Without dead ends: 57 [2024-11-22 22:09:06,479 INFO L431 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 [2024-11-22 22:09:06,481 INFO L432 NwaCegarLoop]: 70 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, 70 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 [2024-11-22 22:09:06,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:06,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-22 22:09:06,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-22 22:09:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 35 states have (on average 1.4857142857142858) internal successors, (52), 48 states have internal predecessors, (52), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:09:06,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2024-11-22 22:09:06,513 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 9 [2024-11-22 22:09:06,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:06,514 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2024-11-22 22:09:06,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2024-11-22 22:09:06,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-22 22:09:06,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:06,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:06,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 22:09:06,515 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:06,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1897717126, now seen corresponding path program 1 times [2024-11-22 22:09:06,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:06,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102175339] [2024-11-22 22:09:06,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:06,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:09:06,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:06,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102175339] [2024-11-22 22:09:06,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102175339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:06,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:06,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 22:09:06,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401017210] [2024-11-22 22:09:06,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:06,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:09:06,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:06,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:09:06,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:06,568 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:06,612 INFO L93 Difference]: Finished difference Result 111 states and 126 transitions. [2024-11-22 22:09:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:09:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-22 22:09:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:06,614 INFO L225 Difference]: With dead ends: 111 [2024-11-22 22:09:06,614 INFO L226 Difference]: Without dead ends: 58 [2024-11-22 22:09:06,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:09:06,616 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 24 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:06,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 149 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-22 22:09:06,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-22 22:09:06,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 49 states have internal predecessors, (53), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:09:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2024-11-22 22:09:06,632 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 9 [2024-11-22 22:09:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:06,633 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2024-11-22 22:09:06,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2024-11-22 22:09:06,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 22:09:06,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:06,634 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:06,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 22:09:06,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:06,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:06,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1419301016, now seen corresponding path program 1 times [2024-11-22 22:09:06,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:06,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204182160] [2024-11-22 22:09:06,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:06,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:09:06,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:06,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204182160] [2024-11-22 22:09:06,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204182160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:06,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:06,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:09:06,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653201642] [2024-11-22 22:09:06,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:06,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:09:06,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:06,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:09:06,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:09:06,701 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:06,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:06,721 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2024-11-22 22:09:06,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:09:06,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-22 22:09:06,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:06,722 INFO L225 Difference]: With dead ends: 58 [2024-11-22 22:09:06,723 INFO L226 Difference]: Without dead ends: 57 [2024-11-22 22:09:06,723 INFO L431 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 [2024-11-22 22:09:06,724 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 4 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:06,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 107 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-22 22:09:06,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-22 22:09:06,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 48 states have internal predecessors, (52), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-22 22:09:06,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2024-11-22 22:09:06,730 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 13 [2024-11-22 22:09:06,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:06,730 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2024-11-22 22:09:06,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:06,730 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2024-11-22 22:09:06,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-22 22:09:06,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:06,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:06,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 22:09:06,731 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:06,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:06,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1048658574, now seen corresponding path program 1 times [2024-11-22 22:09:06,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:06,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770310315] [2024-11-22 22:09:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:06,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:06,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:09:06,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770310315] [2024-11-22 22:09:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770310315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:06,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:06,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 22:09:06,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100332496] [2024-11-22 22:09:06,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:06,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 22:09:06,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:06,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 22:09:06,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:09:06,839 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:06,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:06,942 INFO L93 Difference]: Finished difference Result 150 states and 172 transitions. [2024-11-22 22:09:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:09:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-22 22:09:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:06,946 INFO L225 Difference]: With dead ends: 150 [2024-11-22 22:09:06,946 INFO L226 Difference]: Without dead ends: 97 [2024-11-22 22:09:06,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:09:06,947 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 44 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:06,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 335 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:06,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-22 22:09:06,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2024-11-22 22:09:06,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 71 states have internal predecessors, (85), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-22 22:09:06,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 107 transitions. [2024-11-22 22:09:06,961 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 107 transitions. Word has length 14 [2024-11-22 22:09:06,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:06,961 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 107 transitions. [2024-11-22 22:09:06,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:06,962 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 107 transitions. [2024-11-22 22:09:06,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-22 22:09:06,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:06,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:06,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 22:09:06,962 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:06,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:06,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1204972684, now seen corresponding path program 1 times [2024-11-22 22:09:06,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:06,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152826666] [2024-11-22 22:09:06,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:06,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:09:06,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:06,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152826666] [2024-11-22 22:09:06,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152826666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:06,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:06,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 22:09:06,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423403131] [2024-11-22 22:09:06,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:06,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:09:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:09:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:06,997 INFO L87 Difference]: Start difference. First operand 87 states and 107 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:07,045 INFO L93 Difference]: Finished difference Result 175 states and 214 transitions. [2024-11-22 22:09:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:09:07,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-22 22:09:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:07,047 INFO L225 Difference]: With dead ends: 175 [2024-11-22 22:09:07,047 INFO L226 Difference]: Without dead ends: 94 [2024-11-22 22:09:07,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:09:07,049 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 19 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:07,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 163 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-22 22:09:07,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2024-11-22 22:09:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 72 states have internal predecessors, (86), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-22 22:09:07,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2024-11-22 22:09:07,057 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 14 [2024-11-22 22:09:07,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:07,058 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2024-11-22 22:09:07,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:09:07,058 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2024-11-22 22:09:07,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 22:09:07,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:07,059 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:07,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 22:09:07,059 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:07,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:07,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1152590759, now seen corresponding path program 1 times [2024-11-22 22:09:07,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:07,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505747202] [2024-11-22 22:09:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:07,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:09:07,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:07,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505747202] [2024-11-22 22:09:07,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505747202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:07,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:07,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 22:09:07,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893558145] [2024-11-22 22:09:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:07,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 22:09:07,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:07,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 22:09:07,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:09:07,153 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:09:07,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:07,239 INFO L93 Difference]: Finished difference Result 218 states and 276 transitions. [2024-11-22 22:09:07,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:09:07,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-22 22:09:07,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:07,241 INFO L225 Difference]: With dead ends: 218 [2024-11-22 22:09:07,241 INFO L226 Difference]: Without dead ends: 137 [2024-11-22 22:09:07,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:09:07,243 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 36 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:07,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 322 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:07,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-22 22:09:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2024-11-22 22:09:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 100 states have internal predecessors, (125), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 22:09:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2024-11-22 22:09:07,253 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 20 [2024-11-22 22:09:07,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:07,253 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2024-11-22 22:09:07,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:09:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2024-11-22 22:09:07,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-22 22:09:07,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:07,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:07,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 22:09:07,254 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting binomialCoefficientErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:07,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:07,254 INFO L85 PathProgramCache]: Analyzing trace with hash 461279503, now seen corresponding path program 1 times [2024-11-22 22:09:07,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:07,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006059966] [2024-11-22 22:09:07,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:07,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:09:07,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:07,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006059966] [2024-11-22 22:09:07,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006059966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:07,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:07,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 22:09:07,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841467983] [2024-11-22 22:09:07,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:07,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:09:07,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:07,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:09:07,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:09:07,314 INFO L87 Difference]: Start difference. First operand 125 states and 163 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:09:07,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:07,395 INFO L93 Difference]: Finished difference Result 152 states and 190 transitions. [2024-11-22 22:09:07,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:09:07,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-22 22:09:07,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:07,399 INFO L225 Difference]: With dead ends: 152 [2024-11-22 22:09:07,399 INFO L226 Difference]: Without dead ends: 151 [2024-11-22 22:09:07,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:09:07,400 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 46 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:07,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 259 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:07,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-22 22:09:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-11-22 22:09:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 97 states have (on average 1.422680412371134) internal successors, (138), 111 states have internal predecessors, (138), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 22:09:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 182 transitions. [2024-11-22 22:09:07,415 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 182 transitions. Word has length 22 [2024-11-22 22:09:07,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:07,415 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 182 transitions. [2024-11-22 22:09:07,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:09:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 182 transitions. [2024-11-22 22:09:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-22 22:09:07,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:07,416 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:07,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 22:09:07,416 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:07,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:07,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1414762759, now seen corresponding path program 1 times [2024-11-22 22:09:07,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:07,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818553139] [2024-11-22 22:09:07,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:07,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:07,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:09:07,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:07,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818553139] [2024-11-22 22:09:07,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818553139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:07,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:07,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 22:09:07,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726172405] [2024-11-22 22:09:07,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:07,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:09:07,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:07,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:09:07,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:09:07,471 INFO L87 Difference]: Start difference. First operand 140 states and 182 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:09:07,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:07,569 INFO L93 Difference]: Finished difference Result 152 states and 187 transitions. [2024-11-22 22:09:07,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:09:07,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-22 22:09:07,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:07,570 INFO L225 Difference]: With dead ends: 152 [2024-11-22 22:09:07,570 INFO L226 Difference]: Without dead ends: 151 [2024-11-22 22:09:07,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:09:07,571 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 46 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:07,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 256 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-22 22:09:07,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-11-22 22:09:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 111 states have internal predecessors, (137), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 22:09:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 181 transitions. [2024-11-22 22:09:07,585 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 181 transitions. Word has length 23 [2024-11-22 22:09:07,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:07,586 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 181 transitions. [2024-11-22 22:09:07,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:09:07,586 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 181 transitions. [2024-11-22 22:09:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-22 22:09:07,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:07,587 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:07,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 22:09:07,587 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:07,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:07,587 INFO L85 PathProgramCache]: Analyzing trace with hash -376350556, now seen corresponding path program 1 times [2024-11-22 22:09:07,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:07,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690316682] [2024-11-22 22:09:07,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:07,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:07,676 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 22:09:07,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:07,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690316682] [2024-11-22 22:09:07,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690316682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:07,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:07,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 22:09:07,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97206317] [2024-11-22 22:09:07,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:07,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 22:09:07,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:07,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 22:09:07,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:09:07,679 INFO L87 Difference]: Start difference. First operand 140 states and 181 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:09:07,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:07,867 INFO L93 Difference]: Finished difference Result 279 states and 353 transitions. [2024-11-22 22:09:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 22:09:07,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-22 22:09:07,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:07,872 INFO L225 Difference]: With dead ends: 279 [2024-11-22 22:09:07,873 INFO L226 Difference]: Without dead ends: 155 [2024-11-22 22:09:07,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:09:07,873 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 47 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:07,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 357 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:09:07,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-22 