./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 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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 0.3.0-?-8fc3dc6-m [2025-03-17 14:48:29,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:48:29,400 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 14:48:29,404 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:48:29,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:48:29,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:48:29,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:48:29,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:48:29,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:48:29,423 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:48:29,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:48:29,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:48:29,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:48:29,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:48:29,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 14:48:29,425 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:48:29,426 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:48:29,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:48:29,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:48:29,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:48:29,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:48:29,427 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:48:29,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:48:29,427 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2025-03-17 14:48:29,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:48:29,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:48:29,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:48:29,639 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:48:29,640 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:48:29,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Binomial.c [2025-03-17 14:48:30,759 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da81a35fd/be9d19d36c5b447197f4f00ca1682613/FLAGc58204742 [2025-03-17 14:48:30,963 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:48:30,964 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Binomial.c [2025-03-17 14:48:30,970 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da81a35fd/be9d19d36c5b447197f4f00ca1682613/FLAGc58204742 [2025-03-17 14:48:30,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da81a35fd/be9d19d36c5b447197f4f00ca1682613 [2025-03-17 14:48:30,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:48:30,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:48:30,992 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:48:30,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:48:30,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:48:30,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:48:30" (1/1) ... [2025-03-17 14:48:30,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7d619f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:30, skipping insertion in model container [2025-03-17 14:48:30,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:48:30" (1/1) ... [2025-03-17 14:48:31,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:48:31,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:48:31,107 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:48:31,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:48:31,128 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:48:31,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31 WrapperNode [2025-03-17 14:48:31,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:48:31,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:48:31,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:48:31,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:48:31,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,147 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2025-03-17 14:48:31,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:48:31,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:48:31,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:48:31,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:48:31,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,159 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,164 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 14:48:31,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,169 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:48:31,172 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:48:31,172 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:48:31,172 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:48:31,174 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (1/1) ... [2025-03-17 14:48:31,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:48:31,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:31,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 14:48:31,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 14:48:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2025-03-17 14:48:31,249 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2025-03-17 14:48:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure binomialCoefficient [2025-03-17 14:48:31,250 INFO L138 BoogieDeclarations]: Found implementation of procedure binomialCoefficient [2025-03-17 14:48:31,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:48:31,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:48:31,284 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:48:31,286 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:48:31,444 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L30: havoc #t~ret1;havoc #t~ret2;havoc #t~ret3; [2025-03-17 14:48:31,524 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2025-03-17 14:48:31,525 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:48:31,536 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:48:31,536 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:48:31,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:48:31 BoogieIcfgContainer [2025-03-17 14:48:31,537 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:48:31,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:48:31,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:48:31,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:48:31,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:48:30" (1/3) ... [2025-03-17 14:48:31,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b27f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:48:31, skipping insertion in model container [2025-03-17 14:48:31,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:31" (2/3) ... [2025-03-17 14:48:31,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b27f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:48:31, skipping insertion in model container [2025-03-17 14:48:31,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:48:31" (3/3) ... [2025-03-17 14:48:31,545 INFO L128 eAbstractionObserver]: Analyzing ICFG Binomial.c [2025-03-17 14:48:31,556 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:48:31,558 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Binomial.c that has 3 procedures, 57 locations, 1 initial locations, 2 loop locations, and 14 error locations. [2025-03-17 14:48:31,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:48:31,607 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;@396cf8ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:48:31,607 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-03-17 14:48:31,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 34 states have (on average 1.588235294117647) internal successors, (54), 48 states have internal predecessors, (54), 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) [2025-03-17 14:48:31,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 14:48:31,615 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:31,616 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 14:48:31,616 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:31,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:31,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1485652582, now seen corresponding path program 1 times [2025-03-17 14:48:31,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581758181] [2025-03-17 14:48:31,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:31,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 14:48:31,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 14:48:31,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:31,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:31,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:31,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:31,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581758181] [2025-03-17 14:48:31,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581758181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:31,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:31,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:48:31,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017941126] [2025-03-17 14:48:31,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:31,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:31,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:31,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:31,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:31,802 INFO L87 Difference]: Start difference. First operand has 57 states, 34 states have (on average 1.588235294117647) internal successors, (54), 48 states have internal predecessors, (54), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:31,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:31,892 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2025-03-17 14:48:31,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:31,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-17 14:48:31,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:31,899 INFO L225 Difference]: With dead ends: 113 [2025-03-17 14:48:31,899 INFO L226 Difference]: Without dead ends: 55 [2025-03-17 14:48:31,902 INFO L434 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 [2025-03-17 14:48:31,904 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 23 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:31,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 151 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:31,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-03-17 14:48:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2025-03-17 14:48:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 46 states have internal predecessors, (50), 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) [2025-03-17 14:48:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2025-03-17 14:48:31,944 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 6 [2025-03-17 14:48:31,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:31,944 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2025-03-17 14:48:31,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:31,944 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2025-03-17 14:48:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 14:48:31,945 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:31,945 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:31,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:48:31,948 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:31,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1016144913, now seen corresponding path program 1 times [2025-03-17 14:48:31,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:31,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894198616] [2025-03-17 14:48:31,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:31,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:31,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 14:48:31,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 14:48:31,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:31,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:31,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:31,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894198616] [2025-03-17 14:48:31,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894198616] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:31,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:31,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:48:31,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088927819] [2025-03-17 14:48:31,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:31,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:48:31,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:32,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:48:32,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:48:32,000 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (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) [2025-03-17 14:48:32,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:32,025 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2025-03-17 14:48:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:48:32,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (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 12 [2025-03-17 14:48:32,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:32,027 INFO L225 Difference]: With dead ends: 55 [2025-03-17 14:48:32,027 INFO L226 Difference]: Without dead ends: 54 [2025-03-17 14:48:32,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:48:32,028 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:32,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 101 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:32,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-03-17 14:48:32,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2025-03-17 14:48:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 45 states have internal predecessors, (49), 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) [2025-03-17 14:48:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2025-03-17 14:48:32,035 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 12 [2025-03-17 14:48:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:32,035 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2025-03-17 14:48:32,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (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) [2025-03-17 14:48:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2025-03-17 14:48:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 14:48:32,036 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:32,036 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:32,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:48:32,036 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:32,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:32,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1435721208, now seen corresponding path program 1 times [2025-03-17 14:48:32,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:32,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153878297] [2025-03-17 14:48:32,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:32,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:32,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 14:48:32,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 14:48:32,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:32,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:32,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:32,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153878297] [2025-03-17 14:48:32,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153878297] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:32,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:32,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:48:32,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680460906] [2025-03-17 14:48:32,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:32,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:32,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:32,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:32,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:32,148 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2025-03-17 14:48:32,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:32,277 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2025-03-17 14:48:32,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:32,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 13 [2025-03-17 14:48:32,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:32,278 INFO L225 Difference]: With dead ends: 143 [2025-03-17 14:48:32,278 INFO L226 Difference]: Without dead ends: 92 [2025-03-17 14:48:32,279 INFO L434 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 [2025-03-17 14:48:32,279 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 42 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:32,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 346 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2025-03-17 14:48:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 84. [2025-03-17 14:48:32,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 68 states have internal predecessors, (82), 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) [2025-03-17 14:48:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 104 transitions. [2025-03-17 14:48:32,294 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 104 transitions. Word has length 13 [2025-03-17 14:48:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:32,295 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 104 transitions. [2025-03-17 14:48:32,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2025-03-17 14:48:32,295 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 104 transitions. [2025-03-17 14:48:32,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 14:48:32,295 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:32,295 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:32,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:48:32,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:32,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:32,296 INFO L85 PathProgramCache]: Analyzing trace with hash 658571609, now seen corresponding path program 1 times [2025-03-17 14:48:32,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:32,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200507798] [2025-03-17 14:48:32,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:32,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:32,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 14:48:32,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 14:48:32,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:32,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:32,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:32,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:32,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200507798] [2025-03-17 14:48:32,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200507798] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:32,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:32,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:48:32,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641286160] [2025-03-17 14:48:32,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:32,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:32,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:32,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:32,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:32,332 INFO L87 Difference]: Start difference. First operand 84 states and 104 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2025-03-17 14:48:32,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:32,380 INFO L93 Difference]: Finished difference Result 168 states and 207 transitions. [2025-03-17 14:48:32,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:48:32,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2025-03-17 14:48:32,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:32,381 INFO L225 Difference]: With dead ends: 168 [2025-03-17 14:48:32,381 INFO L226 Difference]: Without dead ends: 89 [2025-03-17 14:48:32,382 INFO L434 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 [2025-03-17 14:48:32,382 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 17 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:32,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 153 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-03-17 14:48:32,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2025-03-17 14:48:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 57 states have (on average 1.456140350877193) internal successors, (83), 69 states have internal predecessors, (83), 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) [2025-03-17 14:48:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 105 transitions. [2025-03-17 14:48:32,389 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 105 transitions. Word has length 13 [2025-03-17 14:48:32,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:32,390 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 105 transitions. [2025-03-17 14:48:32,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2025-03-17 14:48:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 105 transitions. [2025-03-17 14:48:32,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-17 14:48:32,390 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:32,390 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:32,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 14:48:32,390 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:32,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:32,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1700358127, now seen corresponding path program 1 times [2025-03-17 14:48:32,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:32,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276361149] [2025-03-17 14:48:32,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:32,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:32,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 14:48:32,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 14:48:32,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:32,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:32,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:32,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:32,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276361149] [2025-03-17 14:48:32,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276361149] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:32,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:32,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:48:32,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403725243] [2025-03-17 14:48:32,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:32,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:32,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:32,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:32,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:32,464 INFO L87 Difference]: Start difference. First operand 85 states and 105 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2025-03-17 14:48:32,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:32,553 INFO L93 Difference]: Finished difference Result 213 states and 271 transitions. [2025-03-17 14:48:32,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:32,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 19 [2025-03-17 14:48:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:32,554 INFO L225 Difference]: With dead ends: 213 [2025-03-17 14:48:32,554 INFO L226 Difference]: Without dead ends: 134 [2025-03-17 14:48:32,555 INFO L434 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 [2025-03-17 14:48:32,556 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 36 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:32,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 305 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2025-03-17 14:48:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 122. [2025-03-17 14:48:32,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 97 states have internal predecessors, (122), 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) [2025-03-17 14:48:32,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 160 transitions. [2025-03-17 14:48:32,566 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 160 transitions. Word has length 19 [2025-03-17 14:48:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:32,566 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 160 transitions. [2025-03-17 14:48:32,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2025-03-17 14:48:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 160 transitions. [2025-03-17 14:48:32,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 14:48:32,567 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:32,567 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:32,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 14:48:32,567 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting binomialCoefficientErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:32,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1966564703, now seen corresponding path program 1 times [2025-03-17 14:48:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:32,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003584323] [2025-03-17 14:48:32,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:32,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:32,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 14:48:32,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 14:48:32,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:32,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 14:48:32,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:32,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003584323] [2025-03-17 14:48:32,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003584323] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:32,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:32,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:32,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991217338] [2025-03-17 14:48:32,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:32,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:48:32,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:32,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:48:32,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:32,630 INFO L87 Difference]: Start difference. First operand 122 states and 160 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-17 14:48:32,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:32,709 INFO L93 Difference]: Finished difference Result 147 states and 185 transitions. [2025-03-17 14:48:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:32,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 21 [2025-03-17 14:48:32,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:32,712 INFO L225 Difference]: With dead ends: 147 [2025-03-17 14:48:32,712 INFO L226 Difference]: Without dead ends: 146 [2025-03-17 14:48:32,712 INFO L434 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 [2025-03-17 14:48:32,713 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:32,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 238 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2025-03-17 14:48:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2025-03-17 14:48:32,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 94 states have (on average 1.4361702127659575) internal successors, (135), 108 states have internal predecessors, (135), 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) [2025-03-17 14:48:32,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 179 transitions. [2025-03-17 14:48:32,747 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 179 transitions. Word has length 21 [2025-03-17 14:48:32,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:32,747 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 179 transitions. [2025-03-17 14:48:32,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2025-03-17 14:48:32,747 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 179 transitions. [2025-03-17 14:48:32,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-17 14:48:32,747 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:32,747 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:32,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 14:48:32,748 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:32,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:32,748 INFO L85 PathProgramCache]: Analyzing trace with hash -833963654, now seen corresponding path program 1 times [2025-03-17 14:48:32,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:32,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051771343] [2025-03-17 14:48:32,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:32,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:32,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:48:32,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:48:32,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:32,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 14:48:32,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:32,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051771343] [2025-03-17 14:48:32,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051771343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:32,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:32,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446631901] [2025-03-17 14:48:32,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:32,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:48:32,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:32,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:48:32,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:32,830 INFO L87 Difference]: Start difference. First operand 137 states and 179 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) [2025-03-17 14:48:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:32,895 INFO L93 Difference]: Finished difference Result 147 states and 182 transitions. [2025-03-17 14:48:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:32,895 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 [2025-03-17 14:48:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:32,896 INFO L225 Difference]: With dead ends: 147 [2025-03-17 14:48:32,896 INFO L226 Difference]: Without dead ends: 146 [2025-03-17 14:48:32,897 INFO L434 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 [2025-03-17 14:48:32,897 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 44 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:32,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 243 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:32,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2025-03-17 14:48:32,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2025-03-17 14:48:32,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 94 states have (on average 1.425531914893617) internal successors, (134), 108 states have internal predecessors, (134), 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) [2025-03-17 14:48:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 178 transitions. [2025-03-17 14:48:32,913 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 178 transitions. Word has length 22 [2025-03-17 14:48:32,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:32,914 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 178 transitions. [2025-03-17 14:48:32,915 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) [2025-03-17 14:48:32,915 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 178 transitions. [2025-03-17 14:48:32,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-17 14:48:32,915 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:32,915 INFO L218 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] [2025-03-17 14:48:32,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 14:48:32,916 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:32,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:32,917 INFO L85 PathProgramCache]: Analyzing trace with hash 315440842, now seen corresponding path program 1 times [2025-03-17 14:48:32,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:32,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554902324] [2025-03-17 14:48:32,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:32,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:32,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-17 14:48:32,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-17 14:48:32,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:32,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 14:48:33,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:33,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554902324] [2025-03-17 14:48:33,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554902324] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:33,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:33,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 14:48:33,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992881199] [2025-03-17 14:48:33,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:33,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 14:48:33,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:33,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 14:48:33,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:48:33,004 INFO L87 Difference]: Start difference. First operand 137 states and 178 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2025-03-17 14:48:33,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:33,118 INFO L93 Difference]: Finished difference Result 272 states and 346 transitions. [2025-03-17 14:48:33,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 14:48:33,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 27 [2025-03-17 14:48:33,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:33,121 INFO L225 Difference]: With dead ends: 272 [2025-03-17 14:48:33,121 INFO L226 Difference]: Without dead ends: 150 [2025-03-17 14:48:33,122 INFO L434 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 [2025-03-17 14:48:33,123 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 45 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:33,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 336 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2025-03-17 14:48:33,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 141. [2025-03-17 14:48:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 111 states have internal predecessors, (137), 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) [2025-03-17 14:48:33,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 181 transitions. [2025-03-17 14:48:33,136 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 181 transitions. Word has length 27 [2025-03-17 14:48:33,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:33,136 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 181 transitions. [2025-03-17 14:48:33,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2025-03-17 14:48:33,136 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 181 transitions. [2025-03-17 14:48:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-17 14:48:33,137 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:33,137 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:33,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 14:48:33,137 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:33,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1814008104, now seen corresponding path program 1 times [2025-03-17 14:48:33,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:33,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470350105] [2025-03-17 14:48:33,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:33,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:33,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 14:48:33,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 14:48:33,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:33,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:33,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1385401915] [2025-03-17 14:48:33,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:33,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:33,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:33,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:33,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 14:48:33,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 14:48:33,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 14:48:33,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:33,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:33,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:48:33,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 14:48:33,241 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:33,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:33,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470350105] [2025-03-17 14:48:33,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:33,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385401915] [2025-03-17 14:48:33,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385401915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:33,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:33,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:48:33,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68609884] [2025-03-17 14:48:33,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:33,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:48:33,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:33,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:48:33,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:48:33,244 INFO L87 Difference]: Start difference. First operand 141 states and 181 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2025-03-17 14:48:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:33,286 INFO L93 Difference]: Finished difference Result 193 states and 278 transitions. [2025-03-17 14:48:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:48:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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 29 [2025-03-17 14:48:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:33,288 INFO L225 Difference]: With dead ends: 193 [2025-03-17 14:48:33,289 INFO L226 Difference]: Without dead ends: 192 [2025-03-17 14:48:33,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:48:33,290 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 12 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 153 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 [2025-03-17 14:48:33,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 153 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:33,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2025-03-17 14:48:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 163. [2025-03-17 14:48:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 115 states have (on average 1.373913043478261) internal successors, (158), 126 states have internal predecessors, (158), 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) [2025-03-17 14:48:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 222 transitions. [2025-03-17 14:48:33,310 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 222 transitions. Word has length 29 [2025-03-17 14:48:33,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:33,310 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 222 transitions. [2025-03-17 14:48:33,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 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) [2025-03-17 14:48:33,310 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 222 transitions. [2025-03-17 14:48:33,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 14:48:33,311 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:33,311 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:33,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 14:48:33,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:33,518 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:33,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:33,518 INFO L85 PathProgramCache]: Analyzing trace with hash -399676387, now seen corresponding path program 1 times [2025-03-17 14:48:33,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:33,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936293482] [2025-03-17 14:48:33,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:33,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:33,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 14:48:33,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 14:48:33,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:33,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:33,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207198633] [2025-03-17 14:48:33,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:33,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:33,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:33,529 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:33,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:48:33,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 14:48:33,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 14:48:33,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:33,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:33,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 14:48:33,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:33,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 14:48:33,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:33,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:33,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936293482] [2025-03-17 14:48:33,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:33,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207198633] [2025-03-17 14:48:33,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207198633] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:33,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:33,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:33,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321624762] [2025-03-17 14:48:33,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:33,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:48:33,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:33,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:48:33,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:33,617 INFO L87 Difference]: Start difference. First operand 163 states and 222 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2025-03-17 14:48:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:33,656 INFO L93 Difference]: Finished difference Result 193 states and 273 transitions. [2025-03-17 14:48:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:48:33,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 30 [2025-03-17 14:48:33,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:33,658 INFO L225 Difference]: With dead ends: 193 [2025-03-17 14:48:33,658 INFO L226 Difference]: Without dead ends: 192 [2025-03-17 14:48:33,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:33,659 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 10 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 153 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 [2025-03-17 14:48:33,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 153 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:33,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2025-03-17 14:48:33,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 167. [2025-03-17 14:48:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 119 states have (on average 1.3529411764705883) internal successors, (161), 130 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) [2025-03-17 14:48:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2025-03-17 14:48:33,675 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 225 transitions. Word has length 30 [2025-03-17 14:48:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:33,675 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 225 transitions. [2025-03-17 14:48:33,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2025-03-17 14:48:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 225 transitions. [2025-03-17 14:48:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-17 14:48:33,676 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:33,676 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:33,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:33,877 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,SelfDestructingSolverStorable9 [2025-03-17 14:48:33,877 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:33,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:33,878 INFO L85 PathProgramCache]: Analyzing trace with hash 494933878, now seen corresponding path program 1 times [2025-03-17 14:48:33,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:33,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519516348] [2025-03-17 14:48:33,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:33,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:33,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 14:48:33,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 14:48:33,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:33,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:33,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801931812] [2025-03-17 14:48:33,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:33,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:33,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:33,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:33,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 14:48:33,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 14:48:33,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 14:48:33,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:33,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:33,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:48:33,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:34,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:34,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:34,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519516348] [2025-03-17 14:48:34,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:34,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801931812] [2025-03-17 14:48:34,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801931812] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:34,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:34,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:48:34,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807394889] [2025-03-17 14:48:34,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:34,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:34,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:34,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:34,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:34,028 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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) [2025-03-17 14:48:34,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:34,102 INFO L93 Difference]: Finished difference Result 247 states and 352 transitions. [2025-03-17 14:48:34,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:34,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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 31 [2025-03-17 14:48:34,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:34,104 INFO L225 Difference]: With dead ends: 247 [2025-03-17 14:48:34,104 INFO L226 Difference]: Without dead ends: 246 [2025-03-17 14:48:34,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:34,105 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 28 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:34,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 162 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:34,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2025-03-17 14:48:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 198. [2025-03-17 14:48:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 144 states have (on average 1.3125) internal successors, (189), 152 states have internal predecessors, (189), 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) [2025-03-17 14:48:34,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 270 transitions. [2025-03-17 14:48:34,121 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 270 transitions. Word has length 31 [2025-03-17 14:48:34,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:34,121 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 270 transitions. [2025-03-17 14:48:34,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 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) [2025-03-17 14:48:34,121 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 270 transitions. [2025-03-17 14:48:34,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 14:48:34,122 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:34,122 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:34,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 14:48:34,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:34,325 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting binomialCoefficientErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:34,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:34,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1836918981, now seen corresponding path program 1 times [2025-03-17 14:48:34,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:34,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295324329] [2025-03-17 14:48:34,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:34,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:34,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 14:48:34,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 