./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 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/Binomial.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:40:47,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:40:47,234 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-10 18:40:47,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:40:47,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:40:47,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:40:47,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:40:47,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:40:47,278 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:40:47,279 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:40:47,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:40:47,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:40:47,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:40:47,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:40:47,281 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:40:47,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:40:47,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 18:40:47,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:40:47,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:40:47,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 18:40:47,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:40:47,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 18:40:47,289 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:40:47,289 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 18:40:47,289 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:40:47,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 18:40:47,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:40:47,290 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:40:47,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:40:47,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:40:47,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:40:47,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:40:47,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:40:47,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:40:47,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 18:40:47,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:40:47,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:40:47,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:40:47,293 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:40:47,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:40:47,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:40:47,294 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2024-11-10 18:40:47,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:40:47,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:40:47,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:40:47,588 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:40:47,588 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:40:47,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Binomial.c [2024-11-10 18:40:49,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:40:49,321 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:40:49,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Binomial.c [2024-11-10 18:40:49,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916285a54/09c574d5011a4385a1b277bfb40ed30d/FLAG116075caa [2024-11-10 18:40:49,341 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916285a54/09c574d5011a4385a1b277bfb40ed30d [2024-11-10 18:40:49,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:40:49,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:40:49,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:40:49,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:40:49,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:40:49,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6935dfc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49, skipping insertion in model container [2024-11-10 18:40:49,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,371 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:40:49,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:40:49,548 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:40:49,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:40:49,577 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:40:49,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49 WrapperNode [2024-11-10 18:40:49,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:40:49,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:40:49,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:40:49,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:40:49,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,609 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2024-11-10 18:40:49,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:40:49,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:40:49,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:40:49,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:40:49,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,630 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-10 18:40:49,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,633 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:40:49,641 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:40:49,642 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:40:49,642 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:40:49,642 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (1/1) ... [2024-11-10 18:40:49,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:40:49,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:49,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:40:49,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:40:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2024-11-10 18:40:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2024-11-10 18:40:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure binomialCoefficient [2024-11-10 18:40:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure binomialCoefficient [2024-11-10 18:40:49,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:40:49,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:40:49,807 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:40:49,809 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:40:49,998 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L30: havoc #t~ret1;havoc #t~ret2;havoc #t~ret3; [2024-11-10 18:40:50,080 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-11-10 18:40:50,080 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:40:50,102 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:40:50,102 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:40:50,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:40:50 BoogieIcfgContainer [2024-11-10 18:40:50,103 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:40:50,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:40:50,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:40:50,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:40:50,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:40:49" (1/3) ... [2024-11-10 18:40:50,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6d4282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:40:50, skipping insertion in model container [2024-11-10 18:40:50,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:40:49" (2/3) ... [2024-11-10 18:40:50,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6d4282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:40:50, skipping insertion in model container [2024-11-10 18:40:50,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:40:50" (3/3) ... [2024-11-10 18:40:50,111 INFO L112 eAbstractionObserver]: Analyzing ICFG Binomial.c [2024-11-10 18:40:50,125 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:40:50,125 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-10 18:40:50,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:40:50,191 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;@5f8a44e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:40:50,191 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-10 18:40:50,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 43 states have (on average 1.5116279069767442) internal successors, (65), 57 states have internal predecessors, (65), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 18:40:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-10 18:40:50,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:50,202 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:50,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:50,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:50,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1861131231, now seen corresponding path program 1 times [2024-11-10 18:40:50,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:50,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373086875] [2024-11-10 18:40:50,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:50,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:40:50,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:50,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373086875] [2024-11-10 18:40:50,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373086875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:50,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:50,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:40:50,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972533770] [2024-11-10 18:40:50,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:50,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:40:50,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:50,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:40:50,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:40:50,390 INFO L87 Difference]: Start difference. First operand has 66 states, 43 states have (on average 1.5116279069767442) internal successors, (65), 57 states have internal predecessors, (65), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:50,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:50,425 INFO L93 Difference]: Finished difference Result 128 states and 148 transitions. [2024-11-10 18:40:50,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 18:40:50,429 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-10 18:40:50,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:50,438 INFO L225 Difference]: With dead ends: 128 [2024-11-10 18:40:50,438 INFO L226 Difference]: Without dead ends: 62 [2024-11-10 18:40:50,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:40:50,449 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:50,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:50,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-10 18:40:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-10 18:40:50,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.425) internal successors, (57), 53 states have internal predecessors, (57), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 18:40:50,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2024-11-10 18:40:50,486 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 9 [2024-11-10 18:40:50,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:50,487 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2024-11-10 18:40:50,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:50,487 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2024-11-10 18:40:50,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-10 18:40:50,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:50,488 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:50,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:40:50,488 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:50,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:50,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1860510537, now seen corresponding path program 1 times [2024-11-10 18:40:50,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:50,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667006291] [2024-11-10 18:40:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:50,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:40:50,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:50,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667006291] [2024-11-10 18:40:50,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667006291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:50,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:50,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:40:50,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598220403] [2024-11-10 18:40:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:50,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:40:50,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:50,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:40:50,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:50,589 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:50,677 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2024-11-10 18:40:50,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:40:50,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-10 18:40:50,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:50,682 INFO L225 Difference]: With dead ends: 122 [2024-11-10 18:40:50,682 INFO L226 Difference]: Without dead ends: 64 [2024-11-10 18:40:50,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:40:50,684 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 27 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:50,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 161 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:50,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-10 18:40:50,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-10 18:40:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 55 states have internal predecessors, (59), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 18:40:50,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2024-11-10 18:40:50,707 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 10 [2024-11-10 18:40:50,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:50,707 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2024-11-10 18:40:50,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:50,708 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2024-11-10 18:40:50,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-10 18:40:50,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:50,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:50,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:40:50,709 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:50,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:50,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1371944161, now seen corresponding path program 1 times [2024-11-10 18:40:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:50,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765992723] [2024-11-10 18:40:50,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:50,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:50,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:40:50,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:50,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765992723] [2024-11-10 18:40:50,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765992723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:50,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:50,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:40:50,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568296520] [2024-11-10 18:40:50,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:50,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:40:50,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:50,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:40:50,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:40:50,785 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:50,809 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2024-11-10 18:40:50,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:40:50,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (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 15 [2024-11-10 18:40:50,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:50,811 INFO L225 Difference]: With dead ends: 64 [2024-11-10 18:40:50,812 INFO L226 Difference]: Without dead ends: 63 [2024-11-10 18:40:50,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:40:50,813 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 5 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:50,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 115 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:50,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-10 18:40:50,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-10 18:40:50,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 42 states have (on average 1.380952380952381) internal successors, (58), 54 states have internal predecessors, (58), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 18:40:50,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2024-11-10 18:40:50,831 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 15 [2024-11-10 18:40:50,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:50,832 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2024-11-10 18:40:50,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2024-11-10 18:40:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-10 18:40:50,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:50,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:50,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:40:50,834 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:50,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:50,838 INFO L85 PathProgramCache]: Analyzing trace with hash 419403947, now seen corresponding path program 1 times [2024-11-10 18:40:50,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803539928] [2024-11-10 18:40:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:50,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:40:50,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:50,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803539928] [2024-11-10 18:40:50,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803539928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:50,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:50,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:40:50,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232291327] [2024-11-10 18:40:50,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:50,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 18:40:50,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:50,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 18:40:50,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:40:50,989 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:51,159 INFO L93 Difference]: Finished difference Result 166 states and 188 transitions. [2024-11-10 18:40:51,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:40:51,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 16 [2024-11-10 18:40:51,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:51,161 INFO L225 Difference]: With dead ends: 166 [2024-11-10 18:40:51,161 INFO L226 Difference]: Without dead ends: 107 [2024-11-10 18:40:51,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:40:51,164 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 46 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:51,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 368 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:51,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-10 18:40:51,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 98. [2024-11-10 18:40:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 82 states have internal predecessors, (96), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-10 18:40:51,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2024-11-10 18:40:51,185 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 16 [2024-11-10 18:40:51,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:51,186 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2024-11-10 18:40:51,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:51,186 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2024-11-10 18:40:51,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-10 18:40:51,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:51,187 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:51,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:40:51,188 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:51,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:51,189 INFO L85 PathProgramCache]: Analyzing trace with hash -357745652, now seen corresponding path program 1 times [2024-11-10 18:40:51,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:51,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666158988] [2024-11-10 18:40:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:51,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:40:51,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:51,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666158988] [2024-11-10 18:40:51,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666158988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:51,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:51,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:40:51,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224208895] [2024-11-10 18:40:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:51,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:40:51,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:51,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:40:51,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:51,249 INFO L87 Difference]: Start difference. First operand 98 states and 118 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:51,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:51,319 INFO L93 Difference]: Finished difference Result 194 states and 233 transitions. [2024-11-10 18:40:51,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:40:51,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 16 [2024-11-10 18:40:51,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:51,322 INFO L225 Difference]: With dead ends: 194 [2024-11-10 18:40:51,322 INFO L226 Difference]: Without dead ends: 104 [2024-11-10 18:40:51,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:40:51,324 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 21 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:51,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 175 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:51,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-10 18:40:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 99. [2024-11-10 18:40:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 83 states have internal predecessors, (97), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-10 18:40:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 119 transitions. [2024-11-10 18:40:51,341 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 119 transitions. Word has length 16 [2024-11-10 18:40:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:51,341 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 119 transitions. [2024-11-10 18:40:51,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:40:51,342 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 119 transitions. [2024-11-10 18:40:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-10 18:40:51,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:51,342 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:51,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:40:51,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:51,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:51,343 INFO L85 PathProgramCache]: Analyzing trace with hash 774009754, now seen corresponding path program 1 times [2024-11-10 18:40:51,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:51,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635954739] [2024-11-10 18:40:51,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:51,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:51,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 18:40:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:40:51,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:51,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635954739] [2024-11-10 18:40:51,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635954739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:51,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:51,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:40:51,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677942401] [2024-11-10 18:40:51,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:51,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 18:40:51,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:51,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 18:40:51,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:40:51,476 INFO L87 Difference]: Start difference. First operand 99 states and 119 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 18:40:51,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:51,642 INFO L93 Difference]: Finished difference Result 240 states and 298 transitions. [2024-11-10 