22:09:07,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 144. [2024-11-22 22:09:07,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 100 states have (on average 1.4) internal successors, (140), 114 states have internal predecessors, (140), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 22:09:07,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 184 transitions. [2024-11-22 22:09:07,894 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 184 transitions. Word has length 28 [2024-11-22 22:09:07,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:07,898 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 184 transitions. [2024-11-22 22:09:07,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 22:09:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 184 transitions. [2024-11-22 22:09:07,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-22 22:09:07,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:07,899 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:07,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 22:09:07,899 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:07,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:07,900 INFO L85 PathProgramCache]: Analyzing trace with hash -896192804, now seen corresponding path program 1 times [2024-11-22 22:09:07,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:07,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98113807] [2024-11-22 22:09:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:07,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:07,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39998554] [2024-11-22 22:09:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:07,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:07,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:07,912 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) [2024-11-22 22:09:07,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 22:09:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:07,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:09:07,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 22:09:08,058 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:09:08,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:08,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98113807] [2024-11-22 22:09:08,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:08,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39998554] [2024-11-22 22:09:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39998554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:08,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:08,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 22:09:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050711477] [2024-11-22 22:09:08,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:08,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 22:09:08,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:08,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 22:09:08,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:09:08,060 INFO L87 Difference]: Start difference. First operand 144 states and 184 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:09:08,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:08,137 INFO L93 Difference]: Finished difference Result 196 states and 281 transitions. [2024-11-22 22:09:08,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:09:08,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-11-22 22:09:08,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:08,139 INFO L225 Difference]: With dead ends: 196 [2024-11-22 22:09:08,139 INFO L226 Difference]: Without dead ends: 195 [2024-11-22 22:09:08,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:09:08,140 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 12 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:08,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 162 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:08,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-22 22:09:08,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 166. [2024-11-22 22:09:08,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 118 states have (on average 1.3644067796610169) internal successors, (161), 129 states have internal predecessors, (161), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2024-11-22 22:09:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 225 transitions. [2024-11-22 22:09:08,173 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 225 transitions. Word has length 30 [2024-11-22 22:09:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:08,175 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 225 transitions. [2024-11-22 22:09:08,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:09:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 225 transitions. [2024-11-22 22:09:08,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-22 22:09:08,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:08,176 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:08,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 22:09:08,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 22:09:08,377 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:08,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:08,377 INFO L85 PathProgramCache]: Analyzing trace with hash -2012173088, now seen corresponding path program 1 times [2024-11-22 22:09:08,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:08,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607517723] [2024-11-22 22:09:08,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:08,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:08,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1736357556] [2024-11-22 22:09:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:08,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:08,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:08,398 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) [2024-11-22 22:09:08,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 22:09:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:08,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 22:09:08,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 22:09:08,489 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:09:08,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:08,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607517723] [2024-11-22 22:09:08,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:08,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736357556] [2024-11-22 22:09:08,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736357556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:08,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:08,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 22:09:08,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731957382] [2024-11-22 22:09:08,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:08,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:09:08,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:09:08,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:09:08,491 INFO L87 Difference]: Start difference. First operand 166 states and 225 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:09:08,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:08,527 INFO L93 Difference]: Finished difference Result 196 states and 276 transitions. [2024-11-22 22:09:08,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 22:09:08,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-22 22:09:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:08,528 INFO L225 Difference]: With dead ends: 196 [2024-11-22 22:09:08,529 INFO L226 Difference]: Without dead ends: 195 [2024-11-22 22:09:08,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:09:08,529 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 10 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:08,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 162 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:08,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-22 22:09:08,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 170. [2024-11-22 22:09:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 122 states have (on average 1.3442622950819672) internal successors, (164), 133 states have internal predecessors, (164), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2024-11-22 22:09:08,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 228 transitions. [2024-11-22 22:09:08,539 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 228 transitions. Word has length 31 [2024-11-22 22:09:08,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:08,539 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 228 transitions. [2024-11-22 22:09:08,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 22:09:08,539 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 228 transitions. [2024-11-22 22:09:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 22:09:08,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:08,540 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:08,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 22:09:08,744 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,SelfDestructingSolverStorable10 [2024-11-22 22:09:08,745 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:08,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2047143774, now seen corresponding path program 1 times [2024-11-22 22:09:08,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:08,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440133498] [2024-11-22 22:09:08,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:08,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:08,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327391216] [2024-11-22 22:09:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:08,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:08,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:08,760 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) [2024-11-22 22:09:08,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 22:09:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:08,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:09:08,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:08,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:08,859 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:09:08,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:08,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440133498] [2024-11-22 22:09:08,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:08,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327391216] [2024-11-22 22:09:08,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327391216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:08,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:08,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 22:09:08,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930229821] [2024-11-22 22:09:08,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:08,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 22:09:08,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:08,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 22:09:08,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:09:08,861 INFO L87 Difference]: Start difference. First operand 170 states and 228 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:09:08,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:08,916 INFO L93 Difference]: Finished difference Result 250 states and 355 transitions. [2024-11-22 22:09:08,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:09:08,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2024-11-22 22:09:08,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:08,918 INFO L225 Difference]: With dead ends: 250 [2024-11-22 22:09:08,918 INFO L226 Difference]: Without dead ends: 249 [2024-11-22 22:09:08,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:09:08,919 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 26 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:08,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 220 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:08,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-22 22:09:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 201. [2024-11-22 22:09:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 147 states have (on average 1.3061224489795917) internal successors, (192), 155 states have internal predecessors, (192), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2024-11-22 22:09:08,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 273 transitions. [2024-11-22 22:09:08,929 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 273 transitions. Word has length 32 [2024-11-22 22:09:08,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:08,929 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 273 transitions. [2024-11-22 22:09:08,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:09:08,929 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 273 transitions. [2024-11-22 22:09:08,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 22:09:08,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:08,930 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:08,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 22:09:09,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:09,131 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting binomialCoefficientErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:09,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:09,131 INFO L85 PathProgramCache]: Analyzing trace with hash -963052382, now seen corresponding path program 1 times [2024-11-22 22:09:09,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:09,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259738943] [2024-11-22 22:09:09,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:09,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:09,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005181659] [2024-11-22 22:09:09,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:09,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:09,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:09,165 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) [2024-11-22 22:09:09,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 22:09:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:09,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 22:09:09,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 22:09:09,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:10,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259738943] [2024-11-22 22:09:10,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:10,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005181659] [2024-11-22 22:09:10,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005181659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:10,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:09:10,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-22 22:09:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100605522] [2024-11-22 22:09:10,093 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:10,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 22:09:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 22:09:10,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:09:10,094 INFO L87 Difference]: Start difference. First operand 201 states and 273 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:09:10,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:10,151 INFO L93 Difference]: Finished difference Result 250 states and 350 transitions. [2024-11-22 22:09:10,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 22:09:10,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2024-11-22 22:09:10,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:10,153 INFO L225 Difference]: With dead ends: 250 [2024-11-22 22:09:10,153 INFO L226 Difference]: Without dead ends: 249 [2024-11-22 22:09:10,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:09:10,153 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 25 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:10,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 173 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:10,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-22 22:09:10,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 205. [2024-11-22 22:09:10,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 151 states have (on average 1.2913907284768211) internal successors, (195), 159 states have internal predecessors, (195), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2024-11-22 22:09:10,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 276 transitions. [2024-11-22 22:09:10,163 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 276 transitions. Word has length 33 [2024-11-22 22:09:10,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:10,164 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 276 transitions. [2024-11-22 22:09:10,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 22:09:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 276 transitions. [2024-11-22 22:09:10,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 22:09:10,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:10,164 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-22 22:09:10,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 22:09:10,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:10,365 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:10,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:10,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1243028580, now seen corresponding path program 1 times [2024-11-22 22:09:10,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:10,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12653878] [2024-11-22 22:09:10,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:10,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:10,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:10,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12653878] [2024-11-22 22:09:10,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12653878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:10,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:10,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:09:10,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452347397] [2024-11-22 22:09:10,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:10,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:09:10,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:10,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:09:10,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:10,398 INFO L87 Difference]: Start difference. First operand 205 states and 276 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:09:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:10,416 INFO L93 Difference]: Finished difference Result 205 states and 276 transitions. [2024-11-22 22:09:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:09:10,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-11-22 22:09:10,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:10,418 INFO L225 Difference]: With dead ends: 205 [2024-11-22 22:09:10,418 INFO L226 Difference]: Without dead ends: 204 [2024-11-22 22:09:10,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:10,419 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 3 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:10,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 154 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-22 22:09:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-11-22 22:09:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 151 states have (on average 1.2781456953642385) internal successors, (193), 158 states have internal predecessors, (193), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2024-11-22 22:09:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 274 transitions. [2024-11-22 22:09:10,428 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 274 transitions. Word has length 38 [2024-11-22 22:09:10,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:10,428 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 274 transitions. [2024-11-22 22:09:10,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:09:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 274 transitions. [2024-11-22 22:09:10,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 22:09:10,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:10,429 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-22 22:09:10,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 22:09:10,429 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:10,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:10,430 INFO L85 PathProgramCache]: Analyzing trace with hash 120819793, now seen corresponding path program 1 times [2024-11-22 22:09:10,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:10,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437978325] [2024-11-22 22:09:10,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:10,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:10,461 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:10,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:10,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437978325] [2024-11-22 22:09:10,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437978325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:10,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:10,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:09:10,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132288360] [2024-11-22 22:09:10,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:10,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:09:10,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:10,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:09:10,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:10,463 INFO L87 Difference]: Start difference. First operand 204 states and 274 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:09:10,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:10,489 INFO L93 Difference]: Finished difference Result 215 states and 287 transitions. [2024-11-22 22:09:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:09:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-22 22:09:10,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:10,491 INFO L225 Difference]: With dead ends: 215 [2024-11-22 22:09:10,491 INFO L226 Difference]: Without dead ends: 214 [2024-11-22 22:09:10,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:10,492 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:10,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 171 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:10,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-22 22:09:10,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-22 22:09:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 160 states have (on average 1.2625) internal successors, (202), 165 states have internal predecessors, (202), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2024-11-22 22:09:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 285 transitions. [2024-11-22 22:09:10,501 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 285 transitions. Word has length 39 [2024-11-22 22:09:10,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:10,501 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 285 transitions. [2024-11-22 22:09:10,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:09:10,501 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 285 transitions. [2024-11-22 22:09:10,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-22 22:09:10,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:10,502 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-22 22:09:10,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 22:09:10,502 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:10,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:10,503 INFO L85 PathProgramCache]: Analyzing trace with hash 663521416, now seen corresponding path program 1 times [2024-11-22 22:09:10,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:10,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706352573] [2024-11-22 22:09:10,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:10,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 22:09:10,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:10,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706352573] [2024-11-22 22:09:10,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706352573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:10,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:10,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:09:10,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445183901] [2024-11-22 