./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Primes.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f 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/recursive/Primes.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16beca065b3aeb336c54dcf96f3abbe61553e7d28b28c1a40f525ad89a5da56e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:47:43,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:47:43,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:47:43,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:47:43,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:47:43,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:47:43,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:47:43,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:47:43,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:47:43,970 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:47:43,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:47:43,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:47:43,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:47:43,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:47:43,973 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:47:43,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:47:43,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:47:43,974 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:47:43,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:47:43,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:47:43,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:47:43,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:47:43,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:47:43,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:47:43,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:47:43,976 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:47:43,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:47:43,977 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:47:43,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:47:43,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:47:43,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:47:43,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:47:43,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:47:43,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:47:43,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:47:43,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:47:43,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:47:43,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:47:43,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:47:43,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:47:43,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:47:43,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:47:43,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:47:43,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:47:43,981 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16beca065b3aeb336c54dcf96f3abbe61553e7d28b28c1a40f525ad89a5da56e [2024-11-12 17:47:44,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:47:44,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:47:44,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:47:44,263 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:47:44,263 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:47:44,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Primes.c [2024-11-12 17:47:45,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:47:45,808 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:47:45,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Primes.c [2024-11-12 17:47:45,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3107133/0ced9fd3f87b4b9e93c235817787c215/FLAGef1c93ead [2024-11-12 17:47:45,827 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3107133/0ced9fd3f87b4b9e93c235817787c215 [2024-11-12 17:47:45,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:47:45,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:47:45,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:47:45,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:47:45,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:47:45,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:47:45" (1/1) ... [2024-11-12 17:47:45,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787b1e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:45, skipping insertion in model container [2024-11-12 17:47:45,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:47:45" (1/1) ... [2024-11-12 17:47:45,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:47:46,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:47:46,064 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:47:46,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:47:46,104 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:47:46,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46 WrapperNode [2024-11-12 17:47:46,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:47:46,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:47:46,106 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:47:46,106 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:47:46,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,139 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-12 17:47:46,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:47:46,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:47:46,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:47:46,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:47:46,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,176 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 17:47:46,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:47:46,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:47:46,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:47:46,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:47:46,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (1/1) ... [2024-11-12 17:47:46,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:47:46,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:46,235 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) [2024-11-12 17:47:46,238 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 [2024-11-12 17:47:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure multiple_of [2024-11-12 17:47:46,277 INFO L138 BoogieDeclarations]: Found implementation of procedure multiple_of [2024-11-12 17:47:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:47:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2024-11-12 17:47:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2024-11-12 17:47:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure is_prime_ [2024-11-12 17:47:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure is_prime_ [2024-11-12 17:47:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:47:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:47:46,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:47:46,334 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:47:46,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:47:46,607 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-12 17:47:46,607 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:47:46,625 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:47:46,626 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 17:47:46,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:47:46 BoogieIcfgContainer [2024-11-12 17:47:46,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:47:46,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:47:46,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:47:46,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:47:46,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:47:45" (1/3) ... [2024-11-12 17:47:46,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645df253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:47:46, skipping insertion in model container [2024-11-12 17:47:46,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:47:46" (2/3) ... [2024-11-12 17:47:46,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645df253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:47:46, skipping insertion in model container [2024-11-12 17:47:46,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:47:46" (3/3) ... [2024-11-12 17:47:46,633 INFO L112 eAbstractionObserver]: Analyzing ICFG Primes.c [2024-11-12 17:47:46,646 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:47:46,646 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-12 17:47:46,698 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:47:46,703 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;@1b0215f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:47:46,703 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-12 17:47:46,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 55 states have (on average 1.6) internal successors, (88), 71 states have internal predecessors, (88), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-12 17:47:46,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-12 17:47:46,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:46,710 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-12 17:47:46,710 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:46,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:46,715 INFO L85 PathProgramCache]: Analyzing trace with hash 2957412, now seen corresponding path program 1 times [2024-11-12 17:47:46,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:46,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007073556] [2024-11-12 17:47:46,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:46,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:46,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:46,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007073556] [2024-11-12 17:47:46,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007073556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:46,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:46,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:47:46,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850183321] [2024-11-12 17:47:46,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:46,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:47:46,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:46,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:47:46,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:46,990 