18:40:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:40:51,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 22 [2024-11-10 18:40:51,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:51,644 INFO L225 Difference]: With dead ends: 240 [2024-11-10 18:40:51,644 INFO L226 Difference]: Without dead ends: 150 [2024-11-10 18:40:51,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:40:51,648 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 38 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:51,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 351 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:51,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-10 18:40:51,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 138. [2024-11-10 18:40:51,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 99 states have (on average 1.393939393939394) internal successors, (138), 113 states have internal predecessors, (138), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-10 18:40:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 176 transitions. [2024-11-10 18:40:51,666 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 176 transitions. Word has length 22 [2024-11-10 18:40:51,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:51,666 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 176 transitions. [2024-11-10 18:40:51,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-10 18:40:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 176 transitions. [2024-11-10 18:40:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-10 18:40:51,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:51,667 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:51,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:40:51,668 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting binomialCoefficientErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:51,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:51,669 INFO L85 PathProgramCache]: Analyzing trace with hash 783142325, now seen corresponding path program 1 times [2024-11-10 18:40:51,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:51,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789044618] [2024-11-10 18:40:51,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:51,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:51,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 18:40:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:51,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 18:40:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 18:40:51,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:51,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789044618] [2024-11-10 18:40:51,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789044618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:51,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:51,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:40:51,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451723913] [2024-11-10 18:40:51,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:51,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:40:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:51,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:40:51,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:40:51,803 INFO L87 Difference]: Start difference. First operand 138 states and 176 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:40:51,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:51,899 INFO L93 Difference]: Finished difference Result 165 states and 203 transitions. [2024-11-10 18:40:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:40:51,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 24 [2024-11-10 18:40:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:51,903 INFO L225 Difference]: With dead ends: 165 [2024-11-10 18:40:51,903 INFO L226 Difference]: Without dead ends: 164 [2024-11-10 18:40:51,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:40:51,904 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 50 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:51,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 284 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:51,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-10 18:40:51,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 154. [2024-11-10 18:40:51,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 111 states have (on average 1.3693693693693694) internal successors, (152), 125 states have internal predecessors, (152), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 18:40:51,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 196 transitions. [2024-11-10 18:40:51,940 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 196 transitions. Word has length 24 [2024-11-10 18:40:51,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:51,940 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 196 transitions. [2024-11-10 18:40:51,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:40:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 196 transitions. [2024-11-10 18:40:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-10 18:40:51,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:51,941 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:51,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:40:51,941 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:51,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1492391704, now seen corresponding path program 1 times [2024-11-10 18:40:51,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:51,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104131076] [2024-11-10 18:40:51,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:51,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:52,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 18:40:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:52,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 18:40:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 18:40:52,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:52,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104131076] [2024-11-10 18:40:52,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104131076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:52,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:52,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:40:52,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130494087] [2024-11-10 18:40:52,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:52,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:40:52,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:52,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:40:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:40:52,077 INFO L87 Difference]: Start difference. First operand 154 states and 196 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:40:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:52,171 INFO L93 Difference]: Finished difference Result 165 states and 200 transitions. [2024-11-10 18:40:52,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:40:52,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 25 [2024-11-10 18:40:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:52,175 INFO L225 Difference]: With dead ends: 165 [2024-11-10 18:40:52,175 INFO L226 Difference]: Without dead ends: 164 [2024-11-10 18:40:52,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:40:52,177 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 50 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:52,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 279 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:52,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-10 18:40:52,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 154. [2024-11-10 18:40:52,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 125 states have internal predecessors, (151), 22 states have call successors, (22), 8 states have call predecessors, (22), 8 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 18:40:52,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 195 transitions. [2024-11-10 18:40:52,200 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 195 transitions. Word has length 25 [2024-11-10 18:40:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:52,202 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 195 transitions. [2024-11-10 18:40:52,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:40:52,203 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 195 transitions. [2024-11-10 18:40:52,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-10 18:40:52,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:52,204 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:52,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:40:52,204 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:52,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:52,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2061381097, now seen corresponding path program 1 times [2024-11-10 18:40:52,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:52,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308650557] [2024-11-10 18:40:52,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:52,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:52,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 18:40:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:52,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 18:40:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:52,318 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 18:40:52,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:52,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308650557] [2024-11-10 18:40:52,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308650557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:52,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:52,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 18:40:52,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115454154] [2024-11-10 18:40:52,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:52,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 18:40:52,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:52,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 18:40:52,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:40:52,324 INFO L87 Difference]: Start difference. First operand 154 states and 195 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:40:52,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:52,467 INFO L93 Difference]: Finished difference Result 304 states and 378 transitions. [2024-11-10 18:40:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:40:52,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 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 30 [2024-11-10 18:40:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:52,472 INFO L225 Difference]: With dead ends: 304 [2024-11-10 18:40:52,472 INFO L226 Difference]: Without dead ends: 168 [2024-11-10 18:40:52,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-10 18:40:52,474 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 52 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:52,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 380 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:52,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-10 18:40:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 158. [2024-11-10 18:40:52,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 114 states have (on average 1.3508771929824561) internal successors, (154), 128 states have internal predecessors, (154), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 18:40:52,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 198 transitions. [2024-11-10 18:40:52,496 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 198 transitions. Word has length 30 [2024-11-10 18:40:52,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:52,496 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 198 transitions. [2024-11-10 18:40:52,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 18:40:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 198 transitions. [2024-11-10 18:40:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-10 18:40:52,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:52,500 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:52,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 18:40:52,500 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:52,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash 996419586, now seen corresponding path program 1 times [2024-11-10 18:40:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:52,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179620701] [2024-11-10 18:40:52,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:52,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:40:52,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108956804] [2024-11-10 18:40:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:52,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:52,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:52,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:40:52,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:40:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:52,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:40:52,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:40:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 18:40:52,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:40:52,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:52,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179620701] [2024-11-10 18:40:52,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:40:52,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108956804] [2024-11-10 18:40:52,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108956804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:52,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:52,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:40:52,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612134136] [2024-11-10 18:40:52,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:52,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:40:52,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:52,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:40:52,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:40:52,657 INFO L87 Difference]: Start difference. First operand 158 states and 198 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 18:40:52,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:52,733 INFO L93 Difference]: Finished difference Result 217 states and 302 transitions. [2024-11-10 18:40:52,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:40:52,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (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 32 [2024-11-10 18:40:52,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:52,736 INFO L225 Difference]: With dead ends: 217 [2024-11-10 18:40:52,737 INFO L226 Difference]: Without dead ends: 216 [2024-11-10 18:40:52,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:40:52,738 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 11 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:52,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 225 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-10 18:40:52,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 180. [2024-11-10 18:40:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 132 states have (on average 1.3257575757575757) internal successors, (175), 143 states have internal predecessors, (175), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2024-11-10 18:40:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 239 transitions. [2024-11-10 18:40:52,758 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 239 transitions. Word has length 32 [2024-11-10 18:40:52,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:52,758 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 239 transitions. [2024-11-10 18:40:52,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 18:40:52,759 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 239 transitions. [2024-11-10 18:40:52,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-10 18:40:52,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:52,759 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:52,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 18:40:52,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-10 18:40:52,964 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:52,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:52,965 INFO L85 PathProgramCache]: Analyzing trace with hash 824236085, now seen corresponding path program 1 times [2024-11-10 18:40:52,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:52,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656665006] [2024-11-10 18:40:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:52,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:40:52,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1329081845] [2024-11-10 18:40:52,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:52,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:52,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:52,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:40:52,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:40:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:53,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 18:40:53,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:40:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 18:40:53,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:40:53,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:53,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656665006] [2024-11-10 18:40:53,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:40:53,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329081845] [2024-11-10 18:40:53,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329081845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:40:53,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:40:53,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-10 18:40:53,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934413663] [2024-11-10 18:40:53,245 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:40:53,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:40:53,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:53,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:40:53,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:40:53,246 INFO L87 Difference]: Start difference. First operand 180 states and 239 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 18:40:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:53,318 INFO L93 Difference]: Finished difference Result 217 states and 297 transitions. [2024-11-10 18:40:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:40:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 33 [2024-11-10 18:40:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:53,321 INFO L225 Difference]: With dead ends: 217 [2024-11-10 18:40:53,321 INFO L226 Difference]: Without dead ends: 216 [2024-11-10 18:40:53,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:40:53,322 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 10 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:53,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 225 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-10 18:40:53,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 184. [2024-11-10 18:40:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 136 states have (on average 1.3088235294117647) internal successors, (178), 147 states have internal predecessors, (178), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (39), 27 states have call predecessors, (39), 25 states have call successors, (39) [2024-11-10 18:40:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 242 transitions. [2024-11-10 18:40:53,335 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 242 transitions. Word has length 33 [2024-11-10 18:40:53,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:53,336 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 242 transitions. [2024-11-10 18:40:53,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 18:40:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 242 transitions. [2024-11-10 18:40:53,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-10 18:40:53,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:53,337 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:53,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 18:40:53,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-10 18:40:53,538 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:53,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:53,538 INFO L85 PathProgramCache]: Analyzing trace with hash -218485152, now seen corresponding path program 1 times [2024-11-10 18:40:53,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:53,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125847831] [2024-11-10 18:40:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:53,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:40:53,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433608359] [2024-11-10 18:40:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:53,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:53,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:53,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:40:53,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 18:40:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:53,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:40:53,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:40:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:53,699 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:40:53,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:53,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125847831] [2024-11-10 18:40:53,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:40:53,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433608359] [2024-11-10 18:40:53,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433608359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:53,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:53,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:40:53,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478270156] [2024-11-10 18:40:53,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:53,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:40:53,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:53,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:40:53,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:40:53,701 INFO L87 Difference]: Start difference. First operand 184 states and 242 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 18:40:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:53,787 INFO L93 Difference]: Finished difference Result 275 states and 379 transitions. [2024-11-10 18:40:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:40:53,788 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), 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 34 [2024-11-10 18:40:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:53,790 INFO L225 Difference]: With dead ends: 275 [2024-11-10 18:40:53,790 INFO L226 Difference]: Without dead ends: 273 [2024-11-10 18:40:53,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:40:53,791 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 30 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:53,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 234 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:53,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-10 18:40:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 219. [2024-11-10 18:40:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 173 states have internal predecessors, (209), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2024-11-10 18:40:53,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 290 transitions. [2024-11-10 18:40:53,830 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 290 transitions. Word has length 34 [2024-11-10 18:40:53,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:53,830 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 290 transitions. [2024-11-10 18:40:53,831 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 18:40:53,831 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 290 transitions. [2024-11-10 18:40:53,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-10 18:40:53,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:53,832 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:53,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 18:40:54,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:54,037 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:54,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1126283999, now seen corresponding path program 1 times [2024-11-10 18:40:54,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:54,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980581597] [2024-11-10 18:40:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:54,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:54,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:54,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980581597] [2024-11-10 