22:09:10,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:10,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:09:10,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:10,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:09:10,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:10,536 INFO L87 Difference]: Start difference. First operand 214 states and 285 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:09:10,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:10,551 INFO L93 Difference]: Finished difference Result 214 states and 285 transitions. [2024-11-22 22:09:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:09:10,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-11-22 22:09:10,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:10,553 INFO L225 Difference]: With dead ends: 214 [2024-11-22 22:09:10,553 INFO L226 Difference]: Without dead ends: 213 [2024-11-22 22:09:10,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:10,553 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 4 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:10,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 148 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:10,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-22 22:09:10,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-11-22 22:09:10,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 160 states have (on average 1.25625) internal successors, (201), 164 states have internal predecessors, (201), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2024-11-22 22:09:10,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 284 transitions. [2024-11-22 22:09:10,584 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 284 transitions. Word has length 43 [2024-11-22 22:09:10,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:10,585 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 284 transitions. [2024-11-22 22:09:10,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:09:10,585 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 284 transitions. [2024-11-22 22:09:10,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-22 22:09:10,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:10,585 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-22 22:09:10,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 22:09:10,586 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:10,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:10,586 INFO L85 PathProgramCache]: Analyzing trace with hash -905672465, now seen corresponding path program 1 times [2024-11-22 22:09:10,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:10,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000459963] [2024-11-22 22:09:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:10,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 22:09:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000459963] [2024-11-22 22:09:10,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000459963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:10,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:10,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:09:10,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751033242] [2024-11-22 22:09:10,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:10,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:09:10,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:09:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:10,620 INFO L87 Difference]: Start difference. First operand 213 states and 284 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:09:10,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:10,642 INFO L93 Difference]: Finished difference Result 219 states and 289 transitions. [2024-11-22 22:09:10,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:09:10,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-11-22 22:09:10,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:10,643 INFO L225 Difference]: With dead ends: 219 [2024-11-22 22:09:10,643 INFO L226 Difference]: Without dead ends: 218 [2024-11-22 22:09:10,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:09:10,644 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 3 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:10,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 165 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:10,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-22 22:09:10,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2024-11-22 22:09:10,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 164 states have (on average 1.25) internal successors, (205), 168 states have internal predecessors, (205), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2024-11-22 22:09:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 288 transitions. [2024-11-22 22:09:10,664 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 288 transitions. Word has length 44 [2024-11-22 22:09:10,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:10,665 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 288 transitions. [2024-11-22 22:09:10,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 22:09:10,665 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 288 transitions. [2024-11-22 22:09:10,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-22 22:09:10,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:10,665 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2024-11-22 22:09:10,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 22:09:10,665 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:10,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:10,666 INFO L85 PathProgramCache]: Analyzing trace with hash 249516746, now seen corresponding path program 1 times [2024-11-22 22:09:10,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:10,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127544371] [2024-11-22 22:09:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:10,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:10,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:10,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127544371] [2024-11-22 22:09:10,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127544371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:10,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114389071] [2024-11-22 22:09:10,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:10,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:10,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:10,814 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) [2024-11-22 22:09:10,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 22:09:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:10,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:09:10,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:10,875 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:10,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:10,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114389071] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:09:10,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:09:10,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-22 22:09:10,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828205067] [2024-11-22 22:09:10,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:10,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 22:09:10,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 22:09:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-22 22:09:10,985 INFO L87 Difference]: Start difference. First operand 217 states and 288 transitions. Second operand has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:11,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:11,261 INFO L93 Difference]: Finished difference Result 304 states and 396 transitions. [2024-11-22 22:09:11,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 22:09:11,262 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 48 [2024-11-22 22:09:11,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:11,263 INFO L225 Difference]: With dead ends: 304 [2024-11-22 22:09:11,263 INFO L226 Difference]: Without dead ends: 303 [2024-11-22 22:09:11,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-22 22:09:11,264 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 114 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:11,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 703 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:09:11,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-22 22:09:11,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 280. [2024-11-22 22:09:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 212 states have (on average 1.2877358490566038) internal successors, (273), 218 states have internal predecessors, (273), 42 states have call successors, (42), 12 states have call predecessors, (42), 15 states have return successors, (69), 49 states have call predecessors, (69), 42 states have call successors, (69) [2024-11-22 22:09:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 384 transitions. [2024-11-22 22:09:11,277 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 384 transitions. Word has length 48 [2024-11-22 22:09:11,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:11,277 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 384 transitions. [2024-11-22 22:09:11,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 12 states have internal predecessors, (46), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:11,277 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 384 transitions. [2024-11-22 22:09:11,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 22:09:11,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:11,278 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 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] [2024-11-22 22:09:11,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 22:09:11,478 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,SelfDestructingSolverStorable17 [2024-11-22 22:09:11,479 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:11,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:11,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1302881257, now seen corresponding path program 1 times [2024-11-22 22:09:11,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:11,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232453574] [2024-11-22 22:09:11,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:11,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:11,549 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 22:09:11,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:11,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232453574] [2024-11-22 22:09:11,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232453574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:11,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 22:09:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226793506] [2024-11-22 22:09:11,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:11,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:09:11,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:11,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:09:11,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:09:11,551 INFO L87 Difference]: Start difference. First operand 280 states and 384 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:11,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:11,622 INFO L93 Difference]: Finished difference Result 511 states and 705 transitions. [2024-11-22 22:09:11,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 22:09:11,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2024-11-22 22:09:11,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:11,623 INFO L225 Difference]: With dead ends: 511 [2024-11-22 22:09:11,623 INFO L226 Difference]: Without dead ends: 265 [2024-11-22 22:09:11,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:09:11,624 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 15 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:11,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 239 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:11,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-22 22:09:11,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 264. [2024-11-22 22:09:11,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 202 states have (on average 1.2772277227722773) internal successors, (258), 209 states have internal predecessors, (258), 37 states have call successors, (37), 11 states have call predecessors, (37), 14 states have return successors, (61), 43 states have call predecessors, (61), 37 states have call successors, (61) [2024-11-22 22:09:11,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 356 transitions. [2024-11-22 22:09:11,634 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 356 transitions. Word has length 54 [2024-11-22 22:09:11,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:11,634 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 356 transitions. [2024-11-22 22:09:11,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:11,634 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 356 transitions. [2024-11-22 22:09:11,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 22:09:11,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:11,635 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 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] [2024-11-22 22:09:11,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 22:09:11,635 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:11,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:11,636 INFO L85 PathProgramCache]: Analyzing trace with hash 383045525, now seen corresponding path program 2 times [2024-11-22 22:09:11,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:11,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136547071] [2024-11-22 22:09:11,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:09:11,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:11,643 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:09:11,643 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:09:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 22:09:11,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:11,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136547071] [2024-11-22 22:09:11,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136547071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:11,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:11,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 22:09:11,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368819186] [2024-11-22 22:09:11,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:11,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 22:09:11,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:11,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 22:09:11,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:09:11,703 INFO L87 Difference]: Start difference. First operand 264 states and 356 transitions. Second operand has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:11,832 INFO L93 Difference]: Finished difference Result 541 states and 747 transitions. [2024-11-22 22:09:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 22:09:11,833 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2024-11-22 22:09:11,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:11,834 INFO L225 Difference]: With dead ends: 541 [2024-11-22 22:09:11,834 INFO L226 Difference]: Without dead ends: 315 [2024-11-22 22:09:11,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:09:11,836 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 42 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:11,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 346 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:11,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-22 22:09:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 308. [2024-11-22 22:09:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 236 states have (on average 1.305084745762712) internal successors, (308), 241 states have internal predecessors, (308), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2024-11-22 22:09:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 428 transitions. [2024-11-22 22:09:11,847 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 428 transitions. Word has length 54 [2024-11-22 22:09:11,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:11,848 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 428 transitions. [2024-11-22 22:09:11,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 428 transitions. [2024-11-22 22:09:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-22 22:09:11,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:11,848 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 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, 1, 1] [2024-11-22 22:09:11,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 22:09:11,849 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:11,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:11,849 INFO L85 PathProgramCache]: Analyzing trace with hash -744620115, now seen corresponding path program 1 times [2024-11-22 22:09:11,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:11,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810203852] [2024-11-22 22:09:11,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:11,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:11,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [506354366] [2024-11-22 22:09:11,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:11,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:11,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:11,876 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) [2024-11-22 22:09:11,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 22:09:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:11,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:09:11,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 22:09:11,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:09:11,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:11,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810203852] [2024-11-22 22:09:11,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:11,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506354366] [2024-11-22 22:09:11,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506354366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:11,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:11,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 22:09:11,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214700611] [2024-11-22 22:09:11,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:11,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:09:11,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:11,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:09:11,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:09:11,960 INFO L87 Difference]: Start difference. First operand 308 states and 428 transitions. Second operand has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 22:09:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:11,984 INFO L93 Difference]: Finished difference Result 308 states and 428 transitions. [2024-11-22 22:09:11,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 22:09:11,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2024-11-22 22:09:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:11,986 INFO L225 Difference]: With dead ends: 308 [2024-11-22 22:09:11,986 INFO L226 Difference]: Without dead ends: 307 [2024-11-22 22:09:11,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 22:09:11,987 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:11,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 202 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:11,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-22 22:09:11,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2024-11-22 22:09:11,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 236 states have (on average 1.2923728813559323) internal successors, (305), 240 states have internal predecessors, (305), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2024-11-22 22:09:11,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 425 transitions. [2024-11-22 22:09:11,998 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 425 transitions. Word has length 55 [2024-11-22 22:09:11,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:11,998 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 425 transitions. [2024-11-22 22:09:11,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 22:09:11,999 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 425 transitions. [2024-11-22 22:09:11,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 22:09:11,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:11,999 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2024-11-22 22:09:12,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 22:09:12,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:12,200 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:12,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:12,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1364436842, now seen corresponding path program 1 times [2024-11-22 22:09:12,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:12,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596229045] [2024-11-22 22:09:12,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:12,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:12,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:12,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596229045] [2024-11-22 22:09:12,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596229045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:12,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968161255] [2024-11-22 22:09:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:12,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:12,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:12,291 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) [2024-11-22 22:09:12,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 22:09:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:12,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:09:12,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:12,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:12,491 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 22:09:12,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968161255] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:09:12,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:09:12,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-22 22:09:12,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424829506] [2024-11-22 22:09:12,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:12,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 22:09:12,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:12,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 22:09:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-22 22:09:12,493 INFO L87 Difference]: Start difference. First operand 307 states and 425 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:12,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:12,589 INFO L93 Difference]: Finished difference Result 538 states and 742 transitions. [2024-11-22 22:09:12,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 22:09:12,589 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2024-11-22 22:09:12,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:12,591 INFO L225 Difference]: With dead ends: 538 [2024-11-22 22:09:12,591 INFO L226 Difference]: Without dead ends: 318 [2024-11-22 22:09:12,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 95 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-22 22:09:12,593 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 19 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:12,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 325 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:12,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-22 22:09:12,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 311. [2024-11-22 22:09:12,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 240 states have (on average 1.2833333333333334) internal successors, (308), 244 states have internal predecessors, (308), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2024-11-22 22:09:12,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 428 transitions. [2024-11-22 22:09:12,608 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 428 transitions. Word has length 54 [2024-11-22 