14:48:34,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:34,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:34,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900599541] [2025-03-17 14:48:34,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:34,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:34,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:34,340 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:34,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 14:48:34,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-17 14:48:34,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 14:48:34,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:34,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:34,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 14:48:34,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:34,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 14:48:34,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:34,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:34,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295324329] [2025-03-17 14:48:34,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:34,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900599541] [2025-03-17 14:48:34,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900599541] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:34,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:34,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-17 14:48:34,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575074994] [2025-03-17 14:48:34,955 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:34,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:34,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:34,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:48:34,957 INFO L87 Difference]: Start difference. First operand 198 states and 270 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 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) [2025-03-17 14:48:35,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:35,036 INFO L93 Difference]: Finished difference Result 247 states and 347 transitions. [2025-03-17 14:48:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:48:35,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 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 32 [2025-03-17 14:48:35,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:35,042 INFO L225 Difference]: With dead ends: 247 [2025-03-17 14:48:35,042 INFO L226 Difference]: Without dead ends: 246 [2025-03-17 14:48:35,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:48:35,043 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 19 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:35,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 261 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2025-03-17 14:48:35,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 202. [2025-03-17 14:48:35,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 148 states have (on average 1.2972972972972974) internal successors, (192), 156 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) [2025-03-17 14:48:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 273 transitions. [2025-03-17 14:48:35,059 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 273 transitions. Word has length 32 [2025-03-17 14:48:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:35,059 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 273 transitions. [2025-03-17 14:48:35,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 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) [2025-03-17 14:48:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 273 transitions. [2025-03-17 14:48:35,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-17 14:48:35,060 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:35,061 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:35,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:35,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:35,262 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:35,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:35,263 INFO L85 PathProgramCache]: Analyzing trace with hash -173605238, now seen corresponding path program 1 times [2025-03-17 14:48:35,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:35,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181147247] [2025-03-17 14:48:35,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:35,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 14:48:35,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 14:48:35,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:35,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:35,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:35,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:35,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181147247] [2025-03-17 14:48:35,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181147247] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:35,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:35,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:35,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530060026] [2025-03-17 14:48:35,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:35,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:35,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:35,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:35,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:35,308 INFO L87 Difference]: Start difference. First operand 202 states and 273 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2025-03-17 14:48:35,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:35,327 INFO L93 Difference]: Finished difference Result 202 states and 273 transitions. [2025-03-17 14:48:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:35,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 37 [2025-03-17 14:48:35,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:35,329 INFO L225 Difference]: With dead ends: 202 [2025-03-17 14:48:35,329 INFO L226 Difference]: Without dead ends: 201 [2025-03-17 14:48:35,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:35,330 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 3 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:35,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 146 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:35,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-03-17 14:48:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2025-03-17 14:48:35,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 148 states have (on average 1.2837837837837838) internal successors, (190), 155 states have internal predecessors, (190), 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) [2025-03-17 14:48:35,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 271 transitions. [2025-03-17 14:48:35,342 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 271 transitions. Word has length 37 [2025-03-17 14:48:35,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:35,342 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 271 transitions. [2025-03-17 14:48:35,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2025-03-17 14:48:35,342 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 271 transitions. [2025-03-17 14:48:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-17 14:48:35,344 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:35,345 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:35,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 14:48:35,345 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:35,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1086795070, now seen corresponding path program 1 times [2025-03-17 14:48:35,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:35,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073444720] [2025-03-17 14:48:35,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:35,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 14:48:35,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 14:48:35,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:35,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:35,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:35,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073444720] [2025-03-17 14:48:35,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073444720] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:35,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:35,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:35,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322466529] [2025-03-17 14:48:35,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:35,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:35,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:35,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:35,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:35,388 INFO L87 Difference]: Start difference. First operand 201 states and 271 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) [2025-03-17 14:48:35,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:35,409 INFO L93 Difference]: Finished difference Result 212 states and 284 transitions. [2025-03-17 14:48:35,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:35,410 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 [2025-03-17 14:48:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:35,411 INFO L225 Difference]: With dead ends: 212 [2025-03-17 14:48:35,411 INFO L226 Difference]: Without dead ends: 211 [2025-03-17 14:48:35,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:35,412 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:35,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 163 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:35,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2025-03-17 14:48:35,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2025-03-17 14:48:35,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 157 states have (on average 1.267515923566879) internal successors, (199), 162 states have internal predecessors, (199), 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) [2025-03-17 14:48:35,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2025-03-17 14:48:35,421 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 38 [2025-03-17 14:48:35,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:35,422 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2025-03-17 14:48:35,422 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) [2025-03-17 14:48:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2025-03-17 14:48:35,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-17 14:48:35,422 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:35,422 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:35,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 14:48:35,423 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:35,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:35,423 INFO L85 PathProgramCache]: Analyzing trace with hash -733008992, now seen corresponding path program 1 times [2025-03-17 14:48:35,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:35,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410342983] [2025-03-17 14:48:35,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:35,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:35,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-17 14:48:35,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 14:48:35,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:35,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 14:48:35,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:35,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410342983] [2025-03-17 14:48:35,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410342983] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:35,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:35,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:35,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192471879] [2025-03-17 14:48:35,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:35,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:35,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:35,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:35,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:35,459 INFO L87 Difference]: Start difference. First operand 211 states and 282 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-17 14:48:35,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:35,474 INFO L93 Difference]: Finished difference Result 211 states and 282 transitions. [2025-03-17 14:48:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:35,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 40 [2025-03-17 14:48:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:35,476 INFO L225 Difference]: With dead ends: 211 [2025-03-17 14:48:35,477 INFO L226 Difference]: Without dead ends: 210 [2025-03-17 14:48:35,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:35,478 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 4 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 141 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 [2025-03-17 14:48:35,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 141 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2025-03-17 14:48:35,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2025-03-17 14:48:35,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 157 states have (on average 1.2611464968152866) internal successors, (198), 161 states have internal predecessors, (198), 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) [2025-03-17 14:48:35,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 281 transitions. [2025-03-17 14:48:35,491 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 281 transitions. Word has length 40 [2025-03-17 14:48:35,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:35,491 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 281 transitions. [2025-03-17 14:48:35,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-17 14:48:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 281 transitions. [2025-03-17 14:48:35,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-17 14:48:35,492 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:35,492 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:35,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 14:48:35,492 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:35,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:35,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1248442265, now seen corresponding path program 1 times [2025-03-17 14:48:35,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:35,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251068612] [2025-03-17 14:48:35,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:35,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:35,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 14:48:35,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 14:48:35,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:35,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:35,549 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 14:48:35,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:35,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251068612] [2025-03-17 14:48:35,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251068612] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:35,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:35,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:35,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540965812] [2025-03-17 14:48:35,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:35,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:35,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:35,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:35,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:35,550 INFO L87 Difference]: Start difference. First operand 210 states and 281 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-17 14:48:35,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:35,570 INFO L93 Difference]: Finished difference Result 214 states and 284 transitions. [2025-03-17 14:48:35,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:35,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 41 [2025-03-17 14:48:35,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:35,573 INFO L225 Difference]: With dead ends: 214 [2025-03-17 14:48:35,573 INFO L226 Difference]: Without dead ends: 213 [2025-03-17 14:48:35,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:35,574 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 3 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 156 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 [2025-03-17 14:48:35,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 156 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:35,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2025-03-17 14:48:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 212. [2025-03-17 14:48:35,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 159 states have (on average 1.2578616352201257) internal successors, (200), 163 states have internal predecessors, (200), 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) [2025-03-17 14:48:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 283 transitions. [2025-03-17 14:48:35,584 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 283 transitions. Word has length 41 [2025-03-17 14:48:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:35,584 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 283 transitions. [2025-03-17 14:48:35,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-17 14:48:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 283 transitions. [2025-03-17 14:48:35,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-17 14:48:35,585 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:35,586 INFO L218 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] [2025-03-17 14:48:35,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 14:48:35,586 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:35,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:35,586 INFO L85 PathProgramCache]: Analyzing trace with hash 997449875, now seen corresponding path program 1 times [2025-03-17 14:48:35,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:35,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590620738] [2025-03-17 14:48:35,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:35,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:35,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-17 14:48:35,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-17 14:48:35,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:35,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:35,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:35,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590620738] [2025-03-17 14:48:35,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590620738] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:35,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681752905] [2025-03-17 14:48:35,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:35,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:35,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:35,672 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:35,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 14:48:35,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-17 14:48:35,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-17 14:48:35,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:35,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:35,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:48:35,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:35,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:35,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681752905] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:35,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:35,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-03-17 14:48:35,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314573877] [2025-03-17 14:48:35,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:35,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 14:48:35,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:35,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 14:48:35,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2025-03-17 14:48:35,833 INFO L87 Difference]: Start difference. First operand 212 states and 283 transitions. Second operand has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 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) [2025-03-17 14:48:36,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:36,060 INFO L93 Difference]: Finished difference Result 299 states and 391 transitions. [2025-03-17 14:48:36,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 14:48:36,061 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 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 47 [2025-03-17 14:48:36,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:36,062 INFO L225 Difference]: With dead ends: 299 [2025-03-17 14:48:36,062 INFO L226 Difference]: Without dead ends: 298 [2025-03-17 14:48:36,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2025-03-17 14:48:36,063 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 109 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:36,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 571 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:36,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2025-03-17 14:48:36,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 275. [2025-03-17 14:48:36,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 207 states have (on average 1.2946859903381642) internal successors, (268), 213 states have internal predecessors, (268), 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) [2025-03-17 14:48:36,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 379 transitions. [2025-03-17 14:48:36,074 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 379 transitions. Word has length 47 [2025-03-17 14:48:36,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:36,075 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 379 transitions. [2025-03-17 14:48:36,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 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) [2025-03-17 14:48:36,075 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 379 transitions. [2025-03-17 14:48:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-17 14:48:36,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:36,075 INFO L218 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] [2025-03-17 14:48:36,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:36,276 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,SelfDestructingSolverStorable16 [2025-03-17 14:48:36,276 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:36,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:36,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2127422531, now seen corresponding path program 1 times [2025-03-17 14:48:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:36,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684944187] [2025-03-17 14:48:36,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:36,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:36,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 14:48:36,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 14:48:36,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:36,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:36,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:36,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684944187] [2025-03-17 14:48:36,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684944187] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:36,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070714640] [2025-03-17 14:48:36,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:36,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:36,353 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:36,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 14:48:36,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 14:48:36,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 14:48:36,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:36,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:36,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:48:36,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:36,472 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:36,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070714640] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:36,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:36,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2025-03-17 14:48:36,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744560700] [2025-03-17 14:48:36,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:36,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 