INFO L87 Difference]: Start difference. First operand has 84 states, 55 states have (on average 1.6) internal successors, (88), 71 states have internal predecessors, (88), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:47,035 INFO L93 Difference]: Finished difference Result 87 states and 108 transitions. [2024-11-12 17:47:47,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:47:47,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-12 17:47:47,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:47,046 INFO L225 Difference]: With dead ends: 87 [2024-11-12 17:47:47,046 INFO L226 Difference]: Without dead ends: 76 [2024-11-12 17:47:47,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:47,053 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:47,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 196 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:47,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-12 17:47:47,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-12 17:47:47,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 64 states have internal predecessors, (76), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:47:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2024-11-12 17:47:47,101 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 4 [2024-11-12 17:47:47,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:47,101 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2024-11-12 17:47:47,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:47,102 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2024-11-12 17:47:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-12 17:47:47,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:47,103 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 17:47:47,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 17:47:47,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:47,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:47,104 INFO L85 PathProgramCache]: Analyzing trace with hash 91679879, now seen corresponding path program 1 times [2024-11-12 17:47:47,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:47,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473586949] [2024-11-12 17:47:47,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:47,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:47,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:47,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:47,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473586949] [2024-11-12 17:47:47,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473586949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:47,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:47,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:47:47,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155931334] [2024-11-12 17:47:47,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:47,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:47:47,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:47,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:47:47,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:47,179 INFO L87 Difference]: Start difference. First operand 76 states and 93 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-12 17:47:47,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:47,204 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2024-11-12 17:47:47,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:47:47,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-11-12 17:47:47,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:47,207 INFO L225 Difference]: With dead ends: 76 [2024-11-12 17:47:47,208 INFO L226 Difference]: Without dead ends: 75 [2024-11-12 17:47:47,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:47,210 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 2 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:47,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 176 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-12 17:47:47,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-12 17:47:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.530612244897959) internal successors, (75), 63 states have internal predecessors, (75), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:47:47,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2024-11-12 17:47:47,226 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 5 [2024-11-12 17:47:47,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:47,227 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2024-11-12 17:47:47,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-11-12 17:47:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2024-11-12 17:47:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-12 17:47:47,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:47,230 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:47,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 17:47:47,230 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:47,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:47,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1192796019, now seen corresponding path program 1 times [2024-11-12 17:47:47,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:47,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052834890] [2024-11-12 17:47:47,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:47,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:47,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:47,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052834890] [2024-11-12 17:47:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052834890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:47,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:47,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:47:47,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204530338] [2024-11-12 17:47:47,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:47,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:47:47,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:47,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:47:47,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:47,307 INFO L87 Difference]: Start difference. First operand 75 states and 92 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) [2024-11-12 17:47:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:47,338 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2024-11-12 17:47:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:47:47,339 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 [2024-11-12 17:47:47,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:47,342 INFO L225 Difference]: With dead ends: 77 [2024-11-12 17:47:47,342 INFO L226 Difference]: Without dead ends: 76 [2024-11-12 17:47:47,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:47,343 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 4 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:47,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 173 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:47,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-12 17:47:47,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2024-11-12 17:47:47,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.510204081632653) internal successors, (74), 62 states have internal predecessors, (74), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:47:47,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2024-11-12 17:47:47,363 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 15 [2024-11-12 17:47:47,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:47,363 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2024-11-12 17:47:47,364 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) [2024-11-12 17:47:47,364 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2024-11-12 17:47:47,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-12 17:47:47,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:47,364 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:47,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 17:47:47,365 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:47,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:47,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1678029112, now seen corresponding path program 1 times [2024-11-12 17:47:47,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:47,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331343261] [2024-11-12 17:47:47,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:47,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:47,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:47,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331343261] [2024-11-12 17:47:47,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331343261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:47,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:47,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:47:47,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159320530] [2024-11-12 17:47:47,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:47,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:47:47,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:47,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:47:47,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:47:47,462 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2024-11-12 17:47:47,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:47,557 INFO L93 Difference]: Finished difference Result 138 states and 177 transitions. [2024-11-12 17:47:47,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:47:47,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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 [2024-11-12 17:47:47,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:47,559 INFO L225 Difference]: With dead ends: 138 [2024-11-12 17:47:47,560 INFO L226 Difference]: Without dead ends: 70 [2024-11-12 17:47:47,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:47:47,563 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 40 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:47,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 249 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:47,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-12 17:47:47,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2024-11-12 