22:09:12,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:12,608 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 428 transitions. [2024-11-22 22:09:12,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:12,609 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 428 transitions. [2024-11-22 22:09:12,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 22:09:12,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:12,609 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 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, 1, 1, 1] [2024-11-22 22:09:12,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 22:09:12,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:12,811 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:12,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:12,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1608387041, now seen corresponding path program 1 times [2024-11-22 22:09:12,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:12,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308664487] [2024-11-22 22:09:12,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:12,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407300194] [2024-11-22 22:09:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:12,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:12,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:12,827 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) [2024-11-22 22:09:12,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 22:09:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:12,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 22:09:12,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 22:09:12,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:13,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:13,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308664487] [2024-11-22 22:09:13,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:13,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407300194] [2024-11-22 22:09:13,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407300194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:13,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:09:13,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-22 22:09:13,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160335384] [2024-11-22 22:09:13,087 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:13,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 22:09:13,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:13,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 22:09:13,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-22 22:09:13,089 INFO L87 Difference]: Start difference. First operand 311 states and 428 transitions. Second operand has 13 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:13,298 INFO L93 Difference]: Finished difference Result 335 states and 448 transitions. [2024-11-22 22:09:13,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 22:09:13,298 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 56 [2024-11-22 22:09:13,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:13,300 INFO L225 Difference]: With dead ends: 335 [2024-11-22 22:09:13,300 INFO L226 Difference]: Without dead ends: 334 [2024-11-22 22:09:13,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-11-22 22:09:13,300 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 64 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:13,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 358 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-22 22:09:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 311. [2024-11-22 22:09:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 240 states have (on average 1.2791666666666666) internal successors, (307), 244 states have internal predecessors, (307), 45 states have call successors, (45), 13 states have call predecessors, (45), 16 states have return successors, (75), 53 states have call predecessors, (75), 45 states have call successors, (75) [2024-11-22 22:09:13,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 427 transitions. [2024-11-22 22:09:13,311 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 427 transitions. Word has length 56 [2024-11-22 22:09:13,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:13,311 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 427 transitions. [2024-11-22 22:09:13,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-22 22:09:13,312 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 427 transitions. [2024-11-22 22:09:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-22 22:09:13,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:13,312 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 4, 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] [2024-11-22 22:09:13,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 22:09:13,516 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,SelfDestructingSolverStorable22 [2024-11-22 22:09:13,517 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:13,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:13,518 INFO L85 PathProgramCache]: Analyzing trace with hash 515976557, now seen corresponding path program 1 times [2024-11-22 22:09:13,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:13,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019559038] [2024-11-22 22:09:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:13,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-22 22:09:13,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:13,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019559038] [2024-11-22 22:09:13,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019559038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:13,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:13,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 22:09:13,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235591029] [2024-11-22 22:09:13,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:13,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 22:09:13,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:13,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 22:09:13,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:09:13,602 INFO L87 Difference]: Start difference. First operand 311 states and 427 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 22:09:13,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:13,689 INFO L93 Difference]: Finished difference Result 576 states and 786 transitions. [2024-11-22 22:09:13,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:09:13,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2024-11-22 22:09:13,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:13,692 INFO L225 Difference]: With dead ends: 576 [2024-11-22 22:09:13,692 INFO L226 Difference]: Without dead ends: 314 [2024-11-22 22:09:13,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:09:13,693 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 37 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:13,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 358 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:13,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-22 22:09:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 307. [2024-11-22 22:09:13,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 237 states have (on average 1.2658227848101267) internal successors, (300), 241 states have internal predecessors, (300), 43 states have call successors, (43), 14 states have call predecessors, (43), 17 states have return successors, (69), 51 states have call predecessors, (69), 43 states have call successors, (69) [2024-11-22 22:09:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 412 transitions. [2024-11-22 22:09:13,710 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 412 transitions. Word has length 64 [2024-11-22 22:09:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:13,710 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 412 transitions. [2024-11-22 22:09:13,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 22:09:13,711 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 412 transitions. [2024-11-22 22:09:13,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 22:09:13,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:13,711 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 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] [2024-11-22 22:09:13,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 22:09:13,712 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting binomialCoefficientErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:13,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:13,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1931668771, now seen corresponding path program 1 times [2024-11-22 22:09:13,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:13,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019976320] [2024-11-22 22:09:13,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:13,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:13,819 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 22:09:13,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:13,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019976320] [2024-11-22 22:09:13,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019976320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:13,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:13,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 22:09:13,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144731459] [2024-11-22 22:09:13,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:13,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 22:09:13,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:13,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 22:09:13,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:09:13,821 INFO L87 Difference]: Start difference. First operand 307 states and 412 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 22:09:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:13,961 INFO L93 Difference]: Finished difference Result 313 states and 412 transitions. [2024-11-22 22:09:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 22:09:13,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-11-22 22:09:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:13,962 INFO L225 Difference]: With dead ends: 313 [2024-11-22 22:09:13,962 INFO L226 Difference]: Without dead ends: 312 [2024-11-22 22:09:13,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-22 22:09:13,963 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 42 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:13,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 388 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-22 22:09:13,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2024-11-22 22:09:13,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 237 states have (on average 1.2320675105485233) internal successors, (292), 240 states have internal predecessors, (292), 43 states have call successors, (43), 14 states have call predecessors, (43), 17 states have return successors, (69), 51 states have call predecessors, (69), 43 states have call successors, (69) [2024-11-22 22:09:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 404 transitions. [2024-11-22 22:09:13,978 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 404 transitions. Word has length 66 [2024-11-22 22:09:13,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:13,978 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 404 transitions. [2024-11-22 22:09:13,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 22:09:13,981 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 404 transitions. [2024-11-22 22:09:13,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 22:09:13,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:13,982 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:13,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 22:09:13,982 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:13,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:13,983 INFO L85 PathProgramCache]: Analyzing trace with hash -247810189, now seen corresponding path program 1 times [2024-11-22 22:09:13,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:13,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318339126] [2024-11-22 22:09:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:13,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 22:09:14,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:14,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318339126] [2024-11-22 22:09:14,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318339126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:14,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893619081] [2024-11-22 22:09:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:14,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:14,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:14,082 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) [2024-11-22 22:09:14,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 22:09:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:14,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 22:09:14,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:14,210 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 22:09:14,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 22:09:14,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893619081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:09:14,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:09:14,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-22 22:09:14,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627424999] [2024-11-22 22:09:14,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:14,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 22:09:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 22:09:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-22 22:09:14,343 INFO L87 Difference]: Start difference. First operand 306 states and 404 transitions. Second operand has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 10 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-22 22:09:14,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:14,534 INFO L93 Difference]: Finished difference Result 434 states and 578 transitions. [2024-11-22 22:09:14,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 22:09:14,534 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 10 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 67 [2024-11-22 22:09:14,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:14,536 INFO L225 Difference]: With dead ends: 434 [2024-11-22 22:09:14,536 INFO L226 Difference]: Without dead ends: 433 [2024-11-22 22:09:14,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2024-11-22 22:09:14,537 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 136 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:14,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 695 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:14,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-22 22:09:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 414. [2024-11-22 22:09:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 321 states have (on average 1.2087227414330217) internal successors, (388), 320 states have internal predecessors, (388), 64 states have call successors, (64), 17 states have call predecessors, (64), 20 states have return successors, (108), 76 states have call predecessors, (108), 64 states have call successors, (108) [2024-11-22 22:09:14,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 560 transitions. [2024-11-22 22:09:14,573 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 560 transitions. Word has length 67 [2024-11-22 22:09:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:14,574 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 560 transitions. [2024-11-22 22:09:14,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 10 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-22 22:09:14,574 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 560 transitions. [2024-11-22 22:09:14,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 22:09:14,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:14,575 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:14,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 22:09:14,778 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,SelfDestructingSolverStorable25 [2024-11-22 22:09:14,779 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:14,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash -713206344, now seen corresponding path program 2 times [2024-11-22 22:09:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:14,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244574053] [2024-11-22 22:09:14,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:09:14,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:14,790 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:09:14,790 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:09:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 22:09:14,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:14,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244574053] [2024-11-22 22:09:14,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244574053] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:14,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854228227] [2024-11-22 22:09:14,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:09:14,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:14,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:14,919 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) [2024-11-22 22:09:14,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 22:09:14,959 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:09:14,959 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:09:14,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 22:09:14,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-22 22:09:15,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:15,242 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-22 22:09:15,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854228227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:09:15,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:09:15,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2024-11-22 22:09:15,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852613847] [2024-11-22 22:09:15,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:15,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 22:09:15,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:15,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 22:09:15,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2024-11-22 22:09:15,244 INFO L87 Difference]: Start difference. First operand 414 states and 560 transitions. Second operand has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 18 states have internal predecessors, (84), 10 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-22 22:09:15,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:15,733 INFO L93 Difference]: Finished difference Result 505 states and 648 transitions. [2024-11-22 22:09:15,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-22 22:09:15,733 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 18 states have internal predecessors, (84), 10 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 72 [2024-11-22 22:09:15,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:15,735 INFO L225 Difference]: With dead ends: 505 [2024-11-22 22:09:15,735 INFO L226 Difference]: Without dead ends: 504 [2024-11-22 22:09:15,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=1294, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 22:09:15,737 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 225 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:15,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 782 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 22:09:15,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-22 22:09:15,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 484. [2024-11-22 22:09:15,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 374 states have (on average 1.2085561497326203) internal successors, (452), 378 states have internal predecessors, (452), 70 states have call successors, (70), 23 states have call predecessors, (70), 31 states have return successors, (118), 82 states have call predecessors, (118), 70 states have call successors, (118) [2024-11-22 22:09:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 640 transitions. [2024-11-22 22:09:15,756 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 640 transitions. Word has length 72 [2024-11-22 22:09:15,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:15,757 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 640 transitions. [2024-11-22 22:09:15,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.652173913043478) internal successors, (84), 18 states have internal predecessors, (84), 10 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-22 22:09:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 640 transitions. [2024-11-22 22:09:15,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-22 22:09:15,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:15,758 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:15,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-22 22:09:15,961 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,SelfDestructingSolverStorable26 [2024-11-22 22:09:15,962 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:15,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:15,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1724138098, now seen corresponding path program 1 times [2024-11-22 22:09:15,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:15,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640382028] [2024-11-22 22:09:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:15,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:16,059 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-22 22:09:16,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:16,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640382028] [2024-11-22 22:09:16,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640382028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:16,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:16,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 22:09:16,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879077870] [2024-11-22 22:09:16,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:16,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:09:16,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:16,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:09:16,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:09:16,061 INFO L87 Difference]: Start difference. First operand 484 states and 640 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:09:16,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:16,258 INFO L93 Difference]: Finished difference Result 881 states and 1188 transitions. [2024-11-22 22:09:16,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 22:09:16,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2024-11-22 22:09:16,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:16,260 INFO L225 Difference]: With dead ends: 881 [2024-11-22 22:09:16,260 INFO L226 Difference]: Without dead ends: 442 [2024-11-22 22:09:16,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-22 22:09:16,262 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 47 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:16,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 338 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-22 22:09:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 380. [2024-11-22 22:09:16,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 289 states have (on average 1.2491349480968859) internal successors, (361), 301 states have internal predecessors, (361), 55 states have call successors, (55), 23 states have call predecessors, (55), 27 states have return successors, (76), 55 states have call predecessors, (76), 55 states have call successors, (76) [2024-11-22 22:09:16,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 492 transitions. [2024-11-22 22:09:16,277 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 492 transitions. Word has length 76 [2024-11-22 22:09:16,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:16,277 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 492 transitions. [2024-11-22 22:09:16,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:09:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 492 transitions. [2024-11-22 22:09:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-22 