14:48:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:36,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 14:48:36,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-17 14:48:36,535 INFO L87 Difference]: Start difference. First operand 275 states and 379 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2025-03-17 14:48:36,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:36,663 INFO L93 Difference]: Finished difference Result 514 states and 713 transitions. [2025-03-17 14:48:36,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 14:48:36,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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 51 [2025-03-17 14:48:36,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:36,665 INFO L225 Difference]: With dead ends: 514 [2025-03-17 14:48:36,665 INFO L226 Difference]: Without dead ends: 305 [2025-03-17 14:48:36,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 91 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2025-03-17 14:48:36,666 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 22 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:36,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 394 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2025-03-17 14:48:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 289. [2025-03-17 14:48:36,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 221 states have (on average 1.2895927601809956) internal successors, (285), 227 states have internal predecessors, (285), 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) [2025-03-17 14:48:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 396 transitions. [2025-03-17 14:48:36,678 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 396 transitions. Word has length 51 [2025-03-17 14:48:36,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:36,678 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 396 transitions. [2025-03-17 14:48:36,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 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) [2025-03-17 14:48:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 396 transitions. [2025-03-17 14:48:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-17 14:48:36,679 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:36,679 INFO L218 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] [2025-03-17 14:48:36,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:36,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 14:48:36,887 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:36,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:36,887 INFO L85 PathProgramCache]: Analyzing trace with hash -887118901, now seen corresponding path program 1 times [2025-03-17 14:48:36,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:36,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510636287] [2025-03-17 14:48:36,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:36,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:36,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 14:48:36,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 14:48:36,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:36,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 14:48:36,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:36,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510636287] [2025-03-17 14:48:36,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510636287] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:36,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:36,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:48:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989418788] [2025-03-17 14:48:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:36,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:48:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:36,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:48:36,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:36,951 INFO L87 Difference]: Start difference. First operand 289 states and 396 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2025-03-17 14:48:37,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:37,015 INFO L93 Difference]: Finished difference Result 518 states and 715 transitions. [2025-03-17 14:48:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:48:37,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 53 [2025-03-17 14:48:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:37,016 INFO L225 Difference]: With dead ends: 518 [2025-03-17 14:48:37,016 INFO L226 Difference]: Without dead ends: 262 [2025-03-17 14:48:37,017 INFO L434 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 [2025-03-17 14:48:37,018 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 13 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:37,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 230 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:37,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2025-03-17 14:48:37,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 261. [2025-03-17 14:48:37,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 199 states have (on average 1.2763819095477387) internal successors, (254), 206 states have internal predecessors, (254), 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) [2025-03-17 14:48:37,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 352 transitions. [2025-03-17 14:48:37,028 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 352 transitions. Word has length 53 [2025-03-17 14:48:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:37,028 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 352 transitions. [2025-03-17 14:48:37,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2025-03-17 14:48:37,030 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 352 transitions. [2025-03-17 14:48:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-17 14:48:37,030 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:37,030 INFO L218 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] [2025-03-17 14:48:37,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 14:48:37,030 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:37,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:37,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1979483540, now seen corresponding path program 2 times [2025-03-17 14:48:37,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:37,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144723098] [2025-03-17 14:48:37,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:37,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:37,035 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-17 14:48:37,039 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 14:48:37,039 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:37,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-03-17 14:48:37,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:37,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144723098] [2025-03-17 14:48:37,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144723098] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:37,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:37,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 14:48:37,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312040161] [2025-03-17 14:48:37,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:37,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 14:48:37,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:37,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 14:48:37,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:48:37,096 INFO L87 Difference]: Start difference. First operand 261 states and 352 transitions. Second operand has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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) [2025-03-17 14:48:37,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:37,235 INFO L93 Difference]: Finished difference Result 536 states and 741 transitions. [2025-03-17 14:48:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:48:37,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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 53 [2025-03-17 14:48:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:37,237 INFO L225 Difference]: With dead ends: 536 [2025-03-17 14:48:37,237 INFO L226 Difference]: Without dead ends: 312 [2025-03-17 14:48:37,238 INFO L434 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 [2025-03-17 14:48:37,238 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 40 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:37,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 302 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2025-03-17 14:48:37,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 305. [2025-03-17 14:48:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 233 states have (on average 1.3047210300429184) internal successors, (304), 238 states have internal predecessors, (304), 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) [2025-03-17 14:48:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 424 transitions. [2025-03-17 14:48:37,253 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 424 transitions. Word has length 53 [2025-03-17 14:48:37,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:37,253 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 424 transitions. [2025-03-17 14:48:37,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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) [2025-03-17 14:48:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 424 transitions. [2025-03-17 14:48:37,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-17 14:48:37,254 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:37,254 INFO L218 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] [2025-03-17 14:48:37,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 14:48:37,254 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:37,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:37,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1080145573, now seen corresponding path program 1 times [2025-03-17 14:48:37,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:37,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751560620] [2025-03-17 14:48:37,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:37,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:37,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 14:48:37,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 14:48:37,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:37,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:37,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117224266] [2025-03-17 14:48:37,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:37,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:37,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:37,264 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:37,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 14:48:37,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 14:48:37,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 14:48:37,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:37,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:37,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:48:37,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-17 14:48:37,338 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:37,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:37,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751560620] [2025-03-17 14:48:37,338 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:37,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117224266] [2025-03-17 14:48:37,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117224266] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:37,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:37,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81659462] [2025-03-17 14:48:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:37,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:48:37,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:37,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:48:37,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:37,340 INFO L87 Difference]: Start difference. First operand 305 states and 424 transitions. Second operand has 6 states, 4 states have (on average 8.0) internal successors, (32), 6 states have internal predecessors, (32), 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) [2025-03-17 14:48:37,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:37,363 INFO L93 Difference]: Finished difference Result 305 states and 424 transitions. [2025-03-17 14:48:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:48:37,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.0) internal successors, (32), 6 states have internal predecessors, (32), 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 54 [2025-03-17 14:48:37,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:37,365 INFO L225 Difference]: With dead ends: 305 [2025-03-17 14:48:37,365 INFO L226 Difference]: Without dead ends: 304 [2025-03-17 14:48:37,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:37,366 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 2 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:37,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 190 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:37,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2025-03-17 14:48:37,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2025-03-17 14:48:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 233 states have (on average 1.2918454935622317) internal successors, (301), 237 states have internal predecessors, (301), 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) [2025-03-17 14:48:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 421 transitions. [2025-03-17 14:48:37,379 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 421 transitions. Word has length 54 [2025-03-17 14:48:37,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:37,380 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 421 transitions. [2025-03-17 14:48:37,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.0) internal successors, (32), 6 states have internal predecessors, (32), 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) [2025-03-17 14:48:37,380 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 421 transitions. [2025-03-17 14:48:37,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-17 14:48:37,380 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:37,380 INFO L218 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] [2025-03-17 14:48:37,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 14:48:37,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:37,581 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:37,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:37,582 INFO L85 PathProgramCache]: Analyzing trace with hash 875225576, now seen corresponding path program 1 times [2025-03-17 14:48:37,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:37,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087144822] [2025-03-17 14:48:37,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:37,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-17 14:48:37,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-17 14:48:37,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:37,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:37,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2122939266] [2025-03-17 14:48:37,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:37,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:37,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:37,592 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:37,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 14:48:37,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-17 14:48:37,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-17 14:48:37,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:37,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:37,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:48:37,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:37,741 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 14:48:37,741 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:37,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:37,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087144822] [2025-03-17 14:48:37,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:37,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122939266] [2025-03-17 14:48:37,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122939266] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:37,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:37,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-17 14:48:37,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541414792] [2025-03-17 14:48:37,862 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:37,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 14:48:37,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:37,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 14:48:37,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-03-17 14:48:37,863 INFO L87 Difference]: Start difference. First operand 304 states and 421 transitions. Second operand has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2025-03-17 14:48:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:38,132 INFO L93 Difference]: Finished difference Result 326 states and 439 transitions. [2025-03-17 14:48:38,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 14:48:38,132 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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 55 [2025-03-17 14:48:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:38,134 INFO L225 Difference]: With dead ends: 326 [2025-03-17 14:48:38,134 INFO L226 Difference]: Without dead ends: 325 [2025-03-17 14:48:38,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2025-03-17 14:48:38,136 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 62 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:38,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 364 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:38,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-03-17 14:48:38,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 304. [2025-03-17 14:48:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 233 states have (on average 1.2875536480686696) internal successors, (300), 237 states have internal predecessors, (300), 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) [2025-03-17 14:48:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 420 transitions. [2025-03-17 14:48:38,150 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 420 transitions. Word has length 55 [2025-03-17 14:48:38,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:38,150 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 420 transitions. [2025-03-17 14:48:38,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2025-03-17 14:48:38,150 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 420 transitions. [2025-03-17 14:48:38,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-17 14:48:38,150 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:38,151 INFO L218 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] [2025-03-17 14:48:38,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 14:48:38,351 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,SelfDestructingSolverStorable21 [2025-03-17 14:48:38,351 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:38,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash 592105962, now seen corresponding path program 1 times [2025-03-17 14:48:38,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:38,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631747858] [2025-03-17 14:48:38,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:38,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:38,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-17 14:48:38,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-17 14:48:38,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:38,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:38,415 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-03-17 14:48:38,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:38,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631747858] [2025-03-17 14:48:38,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631747858] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:38,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:38,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:48:38,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67434570] [2025-03-17 14:48:38,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:38,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:38,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:38,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:38,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:38,416 INFO L87 Difference]: Start difference. First operand 304 states and 420 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2025-03-17 14:48:38,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:38,499 INFO L93 Difference]: Finished difference Result 563 states and 773 transitions. [2025-03-17 14:48:38,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:38,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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 63 [2025-03-17 14:48:38,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:38,501 INFO L225 Difference]: With dead ends: 563 [2025-03-17 14:48:38,501 INFO L226 Difference]: Without dead ends: 307 [2025-03-17 14:48:38,502 INFO L434 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 [2025-03-17 14:48:38,502 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 35 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 340 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 [2025-03-17 14:48:38,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 340 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:38,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2025-03-17 14:48:38,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 300. [2025-03-17 14:48:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 230 states have (on average 1.2739130434782608) internal successors, (293), 234 states have internal predecessors, (293), 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) [2025-03-17 14:48:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 405 transitions. [2025-03-17 14:48:38,514 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 405 transitions. Word has length 63 [2025-03-17 14:48:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:38,514 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 405 transitions. [2025-03-17 14:48:38,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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) [2025-03-17 14:48:38,514 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 405 transitions. [2025-03-17 14:48:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-17 14:48:38,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:38,515 INFO L218 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] [2025-03-17 14:48:38,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-17 14:48:38,515 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting binomialCoefficientErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:38,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:38,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2068169274, now seen corresponding path program 1 times [2025-03-17 14:48:38,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:38,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122999436] [2025-03-17 14:48:38,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:38,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:38,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-17 14:48:38,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-17 14:48:38,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:38,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 14:48:38,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:38,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122999436] [2025-03-17 14:48:38,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122999436] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:38,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:38,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 14:48:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748060747] [2025-03-17 14:48:38,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:38,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 14:48:38,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:38,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 14:48:38,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:48:38,607 INFO L87 Difference]: Start difference. First operand 300 states and 405 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2025-03-17 