18:40:54,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980581597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:54,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:54,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:40:54,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716855031] [2024-11-10 18:40:54,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:54,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:40:54,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:54,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:40:54,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:54,111 INFO L87 Difference]: Start difference. First operand 219 states and 290 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) [2024-11-10 18:40:54,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:54,139 INFO L93 Difference]: Finished difference Result 219 states and 290 transitions. [2024-11-10 18:40:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:40:54,141 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 [2024-11-10 18:40:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:54,143 INFO L225 Difference]: With dead ends: 219 [2024-11-10 18:40:54,143 INFO L226 Difference]: Without dead ends: 218 [2024-11-10 18:40:54,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:54,144 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 4 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:54,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 165 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-10 18:40:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-11-10 18:40:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 165 states have (on average 1.2545454545454546) internal successors, (207), 172 states have internal predecessors, (207), 31 states have call successors, (31), 9 states have call predecessors, (31), 10 states have return successors, (50), 36 states have call predecessors, (50), 31 states have call successors, (50) [2024-11-10 18:40:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 288 transitions. [2024-11-10 18:40:54,163 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 288 transitions. Word has length 41 [2024-11-10 18:40:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:54,163 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 288 transitions. [2024-11-10 18:40:54,163 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) [2024-11-10 18:40:54,164 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 288 transitions. [2024-11-10 18:40:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-10 18:40:54,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:54,164 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:54,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 18:40:54,165 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:54,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash 555065617, now seen corresponding path program 1 times [2024-11-10 18:40:54,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:54,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448735937] [2024-11-10 18:40:54,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:54,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:54,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:54,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448735937] [2024-11-10 18:40:54,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448735937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:54,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:54,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:40:54,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049693647] [2024-11-10 18:40:54,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:54,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:40:54,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:54,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:40:54,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:54,244 INFO L87 Difference]: Start difference. First operand 218 states and 288 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 18:40:54,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:54,274 INFO L93 Difference]: Finished difference Result 231 states and 303 transitions. [2024-11-10 18:40:54,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:40:54,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 42 [2024-11-10 18:40:54,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:54,276 INFO L225 Difference]: With dead ends: 231 [2024-11-10 18:40:54,277 INFO L226 Difference]: Without dead ends: 230 [2024-11-10 18:40:54,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:54,277 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 3 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:54,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 179 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:54,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-10 18:40:54,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2024-11-10 18:40:54,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 174 states have (on average 1.2413793103448276) internal successors, (216), 179 states have internal predecessors, (216), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2024-11-10 18:40:54,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 299 transitions. [2024-11-10 18:40:54,294 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 299 transitions. Word has length 42 [2024-11-10 18:40:54,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:54,295 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 299 transitions. [2024-11-10 18:40:54,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 18:40:54,295 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 299 transitions. [2024-11-10 18:40:54,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-10 18:40:54,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:54,296 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:54,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 18:40:54,296 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:54,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:54,296 INFO L85 PathProgramCache]: Analyzing trace with hash 506091514, now seen corresponding path program 1 times [2024-11-10 18:40:54,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:54,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388237970] [2024-11-10 18:40:54,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:54,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:40:54,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:54,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388237970] [2024-11-10 18:40:54,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388237970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:54,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:54,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:40:54,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023164136] [2024-11-10 18:40:54,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:54,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:40:54,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:54,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:40:54,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:54,394 INFO L87 Difference]: Start difference. First operand 228 states and 299 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 18:40:54,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:54,419 INFO L93 Difference]: Finished difference Result 228 states and 299 transitions. [2024-11-10 18:40:54,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:40:54,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (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 47 [2024-11-10 18:40:54,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:54,422 INFO L225 Difference]: With dead ends: 228 [2024-11-10 18:40:54,422 INFO L226 Difference]: Without dead ends: 227 [2024-11-10 18:40:54,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:54,423 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 5 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:54,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 158 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:54,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-10 18:40:54,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-10 18:40:54,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 174 states have (on average 1.235632183908046) internal successors, (215), 178 states have internal predecessors, (215), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2024-11-10 18:40:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 298 transitions. [2024-11-10 18:40:54,441 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 298 transitions. Word has length 47 [2024-11-10 18:40:54,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:54,441 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 298 transitions. [2024-11-10 18:40:54,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 18:40:54,441 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 298 transitions. [2024-11-10 18:40:54,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-10 18:40:54,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:54,442 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:54,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 18:40:54,443 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:54,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:54,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1491032240, now seen corresponding path program 1 times [2024-11-10 18:40:54,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:54,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134113645] [2024-11-10 18:40:54,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:54,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-10 18:40:54,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:54,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134113645] [2024-11-10 18:40:54,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134113645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:54,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:54,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:40:54,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329123401] [2024-11-10 18:40:54,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:54,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:40:54,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:54,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:40:54,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:54,526 INFO L87 Difference]: Start difference. First operand 227 states and 298 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 18:40:54,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:54,555 INFO L93 Difference]: Finished difference Result 233 states and 303 transitions. [2024-11-10 18:40:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:40:54,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 48 [2024-11-10 18:40:54,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:54,558 INFO L225 Difference]: With dead ends: 233 [2024-11-10 18:40:54,558 INFO L226 Difference]: Without dead ends: 232 [2024-11-10 18:40:54,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:40:54,559 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 4 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:54,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 173 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:54,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-10 18:40:54,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2024-11-10 18:40:54,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 177 states have (on average 1.231638418079096) internal successors, (218), 181 states have internal predecessors, (218), 32 states have call successors, (32), 9 states have call predecessors, (32), 10 states have return successors, (51), 39 states have call predecessors, (51), 32 states have call successors, (51) [2024-11-10 18:40:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 301 transitions. [2024-11-10 18:40:54,573 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 301 transitions. Word has length 48 [2024-11-10 18:40:54,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:54,574 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 301 transitions. [2024-11-10 18:40:54,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 18:40:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 301 transitions. [2024-11-10 18:40:54,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-10 18:40:54,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:54,575 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:54,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 18:40:54,575 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:54,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:54,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1489635057, now seen corresponding path program 1 times [2024-11-10 18:40:54,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:54,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254526900] [2024-11-10 18:40:54,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:54,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,710 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:54,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:54,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254526900] [2024-11-10 18:40:54,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254526900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:40:54,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941791165] [2024-11-10 18:40:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:54,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:54,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:54,713 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:40:54,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 18:40:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:54,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:40:54,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:40:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:54,807 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:40:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:54,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941791165] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:40:54,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:40:54,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-10 18:40:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731389706] [2024-11-10 18:40:54,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:40:54,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 18:40:54,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:54,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 18:40:54,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:40:54,951 INFO L87 Difference]: Start difference. First operand 230 states and 301 transitions. Second operand has 16 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:55,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:55,360 INFO L93 Difference]: Finished difference Result 328 states and 422 transitions. [2024-11-10 18:40:55,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 18:40:55,361 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 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 53 [2024-11-10 18:40:55,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:55,363 INFO L225 Difference]: With dead ends: 328 [2024-11-10 18:40:55,364 INFO L226 Difference]: Without dead ends: 327 [2024-11-10 18:40:55,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-10 18:40:55,365 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 106 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:55,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 801 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:40:55,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-10 18:40:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 300. [2024-11-10 18:40:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 232 states have (on average 1.2629310344827587) internal successors, (293), 238 states have internal predecessors, (293), 42 states have call successors, (42), 12 states have call predecessors, (42), 15 states have return successors, (69), 49 states have call predecessors, (69), 42 states have call successors, (69) [2024-11-10 18:40:55,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 404 transitions. [2024-11-10 18:40:55,382 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 404 transitions. Word has length 53 [2024-11-10 18:40:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:55,382 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 404 transitions. [2024-11-10 18:40:55,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 7 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:55,382 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 404 transitions. [2024-11-10 18:40:55,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-10 18:40:55,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:55,383 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:55,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 18:40:55,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-10 18:40:55,588 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:55,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:55,588 INFO L85 PathProgramCache]: Analyzing trace with hash -48487843, now seen corresponding path program 1 times [2024-11-10 18:40:55,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:55,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751596401] [2024-11-10 18:40:55,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:55,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:40:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,676 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 18:40:55,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:55,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751596401] [2024-11-10 18:40:55,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751596401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:55,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:55,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:40:55,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001511333] [2024-11-10 18:40:55,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:55,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:40:55,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:55,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:40:55,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:40:55,678 INFO L87 Difference]: Start difference. First operand 300 states and 404 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:55,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:55,776 INFO L93 Difference]: Finished difference Result 549 states and 743 transitions. [2024-11-10 18:40:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 18:40:55,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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 59 [2024-11-10 18:40:55,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:55,779 INFO L225 Difference]: With dead ends: 549 [2024-11-10 18:40:55,779 INFO L226 Difference]: Without dead ends: 288 [2024-11-10 18:40:55,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:40:55,781 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 16 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:55,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 265 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-10 18:40:55,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 287. [2024-11-10 18:40:55,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 225 states have (on average 1.248888888888889) internal successors, (281), 232 states have internal predecessors, (281), 37 states have call successors, (37), 11 states have call predecessors, (37), 14 states have return successors, (61), 43 states have call predecessors, (61), 37 states have call successors, (61) [2024-11-10 18:40:55,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 379 transitions. [2024-11-10 18:40:55,800 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 379 transitions. Word has length 59 [2024-11-10 18:40:55,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:55,800 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 379 transitions. [2024-11-10 18:40:55,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 379 transitions. [2024-11-10 18:40:55,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-10 18:40:55,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:55,801 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:55,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 18:40:55,802 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:55,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:55,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1140852482, now seen corresponding path program 2 times [2024-11-10 18:40:55,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:55,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138253830] [2024-11-10 18:40:55,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:55,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:40:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-10 18:40:55,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:55,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138253830] [2024-11-10 18:40:55,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138253830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:55,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:55,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 18:40:55,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955091430] [2024-11-10 18:40:55,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:55,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:40:55,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:55,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:40:55,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:40:55,960 INFO L87 Difference]: Start difference. First operand 287 states and 379 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:56,195 INFO L93 Difference]: Finished difference Result 549 states and 737 transitions. [2024-11-10 18:40:56,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:40:56,196 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 59 [2024-11-10 18:40:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:56,198 INFO L225 Difference]: With dead ends: 549 [2024-11-10 18:40:56,198 INFO L226 Difference]: Without dead ends: 305 [2024-11-10 18:40:56,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:40:56,200 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 44 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:56,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 421 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:40:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-10 18:40:56,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 299. [2024-11-10 18:40:56,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 234 states have (on average 1.264957264957265) internal successors, (296), 241 states have internal predecessors, (296), 39 states have call successors, (39), 12 states have call predecessors, (39), 15 states have return successors, (63), 45 states have call predecessors, (63), 39 states have call successors, (63) [2024-11-10 18:40:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 398 transitions. [2024-11-10 18:40:56,218 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 398 transitions. Word has length 59 [2024-11-10 18:40:56,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:56,218 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 398 transitions. [2024-11-10 18:40:56,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:56,218 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 398 transitions. [2024-11-10 18:40:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 18:40:56,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:56,219 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:56,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 18:40:56,219 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:56,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:56,220 INFO L85 PathProgramCache]: Analyzing trace with hash 340356503, now seen corresponding path program 1 times [2024-11-10 18:40:56,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:56,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712793612] [2024-11-10 18:40:56,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:56,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:40:56,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270657985] [2024-11-10 18:40:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:56,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:56,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:56,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:40:56,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 18:40:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:56,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:40:56,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:40:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-10 18:40:56,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:40:56,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712793612] [2024-11-10 