22:09:16,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:16,278 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:16,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 22:09:16,278 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:16,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1228745485, now seen corresponding path program 1 times [2024-11-22 22:09:16,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:16,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289963218] [2024-11-22 22:09:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:16,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:16,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454274969] [2024-11-22 22:09:16,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:16,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:16,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:16,288 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) [2024-11-22 22:09:16,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 22:09:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:16,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 22:09:16,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 40 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-22 22:09:16,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:16,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:16,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289963218] [2024-11-22 22:09:16,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:16,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454274969] [2024-11-22 22:09:16,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454274969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:16,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:09:16,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-22 22:09:16,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310740746] [2024-11-22 22:09:16,596 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:16,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 22:09:16,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:16,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 22:09:16,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-22 22:09:16,598 INFO L87 Difference]: Start difference. First operand 380 states and 492 transitions. Second operand has 17 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 22:09:16,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:16,979 INFO L93 Difference]: Finished difference Result 518 states and 657 transitions. [2024-11-22 22:09:16,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 22:09:16,979 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) Word has length 80 [2024-11-22 22:09:16,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:16,982 INFO L225 Difference]: With dead ends: 518 [2024-11-22 22:09:16,982 INFO L226 Difference]: Without dead ends: 514 [2024-11-22 22:09:16,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2024-11-22 22:09:16,983 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 107 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:16,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 557 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:09:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-22 22:09:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 453. [2024-11-22 22:09:17,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 347 states have (on average 1.2276657060518732) internal successors, (426), 357 states have internal predecessors, (426), 63 states have call successors, (63), 27 states have call predecessors, (63), 34 states have return successors, (92), 68 states have call predecessors, (92), 63 states have call successors, (92) [2024-11-22 22:09:17,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 581 transitions. [2024-11-22 22:09:17,004 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 581 transitions. Word has length 80 [2024-11-22 22:09:17,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:17,004 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 581 transitions. [2024-11-22 22:09:17,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 8 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 22:09:17,005 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 581 transitions. [2024-11-22 22:09:17,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 22:09:17,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:17,007 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 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] [2024-11-22 22:09:17,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-22 22:09:17,211 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,SelfDestructingSolverStorable28 [2024-11-22 22:09:17,212 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:17,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1048752312, now seen corresponding path program 1 times [2024-11-22 22:09:17,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:17,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441333156] [2024-11-22 22:09:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:17,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:17,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851759366] [2024-11-22 22:09:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:17,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:17,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:17,224 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) [2024-11-22 22:09:17,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 22:09:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:17,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:09:17,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-22 22:09:17,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:09:17,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:17,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441333156] [2024-11-22 22:09:17,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:17,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851759366] [2024-11-22 22:09:17,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851759366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:09:17,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:09:17,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 22:09:17,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820264090] [2024-11-22 22:09:17,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:09:17,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 22:09:17,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:17,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 22:09:17,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:09:17,325 INFO L87 Difference]: Start difference. First operand 453 states and 581 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:09:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:17,369 INFO L93 Difference]: Finished difference Result 453 states and 581 transitions. [2024-11-22 22:09:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:09:17,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-22 22:09:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:17,371 INFO L225 Difference]: With dead ends: 453 [2024-11-22 22:09:17,371 INFO L226 Difference]: Without dead ends: 452 [2024-11-22 22:09:17,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:09:17,372 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:17,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 160 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-22 22:09:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 452. [2024-11-22 22:09:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 347 states have (on average 1.201729106628242) internal successors, (417), 356 states have internal predecessors, (417), 63 states have call successors, (63), 27 states have call predecessors, (63), 34 states have return successors, (92), 68 states have call predecessors, (92), 63 states have call successors, (92) [2024-11-22 22:09:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 572 transitions. [2024-11-22 22:09:17,389 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 572 transitions. Word has length 84 [2024-11-22 22:09:17,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:17,390 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 572 transitions. [2024-11-22 22:09:17,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:09:17,390 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 572 transitions. [2024-11-22 22:09:17,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-22 22:09:17,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:17,391 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 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] [2024-11-22 22:09:17,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-22 22:09:17,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:17,596 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:17,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:17,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1848416756, now seen corresponding path program 1 times [2024-11-22 22:09:17,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:17,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502355419] [2024-11-22 22:09:17,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:17,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:09:17,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582886829] [2024-11-22 22:09:17,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:17,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:17,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:17,606 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:09:17,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 22:09:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:17,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 22:09:17,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:17,814 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-22 22:09:17,814 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:18,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:18,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502355419] [2024-11-22 22:09:18,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:18,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582886829] [2024-11-22 22:09:18,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582886829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:18,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:09:18,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-22 22:09:18,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019347022] [2024-11-22 22:09:18,005 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:18,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 22:09:18,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:18,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 22:09:18,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 22:09:18,006 INFO L87 Difference]: Start difference. First operand 452 states and 572 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:09:18,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:18,179 INFO L93 Difference]: Finished difference Result 575 states and 769 transitions. [2024-11-22 22:09:18,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 22:09:18,179 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2024-11-22 22:09:18,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:18,181 INFO L225 Difference]: With dead ends: 575 [2024-11-22 22:09:18,181 INFO L226 Difference]: Without dead ends: 574 [2024-11-22 22:09:18,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-22 22:09:18,183 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 13 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:18,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 274 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:09:18,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-22 22:09:18,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 489. [2024-11-22 22:09:18,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 377 states have (on average 1.1830238726790452) internal successors, (446), 383 states have internal predecessors, (446), 70 states have call successors, (70), 27 states have call predecessors, (70), 34 states have return successors, (99), 78 states have call predecessors, (99), 70 states have call successors, (99) [2024-11-22 22:09:18,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 615 transitions. [2024-11-22 22:09:18,203 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 615 transitions. Word has length 85 [2024-11-22 22:09:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:18,204 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 615 transitions. [2024-11-22 22:09:18,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:09:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 615 transitions. [2024-11-22 22:09:18,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 22:09:18,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:18,205 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 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] [2024-11-22 22:09:18,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 22:09:18,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-22 22:09:18,410 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:18,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:18,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1466344650, now seen corresponding path program 2 times [2024-11-22 22:09:18,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:18,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755139636] [2024-11-22 22:09:18,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:09:18,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:18,424 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:09:18,425 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:09:18,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617886930] [2024-11-22 22:09:18,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:09:18,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:18,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:18,428 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:09:18,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 22:09:18,468 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:09:18,468 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:09:18,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-22 22:09:18,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 52 proven. 22 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-22 22:09:18,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:52,017 WARN L873 $PredicateComparison]: unable to prove that (and (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| Int)) (let ((.cse0 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| c_fact_~n))) (or (< 2147483647 .cse0) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| Int)) (let ((.cse1 (* |c_fact_#in~n| |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8|))) (or (not (= 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse1)))) (< 0 (+ |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| 1)) (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse0))) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse1) 0) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse0) 0)))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| Int)) (let ((.cse2 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| c_fact_~n))) (or (< 2147483647 .cse2) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| Int)) (or (< (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| (* |c_fact_#in~n| |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8|)) 2147483648) 0) (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse2))) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse2) 0))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| Int)) (let ((.cse4 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| Int)) (let ((.cse3 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse4)))) (or (< 0 .cse3) (= .cse3 0)))) (< (* |c_fact_#in~n| |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8|) 2147483648) (< 2147483647 .cse4)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| Int)) (let ((.cse7 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| Int)) (let ((.cse5 (* |c_fact_#in~n| |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8|)) (.cse6 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse7)))) (or (not (= 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse5)))) (< 0 (+ |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| 1)) (< 0 .cse6) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse5) 0) (= .cse6 0)))) (< 2147483647 .cse7)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| Int)) (let ((.cse8 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| c_fact_~n))) (or (< 2147483647 .cse8) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| Int)) (let ((.cse9 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse8)))) (or (< (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| (* |c_fact_#in~n| |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8|)) 2147483648) 0) (< 0 .cse9) (= .cse9 0))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| Int)) (let ((.cse10 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| c_fact_~n))) (or (< (* |c_fact_#in~n| |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8|) 2147483648) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| Int)) (or (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse10))) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| .cse10) 0)))) (< 2147483647 .cse10)))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| Int) (|v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| Int)) (or (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| 0) (< (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| (* |c_fact_#in~n| |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8|)) 2147483648) 0) (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| c_fact_~n)))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| Int)) (or (< (* |c_fact_#in~n| |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8|) 2147483648) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| Int)) (or (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| 0) (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_7| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_8| c_fact_~n))))))))) is different from true [2024-11-22 22:09:52,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:52,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755139636] [2024-11-22 22:09:52,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:09:52,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617886930] [2024-11-22 22:09:52,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617886930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:52,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:09:52,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-22 22:09:52,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337423169] [2024-11-22 22:09:52,020 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:52,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 22:09:52,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:52,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 22:09:52,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=441, Unknown=5, NotChecked=42, Total=552 [2024-11-22 22:09:52,023 INFO L87 Difference]: Start difference. First operand 489 states and 615 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 7 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 22:09:57,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:57,577 INFO L93 Difference]: Finished difference Result 569 states and 746 transitions. [2024-11-22 22:09:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 22:09:57,577 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 7 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 86 [2024-11-22 22:09:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:57,580 INFO L225 Difference]: With dead ends: 569 [2024-11-22 22:09:57,580 INFO L226 Difference]: Without dead ends: 567 [2024-11-22 22:09:57,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 36.7s TimeCoverageRelationStatistics Valid=111, Invalid=643, Unknown=6, NotChecked=52, Total=812 [2024-11-22 22:09:57,581 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 77 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:57,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 399 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 22:09:57,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-22 22:09:57,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 507. [2024-11-22 22:09:57,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 391 states have (on average 1.1764705882352942) internal successors, (460), 397 states have internal predecessors, (460), 72 states have call successors, (72), 27 states have call predecessors, (72), 36 states have return successors, (108), 82 states have call predecessors, (108), 72 states have call successors, (108) [2024-11-22 22:09:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 640 transitions. [2024-11-22 22:09:57,603 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 640 transitions. Word has length 86 [2024-11-22 22:09:57,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:57,604 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 640 transitions. [2024-11-22 22:09:57,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 7 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-22 22:09:57,604 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 640 transitions. [2024-11-22 22:09:57,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 22:09:57,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:57,605 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:57,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 22:09:57,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:57,810 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:57,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:57,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2118005771, now seen corresponding path program 2 times [2024-11-22 22:09:57,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:57,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541006810] [2024-11-22 22:09:57,810 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:09:57,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:57,821 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:09:57,822 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:09:57,960 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-22 22:09:57,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:57,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541006810] [2024-11-22 22:09:57,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541006810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:57,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152366429] [2024-11-22 22:09:57,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:09:57,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:57,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:57,963 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:09:57,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 22:09:58,003 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:09:58,004 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:09:58,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 22:09:58,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-22 22:09:58,140 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:58,294 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-22 22:09:58,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152366429] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:09:58,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:09:58,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-11-22 22:09:58,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821481856] [2024-11-22 22:09:58,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:58,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 22:09:58,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:58,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 22:09:58,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-22 22:09:58,296 INFO L87 Difference]: Start difference. First operand 507 states and 640 transitions. Second operand has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 15 states have internal predecessors, (69), 9 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-22 22:09:58,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:58,621 INFO L93 Difference]: Finished difference Result 967 states and 1231 transitions. [2024-11-22 