14:48:38,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:38,694 INFO L93 Difference]: Finished difference Result 306 states and 405 transitions. [2025-03-17 14:48:38,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 14:48:38,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 65 [2025-03-17 14:48:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:38,696 INFO L225 Difference]: With dead ends: 306 [2025-03-17 14:48:38,696 INFO L226 Difference]: Without dead ends: 305 [2025-03-17 14:48:38,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:48:38,696 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 42 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:38,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 322 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2025-03-17 14:48:38,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 299. [2025-03-17 14:48:38,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 230 states have (on average 1.2391304347826086) internal successors, (285), 233 states have internal predecessors, (285), 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) [2025-03-17 14:48:38,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 397 transitions. [2025-03-17 14:48:38,709 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 397 transitions. Word has length 65 [2025-03-17 14:48:38,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:38,709 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 397 transitions. [2025-03-17 14:48:38,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2025-03-17 14:48:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 397 transitions. [2025-03-17 14:48:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-17 14:48:38,710 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:38,710 INFO L218 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] [2025-03-17 14:48:38,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-17 14:48:38,710 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:38,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:38,710 INFO L85 PathProgramCache]: Analyzing trace with hash -311261951, now seen corresponding path program 1 times [2025-03-17 14:48:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:38,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070112480] [2025-03-17 14:48:38,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:38,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-17 14:48:38,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-17 14:48:38,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:38,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 14:48:38,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:38,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070112480] [2025-03-17 14:48:38,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070112480] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:38,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382724016] [2025-03-17 14:48:38,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:38,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:38,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:38,788 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:38,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 14:48:38,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-17 14:48:38,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-17 14:48:38,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:38,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:38,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 14:48:38,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 14:48:38,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 14:48:39,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382724016] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:39,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:39,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2025-03-17 14:48:39,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775694857] [2025-03-17 14:48:39,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:39,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-17 14:48:39,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:39,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-17 14:48:39,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2025-03-17 14:48:39,017 INFO L87 Difference]: Start difference. First operand 299 states and 397 transitions. Second operand has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 16 states have internal predecessors, (66), 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) [2025-03-17 14:48:39,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:39,229 INFO L93 Difference]: Finished difference Result 427 states and 571 transitions. [2025-03-17 14:48:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 14:48:39,231 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 16 states have internal predecessors, (66), 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 66 [2025-03-17 14:48:39,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:39,233 INFO L225 Difference]: With dead ends: 427 [2025-03-17 14:48:39,233 INFO L226 Difference]: Without dead ends: 426 [2025-03-17 14:48:39,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:48:39,233 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 119 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:39,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 643 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2025-03-17 14:48:39,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 407. [2025-03-17 14:48:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 314 states have (on average 1.213375796178344) internal successors, (381), 313 states have internal predecessors, (381), 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) [2025-03-17 14:48:39,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 553 transitions. [2025-03-17 14:48:39,253 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 553 transitions. Word has length 66 [2025-03-17 14:48:39,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:39,253 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 553 transitions. [2025-03-17 14:48:39,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.6666666666666665) internal successors, (66), 16 states have internal predecessors, (66), 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) [2025-03-17 14:48:39,254 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 553 transitions. [2025-03-17 14:48:39,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-17 14:48:39,254 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:39,254 INFO L218 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] [2025-03-17 14:48:39,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 14:48:39,459 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,SelfDestructingSolverStorable24 [2025-03-17 14:48:39,459 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:39,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1574269021, now seen corresponding path program 2 times [2025-03-17 14:48:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909258704] [2025-03-17 14:48:39,459 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:39,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:39,463 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-03-17 14:48:39,467 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 14:48:39,467 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:39,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 14:48:39,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:39,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909258704] [2025-03-17 14:48:39,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909258704] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:39,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754196566] [2025-03-17 14:48:39,562 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:39,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:39,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:39,564 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:39,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 14:48:39,587 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-03-17 14:48:39,601 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-03-17 14:48:39,602 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:39,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:39,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 14:48:39,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-17 14:48:39,724 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-17 14:48:39,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754196566] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:39,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:39,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2025-03-17 14:48:39,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715081197] [2025-03-17 14:48:39,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:39,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 14:48:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:39,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 14:48:39,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:48:39,872 INFO L87 Difference]: Start difference. First operand 407 states and 553 transitions. Second operand has 24 states, 23 states have (on average 3.608695652173913) internal successors, (83), 18 states have internal predecessors, (83), 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) [2025-03-17 14:48:40,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:40,367 INFO L93 Difference]: Finished difference Result 498 states and 641 transitions. [2025-03-17 14:48:40,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-17 14:48:40,367 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.608695652173913) internal successors, (83), 18 states have internal predecessors, (83), 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 71 [2025-03-17 14:48:40,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:40,369 INFO L225 Difference]: With dead ends: 498 [2025-03-17 14:48:40,369 INFO L226 Difference]: Without dead ends: 497 [2025-03-17 14:48:40,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2025-03-17 14:48:40,370 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 199 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:40,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 738 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:48:40,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2025-03-17 14:48:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 477. [2025-03-17 14:48:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 367 states have (on average 1.2125340599455041) internal successors, (445), 371 states have internal predecessors, (445), 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) [2025-03-17 14:48:40,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 633 transitions. [2025-03-17 14:48:40,391 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 633 transitions. Word has length 71 [2025-03-17 14:48:40,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:40,391 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 633 transitions. [2025-03-17 14:48:40,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.608695652173913) internal successors, (83), 18 states have internal predecessors, (83), 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) [2025-03-17 14:48:40,391 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 633 transitions. [2025-03-17 14:48:40,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-17 14:48:40,392 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:40,392 INFO L218 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] [2025-03-17 14:48:40,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:40,592 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,SelfDestructingSolverStorable25 [2025-03-17 14:48:40,593 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:40,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:40,593 INFO L85 PathProgramCache]: Analyzing trace with hash 698831823, now seen corresponding path program 1 times [2025-03-17 14:48:40,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:40,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179940271] [2025-03-17 14:48:40,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:40,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:40,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-17 14:48:40,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-17 14:48:40,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:40,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:40,692 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-17 14:48:40,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:40,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179940271] [2025-03-17 14:48:40,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179940271] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:40,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:40,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 14:48:40,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646682316] [2025-03-17 14:48:40,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:40,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:48:40,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:40,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:48:40,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:48:40,694 INFO L87 Difference]: Start difference. First operand 477 states and 633 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 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) [2025-03-17 14:48:40,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:40,890 INFO L93 Difference]: Finished difference Result 868 states and 1175 transitions. [2025-03-17 14:48:40,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 14:48:40,890 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 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 75 [2025-03-17 14:48:40,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:40,892 INFO L225 Difference]: With dead ends: 868 [2025-03-17 14:48:40,893 INFO L226 Difference]: Without dead ends: 435 [2025-03-17 14:48:40,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:48:40,895 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 45 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:40,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 322 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:40,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2025-03-17 14:48:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 373. [2025-03-17 14:48:40,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 282 states have (on average 1.2553191489361701) internal successors, (354), 294 states have internal predecessors, (354), 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) [2025-03-17 14:48:40,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 485 transitions. [2025-03-17 14:48:40,917 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 485 transitions. Word has length 75 [2025-03-17 14:48:40,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:40,918 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 485 transitions. [2025-03-17 14:48:40,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 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) [2025-03-17 14:48:40,918 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 485 transitions. [2025-03-17 14:48:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-17 14:48:40,918 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:40,918 INFO L218 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] [2025-03-17 14:48:40,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-17 14:48:40,919 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:40,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:40,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1861648136, now seen corresponding path program 1 times [2025-03-17 14:48:40,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:40,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434512331] [2025-03-17 14:48:40,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:40,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:40,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 14:48:40,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 14:48:40,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:40,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:40,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687617661] [2025-03-17 14:48:40,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:40,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:40,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:40,932 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:40,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 14:48:40,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-17 14:48:40,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 14:48:40,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:40,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:40,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 14:48:40,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 40 proven. 18 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-17 14:48:41,133 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:41,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:41,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434512331] [2025-03-17 14:48:41,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:41,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687617661] [2025-03-17 14:48:41,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687617661] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:41,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:41,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-03-17 14:48:41,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422579478] [2025-03-17 14:48:41,254 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:41,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 14:48:41,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:41,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 14:48:41,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2025-03-17 14:48:41,255 INFO L87 Difference]: Start difference. First operand 373 states and 485 transitions. Second operand has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 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) [2025-03-17 14:48:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:41,683 INFO L93 Difference]: Finished difference Result 509 states and 648 transitions. [2025-03-17 14:48:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-17 14:48:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 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 79 [2025-03-17 14:48:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:41,689 INFO L225 Difference]: With dead ends: 509 [2025-03-17 14:48:41,689 INFO L226 Difference]: Without dead ends: 505 [2025-03-17 14:48:41,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2025-03-17 14:48:41,690 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 110 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:41,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 588 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:41,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2025-03-17 14:48:41,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 446. [2025-03-17 14:48:41,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 340 states have (on average 1.2323529411764707) internal successors, (419), 350 states have internal predecessors, (419), 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) [2025-03-17 14:48:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 574 transitions. [2025-03-17 14:48:41,709 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 574 transitions. Word has length 79 [2025-03-17 14:48:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:41,709 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 574 transitions. [2025-03-17 14:48:41,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 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) [2025-03-17 14:48:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 574 transitions. [2025-03-17 14:48:41,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-17 14:48:41,711 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:41,711 INFO L218 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] [2025-03-17 14:48:41,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 14:48:41,911 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,SelfDestructingSolverStorable27 [2025-03-17 14:48:41,913 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:41,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:41,913 INFO L85 PathProgramCache]: Analyzing trace with hash -35053585, now seen corresponding path program 1 times [2025-03-17 14:48:41,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:41,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843539171] [2025-03-17 14:48:41,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:41,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:41,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 14:48:41,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 14:48:41,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:41,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:41,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873480391] [2025-03-17 14:48:41,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:41,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:41,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:41,927 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:48:41,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 14:48:41,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 14:48:41,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 14:48:41,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:41,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:41,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:48:41,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 14:48:42,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:42,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:42,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843539171] [2025-03-17 14:48:42,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:42,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873480391] [2025-03-17 14:48:42,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873480391] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:42,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:42,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:48:42,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729082653] [2025-03-17 14:48:42,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:42,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:42,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:42,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:42,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:42,043 INFO L87 Difference]: Start difference. First operand 446 states and 574 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2025-03-17 14:48:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:42,095 INFO L93 Difference]: Finished difference Result 446 states and 574 transitions. [2025-03-17 14:48:42,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:42,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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 83 [2025-03-17 14:48:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:42,098 INFO L225 Difference]: With dead ends: 446 [2025-03-17 14:48:42,098 INFO L226 Difference]: Without dead ends: 445 [2025-03-17 14:48:42,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:42,098 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 7 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:42,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 183 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:42,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2025-03-17 14:48:42,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2025-03-17 14:48:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 340 states have (on average 1.2058823529411764) internal successors, (410), 349 states have internal predecessors, (410), 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) [2025-03-17 14:48:42,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 565 transitions. [2025-03-17 14:48:42,115 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 565 transitions. Word has length 83 [2025-03-17 14:48:42,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:42,116 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 565 transitions. [2025-03-17 14:48:42,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2025-03-17 14:48:42,116 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 565 transitions. [2025-03-17 14:48:42,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-17 14:48:42,116 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:42,116 INFO L218 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] [2025-03-17 14:48:42,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:42,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-17 14:48:42,320 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:42,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:42,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1086661146, now seen corresponding path program 1 times [2025-03-17 14:48:42,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:42,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754068402] [2025-03-17 14:48:42,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:42,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:42,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-17 14:48:42,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-17 14:48:42,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:42,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:42,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033478038] [2025-03-17 14:48:42,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:42,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:42,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:42,331 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) [2025-03-17 14:48:42,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 14:48:42,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-17 14:48:42,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-17 14:48:42,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:42,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:42,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 14:48:42,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:42,517 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 49 proven. 