18:40:56,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:40:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270657985] [2024-11-10 18:40:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270657985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:56,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:56,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 18:40:56,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634523322] [2024-11-10 18:40:56,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:56,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:40:56,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:56,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:40:56,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:40:56,345 INFO L87 Difference]: Start difference. First operand 299 states and 398 transitions. Second operand has 6 states, 4 states have (on average 9.25) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 18:40:56,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:56,375 INFO L93 Difference]: Finished difference Result 299 states and 398 transitions. [2024-11-10 18:40:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:40:56,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.25) internal successors, (37), 6 states have internal predecessors, (37), 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 60 [2024-11-10 18:40:56,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:56,378 INFO L225 Difference]: With dead ends: 299 [2024-11-10 18:40:56,378 INFO L226 Difference]: Without dead ends: 298 [2024-11-10 18:40:56,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:40:56,379 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 6 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:56,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 165 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:40:56,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-10 18:40:56,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-11-10 18:40:56,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 234 states have (on average 1.2521367521367521) internal successors, (293), 240 states have internal predecessors, (293), 39 states have call successors, (39), 12 states have call predecessors, (39), 15 states have return successors, (63), 45 states have call predecessors, (63), 39 states have call successors, (63) [2024-11-10 18:40:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 395 transitions. [2024-11-10 18:40:56,398 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 395 transitions. Word has length 60 [2024-11-10 18:40:56,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:56,398 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 395 transitions. [2024-11-10 18:40:56,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.25) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 18:40:56,398 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 395 transitions. [2024-11-10 18:40:56,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-10 18:40:56,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:56,399 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:56,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 18:40:56,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:56,606 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:56,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:56,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1961116973, now seen corresponding path program 1 times [2024-11-10 18:40:56,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:56,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558314150] [2024-11-10 18:40:56,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:56,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:40:56,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829374010] [2024-11-10 18:40:56,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:56,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:56,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:56,622 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:40:56,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 18:40:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:56,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 18:40:56,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:40:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 18:40:56,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:40:57,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:57,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558314150] [2024-11-10 18:40:57,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:40:57,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829374010] [2024-11-10 18:40:57,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829374010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:40:57,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:40:57,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-10 18:40:57,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084851464] [2024-11-10 18:40:57,011 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:40:57,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 18:40:57,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:57,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 18:40:57,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-10 18:40:57,012 INFO L87 Difference]: Start difference. First operand 298 states and 395 transitions. Second operand has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:57,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:57,415 INFO L93 Difference]: Finished difference Result 323 states and 416 transitions. [2024-11-10 18:40:57,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 18:40:57,415 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 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 61 [2024-11-10 18:40:57,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:57,417 INFO L225 Difference]: With dead ends: 323 [2024-11-10 18:40:57,417 INFO L226 Difference]: Without dead ends: 322 [2024-11-10 18:40:57,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:40:57,418 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 73 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:57,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 496 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:40:57,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-10 18:40:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 298. [2024-11-10 18:40:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 234 states have (on average 1.2478632478632479) internal successors, (292), 240 states have internal predecessors, (292), 39 states have call successors, (39), 12 states have call predecessors, (39), 15 states have return successors, (63), 45 states have call predecessors, (63), 39 states have call successors, (63) [2024-11-10 18:40:57,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 394 transitions. [2024-11-10 18:40:57,434 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 394 transitions. Word has length 61 [2024-11-10 18:40:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:57,434 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 394 transitions. [2024-11-10 18:40:57,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 394 transitions. [2024-11-10 18:40:57,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-10 18:40:57,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:57,435 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:57,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 18:40:57,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:57,636 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:57,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:57,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2005168360, now seen corresponding path program 1 times [2024-11-10 18:40:57,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:57,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360763978] [2024-11-10 18:40:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:57,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:57,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:57,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:57,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:57,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:57,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360763978] [2024-11-10 18:40:57,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360763978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:40:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957336753] [2024-11-10 18:40:57,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:57,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:57,754 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:40:57,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 18:40:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:57,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:40:57,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:40:57,956 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:57,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:40:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 18:40:58,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957336753] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:40:58,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:40:58,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-11-10 18:40:58,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143822069] [2024-11-10 18:40:58,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:40:58,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 18:40:58,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:58,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 18:40:58,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-10 18:40:58,052 INFO L87 Difference]: Start difference. First operand 298 states and 394 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:58,179 INFO L93 Difference]: Finished difference Result 560 states and 748 transitions. [2024-11-10 18:40:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 18:40:58,179 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 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 61 [2024-11-10 18:40:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:58,181 INFO L225 Difference]: With dead ends: 560 [2024-11-10 18:40:58,181 INFO L226 Difference]: Without dead ends: 308 [2024-11-10 18:40:58,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 117 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-10 18:40:58,185 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 20 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:58,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 371 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-10 18:40:58,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 301. [2024-11-10 18:40:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 237 states have (on average 1.240506329113924) internal successors, (294), 243 states have internal predecessors, (294), 39 states have call successors, (39), 12 states have call predecessors, (39), 15 states have return successors, (63), 45 states have call predecessors, (63), 39 states have call successors, (63) [2024-11-10 18:40:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 396 transitions. [2024-11-10 18:40:58,202 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 396 transitions. Word has length 61 [2024-11-10 18:40:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:58,202 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 396 transitions. [2024-11-10 18:40:58,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-10 18:40:58,203 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 396 transitions. [2024-11-10 18:40:58,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-10 18:40:58,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:58,203 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:58,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 18:40:58,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:58,404 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:58,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:58,405 INFO L85 PathProgramCache]: Analyzing trace with hash 226593935, now seen corresponding path program 1 times [2024-11-10 18:40:58,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:58,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612367335] [2024-11-10 18:40:58,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:58,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:40:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:40:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-10 18:40:58,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:58,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612367335] [2024-11-10 18:40:58,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612367335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:58,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:58,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:40:58,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551685139] [2024-11-10 18:40:58,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:58,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 18:40:58,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:58,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 18:40:58,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:40:58,511 INFO L87 Difference]: Start difference. First operand 301 states and 396 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 18:40:58,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:58,645 INFO L93 Difference]: Finished difference Result 608 states and 811 transitions. [2024-11-10 18:40:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:40:58,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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 70 [2024-11-10 18:40:58,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:58,648 INFO L225 Difference]: With dead ends: 608 [2024-11-10 18:40:58,649 INFO L226 Difference]: Without dead ends: 350 [2024-11-10 18:40:58,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 18:40:58,650 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 38 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 391 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 [2024-11-10 18:40:58,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 391 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:58,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-10 18:40:58,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 343. [2024-11-10 18:40:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 270 states have (on average 1.2555555555555555) internal successors, (339), 274 states have internal predecessors, (339), 45 states have call successors, (45), 15 states have call predecessors, (45), 18 states have return successors, (71), 53 states have call predecessors, (71), 45 states have call successors, (71) [2024-11-10 18:40:58,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 455 transitions. [2024-11-10 18:40:58,668 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 455 transitions. Word has length 70 [2024-11-10 18:40:58,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:58,668 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 455 transitions. [2024-11-10 18:40:58,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-10 18:40:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 455 transitions. [2024-11-10 18:40:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-10 18:40:58,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:58,669 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:58,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 18:40:58,669 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting binomialCoefficientErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:58,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:58,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1297449622, now seen corresponding path program 1 times [2024-11-10 18:40:58,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:58,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586098653] [2024-11-10 18:40:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:58,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:40:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:40:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 18:40:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-10 18:40:58,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:58,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586098653] [2024-11-10 18:40:58,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586098653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:40:58,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:40:58,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 18:40:58,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584225900] [2024-11-10 18:40:58,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:40:58,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 18:40:58,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:58,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 18:40:58,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:40:58,783 INFO L87 Difference]: Start difference. First operand 343 states and 455 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-10 18:40:58,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:58,904 INFO L93 Difference]: Finished difference Result 349 states and 455 transitions. [2024-11-10 18:40:58,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 18:40:58,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 72 [2024-11-10 18:40:58,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:58,907 INFO L225 Difference]: With dead ends: 349 [2024-11-10 18:40:58,907 INFO L226 Difference]: Without dead ends: 348 [2024-11-10 18:40:58,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-10 18:40:58,908 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 47 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:58,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 370 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:40:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-10 18:40:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 342. [2024-11-10 18:40:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 270 states have (on average 1.2222222222222223) internal successors, (330), 273 states have internal predecessors, (330), 45 states have call successors, (45), 15 states have call predecessors, (45), 18 states have return successors, (71), 53 states have call predecessors, (71), 45 states have call successors, (71) [2024-11-10 18:40:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 446 transitions. [2024-11-10 18:40:58,939 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 446 transitions. Word has length 72 [2024-11-10 18:40:58,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:58,939 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 446 transitions. [2024-11-10 18:40:58,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-10 18:40:58,940 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 446 transitions. [2024-11-10 18:40:58,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-10 18:40:58,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:58,940 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:58,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 18:40:58,941 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:58,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:58,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1566232621, now seen corresponding path program 1 times [2024-11-10 18:40:58,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:58,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036257627] [2024-11-10 18:40:58,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:58,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:40:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:40:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:40:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:40:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:40:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:40:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 18:40:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,081 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-10 18:40:59,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:40:59,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036257627] [2024-11-10 18:40:59,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036257627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:40:59,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917318173] [2024-11-10 18:40:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:59,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:40:59,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:40:59,084 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:40:59,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 18:40:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:40:59,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 18:40:59,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:40:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-10 18:40:59,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:40:59,415 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-10 18:40:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917318173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:40:59,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:40:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-10 18:40:59,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198541555] [2024-11-10 18:40:59,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:40:59,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 18:40:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:40:59,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 18:40:59,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-10 18:40:59,417 INFO L87 Difference]: Start difference. First operand 342 states and 446 transitions. Second operand has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 16 states have internal predecessors, (80), 10 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-10 18:40:59,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:40:59,677 INFO L93 Difference]: Finished difference Result 442 states and 574 transitions. [2024-11-10 18:40:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 18:40:59,678 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 16 states have internal predecessors, (80), 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 73 [2024-11-10 18:40:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:40:59,680 INFO L225 Difference]: With dead ends: 442 [2024-11-10 18:40:59,680 INFO L226 Difference]: Without dead ends: 441 [2024-11-10 18:40:59,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2024-11-10 18:40:59,681 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 120 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:40:59,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 606 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:40:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-10 18:40:59,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 422. [2024-11-10 18:40:59,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 332 states have (on average 1.216867469879518) internal successors, (404), 334 states have internal predecessors, (404), 60 states have call successors, (60), 18 states have call predecessors, (60), 21 states have return successors, (95), 69 states have call predecessors, (95), 60 states have call successors, (95) [2024-11-10 18:40:59,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 559 transitions. [2024-11-10 18:40:59,712 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 559 transitions. Word has length 73 [2024-11-10 18:40:59,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:40:59,712 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 559 transitions. [2024-11-10 18:40:59,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 16 states have internal predecessors, (80), 10 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-10 18:40:59,713 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 559 transitions. [2024-11-10 18:40:59,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-10 18:40:59,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:40:59,713 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:40:59,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 18:40:59,920 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,SelfDestructingSolverStorable24 [2024-11-10 18:40:59,921 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:40:59,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:40:59,922 INFO L85 PathProgramCache]: Analyzing trace with hash -618429986, now seen corresponding path program 2 times [2024-11-10 18:40:59,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:40:59,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372956294] [2024-11-10 