22:09:58,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 22:09:58,622 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 15 states have internal predecessors, (69), 9 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 90 [2024-11-22 22:09:58,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:58,624 INFO L225 Difference]: With dead ends: 967 [2024-11-22 22:09:58,624 INFO L226 Difference]: Without dead ends: 501 [2024-11-22 22:09:58,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 167 SyntacticMatches, 9 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2024-11-22 22:09:58,626 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 83 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:58,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 610 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:09:58,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-22 22:09:58,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 485. [2024-11-22 22:09:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 373 states have (on average 1.1715817694369972) internal successors, (437), 380 states have internal predecessors, (437), 70 states have call successors, (70), 28 states have call predecessors, (70), 34 states have return successors, (95), 76 states have call predecessors, (95), 70 states have call successors, (95) [2024-11-22 22:09:58,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 602 transitions. [2024-11-22 22:09:58,644 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 602 transitions. Word has length 90 [2024-11-22 22:09:58,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:58,645 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 602 transitions. [2024-11-22 22:09:58,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 15 states have internal predecessors, (69), 9 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-22 22:09:58,645 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 602 transitions. [2024-11-22 22:09:58,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 22:09:58,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:58,645 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 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, 1] [2024-11-22 22:09:58,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-22 22:09:58,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:58,846 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:58,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:58,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1836504605, now seen corresponding path program 1 times [2024-11-22 22:09:58,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:58,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455926779] [2024-11-22 22:09:58,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:58,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:58,896 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-22 22:09:58,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:58,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455926779] [2024-11-22 22:09:58,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455926779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:58,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428380134] [2024-11-22 22:09:58,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:58,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:58,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:58,899 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:09:58,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 22:09:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:58,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:09:58,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-22 22:09:58,964 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:59,056 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-22 22:09:59,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428380134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:09:59,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:09:59,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-22 22:09:59,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386650680] [2024-11-22 22:09:59,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:59,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:09:59,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:59,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:09:59,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:09:59,057 INFO L87 Difference]: Start difference. First operand 485 states and 602 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-22 22:09:59,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:59,122 INFO L93 Difference]: Finished difference Result 561 states and 710 transitions. [2024-11-22 22:09:59,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 22:09:59,123 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 93 [2024-11-22 22:09:59,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:59,125 INFO L225 Difference]: With dead ends: 561 [2024-11-22 22:09:59,125 INFO L226 Difference]: Without dead ends: 560 [2024-11-22 22:09:59,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:09:59,126 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 8 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:59,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 206 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:09:59,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-22 22:09:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-22 22:09:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 437 states have (on average 1.1693363844393592) internal successors, (511), 443 states have internal predecessors, (511), 81 states have call successors, (81), 28 states have call predecessors, (81), 34 states have return successors, (106), 88 states have call predecessors, (106), 81 states have call successors, (106) [2024-11-22 22:09:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 698 transitions. [2024-11-22 22:09:59,174 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 698 transitions. Word has length 93 [2024-11-22 22:09:59,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:59,174 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 698 transitions. [2024-11-22 22:09:59,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-22 22:09:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 698 transitions. [2024-11-22 22:09:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 22:09:59,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:59,175 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:59,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-22 22:09:59,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-22 22:09:59,376 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:09:59,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:09:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1099049156, now seen corresponding path program 1 times [2024-11-22 22:09:59,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:09:59,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237391020] [2024-11-22 22:09:59,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:59,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:09:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-22 22:09:59,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:09:59,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237391020] [2024-11-22 22:09:59,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237391020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:09:59,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560716562] [2024-11-22 22:09:59,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:09:59,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:09:59,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:09:59,475 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:09:59,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 22:09:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:09:59,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:09:59,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:09:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-22 22:09:59,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:09:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-22 22:09:59,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560716562] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:09:59,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:09:59,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-22 22:09:59,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836506126] [2024-11-22 22:09:59,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:09:59,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 22:09:59,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:09:59,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 22:09:59,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-22 22:09:59,701 INFO L87 Difference]: Start difference. First operand 560 states and 698 transitions. Second operand has 16 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:09:59,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:09:59,943 INFO L93 Difference]: Finished difference Result 794 states and 993 transitions. [2024-11-22 22:09:59,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 22:09:59,944 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 108 [2024-11-22 22:09:59,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:09:59,946 INFO L225 Difference]: With dead ends: 794 [2024-11-22 22:09:59,946 INFO L226 Difference]: Without dead ends: 781 [2024-11-22 22:09:59,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-22 22:09:59,947 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 115 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:09:59,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 438 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:09:59,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2024-11-22 22:09:59,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 699. [2024-11-22 22:09:59,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 549 states have (on average 1.1821493624772312) internal successors, (649), 552 states have internal predecessors, (649), 101 states have call successors, (101), 35 states have call predecessors, (101), 41 states have return successors, (130), 111 states have call predecessors, (130), 101 states have call successors, (130) [2024-11-22 22:09:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 880 transitions. [2024-11-22 22:09:59,974 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 880 transitions. Word has length 108 [2024-11-22 22:09:59,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:09:59,974 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 880 transitions. [2024-11-22 22:09:59,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:09:59,974 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 880 transitions. [2024-11-22 22:09:59,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 22:09:59,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:09:59,975 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:09:59,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-22 22:10:00,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:00,176 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:00,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:00,177 INFO L85 PathProgramCache]: Analyzing trace with hash -725323059, now seen corresponding path program 1 times [2024-11-22 22:10:00,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:00,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53996108] [2024-11-22 22:10:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:00,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:10:00,306 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-22 22:10:00,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:00,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53996108] [2024-11-22 22:10:00,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53996108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:00,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518075657] [2024-11-22 22:10:00,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:00,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:00,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:00,309 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:00,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 22:10:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:10:00,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 22:10:00,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-22 22:10:00,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:10:00,542 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-22 22:10:00,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518075657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:10:00,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:10:00,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 14 [2024-11-22 22:10:00,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815556865] [2024-11-22 22:10:00,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:10:00,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 22:10:00,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:00,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 22:10:00,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-22 22:10:00,544 INFO L87 Difference]: Start difference. First operand 699 states and 880 transitions. Second operand has 14 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 22:10:00,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:00,879 INFO L93 Difference]: Finished difference Result 1335 states and 1711 transitions. [2024-11-22 22:10:00,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 22:10:00,880 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 110 [2024-11-22 22:10:00,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:00,882 INFO L225 Difference]: With dead ends: 1335 [2024-11-22 22:10:00,882 INFO L226 Difference]: Without dead ends: 710 [2024-11-22 22:10:00,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 210 SyntacticMatches, 10 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-22 22:10:00,885 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 51 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:00,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 713 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 22:10:00,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-22 22:10:00,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 701. [2024-11-22 22:10:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 550 states have (on average 1.18) internal successors, (649), 554 states have internal predecessors, (649), 101 states have call successors, (101), 35 states have call predecessors, (101), 42 states have return successors, (135), 111 states have call predecessors, (135), 101 states have call successors, (135) [2024-11-22 22:10:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 885 transitions. [2024-11-22 22:10:00,910 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 885 transitions. Word has length 110 [2024-11-22 22:10:00,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:00,911 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 885 transitions. [2024-11-22 22:10:00,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 22:10:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 885 transitions. [2024-11-22 22:10:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 22:10:00,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:00,912 INFO L215 NwaCegarLoop]: trace histogram [11, 9, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:00,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-22 22:10:01,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:01,116 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:01,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash 217058850, now seen corresponding path program 2 times [2024-11-22 22:10:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:01,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184790367] [2024-11-22 22:10:01,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:10:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:01,130 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:10:01,132 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:10:01,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716886761] [2024-11-22 22:10:01,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:10:01,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:01,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:01,137 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:01,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 22:10:01,191 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:10:01,191 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:01,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 22:10:01,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 75 proven. 7 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-22 22:10:01,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:10:01,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184790367] [2024-11-22 22:10:01,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:10:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716886761] [2024-11-22 22:10:01,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716886761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:01,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:10:01,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-22 22:10:01,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509024723] [2024-11-22 22:10:01,458 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:10:01,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 22:10:01,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:01,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 22:10:01,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-22 22:10:01,459 INFO L87 Difference]: Start difference. First operand 701 states and 885 transitions. Second operand has 13 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 6 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 22:10:01,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:01,725 INFO L93 Difference]: Finished difference Result 730 states and 912 transitions. [2024-11-22 22:10:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 22:10:01,726 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 6 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 115 [2024-11-22 22:10:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:01,728 INFO L225 Difference]: With dead ends: 730 [2024-11-22 22:10:01,728 INFO L226 Difference]: Without dead ends: 729 [2024-11-22 22:10:01,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-22 22:10:01,729 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 68 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:01,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 502 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:10:01,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-22 22:10:01,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 714. [2024-11-22 22:10:01,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 561 states have (on average 1.1800356506238858) internal successors, (662), 564 states have internal predecessors, (662), 102 states have call successors, (102), 36 states have call predecessors, (102), 43 states have return successors, (132), 113 states have call predecessors, (132), 102 states have call successors, (132) [2024-11-22 22:10:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 896 transitions. [2024-11-22 22:10:01,756 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 896 transitions. Word has length 115 [2024-11-22 22:10:01,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:01,756 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 896 transitions. [2024-11-22 22:10:01,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.454545454545454) internal successors, (49), 10 states have internal predecessors, (49), 6 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 22:10:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 896 transitions. [2024-11-22 22:10:01,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 22:10:01,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:01,757 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:01,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-22 22:10:01,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:01,958 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:01,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:01,958 INFO L85 PathProgramCache]: Analyzing trace with hash -459868787, now seen corresponding path program 2 times [2024-11-22 22:10:01,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:01,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374331931] [2024-11-22 22:10:01,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:10:01,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:01,966 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:10:01,967 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:02,113 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-22 22:10:02,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:02,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374331931] [2024-11-22 22:10:02,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374331931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:10:02,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:10:02,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 22:10:02,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940245211] [2024-11-22 22:10:02,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:10:02,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 22:10:02,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 22:10:02,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:10:02,114 INFO L87 Difference]: Start difference. First operand 714 states and 896 transitions. Second operand has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 22:10:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:02,267 INFO L93 Difference]: Finished difference Result 1208 states and 1519 transitions. [2024-11-22 22:10:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 22:10:02,268 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 114 [2024-11-22 22:10:02,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:02,270 INFO L225 Difference]: With dead ends: 1208 [2024-11-22 22:10:02,270 INFO L226 Difference]: Without dead ends: 746 [2024-11-22 22:10:02,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 22:10:02,272 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 43 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:02,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 465 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:10:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-11-22 22:10:02,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 740. [2024-11-22 22:10:02,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 582 states have (on average 1.1804123711340206) internal successors, (687), 585 states have internal predecessors, (687), 105 states have call successors, (105), 38 states have call predecessors, (105), 45 states have return successors, (133), 116 states have call predecessors, (133), 105 states have call successors, (133) [2024-11-22 22:10:02,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 925 transitions. [2024-11-22 22:10:02,299 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 925 transitions. Word has length 114 [2024-11-22 22:10:02,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:02,299 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 925 transitions. [2024-11-22 22:10:02,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 22:10:02,300 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 925 transitions. [2024-11-22 22:10:02,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 22:10:02,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:02,301 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:02,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-22 22:10:02,301 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:02,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash -873188839, now seen corresponding path program 1 times [2024-11-22 22:10:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:02,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963487457] [2024-11-22 22:10:02,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:10:02,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925496714] [2024-11-22 22:10:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:02,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:02,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:02,316 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:02,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 22:10:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:10:02,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 22:10:02,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 48 proven. 