7 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-17 14:48:42,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:42,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754068402] [2025-03-17 14:48:42,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:48:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033478038] [2025-03-17 14:48:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033478038] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:42,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:42,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-03-17 14:48:42,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305734417] [2025-03-17 14:48:42,710 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:42,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 14:48:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:42,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 14:48:42,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-17 14:48:42,711 INFO L87 Difference]: Start difference. First operand 445 states and 565 transitions. Second operand has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 11 states have internal predecessors, (49), 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) [2025-03-17 14:48:42,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:42,921 INFO L93 Difference]: Finished difference Result 568 states and 762 transitions. [2025-03-17 14:48:42,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 14:48:42,922 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 11 states have internal predecessors, (49), 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 84 [2025-03-17 14:48:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:42,924 INFO L225 Difference]: With dead ends: 568 [2025-03-17 14:48:42,924 INFO L226 Difference]: Without dead ends: 567 [2025-03-17 14:48:42,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:48:42,925 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 12 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:42,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 319 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2025-03-17 14:48:42,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 482. [2025-03-17 14:48:42,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 370 states have (on average 1.1864864864864866) internal successors, (439), 376 states have internal predecessors, (439), 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) [2025-03-17 14:48:42,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 608 transitions. [2025-03-17 14:48:42,948 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 608 transitions. Word has length 84 [2025-03-17 14:48:42,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:42,948 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 608 transitions. [2025-03-17 14:48:42,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 11 states have internal predecessors, (49), 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) [2025-03-17 14:48:42,948 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 608 transitions. [2025-03-17 14:48:42,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-03-17 14:48:42,949 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:42,949 INFO L218 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] [2025-03-17 14:48:42,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:43,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:43,150 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:48:43,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:43,150 INFO L85 PathProgramCache]: Analyzing trace with hash 673242829, now seen corresponding path program 2 times [2025-03-17 14:48:43,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:43,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465872264] [2025-03-17 14:48:43,150 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:43,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:43,154 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 85 statements into 2 equivalence classes. [2025-03-17 14:48:43,180 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 14:48:43,180 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:43,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:48:43,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908065148] [2025-03-17 14:48:43,181 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:43,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:43,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:43,183 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) [2025-03-17 14:48:43,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 14:48:43,208 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 85 statements into 2 equivalence classes. [2025-03-17 14:48:43,225 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 14:48:43,226 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:43,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:43,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-17 14:48:43,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 52 proven. 20 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-17 14:48:43,428 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:22,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:22,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465872264] [2025-03-17 14:49:22,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:22,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908065148] [2025-03-17 14:49:22,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908065148] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:22,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:22,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-03-17 14:49:22,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706674403] [2025-03-17 14:49:22,612 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:22,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 14:49:22,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:22,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 14:49:22,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=438, Unknown=6, NotChecked=0, Total=506 [2025-03-17 14:49:22,613 INFO L87 Difference]: Start difference. First operand 482 states and 608 transitions. Second operand has 17 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-17 14:49:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:26,803 INFO L93 Difference]: Finished difference Result 562 states and 739 transitions. [2025-03-17 14:49:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 14:49:26,804 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 85 [2025-03-17 14:49:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:26,807 INFO L225 Difference]: With dead ends: 562 [2025-03-17 14:49:26,807 INFO L226 Difference]: Without dead ends: 560 [2025-03-17 14:49:26,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 41.5s TimeCoverageRelationStatistics Valid=109, Invalid=641, Unknown=6, NotChecked=0, Total=756 [2025-03-17 14:49:26,808 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 67 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:26,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 325 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:26,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2025-03-17 14:49:26,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 500. [2025-03-17 14:49:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 384 states have (on average 1.1796875) internal successors, (453), 390 states have internal predecessors, (453), 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) [2025-03-17 14:49:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 633 transitions. [2025-03-17 14:49:26,829 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 633 transitions. Word has length 85 [2025-03-17 14:49:26,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:26,829 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 633 transitions. [2025-03-17 14:49:26,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-17 14:49:26,830 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 633 transitions. [2025-03-17 14:49:26,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 14:49:26,831 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:26,831 INFO L218 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] [2025-03-17 14:49:26,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:27,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:27,034 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:27,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:27,035 INFO L85 PathProgramCache]: Analyzing trace with hash -93236934, now seen corresponding path program 2 times [2025-03-17 14:49:27,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:27,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609769985] [2025-03-17 14:49:27,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:27,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:27,039 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes. [2025-03-17 14:49:27,045 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 14:49:27,045 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:27,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-17 14:49:27,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:27,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609769985] [2025-03-17 14:49:27,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609769985] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:27,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174521046] [2025-03-17 14:49:27,195 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:27,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:27,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:27,197 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) [2025-03-17 14:49:27,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 14:49:27,223 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes. [2025-03-17 14:49:27,240 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 14:49:27,240 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:27,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:27,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 14:49:27,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-17 14:49:27,382 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-17 14:49:27,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174521046] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:27,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:27,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2025-03-17 14:49:27,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992627948] [2025-03-17 14:49:27,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:27,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 14:49:27,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:27,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 14:49:27,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-03-17 14:49:27,554 INFO L87 Difference]: Start difference. First operand 500 states and 633 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 15 states have internal predecessors, (68), 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) [2025-03-17 14:49:27,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:27,897 INFO L93 Difference]: Finished difference Result 954 states and 1218 transitions. [2025-03-17 14:49:27,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 14:49:27,897 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 15 states have internal predecessors, (68), 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 89 [2025-03-17 14:49:27,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:27,900 INFO L225 Difference]: With dead ends: 954 [2025-03-17 14:49:27,900 INFO L226 Difference]: Without dead ends: 494 [2025-03-17 14:49:27,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 165 SyntacticMatches, 9 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:49:27,903 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 76 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:27,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 609 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2025-03-17 14:49:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 478. [2025-03-17 14:49:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 366 states have (on average 1.174863387978142) internal successors, (430), 373 states have internal predecessors, (430), 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) [2025-03-17 14:49:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 595 transitions. [2025-03-17 14:49:27,926 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 595 transitions. Word has length 89 [2025-03-17 14:49:27,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:27,926 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 595 transitions. [2025-03-17 14:49:27,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 15 states have internal predecessors, (68), 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) [2025-03-17 14:49:27,926 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 595 transitions. [2025-03-17 14:49:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-17 14:49:27,927 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:27,927 INFO L218 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] [2025-03-17 14:49:27,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:28,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:28,134 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:28,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:28,134 INFO L85 PathProgramCache]: Analyzing trace with hash -669154485, now seen corresponding path program 1 times [2025-03-17 14:49:28,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:28,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054633681] [2025-03-17 14:49:28,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:28,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:28,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-17 14:49:28,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 14:49:28,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:28,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-03-17 14:49:28,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:28,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054633681] [2025-03-17 14:49:28,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054633681] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:28,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439481748] [2025-03-17 14:49:28,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:28,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:28,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:28,185 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) [2025-03-17 14:49:28,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 14:49:28,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-17 14:49:28,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 14:49:28,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:28,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:28,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:49:28,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-03-17 14:49:28,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-03-17 14:49:28,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439481748] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:28,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:28,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-17 14:49:28,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769694254] [2025-03-17 14:49:28,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:28,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:49:28,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:28,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:49:28,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:49:28,367 INFO L87 Difference]: Start difference. First operand 478 states and 595 transitions. Second operand has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 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) [2025-03-17 14:49:28,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:28,430 INFO L93 Difference]: Finished difference Result 554 states and 703 transitions. [2025-03-17 14:49:28,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 14:49:28,431 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 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 92 [2025-03-17 14:49:28,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:28,433 INFO L225 Difference]: With dead ends: 554 [2025-03-17 14:49:28,433 INFO L226 Difference]: Without dead ends: 553 [2025-03-17 14:49:28,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:49:28,433 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 8 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:28,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 245 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:49:28,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2025-03-17 14:49:28,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2025-03-17 14:49:28,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 430 states have (on average 1.172093023255814) internal successors, (504), 436 states have internal predecessors, (504), 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) [2025-03-17 14:49:28,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 691 transitions. [2025-03-17 14:49:28,455 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 691 transitions. Word has length 92 [2025-03-17 14:49:28,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:28,456 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 691 transitions. [2025-03-17 14:49:28,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 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) [2025-03-17 14:49:28,456 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 691 transitions. [2025-03-17 14:49:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-17 14:49:28,458 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:28,459 INFO L218 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] [2025-03-17 14:49:28,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:28,659 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,SelfDestructingSolverStorable32 [2025-03-17 14:49:28,659 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:28,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1387797082, now seen corresponding path program 1 times [2025-03-17 14:49:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:28,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764200016] [2025-03-17 14:49:28,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:28,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 14:49:28,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 14:49:28,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:28,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:28,790 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-03-17 14:49:28,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:28,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764200016] [2025-03-17 14:49:28,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764200016] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:28,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846960297] [2025-03-17 14:49:28,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:28,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:28,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:28,792 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) [2025-03-17 14:49:28,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 14:49:28,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-17 14:49:28,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-17 14:49:28,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:28,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:28,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:49:28,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-03-17 14:49:28,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2025-03-17 14:49:29,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846960297] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:29,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:29,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-03-17 14:49:29,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915335656] [2025-03-17 14:49:29,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:29,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 14:49:29,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:29,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 14:49:29,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2025-03-17 14:49:29,053 INFO L87 Difference]: Start difference. First operand 553 states and 691 transitions. Second operand has 16 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 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) [2025-03-17 14:49:29,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:29,332 INFO L93 Difference]: Finished difference Result 783 states and 982 transitions. [2025-03-17 14:49:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 14:49:29,333 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 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 105 [2025-03-17 14:49:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:29,335 INFO L225 Difference]: With dead ends: 783 [2025-03-17 14:49:29,336 INFO L226 Difference]: Without dead ends: 770 [2025-03-17 14:49:29,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2025-03-17 14:49:29,337 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 113 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:29,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 377 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:29,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2025-03-17 14:49:29,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 692. [2025-03-17 14:49:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 542 states have (on average 1.1845018450184501) internal successors, (642), 545 states have internal predecessors, (642), 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) [2025-03-17 14:49:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 873 transitions. [2025-03-17 14:49:29,363 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 873 transitions. Word has length 105 [2025-03-17 14:49:29,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:29,363 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 873 transitions. [2025-03-17 14:49:29,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.923076923076923) internal successors, (64), 12 states have internal predecessors, (64), 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) [2025-03-17 14:49:29,364 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 873 transitions. [2025-03-17 14:49:29,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-17 14:49:29,364 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:29,364 INFO L218 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] [2025-03-17 14:49:29,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:29,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:29,565 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:29,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:29,565 