18:40:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:40:59,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:40:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:00,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:00,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:00,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:00,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:00,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:41:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:00,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:00,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 18:41:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:00,083 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-10 18:41:00,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:00,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372956294] [2024-11-10 18:41:00,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372956294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:00,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923193222] [2024-11-10 18:41:00,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:41:00,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:00,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:00,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:00,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 18:41:00,138 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:41:00,139 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:41:00,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:41:00,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-10 18:41:00,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-10 18:41:00,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923193222] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:41:00,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:41:00,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2024-11-10 18:41:00,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154498312] [2024-11-10 18:41:00,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:00,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 18:41:00,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:00,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 18:41:00,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2024-11-10 18:41:00,495 INFO L87 Difference]: Start difference. First operand 422 states and 559 transitions. Second operand has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 18 states have internal predecessors, (96), 10 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-10 18:41:01,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:01,264 INFO L93 Difference]: Finished difference Result 519 states and 653 transitions. [2024-11-10 18:41:01,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-10 18:41:01,265 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 18 states have internal predecessors, (96), 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 78 [2024-11-10 18:41:01,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:01,267 INFO L225 Difference]: With dead ends: 519 [2024-11-10 18:41:01,267 INFO L226 Difference]: Without dead ends: 516 [2024-11-10 18:41:01,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=201, Invalid=1359, Unknown=0, NotChecked=0, Total=1560 [2024-11-10 18:41:01,269 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 219 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:01,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 929 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 18:41:01,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-10 18:41:01,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 496. [2024-11-10 18:41:01,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 390 states have (on average 1.2102564102564102) internal successors, (472), 396 states have internal predecessors, (472), 66 states have call successors, (66), 24 states have call predecessors, (66), 31 states have return successors, (105), 75 states have call predecessors, (105), 66 states have call successors, (105) [2024-11-10 18:41:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 643 transitions. [2024-11-10 18:41:01,298 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 643 transitions. Word has length 78 [2024-11-10 18:41:01,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:01,298 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 643 transitions. [2024-11-10 18:41:01,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 18 states have internal predecessors, (96), 10 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-10 18:41:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 643 transitions. [2024-11-10 18:41:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-10 18:41:01,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:01,299 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:01,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-10 18:41:01,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-10 18:41:01,500 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:01,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:01,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1205501909, now seen corresponding path program 1 times [2024-11-10 18:41:01,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:01,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739512821] [2024-11-10 18:41:01,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:01,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:41:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 18:41:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 18:41:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-10 18:41:01,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:01,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739512821] [2024-11-10 18:41:01,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739512821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:41:01,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:41:01,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 18:41:01,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464407041] [2024-11-10 18:41:01,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:41:01,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 18:41:01,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 18:41:01,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:41:01,683 INFO L87 Difference]: Start difference. First operand 496 states and 643 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-10 18:41:01,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:01,921 INFO L93 Difference]: Finished difference Result 917 states and 1206 transitions. [2024-11-10 18:41:01,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:41:01,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 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 82 [2024-11-10 18:41:01,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:01,924 INFO L225 Difference]: With dead ends: 917 [2024-11-10 18:41:01,924 INFO L226 Difference]: Without dead ends: 471 [2024-11-10 18:41:01,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-10 18:41:01,927 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 49 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:01,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 423 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:41:01,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-10 18:41:01,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 433. [2024-11-10 18:41:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 337 states have (on average 1.225519287833828) internal successors, (413), 350 states have internal predecessors, (413), 58 states have call successors, (58), 24 states have call predecessors, (58), 29 states have return successors, (81), 58 states have call predecessors, (81), 58 states have call successors, (81) [2024-11-10 18:41:01,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 552 transitions. [2024-11-10 18:41:01,951 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 552 transitions. Word has length 82 [2024-11-10 18:41:01,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:01,952 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 552 transitions. [2024-11-10 18:41:01,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-10 18:41:01,953 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 552 transitions. [2024-11-10 18:41:01,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-10 18:41:01,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:01,953 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-10 18:41:01,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 18:41:01,955 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:01,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1440772356, now seen corresponding path program 1 times [2024-11-10 18:41:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:01,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323132909] [2024-11-10 18:41:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:01,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:41:01,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991376336] [2024-11-10 18:41:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:01,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:01,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:01,976 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:01,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 18:41:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:02,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 18:41:02,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:02,164 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-10 18:41:02,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:02,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:02,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323132909] [2024-11-10 18:41:02,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:41:02,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991376336] [2024-11-10 18:41:02,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991376336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:02,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:41:02,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-10 18:41:02,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091281372] [2024-11-10 18:41:02,350 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:02,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 18:41:02,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:02,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 18:41:02,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-10 18:41:02,351 INFO L87 Difference]: Start difference. First operand 433 states and 552 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 5 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-10 18:41:02,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:02,620 INFO L93 Difference]: Finished difference Result 440 states and 554 transitions. [2024-11-10 18:41:02,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 18:41:02,621 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 5 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 86 [2024-11-10 18:41:02,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:02,623 INFO L225 Difference]: With dead ends: 440 [2024-11-10 18:41:02,624 INFO L226 Difference]: Without dead ends: 439 [2024-11-10 18:41:02,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-11-10 18:41:02,625 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 41 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:02,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 588 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:41:02,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-10 18:41:02,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 433. [2024-11-10 18:41:02,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 337 states have (on average 1.2195845697329377) internal successors, (411), 350 states have internal predecessors, (411), 58 states have call successors, (58), 24 states have call predecessors, (58), 29 states have return successors, (81), 58 states have call predecessors, (81), 58 states have call successors, (81) [2024-11-10 18:41:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 550 transitions. [2024-11-10 18:41:02,653 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 550 transitions. Word has length 86 [2024-11-10 18:41:02,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:02,653 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 550 transitions. [2024-11-10 18:41:02,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 10 states have internal predecessors, (53), 5 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-10 18:41:02,653 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 550 transitions. [2024-11-10 18:41:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-10 18:41:02,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:02,655 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:02,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-10 18:41:02,859 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,SelfDestructingSolverStorable27 [2024-11-10 18:41:02,860 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting binomialCoefficientErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:02,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:02,861 INFO L85 PathProgramCache]: Analyzing trace with hash -842054326, now seen corresponding path program 1 times [2024-11-10 18:41:02,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:02,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919196690] [2024-11-10 18:41:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:02,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:41:02,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000618848] [2024-11-10 18:41:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:02,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:02,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:02,882 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:02,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 18:41:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:02,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:41:02,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-10 18:41:03,039 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:41:03,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:03,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919196690] [2024-11-10 18:41:03,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:41:03,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000618848] [2024-11-10 18:41:03,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000618848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:41:03,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:41:03,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:41:03,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036290828] [2024-11-10 18:41:03,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:41:03,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 18:41:03,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:03,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 18:41:03,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:41:03,042 INFO L87 Difference]: Start difference. First operand 433 states and 550 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-10 18:41:03,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:03,108 INFO L93 Difference]: Finished difference Result 433 states and 550 transitions. [2024-11-10 18:41:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 18:41:03,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 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 91 [2024-11-10 18:41:03,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:03,112 INFO L225 Difference]: With dead ends: 433 [2024-11-10 18:41:03,112 INFO L226 Difference]: Without dead ends: 432 [2024-11-10 18:41:03,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 18:41:03,113 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 9 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:03,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 172 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:41:03,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-10 18:41:03,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2024-11-10 18:41:03,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 337 states have (on average 1.1899109792284865) internal successors, (401), 349 states have internal predecessors, (401), 58 states have call successors, (58), 24 states have call predecessors, (58), 29 states have return successors, (81), 58 states have call predecessors, (81), 58 states have call successors, (81) [2024-11-10 18:41:03,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 540 transitions. [2024-11-10 18:41:03,136 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 540 transitions. Word has length 91 [2024-11-10 18:41:03,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:03,138 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 540 transitions. [2024-11-10 18:41:03,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-10 18:41:03,138 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 540 transitions. [2024-11-10 18:41:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 18:41:03,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:03,139 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:03,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-10 18:41:03,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-10 18:41:03,341 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:03,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:03,341 INFO L85 PathProgramCache]: Analyzing trace with hash -333880339, now seen corresponding path program 1 times [2024-11-10 18:41:03,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:03,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098230189] [2024-11-10 18:41:03,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:03,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:41:03,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743467036] [2024-11-10 18:41:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:03,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:03,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:03,359 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:03,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-10 18:41:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:03,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 18:41:03,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-10 18:41:03,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:04,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:04,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098230189] [2024-11-10 18:41:04,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:41:04,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743467036] [2024-11-10 18:41:04,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743467036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:04,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:41:04,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-10 18:41:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307048094] [2024-11-10 18:41:04,166 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:04,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 18:41:04,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:04,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 18:41:04,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-10 18:41:04,167 INFO L87 Difference]: Start difference. First operand 432 states and 540 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 6 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-10 18:41:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:04,612 INFO L93 Difference]: Finished difference Result 532 states and 692 transitions. [2024-11-10 18:41:04,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 18:41:04,613 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 6 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 92 [2024-11-10 18:41:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:04,616 INFO L225 Difference]: With dead ends: 532 [2024-11-10 18:41:04,616 INFO L226 Difference]: Without dead ends: 531 [2024-11-10 18:41:04,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-10 18:41:04,617 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 72 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:04,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 581 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 18:41:04,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-10 18:41:04,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 457. [2024-11-10 18:41:04,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 358 states have (on average 1.1787709497206704) internal successors, (422), 368 states have internal predecessors, (422), 60 states have call successors, (60), 24 states have call predecessors, (60), 31 states have return successors, (90), 64 states have call predecessors, (90), 60 states have call successors, (90) [2024-11-10 18:41:04,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 572 transitions. [2024-11-10 18:41:04,657 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 572 transitions. Word has length 92 [2024-11-10 18:41:04,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:04,658 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 572 transitions. [2024-11-10 18:41:04,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 6 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-10 18:41:04,658 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 572 transitions. [2024-11-10 18:41:04,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 18:41:04,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:04,659 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:04,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-10 18:41:04,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:04,859 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:04,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:04,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1760355928, now seen corresponding path program 2 times [2024-11-10 18:41:04,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:04,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712267565] [2024-11-10 18:41:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:41:04,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995115608] [2024-11-10 18:41:04,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:41:04,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:04,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:04,877 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:04,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-10 18:41:04,941 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:41:04,941 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:41:04,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-10 18:41:04,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 50 proven. 19 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-10 18:41:05,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:47,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:47,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712267565] [2024-11-10 18:41:47,657 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:41:47,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995115608] [2024-11-10 18:41:47,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995115608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:47,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:41:47,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-10 18:41:47,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667444303] [2024-11-10 18:41:47,658 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:47,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 18:41:47,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:47,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 18:41:47,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=350, Unknown=16, NotChecked=0, Total=420 [2024-11-10 18:41:47,660 INFO L87 Difference]: Start difference. First operand 457 states and 572 transitions. Second operand has 15 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-10 18:41:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:49,234 INFO L93 Difference]: Finished difference Result 532 states and 682 transitions. [2024-11-10 18:41:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 18:41:49,234 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 93 [2024-11-10 18:41:49,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:49,237 INFO L225 Difference]: With dead ends: 532 [2024-11-10 18:41:49,237 INFO L226 Difference]: Without dead ends: 530 [2024-11-10 18:41:49,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 40.3s TimeCoverageRelationStatistics Valid=86, Invalid=498, Unknown=16, NotChecked=0, Total=600 [2024-11-10 18:41:49,238 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 82 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:49,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 390 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:41:49,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-10 18:41:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 474. [2024-11-10 18:41:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 372 states have (on average 1.1720430107526882) internal successors, (436), 381 states have internal predecessors, (436), 62 states have call successors, (62), 24 states have call predecessors, (62), 32 states have return successors, (96), 68 states have call predecessors, (96), 62 states have call successors, (96) [2024-11-10 18:41:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 594 transitions. [2024-11-10 18:41:49,264 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 594 transitions. Word has length 93 [2024-11-10 18:41:49,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:49,264 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 594 transitions. [2024-11-10 18:41:49,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.0) internal successors, (52), 14 states have internal predecessors, (52), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-10 18:41:49,265 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 594 transitions. [2024-11-10 18:41:49,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-10 18:41:49,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:49,266 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:49,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-10 18:41:49,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-10 18:41:49,467 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:49,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:49,467 INFO L85 PathProgramCache]: Analyzing trace with hash -746810439, now seen corresponding path program 3 times [2024-11-10 18:41:49,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:49,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957914543] [2024-11-10 18:41:49,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:49,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:41:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 18:41:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 18:41:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 43 proven. 