16 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-22 22:10:02,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:10:02,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:02,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963487457] [2024-11-22 22:10:02,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:10:02,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925496714] [2024-11-22 22:10:02,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925496714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:02,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:10:02,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-22 22:10:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249107036] [2024-11-22 22:10:02,651 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:10:02,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 22:10:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:02,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 22:10:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-22 22:10:02,652 INFO L87 Difference]: Start difference. First operand 740 states and 925 transitions. Second operand has 17 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 22:10:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:03,296 INFO L93 Difference]: Finished difference Result 1209 states and 1546 transitions. [2024-11-22 22:10:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-22 22:10:03,296 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 116 [2024-11-22 22:10:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:03,300 INFO L225 Difference]: With dead ends: 1209 [2024-11-22 22:10:03,300 INFO L226 Difference]: Without dead ends: 1207 [2024-11-22 22:10:03,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=235, Invalid=1487, Unknown=0, NotChecked=0, Total=1722 [2024-11-22 22:10:03,301 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 132 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:03,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 532 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 22:10:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-11-22 22:10:03,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 980. [2024-11-22 22:10:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 771 states have (on average 1.1841763942931258) internal successors, (913), 773 states have internal predecessors, (913), 144 states have call successors, (144), 48 states have call predecessors, (144), 57 states have return successors, (185), 158 states have call predecessors, (185), 144 states have call successors, (185) [2024-11-22 22:10:03,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1242 transitions. [2024-11-22 22:10:03,343 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1242 transitions. Word has length 116 [2024-11-22 22:10:03,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:03,343 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1242 transitions. [2024-11-22 22:10:03,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.6666666666666665) internal successors, (55), 15 states have internal predecessors, (55), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-22 22:10:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1242 transitions. [2024-11-22 22:10:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 22:10:03,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:03,344 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:03,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-22 22:10:03,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-22 22:10:03,548 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:03,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:03,549 INFO L85 PathProgramCache]: Analyzing trace with hash 879970193, now seen corresponding path program 1 times [2024-11-22 22:10:03,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:03,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047064539] [2024-11-22 22:10:03,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:03,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:10:03,697 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-22 22:10:03,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:03,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047064539] [2024-11-22 22:10:03,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047064539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:03,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656039670] [2024-11-22 22:10:03,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:03,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:03,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:03,701 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:03,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 22:10:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:10:03,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:10:03,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-22 22:10:03,851 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:10:03,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656039670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:10:03,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:10:03,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2024-11-22 22:10:03,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605815257] [2024-11-22 22:10:03,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:10:03,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 22:10:03,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:03,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 22:10:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-22 22:10:03,852 INFO L87 Difference]: Start difference. First operand 980 states and 1242 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 22:10:04,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:04,029 INFO L93 Difference]: Finished difference Result 1756 states and 2244 transitions. [2024-11-22 22:10:04,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 22:10:04,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 117 [2024-11-22 22:10:04,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:04,035 INFO L225 Difference]: With dead ends: 1756 [2024-11-22 22:10:04,035 INFO L226 Difference]: Without dead ends: 921 [2024-11-22 22:10:04,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-22 22:10:04,038 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 43 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:04,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 435 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:10:04,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-22 22:10:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 908. [2024-11-22 22:10:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 714 states have (on average 1.1862745098039216) internal successors, (847), 719 states have internal predecessors, (847), 132 states have call successors, (132), 48 states have call predecessors, (132), 54 states have return successors, (158), 140 states have call predecessors, (158), 132 states have call successors, (158) [2024-11-22 22:10:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1137 transitions. [2024-11-22 22:10:04,079 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1137 transitions. Word has length 117 [2024-11-22 22:10:04,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:04,080 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1137 transitions. [2024-11-22 22:10:04,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 22:10:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1137 transitions. [2024-11-22 22:10:04,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 22:10:04,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:04,081 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:04,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-22 22:10:04,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-22 22:10:04,286 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:04,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:04,286 INFO L85 PathProgramCache]: Analyzing trace with hash 977173331, now seen corresponding path program 2 times [2024-11-22 22:10:04,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:04,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159454150] [2024-11-22 22:10:04,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:10:04,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:04,302 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:10:04,304 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:04,385 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-22 22:10:04,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159454150] [2024-11-22 22:10:04,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159454150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:04,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887775148] [2024-11-22 22:10:04,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:10:04,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:04,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:04,390 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:04,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-22 22:10:04,437 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:10:04,437 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:04,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:10:04,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:04,481 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-22 22:10:04,481 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:10:04,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887775148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:10:04,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:10:04,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2024-11-22 22:10:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740871049] [2024-11-22 22:10:04,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:10:04,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 22:10:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 22:10:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:10:04,482 INFO L87 Difference]: Start difference. First operand 908 states and 1137 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:10:04,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:04,550 INFO L93 Difference]: Finished difference Result 1454 states and 1824 transitions. [2024-11-22 22:10:04,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 22:10:04,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 117 [2024-11-22 22:10:04,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:04,554 INFO L225 Difference]: With dead ends: 1454 [2024-11-22 22:10:04,554 INFO L226 Difference]: Without dead ends: 778 [2024-11-22 22:10:04,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:10:04,556 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 17 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:04,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 216 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:10:04,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-22 22:10:04,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 777. [2024-11-22 22:10:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 611 states have (on average 1.1800327332242226) internal successors, (721), 616 states have internal predecessors, (721), 111 states have call successors, (111), 42 states have call predecessors, (111), 47 states have return successors, (134), 118 states have call predecessors, (134), 111 states have call successors, (134) [2024-11-22 22:10:04,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 966 transitions. [2024-11-22 22:10:04,611 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 966 transitions. Word has length 117 [2024-11-22 22:10:04,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:04,611 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 966 transitions. [2024-11-22 22:10:04,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 22:10:04,615 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 966 transitions. [2024-11-22 22:10:04,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 22:10:04,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:04,616 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:04,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-22 22:10:04,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:04,817 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:04,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:04,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1448975435, now seen corresponding path program 3 times [2024-11-22 22:10:04,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:04,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174213808] [2024-11-22 22:10:04,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:10:04,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:04,847 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-22 22:10:04,848 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:10:04,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1834683539] [2024-11-22 22:10:04,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:10:04,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:04,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:04,851 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:04,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-22 22:10:04,890 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 22:10:04,890 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:04,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-22 22:10:04,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 79 proven. 20 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-22 22:10:05,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:10:05,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:05,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174213808] [2024-11-22 22:10:05,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:10:05,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834683539] [2024-11-22 22:10:05,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834683539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:05,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:10:05,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-22 22:10:05,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689936651] [2024-11-22 22:10:05,234 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:10:05,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 22:10:05,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:05,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 22:10:05,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-22 22:10:05,235 INFO L87 Difference]: Start difference. First operand 777 states and 966 transitions. Second operand has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 22:10:05,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:05,621 INFO L93 Difference]: Finished difference Result 855 states and 1093 transitions. [2024-11-22 22:10:05,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 22:10:05,621 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 120 [2024-11-22 22:10:05,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:05,624 INFO L225 Difference]: With dead ends: 855 [2024-11-22 22:10:05,624 INFO L226 Difference]: Without dead ends: 848 [2024-11-22 22:10:05,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2024-11-22 22:10:05,625 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 78 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:05,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 496 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 22:10:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-22 22:10:05,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 801. [2024-11-22 22:10:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 633 states have (on average 1.1706161137440758) internal successors, (741), 633 states have internal predecessors, (741), 110 states have call successors, (110), 42 states have call predecessors, (110), 50 states have return successors, (143), 125 states have call predecessors, (143), 110 states have call successors, (143) [2024-11-22 22:10:05,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 994 transitions. [2024-11-22 22:10:05,657 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 994 transitions. Word has length 120 [2024-11-22 22:10:05,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:05,658 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 994 transitions. [2024-11-22 22:10:05,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 22:10:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 994 transitions. [2024-11-22 22:10:05,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 22:10:05,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:05,659 INFO L215 NwaCegarLoop]: trace histogram [13, 10, 7, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-22 22:10:05,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-22 22:10:05,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:05,863 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:05,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:05,863 INFO L85 PathProgramCache]: Analyzing trace with hash 326191317, now seen corresponding path program 4 times [2024-11-22 22:10:05,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:05,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206458921] [2024-11-22 22:10:05,863 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 22:10:05,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:05,874 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 22:10:05,874 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:06,116 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 144 proven. 82 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-22 22:10:06,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:06,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206458921] [2024-11-22 22:10:06,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206458921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:06,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449002395] [2024-11-22 22:10:06,117 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 22:10:06,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:06,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:06,119 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:06,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-22 22:10:06,172 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 22:10:06,173 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:06,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 22:10:06,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 144 proven. 82 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-22 22:10:06,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:10:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 144 proven. 83 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-22 22:10:06,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449002395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:10:06,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:10:06,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 20] total 28 [2024-11-22 22:10:06,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560039907] [2024-11-22 22:10:06,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:10:06,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-22 22:10:06,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:06,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-22 22:10:06,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2024-11-22 22:10:06,734 INFO L87 Difference]: Start difference. First operand 801 states and 994 transitions. Second operand has 28 states, 24 states have (on average 4.708333333333333) internal successors, (113), 25 states have internal predecessors, (113), 16 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 8 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-22 22:10:07,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:07,457 INFO L93 Difference]: Finished difference Result 2472 states and 3587 transitions. [2024-11-22 22:10:07,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-22 22:10:07,458 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 4.708333333333333) internal successors, (113), 25 states have internal predecessors, (113), 16 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 8 states have call predecessors, (18), 10 states have call successors, (18) Word has length 130 [2024-11-22 22:10:07,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:07,467 INFO L225 Difference]: With dead ends: 2472 [2024-11-22 22:10:07,467 INFO L226 Difference]: Without dead ends: 1749 [2024-11-22 22:10:07,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 249 SyntacticMatches, 9 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=1543, Unknown=0, NotChecked=0, Total=1806 [2024-11-22 22:10:07,471 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 190 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:07,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 628 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 22:10:07,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2024-11-22 22:10:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1283. [2024-11-22 22:10:07,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1015 states have (on average 1.175369458128079) internal successors, (1193), 1002 states have internal predecessors, (1193), 184 states have call successors, (184), 65 states have call predecessors, (184), 76 states have return successors, (298), 215 states have call predecessors, (298), 184 states have call successors, (298) [2024-11-22 22:10:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1675 transitions. [2024-11-22 22:10:07,574 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1675 transitions. Word has length 130 [2024-11-22 22:10:07,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:07,575 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1675 transitions. [2024-11-22 22:10:07,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 4.708333333333333) internal successors, (113), 25 states have internal predecessors, (113), 16 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 8 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-22 22:10:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1675 transitions. [2024-11-22 22:10:07,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-22 22:10:07,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:07,577 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:07,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-22 22:10:07,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:07,778 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:07,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:07,778 INFO L85 PathProgramCache]: Analyzing trace with hash 46209849, now seen corresponding path program 3 times [2024-11-22 22:10:07,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:07,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506851269] [2024-11-22 22:10:07,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:10:07,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:07,786 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 22:10:07,786 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:07,815 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-22 22:10:07,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:07,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506851269] [2024-11-22 22:10:07,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506851269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:07,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074353329] [2024-11-22 22:10:07,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 22:10:07,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:07,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:07,818 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:07,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-22 22:10:07,850 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 22:10:07,850 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:07,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 22:10:07,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-22 22:10:07,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:10:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-22 