INFO L85 PathProgramCache]: Analyzing trace with hash -45206401, now seen corresponding path program 1 times [2025-03-17 14:49:29,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:29,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68033494] [2025-03-17 14:49:29,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:29,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:29,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 14:49:29,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 14:49:29,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:29,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2025-03-17 14:49:29,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:29,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68033494] [2025-03-17 14:49:29,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68033494] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:29,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881721689] [2025-03-17 14:49:29,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:29,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:29,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:29,718 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) [2025-03-17 14:49:29,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-17 14:49:29,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-17 14:49:29,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-17 14:49:29,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:29,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:29,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:49:29,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2025-03-17 14:49:29,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2025-03-17 14:49:30,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881721689] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:30,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:30,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 14 [2025-03-17 14:49:30,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465878169] [2025-03-17 14:49:30,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:30,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 14:49:30,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:30,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 14:49:30,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:49:30,047 INFO L87 Difference]: Start difference. First operand 692 states and 873 transitions. Second operand has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 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) [2025-03-17 14:49:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:30,440 INFO L93 Difference]: Finished difference Result 1322 states and 1698 transitions. [2025-03-17 14:49:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 14:49:30,441 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 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 109 [2025-03-17 14:49:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:30,443 INFO L225 Difference]: With dead ends: 1322 [2025-03-17 14:49:30,444 INFO L226 Difference]: Without dead ends: 703 [2025-03-17 14:49:30,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 208 SyntacticMatches, 10 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2025-03-17 14:49:30,446 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 56 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:30,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 523 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:30,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2025-03-17 14:49:30,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 694. [2025-03-17 14:49:30,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 543 states have (on average 1.1823204419889504) internal successors, (642), 547 states have internal predecessors, (642), 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) [2025-03-17 14:49:30,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 878 transitions. [2025-03-17 14:49:30,473 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 878 transitions. Word has length 109 [2025-03-17 14:49:30,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:30,473 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 878 transitions. [2025-03-17 14:49:30,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 12 states have internal predecessors, (51), 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) [2025-03-17 14:49:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 878 transitions. [2025-03-17 14:49:30,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-17 14:49:30,474 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:30,474 INFO L218 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] [2025-03-17 14:49:30,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-17 14:49:30,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:30,675 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:30,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1062525332, now seen corresponding path program 2 times [2025-03-17 14:49:30,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:30,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633128291] [2025-03-17 14:49:30,675 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:30,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:30,681 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-03-17 14:49:30,687 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-03-17 14:49:30,687 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:30,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:30,832 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2025-03-17 14:49:30,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:30,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633128291] [2025-03-17 14:49:30,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633128291] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:49:30,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:49:30,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 14:49:30,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136259968] [2025-03-17 14:49:30,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:49:30,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 14:49:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:30,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 14:49:30,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:49:30,834 INFO L87 Difference]: Start difference. First operand 694 states and 878 transitions. Second operand has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2025-03-17 14:49:31,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:31,014 INFO L93 Difference]: Finished difference Result 1169 states and 1483 transitions. [2025-03-17 14:49:31,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 14:49:31,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 111 [2025-03-17 14:49:31,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:31,018 INFO L225 Difference]: With dead ends: 1169 [2025-03-17 14:49:31,018 INFO L226 Difference]: Without dead ends: 724 [2025-03-17 14:49:31,020 INFO L434 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 [2025-03-17 14:49:31,020 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 41 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:31,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 435 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2025-03-17 14:49:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 720. [2025-03-17 14:49:31,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 564 states have (on average 1.1826241134751774) internal successors, (667), 568 states have internal predecessors, (667), 104 states have call successors, (104), 37 states have call predecessors, (104), 44 states have return successors, (136), 114 states have call predecessors, (136), 104 states have call successors, (136) [2025-03-17 14:49:31,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 907 transitions. [2025-03-17 14:49:31,056 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 907 transitions. Word has length 111 [2025-03-17 14:49:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:31,056 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 907 transitions. [2025-03-17 14:49:31,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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) [2025-03-17 14:49:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 907 transitions. [2025-03-17 14:49:31,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-17 14:49:31,059 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:31,059 INFO L218 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] [2025-03-17 14:49:31,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-03-17 14:49:31,059 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:31,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:31,060 INFO L85 PathProgramCache]: Analyzing trace with hash -90789523, now seen corresponding path program 2 times [2025-03-17 14:49:31,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:31,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115528694] [2025-03-17 14:49:31,060 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:31,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:31,065 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 114 statements into 2 equivalence classes. [2025-03-17 14:49:31,072 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-03-17 14:49:31,072 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:31,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:31,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [562002821] [2025-03-17 14:49:31,073 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:31,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:31,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:31,077 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) [2025-03-17 14:49:31,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-17 14:49:31,104 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 114 statements into 2 equivalence classes. [2025-03-17 14:49:31,130 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-03-17 14:49:31,130 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:31,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:31,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:49:31,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 75 proven. 7 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2025-03-17 14:49:31,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:31,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:31,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115528694] [2025-03-17 14:49:31,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:31,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562002821] [2025-03-17 14:49:31,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562002821] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:31,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:31,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-17 14:49:31,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581396867] [2025-03-17 14:49:31,371 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:31,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 14:49:31,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:31,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 14:49:31,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-03-17 14:49:31,371 INFO L87 Difference]: Start difference. First operand 720 states and 907 transitions. Second operand has 13 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2025-03-17 14:49:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:31,606 INFO L93 Difference]: Finished difference Result 749 states and 934 transitions. [2025-03-17 14:49:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 14:49:31,606 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 114 [2025-03-17 14:49:31,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:31,609 INFO L225 Difference]: With dead ends: 749 [2025-03-17 14:49:31,609 INFO L226 Difference]: Without dead ends: 748 [2025-03-17 14:49:31,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2025-03-17 14:49:31,610 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 66 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:31,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 390 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2025-03-17 14:49:31,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 733. [2025-03-17 14:49:31,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 575 states have (on average 1.182608695652174) internal successors, (680), 578 states have internal predecessors, (680), 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) [2025-03-17 14:49:31,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 918 transitions. [2025-03-17 14:49:31,647 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 918 transitions. Word has length 114 [2025-03-17 14:49:31,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:31,647 INFO L471 AbstractCegarLoop]: Abstraction has 733 states and 918 transitions. [2025-03-17 14:49:31,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2025-03-17 14:49:31,648 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 918 transitions. [2025-03-17 14:49:31,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-17 14:49:31,649 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:31,649 INFO L218 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] [2025-03-17 14:49:31,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-17 14:49:31,849 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 [2025-03-17 14:49:31,850 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:31,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:31,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1163420847, now seen corresponding path program 1 times [2025-03-17 14:49:31,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:31,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794623693] [2025-03-17 14:49:31,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:31,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:31,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-17 14:49:31,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 14:49:31,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:31,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:31,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565518070] [2025-03-17 14:49:31,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:31,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:31,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:31,862 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) [2025-03-17 14:49:31,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-17 14:49:31,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-17 14:49:31,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-17 14:49:31,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:31,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:31,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 14:49:31,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 48 proven. 16 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-17 14:49:32,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:32,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:32,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794623693] [2025-03-17 14:49:32,141 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:32,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565518070] [2025-03-17 14:49:32,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565518070] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:32,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:32,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-03-17 14:49:32,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906782296] [2025-03-17 14:49:32,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:32,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 14:49:32,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:32,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 14:49:32,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2025-03-17 14:49:32,142 INFO L87 Difference]: Start difference. First operand 733 states and 918 transitions. Second operand has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 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) [2025-03-17 14:49:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:32,634 INFO L93 Difference]: Finished difference Result 1190 states and 1527 transitions. [2025-03-17 14:49:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-17 14:49:32,635 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 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 113 [2025-03-17 14:49:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:32,638 INFO L225 Difference]: With dead ends: 1190 [2025-03-17 14:49:32,638 INFO L226 Difference]: Without dead ends: 1188 [2025-03-17 14:49:32,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=1350, Unknown=0, NotChecked=0, Total=1560 [2025-03-17 14:49:32,639 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 128 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:32,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 443 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:32,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2025-03-17 14:49:32,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 969. [2025-03-17 14:49:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 760 states have (on average 1.186842105263158) internal successors, (902), 762 states have internal predecessors, (902), 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) [2025-03-17 14:49:32,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1231 transitions. [2025-03-17 14:49:32,677 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1231 transitions. Word has length 113 [2025-03-17 14:49:32,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:32,677 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1231 transitions. [2025-03-17 14:49:32,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 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) [2025-03-17 14:49:32,678 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1231 transitions. [2025-03-17 14:49:32,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-17 14:49:32,679 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:32,679 INFO L218 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] [2025-03-17 14:49:32,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-17 14:49:32,879 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,SelfDestructingSolverStorable37 [2025-03-17 14:49:32,879 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:32,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:32,880 INFO L85 PathProgramCache]: Analyzing trace with hash -858338472, now seen corresponding path program 1 times [2025-03-17 14:49:32,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:32,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158596354] [2025-03-17 14:49:32,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:32,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:32,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-03-17 14:49:32,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-03-17 14:49:32,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:32,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-03-17 14:49:32,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:32,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158596354] [2025-03-17 14:49:32,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158596354] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:32,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723669197] [2025-03-17 14:49:32,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:32,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:32,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:32,987 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) [2025-03-17 14:49:32,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-17 14:49:33,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-03-17 14:49:33,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-03-17 14:49:33,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:33,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:33,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:49:33,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:33,139 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 14:49:33,139 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:49:33,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723669197] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:49:33,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:33,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2025-03-17 14:49:33,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263555133] [2025-03-17 14:49:33,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:49:33,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 14:49:33,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:33,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 14:49:33,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2025-03-17 14:49:33,140 INFO L87 Difference]: Start difference. First operand 969 states and 1231 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2025-03-17 14:49:33,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:33,346 INFO L93 Difference]: Finished difference Result 1739 states and 2227 transitions. [2025-03-17 14:49:33,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 14:49:33,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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 114 [2025-03-17 14:49:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:33,350 INFO L225 Difference]: With dead ends: 1739 [2025-03-17 14:49:33,350 INFO L226 Difference]: Without dead ends: 910 [2025-03-17 14:49:33,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2025-03-17 14:49:33,353 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 41 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:33,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 360 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:33,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2025-03-17 14:49:33,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 897. [2025-03-17 14:49:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 703 states have (on average 1.1891891891891893) internal successors, (836), 708 states have internal predecessors, (836), 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) [2025-03-17 14:49:33,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1126 transitions. [2025-03-17 14:49:33,392 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1126 transitions. Word has length 114 [2025-03-17 14:49:33,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:33,393 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1126 transitions. [2025-03-17 14:49:33,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 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) [2025-03-17 14:49:33,393 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1126 transitions. [2025-03-17 14:49:33,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-17 14:49:33,394 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:33,394 INFO L218 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] [2025-03-17 14:49:33,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:33,594 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,SelfDestructingSolverStorable38 [2025-03-17 14:49:33,595 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:33,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:33,595 INFO L85 PathProgramCache]: Analyzing trace with hash -526097129, now seen corresponding path program 2 times [2025-03-17 14:49:33,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:33,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450128064] [2025-03-17 14:49:33,596 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:33,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:33,600 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 114 statements into 2 equivalence classes. [2025-03-17 14:49:33,607 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-03-17 14:49:33,609 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:33,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:33,689 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-03-17 14:49:33,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:33,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450128064] [2025-03-17 14:49:33,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450128064] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:33,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926199685] [2025-03-17 14:49:33,689 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:33,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:33,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:33,691 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) [2025-03-17 