37 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 18:41:49,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:49,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957914543] [2024-11-10 18:41:49,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957914543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:49,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745688471] [2024-11-10 18:41:49,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:41:49,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:49,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:49,695 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:49,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-10 18:41:49,754 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-10 18:41:49,754 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:41:49,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:41:49,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 126 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-10 18:41:49,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 40 proven. 41 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-10 18:41:50,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745688471] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:41:50,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:41:50,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 15 [2024-11-10 18:41:50,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160664874] [2024-11-10 18:41:50,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:50,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 18:41:50,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:50,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 18:41:50,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-10 18:41:50,089 INFO L87 Difference]: Start difference. First operand 474 states and 594 transitions. Second operand has 15 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 10 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-10 18:41:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:50,360 INFO L93 Difference]: Finished difference Result 939 states and 1201 transitions. [2024-11-10 18:41:50,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:41:50,360 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 10 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 9 states have call successors, (16) Word has length 104 [2024-11-10 18:41:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:50,363 INFO L225 Difference]: With dead ends: 939 [2024-11-10 18:41:50,364 INFO L226 Difference]: Without dead ends: 509 [2024-11-10 18:41:50,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 218 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:41:50,366 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 37 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:50,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 548 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:41:50,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-10 18:41:50,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 459. [2024-11-10 18:41:50,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 360 states have (on average 1.1777777777777778) internal successors, (424), 370 states have internal predecessors, (424), 60 states have call successors, (60), 24 states have call predecessors, (60), 31 states have return successors, (88), 64 states have call predecessors, (88), 60 states have call successors, (88) [2024-11-10 18:41:50,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 572 transitions. [2024-11-10 18:41:50,394 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 572 transitions. Word has length 104 [2024-11-10 18:41:50,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:50,397 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 572 transitions. [2024-11-10 18:41:50,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 10 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 7 states have call predecessors, (16), 9 states have call successors, (16) [2024-11-10 18:41:50,397 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 572 transitions. [2024-11-10 18:41:50,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-10 18:41:50,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:50,398 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:50,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-10 18:41:50,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:50,599 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:50,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:50,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1301292007, now seen corresponding path program 1 times [2024-11-10 18:41:50,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:50,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137364909] [2024-11-10 18:41:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:50,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:41:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:41:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:41:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-10 18:41:50,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:50,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137364909] [2024-11-10 18:41:50,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137364909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:50,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637528558] [2024-11-10 18:41:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:50,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:50,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:50,718 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:50,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-10 18:41:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:50,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 18:41:50,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-10 18:41:50,811 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-10 18:41:50,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637528558] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:41:50,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:41:50,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-10 18:41:50,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687981487] [2024-11-10 18:41:50,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:50,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 18:41:50,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:50,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 18:41:50,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:41:50,937 INFO L87 Difference]: Start difference. First operand 459 states and 572 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-10 18:41:51,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:51,034 INFO L93 Difference]: Finished difference Result 551 states and 696 transitions. [2024-11-10 18:41:51,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 18:41:51,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 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 101 [2024-11-10 18:41:51,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:51,037 INFO L225 Difference]: With dead ends: 551 [2024-11-10 18:41:51,037 INFO L226 Difference]: Without dead ends: 550 [2024-11-10 18:41:51,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:41:51,038 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 10 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:51,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 384 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:41:51,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-10 18:41:51,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-11-10 18:41:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 440 states have (on average 1.1681818181818182) internal successors, (514), 449 states have internal predecessors, (514), 71 states have call successors, (71), 24 states have call predecessors, (71), 31 states have return successors, (99), 76 states have call predecessors, (99), 71 states have call successors, (99) [2024-11-10 18:41:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 684 transitions. [2024-11-10 18:41:51,090 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 684 transitions. Word has length 101 [2024-11-10 18:41:51,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:51,090 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 684 transitions. [2024-11-10 18:41:51,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 5 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-10 18:41:51,090 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 684 transitions. [2024-11-10 18:41:51,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-10 18:41:51,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:51,091 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:51,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-10 18:41:51,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:51,293 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:51,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:51,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1384516800, now seen corresponding path program 2 times [2024-11-10 18:41:51,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:51,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918657636] [2024-11-10 18:41:51,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:51,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 18:41:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 18:41:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 18:41:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:51,560 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 74 proven. 5 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 18:41:51,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:51,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918657636] [2024-11-10 18:41:51,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918657636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:51,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352242814] [2024-11-10 18:41:51,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:41:51,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:51,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:51,564 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:51,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-10 18:41:51,625 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:41:51,625 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:41:51,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 18:41:51,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 71 proven. 8 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-10 18:41:51,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 71 proven. 9 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-10 18:41:52,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352242814] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:41:52,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:41:52,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 21 [2024-11-10 18:41:52,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611998416] [2024-11-10 18:41:52,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:52,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 18:41:52,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:52,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 18:41:52,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-10 18:41:52,128 INFO L87 Difference]: Start difference. First operand 550 states and 684 transitions. Second operand has 21 states, 21 states have (on average 4.857142857142857) internal successors, (102), 19 states have internal predecessors, (102), 12 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-10 18:41:52,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:52,563 INFO L93 Difference]: Finished difference Result 1080 states and 1369 transitions. [2024-11-10 18:41:52,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 18:41:52,564 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.857142857142857) internal successors, (102), 19 states have internal predecessors, (102), 12 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 103 [2024-11-10 18:41:52,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:52,567 INFO L225 Difference]: With dead ends: 1080 [2024-11-10 18:41:52,567 INFO L226 Difference]: Without dead ends: 565 [2024-11-10 18:41:52,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 210 SyntacticMatches, 8 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-11-10 18:41:52,570 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 71 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:52,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 618 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 18:41:52,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-10 18:41:52,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 530. [2024-11-10 18:41:52,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 423 states have (on average 1.16548463356974) internal successors, (493), 432 states have internal predecessors, (493), 70 states have call successors, (70), 24 states have call predecessors, (70), 29 states have return successors, (91), 73 states have call predecessors, (91), 70 states have call successors, (91) [2024-11-10 18:41:52,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 654 transitions. [2024-11-10 18:41:52,616 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 654 transitions. Word has length 103 [2024-11-10 18:41:52,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:52,616 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 654 transitions. [2024-11-10 18:41:52,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.857142857142857) internal successors, (102), 19 states have internal predecessors, (102), 12 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-10 18:41:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 654 transitions. [2024-11-10 18:41:52,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-10 18:41:52,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:52,619 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:52,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-10 18:41:52,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-10 18:41:52,824 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:52,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:52,824 INFO L85 PathProgramCache]: Analyzing trace with hash 717282597, now seen corresponding path program 1 times [2024-11-10 18:41:52,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:52,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242414125] [2024-11-10 18:41:52,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:52,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:52,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:52,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:52,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:41:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:41:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:41:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 18:41:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-10 18:41:53,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:53,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242414125] [2024-11-10 18:41:53,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242414125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:53,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669976219] [2024-11-10 18:41:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:53,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:53,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:53,058 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:53,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-10 18:41:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:53,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 18:41:53,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-10 18:41:53,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-10 18:41:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669976219] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:41:53,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:41:53,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 15 [2024-11-10 18:41:53,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084756912] [2024-11-10 18:41:53,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:53,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 18:41:53,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:53,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 18:41:53,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-10 18:41:53,447 INFO L87 Difference]: Start difference. First operand 530 states and 654 transitions. Second operand has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-10 18:41:53,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:53,810 INFO L93 Difference]: Finished difference Result 1008 states and 1264 transitions. [2024-11-10 18:41:53,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 18:41:53,811 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 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 120 [2024-11-10 18:41:53,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:53,814 INFO L225 Difference]: With dead ends: 1008 [2024-11-10 18:41:53,814 INFO L226 Difference]: Without dead ends: 546 [2024-11-10 18:41:53,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 250 SyntacticMatches, 10 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-10 18:41:53,816 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 62 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:53,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 605 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:41:53,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-10 18:41:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 541. [2024-11-10 18:41:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 432 states have (on average 1.1643518518518519) internal successors, (503), 441 states have internal predecessors, (503), 71 states have call successors, (71), 25 states have call predecessors, (71), 30 states have return successors, (91), 74 states have call predecessors, (91), 71 states have call successors, (91) [2024-11-10 18:41:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 665 transitions. [2024-11-10 18:41:53,844 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 665 transitions. Word has length 120 [2024-11-10 18:41:53,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:53,844 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 665 transitions. [2024-11-10 18:41:53,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 6 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-10 18:41:53,844 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 665 transitions. [2024-11-10 18:41:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-10 18:41:53,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:53,845 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 6, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:53,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-10 18:41:54,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:54,046 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:54,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:54,047 INFO L85 PathProgramCache]: Analyzing trace with hash 761333984, now seen corresponding path program 1 times [2024-11-10 18:41:54,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:54,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254628887] [2024-11-10 18:41:54,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:54,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:41:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:41:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:41:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 24 proven. 11 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-10 18:41:54,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:54,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254628887] [2024-11-10 18:41:54,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254628887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:54,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860309964] [2024-11-10 18:41:54,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:54,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:54,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:54,203 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:54,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-10 18:41:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:54,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:41:54,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:54,330 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 24 proven. 11 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-10 18:41:54,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 24 proven. 