22:10:08,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074353329] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:10:08,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:10:08,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-22 22:10:08,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397726876] [2024-11-22 22:10:08,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:10:08,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 22:10:08,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:08,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 22:10:08,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 22:10:08,040 INFO L87 Difference]: Start difference. First operand 1283 states and 1675 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-22 22:10:08,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:08,153 INFO L93 Difference]: Finished difference Result 1286 states and 1675 transitions. [2024-11-22 22:10:08,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 22:10:08,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 127 [2024-11-22 22:10:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:08,162 INFO L225 Difference]: With dead ends: 1286 [2024-11-22 22:10:08,162 INFO L226 Difference]: Without dead ends: 1285 [2024-11-22 22:10:08,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 248 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-22 22:10:08,162 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 44 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:08,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 305 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:10:08,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2024-11-22 22:10:08,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1283. [2024-11-22 22:10:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1015 states have (on average 1.1724137931034482) internal successors, (1190), 1002 states have internal predecessors, (1190), 184 states have call successors, (184), 65 states have call predecessors, (184), 76 states have return successors, (298), 215 states have call predecessors, (298), 184 states have call successors, (298) [2024-11-22 22:10:08,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1672 transitions. [2024-11-22 22:10:08,221 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1672 transitions. Word has length 127 [2024-11-22 22:10:08,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:08,221 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1672 transitions. [2024-11-22 22:10:08,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 6 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-22 22:10:08,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1672 transitions. [2024-11-22 22:10:08,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 22:10:08,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:08,222 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:08,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-22 22:10:08,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-22 22:10:08,427 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:08,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash 59424108, now seen corresponding path program 1 times [2024-11-22 22:10:08,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:08,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892985990] [2024-11-22 22:10:08,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:08,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:10:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-22 22:10:08,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:08,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892985990] [2024-11-22 22:10:08,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892985990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:10:08,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:10:08,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 22:10:08,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470724181] [2024-11-22 22:10:08,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:10:08,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 22:10:08,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:08,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 22:10:08,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:10:08,570 INFO L87 Difference]: Start difference. First operand 1283 states and 1672 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 22:10:08,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:08,782 INFO L93 Difference]: Finished difference Result 2362 states and 3099 transitions. [2024-11-22 22:10:08,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 22:10:08,782 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 136 [2024-11-22 22:10:08,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:08,787 INFO L225 Difference]: With dead ends: 2362 [2024-11-22 22:10:08,787 INFO L226 Difference]: Without dead ends: 1290 [2024-11-22 22:10:08,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-22 22:10:08,791 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 42 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:08,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 415 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 22:10:08,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2024-11-22 22:10:08,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1283. [2024-11-22 22:10:08,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1015 states have (on average 1.1724137931034482) internal successors, (1190), 1002 states have internal predecessors, (1190), 184 states have call successors, (184), 65 states have call predecessors, (184), 76 states have return successors, (295), 215 states have call predecessors, (295), 184 states have call successors, (295) [2024-11-22 22:10:08,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1669 transitions. [2024-11-22 22:10:08,848 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1669 transitions. Word has length 136 [2024-11-22 22:10:08,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:08,848 INFO L471 AbstractCegarLoop]: Abstraction has 1283 states and 1669 transitions. [2024-11-22 22:10:08,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 22:10:08,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1669 transitions. [2024-11-22 22:10:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 22:10:08,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:08,850 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 9, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:08,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-22 22:10:08,850 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:08,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:08,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1724698812, now seen corresponding path program 2 times [2024-11-22 22:10:08,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:08,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593224195] [2024-11-22 22:10:08,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:10:08,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:08,863 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:10:08,863 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:10:08,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62831987] [2024-11-22 22:10:08,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 22:10:08,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:08,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:08,867 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:08,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-22 22:10:08,925 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 22:10:08,925 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:08,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-22 22:10:08,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 148 proven. 27 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-22 22:10:09,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:10:24,098 WARN L873 $PredicateComparison]: unable to prove that (and (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int) (|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (or (< (+ 2147483648 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) 0) (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#t~ret0| c_fact_~n)))) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| 0))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse0 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (or (< (+ 2147483648 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) 0) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse0) 0)) (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse0))))) (< 2147483647 .cse0)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse3 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (let ((.cse1 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse3))) (.cse2 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) (or (= .cse1 0) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse2) 0) (< 0 .cse1) (< 0 (+ |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| 1)) (not (= (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse2)) 0))))) (< 2147483647 .cse3)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse4 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (let ((.cse5 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse4) 0)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse5) 0) (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse4))) (< 0 (+ |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| 1)) (not (= (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse5)) 0))))) (< 2147483647 .cse4)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (or (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#t~ret0| c_fact_~n)))) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| 0))) (< (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|) 2147483648))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse6 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse6) 0)) (< 0 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse6))))) (< (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|) 2147483648) (< 2147483647 .cse6)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse7 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#t~ret0| c_fact_~n))) (or (< (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|) 2147483648) (< 2147483647 .cse7) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (let ((.cse8 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse7)))) (or (= .cse8 0) (< 0 .cse8))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse10 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#t~ret0| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (let ((.cse9 (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse10)))) (or (< (+ 2147483648 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) 0) (= .cse9 0) (< 0 .cse9)))) (< 2147483647 .cse10))))) is different from true [2024-11-22 22:10:28,827 WARN L873 $PredicateComparison]: unable to prove that (and (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (or (< (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|) 2147483648) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (or (< 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| c_fact_~n)) 2147483649)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| 0))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse0 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse0) 0)) (< 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse0) 2147483649)))) (< 2147483647 .cse0) (< (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|) 2147483648)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse2 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (let ((.cse1 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse2) 2147483649))) (or (< 0 .cse1) (= .cse1 0)))) (< 2147483647 .cse2) (< (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|) 2147483648)))) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int) (|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (or (< (+ 2147483648 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) 0) (< 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| c_fact_~n)) 2147483649)) (< |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| 0))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse3 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| c_fact_~n))) (or (< 2147483647 .cse3) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (let ((.cse4 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse3) 2147483649))) (or (< (+ 2147483648 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) 0) (< 0 .cse4) (= .cse4 0))))))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse7 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (let ((.cse6 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|)) (.cse5 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse7) 2147483649))) (or (< 0 .cse5) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse6) 0) (< 0 (+ |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| 1)) (not (= (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse6)) 0)) (= .cse5 0)))) (< 2147483647 .cse7)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse8 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| c_fact_~n))) (or (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (let ((.cse9 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) (or (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse8) 0)) (< 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse8) 2147483649)) (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse9) 0) (< 0 (+ |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| 1)) (not (= (+ 2147483649 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse9)) 0))))) (< 2147483647 .cse8)))) (forall ((|v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| Int)) (let ((.cse10 (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| c_fact_~n))) (or (< 2147483647 .cse10) (forall ((|v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| Int)) (or (< (+ 2147483648 (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| (* |v_binomialCoefficient_#t~ret2_BEFORE_CALL_10| |c_fact_#in~n|))) 0) (not (= (mod |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse10) 0)) (< 0 (+ (div |v_binomialCoefficient_#t~ret1_BEFORE_CALL_10| .cse10) 2147483649)))))))) is different from true [2024-11-22 22:10:28,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:28,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593224195] [2024-11-22 22:10:28,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:10:28,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62831987] [2024-11-22 22:10:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62831987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:28,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:10:28,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-22 22:10:28,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703970332] [2024-11-22 22:10:28,829 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 22:10:28,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 22:10:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:28,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 22:10:28,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=407, Unknown=2, NotChecked=82, Total=552 [2024-11-22 22:10:28,830 INFO L87 Difference]: Start difference. First operand 1283 states and 1669 transitions. Second operand has 18 states, 16 states have (on average 4.0) internal successors, (64), 17 states have internal predecessors, (64), 7 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-22 22:10:29,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:29,921 INFO L93 Difference]: Finished difference Result 1512 states and 2056 transitions. [2024-11-22 22:10:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 22:10:29,922 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.0) internal successors, (64), 17 states have internal predecessors, (64), 7 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 146 [2024-11-22 22:10:29,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:29,927 INFO L225 Difference]: With dead ends: 1512 [2024-11-22 22:10:29,927 INFO L226 Difference]: Without dead ends: 1510 [2024-11-22 22:10:29,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=108, Invalid=600, Unknown=2, NotChecked=102, Total=812 [2024-11-22 22:10:29,928 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 80 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:29,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 625 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 22:10:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2024-11-22 22:10:29,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1335. [2024-11-22 22:10:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1054 states have (on average 1.1679316888045541) internal successors, (1231), 1043 states have internal predecessors, (1231), 192 states have call successors, (192), 66 states have call predecessors, (192), 81 states have return successors, (346), 225 states have call predecessors, (346), 192 states have call successors, (346) [2024-11-22 22:10:29,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1769 transitions. [2024-11-22 22:10:29,988 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1769 transitions. Word has length 146 [2024-11-22 22:10:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:29,989 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1769 transitions. [2024-11-22 22:10:29,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.0) internal successors, (64), 17 states have internal predecessors, (64), 7 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-22 22:10:29,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1769 transitions. [2024-11-22 22:10:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-22 22:10:29,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:29,991 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 9, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:29,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-22 22:10:30,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-22 22:10:30,196 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:30,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:30,196 INFO L85 PathProgramCache]: Analyzing trace with hash 512731104, now seen corresponding path program 1 times [2024-11-22 22:10:30,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:30,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63850828] [2024-11-22 22:10:30,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:30,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:10:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-22 22:10:30,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:10:30,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63850828] [2024-11-22 22:10:30,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63850828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:10:30,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987467032] [2024-11-22 22:10:30,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:10:30,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:30,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:30,513 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:30,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-22 22:10:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:10:30,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 22:10:30,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:30,821 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-22 22:10:30,822 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:10:31,111 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 130 proven. 3 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-22 22:10:31,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987467032] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:10:31,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:10:31,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 22 [2024-11-22 22:10:31,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525537383] [2024-11-22 22:10:31,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:10:31,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 22:10:31,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:10:31,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 22:10:31,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-11-22 22:10:31,112 INFO L87 Difference]: Start difference. First operand 1335 states and 1769 transitions. Second operand has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 20 states have internal predecessors, (84), 11 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-22 22:10:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:10:31,558 INFO L93 Difference]: Finished difference Result 2579 states and 3497 transitions. [2024-11-22 22:10:31,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 22:10:31,558 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 20 states have internal predecessors, (84), 11 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) Word has length 150 [2024-11-22 22:10:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:10:31,563 INFO L225 Difference]: With dead ends: 2579 [2024-11-22 22:10:31,563 INFO L226 Difference]: Without dead ends: 1354 [2024-11-22 22:10:31,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 284 SyntacticMatches, 10 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2024-11-22 22:10:31,567 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 68 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:10:31,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 677 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 22:10:31,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-11-22 22:10:31,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1332. [2024-11-22 22:10:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 1051 states have (on average 1.1684110371075167) internal successors, (1228), 1041 states have internal predecessors, (1228), 192 states have call successors, (192), 66 states have call predecessors, (192), 81 states have return successors, (321), 224 states have call predecessors, (321), 192 states have call successors, (321) [2024-11-22 22:10:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1741 transitions. [2024-11-22 22:10:31,629 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1741 transitions. Word has length 150 [2024-11-22 22:10:31,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:10:31,630 INFO L471 AbstractCegarLoop]: Abstraction has 1332 states and 1741 transitions. [2024-11-22 22:10:31,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 20 states have internal predecessors, (84), 11 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-22 22:10:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1741 transitions. [2024-11-22 22:10:31,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-22 22:10:31,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:10:31,631 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 9, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:10:31,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-22 22:10:31,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-22 22:10:31,832 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-22 22:10:31,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:10:31,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1209576437, now seen corresponding path program 5 times [2024-11-22 22:10:31,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:10:31,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122445554] [2024-11-22 22:10:31,832 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 22:10:31,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:10:31,850 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-11-22 22:10:31,851 INFO L228 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-22 22:10:31,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422642429] [2024-11-22 22:10:31,852 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 22:10:31,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:10:31,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:10:31,857 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:10:31,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-22 22:10:31,932 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-11-22 22:10:31,932 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 22:10:31,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-22 22:10:31,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:10:32,206 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 148 proven. 23 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-22 22:10:32,207 INFO L311 TraceCheckSpWp]: Computing backward predicates...