14:49:33,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-17 14:49:33,718 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 114 statements into 2 equivalence classes. [2025-03-17 14:49:33,757 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-03-17 14:49:33,757 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:33,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:33,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:49:33,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-03-17 14:49:33,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:49:33,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926199685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:49:33,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:33,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2025-03-17 14:49:33,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047358190] [2025-03-17 14:49:33,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:49:33,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:49:33,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:33,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:49:33,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:49:33,807 INFO L87 Difference]: Start difference. First operand 897 states and 1126 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2025-03-17 14:49:33,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:33,877 INFO L93 Difference]: Finished difference Result 1437 states and 1807 transitions. [2025-03-17 14:49:33,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:49:33,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 114 [2025-03-17 14:49:33,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:33,882 INFO L225 Difference]: With dead ends: 1437 [2025-03-17 14:49:33,882 INFO L226 Difference]: Without dead ends: 767 [2025-03-17 14:49:33,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:49:33,884 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 13 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:33,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 206 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:49:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2025-03-17 14:49:33,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 766. [2025-03-17 14:49:33,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 600 states have (on average 1.1833333333333333) internal successors, (710), 605 states have internal predecessors, (710), 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) [2025-03-17 14:49:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 955 transitions. [2025-03-17 14:49:33,916 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 955 transitions. Word has length 114 [2025-03-17 14:49:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:33,916 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 955 transitions. [2025-03-17 14:49:33,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2025-03-17 14:49:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 955 transitions. [2025-03-17 14:49:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-17 14:49:33,917 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:33,917 INFO L218 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] [2025-03-17 14:49:33,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:34,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-17 14:49:34,118 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:34,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:34,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1330415617, now seen corresponding path program 3 times [2025-03-17 14:49:34,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:34,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628248430] [2025-03-17 14:49:34,118 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:34,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:34,124 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 119 statements into 7 equivalence classes. [2025-03-17 14:49:34,150 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 119 of 119 statements. [2025-03-17 14:49:34,150 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-17 14:49:34,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:34,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068823814] [2025-03-17 14:49:34,152 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:34,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:34,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:34,155 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) [2025-03-17 14:49:34,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-17 14:49:34,182 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 119 statements into 7 equivalence classes. [2025-03-17 14:49:34,194 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 46 of 119 statements. [2025-03-17 14:49:34,194 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 14:49:34,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:34,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-17 14:49:34,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 79 proven. 20 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2025-03-17 14:49:34,443 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:34,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:34,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628248430] [2025-03-17 14:49:34,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:49:34,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068823814] [2025-03-17 14:49:34,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068823814] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:34,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:49:34,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2025-03-17 14:49:34,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568877925] [2025-03-17 14:49:34,587 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:34,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 14:49:34,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:34,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 14:49:34,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2025-03-17 14:49:34,589 INFO L87 Difference]: Start difference. First operand 766 states and 955 transitions. Second operand has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 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) [2025-03-17 14:49:34,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:34,972 INFO L93 Difference]: Finished difference Result 844 states and 1082 transitions. [2025-03-17 14:49:34,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 14:49:34,972 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 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 119 [2025-03-17 14:49:34,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:34,975 INFO L225 Difference]: With dead ends: 844 [2025-03-17 14:49:34,976 INFO L226 Difference]: Without dead ends: 837 [2025-03-17 14:49:34,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2025-03-17 14:49:34,976 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 71 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:34,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 532 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2025-03-17 14:49:35,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 790. [2025-03-17 14:49:35,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 622 states have (on average 1.1736334405144695) internal successors, (730), 622 states have internal predecessors, (730), 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) [2025-03-17 14:49:35,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 983 transitions. [2025-03-17 14:49:35,007 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 983 transitions. Word has length 119 [2025-03-17 14:49:35,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:35,007 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 983 transitions. [2025-03-17 14:49:35,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 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) [2025-03-17 14:49:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 983 transitions. [2025-03-17 14:49:35,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-17 14:49:35,008 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:35,008 INFO L218 NwaCegarLoop]: trace histogram [12, 10, 7, 5, 5, 5, 5, 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] [2025-03-17 14:49:35,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:35,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:35,209 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:35,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:35,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1613900655, now seen corresponding path program 4 times [2025-03-17 14:49:35,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:35,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923619276] [2025-03-17 14:49:35,209 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:35,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:35,213 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 124 statements into 2 equivalence classes. [2025-03-17 14:49:35,219 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 124 of 124 statements. [2025-03-17 14:49:35,219 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:49:35,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 117 proven. 70 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 14:49:35,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:35,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923619276] [2025-03-17 14:49:35,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923619276] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:35,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528793672] [2025-03-17 14:49:35,446 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:35,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:35,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:35,448 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) [2025-03-17 14:49:35,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-17 14:49:35,475 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 124 statements into 2 equivalence classes. [2025-03-17 14:49:35,495 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 124 of 124 statements. [2025-03-17 14:49:35,495 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:49:35,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:35,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-17 14:49:35,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 117 proven. 70 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-17 14:49:35,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 117 proven. 71 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2025-03-17 14:49:36,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528793672] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:36,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 18] total 21 [2025-03-17 14:49:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174168929] [2025-03-17 14:49:36,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:36,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-17 14:49:36,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:36,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-17 14:49:36,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2025-03-17 14:49:36,033 INFO L87 Difference]: Start difference. First operand 790 states and 983 transitions. Second operand has 21 states, 18 states have (on average 4.833333333333333) internal successors, (87), 19 states have internal predecessors, (87), 11 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) [2025-03-17 14:49:36,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:36,678 INFO L93 Difference]: Finished difference Result 2044 states and 2799 transitions. [2025-03-17 14:49:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-17 14:49:36,679 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 4.833333333333333) internal successors, (87), 19 states have internal predecessors, (87), 11 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) Word has length 124 [2025-03-17 14:49:36,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:36,685 INFO L225 Difference]: With dead ends: 2044 [2025-03-17 14:49:36,685 INFO L226 Difference]: Without dead ends: 1329 [2025-03-17 14:49:36,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 236 SyntacticMatches, 13 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2025-03-17 14:49:36,688 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 131 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:36,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 435 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 14:49:36,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2025-03-17 14:49:36,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 938. [2025-03-17 14:49:36,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 739 states have (on average 1.1677943166441136) internal successors, (863), 735 states have internal predecessors, (863), 131 states have call successors, (131), 53 states have call predecessors, (131), 60 states have return successors, (186), 149 states have call predecessors, (186), 131 states have call successors, (186) [2025-03-17 14:49:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1180 transitions. [2025-03-17 14:49:36,741 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1180 transitions. Word has length 124 [2025-03-17 14:49:36,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:36,741 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1180 transitions. [2025-03-17 14:49:36,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 4.833333333333333) internal successors, (87), 19 states have internal predecessors, (87), 11 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (14), 6 states have call predecessors, (14), 8 states have call successors, (14) [2025-03-17 14:49:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1180 transitions. [2025-03-17 14:49:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-17 14:49:36,742 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:36,742 INFO L218 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] [2025-03-17 14:49:36,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:36,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:36,947 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:36,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2134331354, now seen corresponding path program 3 times [2025-03-17 14:49:36,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:36,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12626938] [2025-03-17 14:49:36,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:36,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:36,951 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 124 statements into 8 equivalence classes. [2025-03-17 14:49:36,953 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 16 of 124 statements. [2025-03-17 14:49:36,953 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 14:49:36,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-03-17 14:49:36,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:36,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12626938] [2025-03-17 14:49:36,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12626938] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:36,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681609975] [2025-03-17 14:49:36,983 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:36,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:36,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:36,986 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) [2025-03-17 14:49:36,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-17 14:49:37,019 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 124 statements into 8 equivalence classes. [2025-03-17 14:49:37,023 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 16 of 124 statements. [2025-03-17 14:49:37,023 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 14:49:37,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:37,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:49:37,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-03-17 14:49:37,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2025-03-17 14:49:37,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681609975] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:37,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:37,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-03-17 14:49:37,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641639878] [2025-03-17 14:49:37,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:37,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 14:49:37,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:37,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 14:49:37,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:49:37,212 INFO L87 Difference]: Start difference. First operand 938 states and 1180 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2025-03-17 14:49:37,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:37,323 INFO L93 Difference]: Finished difference Result 941 states and 1180 transitions. [2025-03-17 14:49:37,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:49:37,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 124 [2025-03-17 14:49:37,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:37,330 INFO L225 Difference]: With dead ends: 941 [2025-03-17 14:49:37,330 INFO L226 Difference]: Without dead ends: 940 [2025-03-17 14:49:37,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 242 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:49:37,332 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 35 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:37,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 324 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2025-03-17 14:49:37,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 938. [2025-03-17 14:49:37,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 739 states have (on average 1.1637347767253046) internal successors, (860), 735 states have internal predecessors, (860), 131 states have call successors, (131), 53 states have call predecessors, (131), 60 states have return successors, (186), 149 states have call predecessors, (186), 131 states have call successors, (186) [2025-03-17 14:49:37,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1177 transitions. [2025-03-17 14:49:37,372 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1177 transitions. Word has length 124 [2025-03-17 14:49:37,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:37,373 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1177 transitions. [2025-03-17 14:49:37,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2025-03-17 14:49:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1177 transitions. [2025-03-17 14:49:37,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-17 14:49:37,374 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:37,374 INFO L218 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] [2025-03-17 14:49:37,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:37,574 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,SelfDestructingSolverStorable42 [2025-03-17 14:49:37,575 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:37,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1508289814, now seen corresponding path program 1 times [2025-03-17 14:49:37,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:37,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627806042] [2025-03-17 14:49:37,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:37,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:37,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-17 14:49:37,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 14:49:37,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:37,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:37,707 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2025-03-17 14:49:37,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:37,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627806042] [2025-03-17 14:49:37,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627806042] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:49:37,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:49:37,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 14:49:37,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504895961] [2025-03-17 14:49:37,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:49:37,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:49:37,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:37,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:49:37,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:49:37,709 INFO L87 Difference]: Start difference. First operand 938 states and 1177 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 9 states have internal predecessors, (50), 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) [2025-03-17 14:49:37,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:37,946 INFO L93 Difference]: Finished difference Result 1709 states and 2159 transitions. [2025-03-17 14:49:37,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 14:49:37,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 9 states have internal predecessors, (50), 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 133 [2025-03-17 14:49:37,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:37,951 INFO L225 Difference]: With dead ends: 1709 [2025-03-17 14:49:37,951 INFO L226 Difference]: Without dead ends: 945 [2025-03-17 14:49:37,953 INFO L434 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 [2025-03-17 14:49:37,953 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 39 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:37,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 346 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2025-03-17 14:49:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 938. [2025-03-17 14:49:37,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 739 states have (on average 1.1637347767253046) internal successors, (860), 735 states have internal predecessors, (860), 131 states have call successors, (131), 53 states have call predecessors, (131), 60 states have return successors, (183), 149 states have call predecessors, (183), 131 states have call successors, (183) [2025-03-17 14:49:37,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1174 transitions. [2025-03-17 14:49:37,993 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1174 transitions. Word has length 133 [2025-03-17 14:49:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:37,993 INFO L471 AbstractCegarLoop]: Abstraction has 938 states and 1174 transitions. [2025-03-17 14:49:37,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 9 states have internal predecessors, (50), 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) [2025-03-17 14:49:37,994 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1174 transitions. [2025-03-17 14:49:37,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-03-17 14:49:37,995 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:37,995 INFO L218 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] [2025-03-17 14:49:37,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2025-03-17 14:49:37,995 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-17 14:49:37,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:37,995 INFO L85 PathProgramCache]: Analyzing trace with hash 590515028, now seen corresponding path program 2 times [2025-03-17 14:49:37,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:37,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386362864] [2025-03-17 14:49:37,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:37,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:38,000 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-03-17 14:49:38,009 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-03-17 14:49:38,009 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:38,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:49:38,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401324166] [2025-03-17 14:49:38,010 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:38,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:38,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:38,012 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) [2025-03-17 14:49:38,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-17 14:49:38,044 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-03-17 14:49:38,070 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-03-17 14:49:38,071 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:38,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:38,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-17 14:49:38,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 148 proven. 27 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2025-03-17 14:49:38,329 INFO L312 TraceCheckSpWp]: Computing backward predicates...