11 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-10 18:41:54,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860309964] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:41:54,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:41:54,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-10 18:41:54,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771158512] [2024-11-10 18:41:54,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:54,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 18:41:54,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 18:41:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:41:54,561 INFO L87 Difference]: Start difference. First operand 541 states and 665 transitions. Second operand has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 12 states have internal predecessors, (81), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-10 18:41:54,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:54,959 INFO L93 Difference]: Finished difference Result 799 states and 984 transitions. [2024-11-10 18:41:54,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 18:41:54,960 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 12 states have internal predecessors, (81), 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 120 [2024-11-10 18:41:54,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:54,964 INFO L225 Difference]: With dead ends: 799 [2024-11-10 18:41:54,964 INFO L226 Difference]: Without dead ends: 787 [2024-11-10 18:41:54,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-10 18:41:54,965 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 124 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:54,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 603 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:41:54,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-11-10 18:41:54,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 691. [2024-11-10 18:41:55,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 556 states have (on average 1.1744604316546763) internal successors, (653), 562 states have internal predecessors, (653), 90 states have call successors, (90), 31 states have call predecessors, (90), 37 states have return successors, (120), 97 states have call predecessors, (120), 90 states have call successors, (120) [2024-11-10 18:41:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 863 transitions. [2024-11-10 18:41:55,003 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 863 transitions. Word has length 120 [2024-11-10 18:41:55,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:55,003 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 863 transitions. [2024-11-10 18:41:55,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 6.230769230769231) internal successors, (81), 12 states have internal predecessors, (81), 7 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-10 18:41:55,004 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 863 transitions. [2024-11-10 18:41:55,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-10 18:41:55,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:55,005 INFO L215 NwaCegarLoop]: trace histogram [11, 9, 7, 4, 4, 4, 4, 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] [2024-11-10 18:41:55,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-10 18:41:55,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:55,210 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:55,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:55,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1402061498, now seen corresponding path program 2 times [2024-11-10 18:41:55,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:55,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748402901] [2024-11-10 18:41:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:55,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:41:55,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208006293] [2024-11-10 18:41:55,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:41:55,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:55,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:55,225 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:55,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-10 18:41:55,306 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:41:55,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:41:55,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 18:41:55,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:55,495 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 75 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-10 18:41:55,495 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:55,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:55,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748402901] [2024-11-10 18:41:55,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:41:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208006293] [2024-11-10 18:41:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208006293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:55,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:41:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-10 18:41:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176091728] [2024-11-10 18:41:55,637 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:55,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 18:41:55,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:55,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 18:41:55,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-10 18:41:55,638 INFO L87 Difference]: Start difference. First operand 691 states and 863 transitions. Second operand has 17 states, 15 states have (on average 4.066666666666666) internal successors, (61), 14 states have internal predecessors, (61), 7 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-10 18:41:56,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:56,175 INFO L93 Difference]: Finished difference Result 820 states and 1018 transitions. [2024-11-10 18:41:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 18:41:56,176 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.066666666666666) internal successors, (61), 14 states have internal predecessors, (61), 7 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 125 [2024-11-10 18:41:56,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:56,180 INFO L225 Difference]: With dead ends: 820 [2024-11-10 18:41:56,180 INFO L226 Difference]: Without dead ends: 819 [2024-11-10 18:41:56,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2024-11-10 18:41:56,181 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 95 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:56,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 537 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:41:56,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2024-11-10 18:41:56,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 797. [2024-11-10 18:41:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 638 states have (on average 1.177115987460815) internal successors, (751), 644 states have internal predecessors, (751), 106 states have call successors, (106), 38 states have call predecessors, (106), 45 states have return successors, (140), 114 states have call predecessors, (140), 106 states have call successors, (140) [2024-11-10 18:41:56,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 997 transitions. [2024-11-10 18:41:56,222 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 997 transitions. Word has length 125 [2024-11-10 18:41:56,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:56,222 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 997 transitions. [2024-11-10 18:41:56,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.066666666666666) internal successors, (61), 14 states have internal predecessors, (61), 7 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-10 18:41:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 997 transitions. [2024-11-10 18:41:56,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-10 18:41:56,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:56,224 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:56,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-10 18:41:56,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:56,429 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:56,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:56,429 INFO L85 PathProgramCache]: Analyzing trace with hash 574488240, now seen corresponding path program 2 times [2024-11-10 18:41:56,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:56,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198531967] [2024-11-10 18:41:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:56,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:41:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:41:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:41:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-10 18:41:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-10 18:41:56,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:56,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198531967] [2024-11-10 18:41:56,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198531967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:41:56,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:41:56,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 18:41:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920682733] [2024-11-10 18:41:56,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:41:56,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:41:56,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:56,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:41:56,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:41:56,550 INFO L87 Difference]: Start difference. First operand 797 states and 997 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-10 18:41:56,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:56,649 INFO L93 Difference]: Finished difference Result 1220 states and 1521 transitions. [2024-11-10 18:41:56,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:41:56,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 126 [2024-11-10 18:41:56,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:56,654 INFO L225 Difference]: With dead ends: 1220 [2024-11-10 18:41:56,654 INFO L226 Difference]: Without dead ends: 729 [2024-11-10 18:41:56,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:41:56,656 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 19 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:56,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 193 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:41:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-10 18:41:56,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 728. [2024-11-10 18:41:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 585 states have (on average 1.1641025641025642) internal successors, (681), 589 states have internal predecessors, (681), 94 states have call successors, (94), 35 states have call predecessors, (94), 41 states have return successors, (124), 103 states have call predecessors, (124), 94 states have call successors, (124) [2024-11-10 18:41:56,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 899 transitions. [2024-11-10 18:41:56,693 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 899 transitions. Word has length 126 [2024-11-10 18:41:56,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:56,694 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 899 transitions. [2024-11-10 18:41:56,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-10 18:41:56,694 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 899 transitions. [2024-11-10 18:41:56,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-10 18:41:56,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:56,696 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:56,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-10 18:41:56,696 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:56,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:56,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1368460290, now seen corresponding path program 1 times [2024-11-10 18:41:56,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:56,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787091020] [2024-11-10 18:41:56,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:56,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:41:56,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [561953928] [2024-11-10 18:41:56,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:56,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:56,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:56,719 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:56,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-10 18:41:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:56,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:41:56,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 48 proven. 11 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-10 18:41:56,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:57,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:57,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787091020] [2024-11-10 18:41:57,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:41:57,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561953928] [2024-11-10 18:41:57,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561953928] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:57,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:41:57,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-10 18:41:57,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841001614] [2024-11-10 18:41:57,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:57,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 18:41:57,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:57,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 18:41:57,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 18:41:57,159 INFO L87 Difference]: Start difference. First operand 728 states and 899 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-10 18:41:57,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:57,363 INFO L93 Difference]: Finished difference Result 765 states and 937 transitions. [2024-11-10 18:41:57,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 18:41:57,363 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 128 [2024-11-10 18:41:57,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:57,366 INFO L225 Difference]: With dead ends: 765 [2024-11-10 18:41:57,366 INFO L226 Difference]: Without dead ends: 764 [2024-11-10 18:41:57,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-10 18:41:57,367 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 67 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:57,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 349 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:41:57,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-10 18:41:57,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 612. [2024-11-10 18:41:57,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 489 states have (on average 1.1513292433537832) internal successors, (563), 495 states have internal predecessors, (563), 77 states have call successors, (77), 32 states have call predecessors, (77), 38 states have return successors, (99), 84 states have call predecessors, (99), 77 states have call successors, (99) [2024-11-10 18:41:57,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 739 transitions. [2024-11-10 18:41:57,402 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 739 transitions. Word has length 128 [2024-11-10 18:41:57,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:57,403 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 739 transitions. [2024-11-10 18:41:57,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-10 18:41:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 739 transitions. [2024-11-10 18:41:57,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-10 18:41:57,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:57,404 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:57,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-10 18:41:57,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-10 18:41:57,605 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:57,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:57,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1535318957, now seen corresponding path program 1 times [2024-11-10 18:41:57,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:57,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103643111] [2024-11-10 18:41:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:57,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:41:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:41:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:41:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:41:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:41:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:41:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:41:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:41:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-10 18:41:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 18:41:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-10 18:41:57,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:57,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103643111] [2024-11-10 18:41:57,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103643111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:57,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988070095] [2024-11-10 18:41:57,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:57,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:57,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:57,772 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:57,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-10 18:41:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:41:57,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:41:57,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-10 18:41:57,988 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 18:41:57,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988070095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:41:57,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:41:57,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 15 [2024-11-10 18:41:57,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917347050] [2024-11-10 18:41:57,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:41:57,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 18:41:57,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:57,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 18:41:57,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-10 18:41:57,990 INFO L87 Difference]: Start difference. First operand 612 states and 739 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-10 18:41:58,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:58,227 INFO L93 Difference]: Finished difference Result 1034 states and 1255 transitions. [2024-11-10 18:41:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 18:41:58,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 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 129 [2024-11-10 18:41:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:58,231 INFO L225 Difference]: With dead ends: 1034 [2024-11-10 18:41:58,231 INFO L226 Difference]: Without dead ends: 593 [2024-11-10 18:41:58,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:41:58,233 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 46 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:58,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 451 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:41:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-10 18:41:58,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 588. [2024-11-10 18:41:58,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 470 states have (on average 1.151063829787234) internal successors, (541), 477 states have internal predecessors, (541), 73 states have call successors, (73), 32 states have call predecessors, (73), 37 states have return successors, (90), 78 states have call predecessors, (90), 73 states have call successors, (90) [2024-11-10 18:41:58,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 704 transitions. [2024-11-10 18:41:58,266 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 704 transitions. Word has length 129 [2024-11-10 18:41:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:58,267 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 704 transitions. [2024-11-10 18:41:58,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-10 18:41:58,267 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 704 transitions. [2024-11-10 18:41:58,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-10 18:41:58,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:58,269 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 7, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:58,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-10 18:41:58,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-10 18:41:58,469 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:58,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1119453254, now seen corresponding path program 3 times [2024-11-10 18:41:58,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:58,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516934499] [2024-11-10 18:41:58,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:58,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:41:58,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155969742] [2024-11-10 18:41:58,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:41:58,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:58,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:41:58,487 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:41:58,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-10 18:41:58,547 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 18:41:58,547 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:41:58,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 18:41:58,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:41:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 81 proven. 23 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-10 18:41:58,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:41:59,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:41:59,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516934499] [2024-11-10 18:41:59,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:41:59,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155969742] [2024-11-10 18:41:59,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155969742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:41:59,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:41:59,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-10 18:41:59,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416187796] [2024-11-10 18:41:59,103 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:41:59,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 18:41:59,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:41:59,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 18:41:59,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-10 18:41:59,104 INFO L87 Difference]: Start difference. First operand 588 states and 704 transitions. Second operand has 17 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-10 18:41:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:41:59,660 INFO L93 Difference]: Finished difference Result 638 states and 775 transitions. [2024-11-10 18:41:59,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 18:41:59,660 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 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 131 [2024-11-10 18:41:59,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:41:59,663 INFO L225 Difference]: With dead ends: 638 [2024-11-10 18:41:59,663 INFO L226 Difference]: Without dead ends: 637 [2024-11-10 18:41:59,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2024-11-10 18:41:59,664 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 89 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 18:41:59,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 776 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 18:41:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-10 18:41:59,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 615. [2024-11-10 18:41:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 495 states have (on average 1.1434343434343435) internal successors, (566), 497 states have internal predecessors, (566), 73 states have call successors, (73), 32 states have call predecessors, (73), 39 states have return successors, (99), 85 states have call predecessors, (99), 73 states have call successors, (99) [2024-11-10 18:41:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 738 transitions. [2024-11-10 18:41:59,703 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 738 transitions. Word has length 131 [2024-11-10 18:41:59,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:41:59,703 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 738 transitions. [2024-11-10 18:41:59,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 6 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-10 18:41:59,704 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 738 transitions. [2024-11-10 18:41:59,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-10 18:41:59,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:41:59,706 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 7, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:41:59,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-10 18:41:59,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:41:59,911 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:41:59,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:41:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1876117829, now seen corresponding path program 4 times [2024-11-10 18:41:59,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:41:59,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524180382] [2024-11-10 18:41:59,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:41:59,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:41:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:42:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:42:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:42:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:42:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:42:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:42:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:42:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:42:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 18:42:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:00,219 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 127 proven. 28 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-10 18:42:00,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:42:00,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524180382] [2024-11-10 18:42:00,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524180382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:42:00,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040614243] [2024-11-10 18:42:00,220 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 18:42:00,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:42:00,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:42:00,222 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:42:00,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-10 18:42:00,284 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 18:42:00,284 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:42:00,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 18:42:00,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:42:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 124 proven. 