17:47:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-12 17:47:47,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2024-11-12 17:47:47,576 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 16 [2024-11-12 17:47:47,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:47,577 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2024-11-12 17:47:47,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 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) [2024-11-12 17:47:47,578 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2024-11-12 17:47:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-12 17:47:47,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:47,579 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:47,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 17:47:47,580 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:47,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:47,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1678036095, now seen corresponding path program 1 times [2024-11-12 17:47:47,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:47,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960935053] [2024-11-12 17:47:47,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:47,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:47,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:47,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960935053] [2024-11-12 17:47:47,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960935053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:47,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:47,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:47:47,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416450338] [2024-11-12 17:47:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:47,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:47:47,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:47,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:47:47,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:47,645 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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) [2024-11-12 17:47:47,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:47,676 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2024-11-12 17:47:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:47:47,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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 [2024-11-12 17:47:47,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:47,678 INFO L225 Difference]: With dead ends: 70 [2024-11-12 17:47:47,678 INFO L226 Difference]: Without dead ends: 69 [2024-11-12 17:47:47,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:47,680 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 4 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:47,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 151 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-12 17:47:47,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2024-11-12 17:47:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 46 states have (on average 1.434782608695652) internal successors, (66), 56 states have internal predecessors, (66), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-12 17:47:47,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 81 transitions. [2024-11-12 17:47:47,693 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 81 transitions. Word has length 16 [2024-11-12 17:47:47,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:47,693 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 81 transitions. [2024-11-12 17:47:47,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 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) [2024-11-12 17:47:47,694 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 81 transitions. [2024-11-12 17:47:47,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-12 17:47:47,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:47,695 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:47,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 17:47:47,695 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:47,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:47,696 INFO L85 PathProgramCache]: Analyzing trace with hash 479511440, now seen corresponding path program 1 times [2024-11-12 17:47:47,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:47,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310567986] [2024-11-12 17:47:47,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:47,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:47,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:47,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310567986] [2024-11-12 17:47:47,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310567986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:47,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:47,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 17:47:47,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286157193] [2024-11-12 17:47:47,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:47,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:47:47,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:47,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:47:47,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:47:47,929 INFO L87 Difference]: Start difference. First operand 67 states and 81 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (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) [2024-11-12 17:47:48,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:48,102 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2024-11-12 17:47:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:47:48,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (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 17 [2024-11-12 17:47:48,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:48,104 INFO L225 Difference]: With dead ends: 91 [2024-11-12 17:47:48,104 INFO L226 Difference]: Without dead ends: 90 [2024-11-12 17:47:48,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-12 17:47:48,105 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 58 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:48,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 342 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:48,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-12 17:47:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2024-11-12 17:47:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 68 states have internal predecessors, (82), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-12 17:47:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 101 transitions. [2024-11-12 17:47:48,117 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 101 transitions. Word has length 17 [2024-11-12 17:47:48,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:48,117 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 101 transitions. [2024-11-12 17:47:48,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (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) [2024-11-12 17:47:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 101 transitions. [2024-11-12 17:47:48,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 17:47:48,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:48,118 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:48,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 17:47:48,119 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:48,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:48,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1980170339, now seen corresponding path program 1 times [2024-11-12 17:47:48,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:48,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171254363] [2024-11-12 17:47:48,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:48,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:48,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:48,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:48,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171254363] [2024-11-12 17:47:48,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171254363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:48,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:48,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 17:47:48,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934365310] [2024-11-12 17:47:48,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:48,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:47:48,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:48,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:47:48,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:47:48,247 INFO L87 Difference]: Start difference. First operand 82 states and 101 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-12 17:47:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:48,385 INFO L93 Difference]: Finished difference Result 88 states and 106 transitions. [2024-11-12 17:47:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:47:48,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 18 [2024-11-12 17:47:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:48,387 INFO L225 Difference]: With dead ends: 88 [2024-11-12 17:47:48,387 INFO L226 Difference]: Without dead ends: 87 [2024-11-12 17:47:48,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:47:48,388 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 47 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:48,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 262 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-12 17:47:48,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82. [2024-11-12 17:47:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.396551724137931) internal successors, (81), 68 states have internal predecessors, (81), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-12 17:47:48,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2024-11-12 17:47:48,403 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 18 [2024-11-12 17:47:48,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:48,404 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2024-11-12 17:47:48,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-12 17:47:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2024-11-12 