31 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-10 18:42:00,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:42:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 124 proven. 32 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-10 18:42:00,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040614243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:42:00,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:42:00,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 15] total 19 [2024-11-10 18:42:00,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314150980] [2024-11-10 18:42:00,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:42:00,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 18:42:00,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:42:00,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 18:42:00,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-10 18:42:00,683 INFO L87 Difference]: Start difference. First operand 615 states and 738 transitions. Second operand has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 17 states have internal predecessors, (93), 11 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-10 18:42:01,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:42:01,130 INFO L93 Difference]: Finished difference Result 1157 states and 1412 transitions. [2024-11-10 18:42:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 18:42:01,131 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 17 states have internal predecessors, (93), 11 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 9 states have call successors, (12) Word has length 142 [2024-11-10 18:42:01,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:42:01,136 INFO L225 Difference]: With dead ends: 1157 [2024-11-10 18:42:01,136 INFO L226 Difference]: Without dead ends: 625 [2024-11-10 18:42:01,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 297 SyntacticMatches, 11 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2024-11-10 18:42:01,141 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 50 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:42:01,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 738 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:42:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-10 18:42:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 606. [2024-11-10 18:42:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 487 states have (on average 1.1437371663244353) internal successors, (557), 490 states have internal predecessors, (557), 73 states have call successors, (73), 32 states have call predecessors, (73), 38 states have return successors, (95), 83 states have call predecessors, (95), 73 states have call successors, (95) [2024-11-10 18:42:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 725 transitions. [2024-11-10 18:42:01,181 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 725 transitions. Word has length 142 [2024-11-10 18:42:01,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:42:01,181 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 725 transitions. [2024-11-10 18:42:01,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.166666666666667) internal successors, (93), 17 states have internal predecessors, (93), 11 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-10 18:42:01,182 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 725 transitions. [2024-11-10 18:42:01,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-10 18:42:01,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:42:01,184 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:42:01,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-10 18:42:01,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:42:01,384 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:42:01,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:42:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 269932493, now seen corresponding path program 2 times [2024-11-10 18:42:01,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:42:01,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947796421] [2024-11-10 18:42:01,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:42:01,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:42:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:42:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:42:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:42:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:42:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:42:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:42:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:42:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:42:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-10 18:42:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 75 proven. 19 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-10 18:42:01,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:42:01,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947796421] [2024-11-10 18:42:01,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947796421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:42:01,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545394852] [2024-11-10 18:42:01,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:42:01,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:42:01,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:42:01,602 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:42:01,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-10 18:42:01,674 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:42:01,674 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:42:01,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 18:42:01,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:42:01,772 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 75 proven. 19 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-10 18:42:01,772 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:42:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 75 proven. 19 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-10 18:42:02,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545394852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:42:02,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:42:02,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 14 [2024-11-10 18:42:02,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129019557] [2024-11-10 18:42:02,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:42:02,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 18:42:02,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:42:02,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 18:42:02,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-10 18:42:02,013 INFO L87 Difference]: Start difference. First operand 606 states and 725 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-10 18:42:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:42:02,372 INFO L93 Difference]: Finished difference Result 1209 states and 1476 transitions. [2024-11-10 18:42:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 18:42:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 139 [2024-11-10 18:42:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:42:02,377 INFO L225 Difference]: With dead ends: 1209 [2024-11-10 18:42:02,377 INFO L226 Difference]: Without dead ends: 773 [2024-11-10 18:42:02,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 292 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-10 18:42:02,379 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 56 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 18:42:02,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 377 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 18:42:02,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-10 18:42:02,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 708. [2024-11-10 18:42:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 573 states have (on average 1.1535776614310647) internal successors, (661), 573 states have internal predecessors, (661), 86 states have call successors, (86), 36 states have call predecessors, (86), 41 states have return successors, (112), 98 states have call predecessors, (112), 86 states have call successors, (112) [2024-11-10 18:42:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 859 transitions. [2024-11-10 18:42:02,417 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 859 transitions. Word has length 139 [2024-11-10 18:42:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:42:02,419 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 859 transitions. [2024-11-10 18:42:02,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-10 18:42:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 859 transitions. [2024-11-10 18:42:02,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-10 18:42:02,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:42:02,420 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:42:02,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-10 18:42:02,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:42:02,625 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting binomialCoefficientErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:42:02,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:42:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1533858524, now seen corresponding path program 2 times [2024-11-10 18:42:02,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:42:02,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939710291] [2024-11-10 18:42:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:42:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:42:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:42:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:42:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:42:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:42:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:42:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:42:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:42:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:42:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-10 18:42:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-10 18:42:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:02,805 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-10 18:42:02,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:42:02,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939710291] [2024-11-10 18:42:02,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939710291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:42:02,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932447750] [2024-11-10 18:42:02,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:42:02,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:42:02,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:42:02,808 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:42:02,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-10 18:42:02,856 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 18:42:02,856 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:42:02,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:42:02,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:42:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-10 18:42:02,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:42:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-10 18:42:03,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932447750] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:42:03,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:42:03,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 14 [2024-11-10 18:42:03,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625865963] [2024-11-10 18:42:03,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:42:03,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 18:42:03,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:42:03,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 18:42:03,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-10 18:42:03,194 INFO L87 Difference]: Start difference. First operand 708 states and 859 transitions. Second operand has 15 states, 14 states have (on average 6.5) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-10 18:42:03,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:42:03,484 INFO L93 Difference]: Finished difference Result 776 states and 934 transitions. [2024-11-10 18:42:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 18:42:03,485 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.5) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 140 [2024-11-10 18:42:03,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:42:03,487 INFO L225 Difference]: With dead ends: 776 [2024-11-10 18:42:03,487 INFO L226 Difference]: Without dead ends: 775 [2024-11-10 18:42:03,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2024-11-10 18:42:03,488 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 146 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 18:42:03,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 435 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 18:42:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2024-11-10 18:42:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 708. [2024-11-10 18:42:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 573 states have (on average 1.150087260034904) internal successors, (659), 573 states have internal predecessors, (659), 86 states have call successors, (86), 36 states have call predecessors, (86), 41 states have return successors, (112), 98 states have call predecessors, (112), 86 states have call successors, (112) [2024-11-10 18:42:03,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 857 transitions. [2024-11-10 18:42:03,529 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 857 transitions. Word has length 140 [2024-11-10 18:42:03,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:42:03,529 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 857 transitions. [2024-11-10 18:42:03,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.5) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-10 18:42:03,530 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 857 transitions. [2024-11-10 18:42:03,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-10 18:42:03,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:42:03,530 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:42:03,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-10 18:42:03,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-10 18:42:03,731 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:42:03,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:42:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash 9825700, now seen corresponding path program 1 times [2024-11-10 18:42:03,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:42:03,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474029197] [2024-11-10 18:42:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:42:03,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:42:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 18:42:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:42:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 18:42:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 18:42:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 18:42:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 18:42:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 18:42:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 18:42:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-10 18:42:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 18:42:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-10 18:42:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-10 18:42:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-10 18:42:03,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:42:03,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474029197] [2024-11-10 18:42:03,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474029197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:42:03,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:42:03,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 18:42:03,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060095727] [2024-11-10 18:42:03,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:42:03,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 18:42:03,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:42:03,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 18:42:03,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 18:42:03,947 INFO L87 Difference]: Start difference. First operand 708 states and 857 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-10 18:42:04,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:42:04,188 INFO L93 Difference]: Finished difference Result 1219 states and 1484 transitions. [2024-11-10 18:42:04,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 18:42:04,189 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 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 149 [2024-11-10 18:42:04,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:42:04,192 INFO L225 Difference]: With dead ends: 1219 [2024-11-10 18:42:04,193 INFO L226 Difference]: Without dead ends: 708 [2024-11-10 18:42:04,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-10 18:42:04,194 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 47 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 18:42:04,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 18:42:04,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-10 18:42:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 702. [2024-11-10 18:42:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 567 states have (on average 1.1516754850088184) internal successors, (653), 569 states have internal predecessors, (653), 86 states have call successors, (86), 36 states have call predecessors, (86), 41 states have return successors, (110), 96 states have call predecessors, (110), 86 states have call successors, (110) [2024-11-10 18:42:04,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 849 transitions. [2024-11-10 18:42:04,233 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 849 transitions. Word has length 149 [2024-11-10 18:42:04,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:42:04,234 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 849 transitions. [2024-11-10 18:42:04,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 states have internal predecessors, (60), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-10 18:42:04,234 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 849 transitions. [2024-11-10 18:42:04,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-10 18:42:04,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:42:04,235 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:42:04,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-10 18:42:04,235 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting binomialCoefficientErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:42:04,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:42:04,236 INFO L85 PathProgramCache]: Analyzing trace with hash -65201412, now seen corresponding path program 1 times [2024-11-10 18:42:04,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:42:04,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794434278] [2024-11-10 18:42:04,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:42:04,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:42:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:42:04,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245306254] [2024-11-10 18:42:04,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:42:04,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:42:04,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:42:04,254 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:42:04,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-10 18:42:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:42:04,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 18:42:04,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:42:04,379 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 34 proven. 4 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-10 18:42:04,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:42:04,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:42:04,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794434278] [2024-11-10 18:42:04,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 18:42:04,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245306254] [2024-11-10 18:42:04,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245306254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:42:04,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 18:42:04,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-10 18:42:04,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612704265] [2024-11-10 18:42:04,595 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 18:42:04,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:42:04,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:42:04,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:42:04,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:42:04,596 INFO L87 Difference]: Start difference. First operand 702 states and 849 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-10 18:42:04,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 18:42:04,659 INFO L93 Difference]: Finished difference Result 755 states and 925 transitions. [2024-11-10 18:42:04,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:42:04,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 159 [2024-11-10 18:42:04,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 18:42:04,676 INFO L225 Difference]: With dead ends: 755 [2024-11-10 18:42:04,676 INFO L226 Difference]: Without dead ends: 754 [2024-11-10 18:42:04,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-10 18:42:04,677 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 7 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 18:42:04,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 164 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 18:42:04,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-10 18:42:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 723. [2024-11-10 18:42:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 585 states have (on average 1.1418803418803418) internal successors, (668), 584 states have internal predecessors, (668), 89 states have call successors, (89), 36 states have call predecessors, (89), 41 states have return successors, (113), 102 states have call predecessors, (113), 89 states have call successors, (113) [2024-11-10 18:42:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 870 transitions. [2024-11-10 18:42:04,714 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 870 transitions. Word has length 159 [2024-11-10 18:42:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 18:42:04,715 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 870 transitions. [2024-11-10 18:42:04,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-10 18:42:04,715 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 870 transitions. [2024-11-10 18:42:04,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-10 18:42:04,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 18:42:04,716 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:42:04,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-10 18:42:04,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-10 18:42:04,917 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting binomialCoefficientErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-10 18:42:04,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:42:04,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2021243783, now seen corresponding path program 2 times [2024-11-10 18:42:04,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:42:04,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105866815] [2024-11-10 18:42:04,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:42:04,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:42:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 18:42:04,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122829502] [2024-11-10 18:42:04,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:42:04,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:42:04,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:42:04,939 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:42:04,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-10 18:42:05,023 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:42:05,023 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:42:05,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-10 18:42:05,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:42:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 150 proven. 27 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-10 18:42:05,319 INFO L311 TraceCheckSpWp]: Computing backward predicates...