17:47:48,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-12 17:47:48,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:48,408 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:48,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 17:47:48,408 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:48,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:48,409 INFO L85 PathProgramCache]: Analyzing trace with hash 848744867, now seen corresponding path program 1 times [2024-11-12 17:47:48,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:48,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617159505] [2024-11-12 17:47:48,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:48,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:48,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:48,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:48,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:48,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617159505] [2024-11-12 17:47:48,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617159505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:48,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:48,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:47:48,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035480212] [2024-11-12 17:47:48,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:48,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:47:48,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:48,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:47:48,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:48,457 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:48,479 INFO L93 Difference]: Finished difference Result 84 states and 103 transitions. [2024-11-12 17:47:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:47:48,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-12 17:47:48,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:48,482 INFO L225 Difference]: With dead ends: 84 [2024-11-12 17:47:48,482 INFO L226 Difference]: Without dead ends: 83 [2024-11-12 17:47:48,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:47:48,483 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 4 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 145 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 [2024-11-12 17:47:48,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 145 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:48,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-12 17:47:48,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2024-11-12 17:47:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 67 states have internal predecessors, (80), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-12 17:47:48,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 99 transitions. [2024-11-12 17:47:48,499 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 99 transitions. Word has length 19 [2024-11-12 17:47:48,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:48,500 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 99 transitions. [2024-11-12 17:47:48,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:48,500 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 99 transitions. [2024-11-12 17:47:48,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-12 17:47:48,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:48,502 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:48,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 17:47:48,503 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:48,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:48,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1255738427, now seen corresponding path program 1 times [2024-11-12 17:47:48,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:48,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857672336] [2024-11-12 17:47:48,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:48,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:48,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:48,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857672336] [2024-11-12 17:47:48,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857672336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:48,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:48,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 17:47:48,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394188144] [2024-11-12 17:47:48,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:48,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:47:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:47:48,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:47:48,573 INFO L87 Difference]: Start difference. First operand 81 states and 99 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-12 17:47:48,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:48,724 INFO L93 Difference]: Finished difference Result 116 states and 143 transitions. [2024-11-12 17:47:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:47:48,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 19 [2024-11-12 17:47:48,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:48,726 INFO L225 Difference]: With dead ends: 116 [2024-11-12 17:47:48,726 INFO L226 Difference]: Without dead ends: 115 [2024-11-12 17:47:48,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:47:48,727 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 45 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:48,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 287 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:48,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-12 17:47:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 110. [2024-11-12 17:47:48,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 90 states have internal predecessors, (111), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-12 17:47:48,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 138 transitions. [2024-11-12 17:47:48,739 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 138 transitions. Word has length 19 [2024-11-12 17:47:48,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:48,739 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 138 transitions. [2024-11-12 17:47:48,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-11-12 17:47:48,740 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 138 transitions. [2024-11-12 17:47:48,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-12 17:47:48,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:48,740 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:48,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 17:47:48,741 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:48,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:48,741 INFO L85 PathProgramCache]: Analyzing trace with hash 541287174, now seen corresponding path program 1 times [2024-11-12 17:47:48,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:48,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401962301] [2024-11-12 17:47:48,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:48,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:48,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:48,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:48,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:48,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401962301] [2024-11-12 17:47:48,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401962301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:48,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:48,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 17:47:48,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253553516] [2024-11-12 17:47:48,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:48,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:47:48,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:48,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:47:48,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:47:48,839 INFO L87 Difference]: Start difference. First operand 110 states and 138 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:48,872 INFO L93 Difference]: Finished difference Result 141 states and 174 transitions. [2024-11-12 17:47:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:47:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-12 17:47:48,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:48,874 INFO L225 Difference]: With dead ends: 141 [2024-11-12 17:47:48,874 INFO L226 Difference]: Without dead ends: 112 [2024-11-12 17:47:48,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:47:48,875 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:48,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-12 17:47:48,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2024-11-12 17:47:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.345679012345679) internal successors, (109), 90 states have internal predecessors, (109), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-12 17:47:48,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 136 transitions. [2024-11-12 17:47:48,895 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 136 transitions. Word has length 20 [2024-11-12 17:47:48,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:48,895 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 136 transitions. [2024-11-12 17:47:48,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:48,895 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 136 transitions. [2024-11-12 17:47:48,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-12 17:47:48,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:48,896 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:48,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 17:47:48,899 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:48,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash 614805462, now seen corresponding path program 1 times [2024-11-12 17:47:48,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:48,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060828386] [2024-11-12 17:47:48,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:48,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:48,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:48,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:48,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060828386] [2024-11-12 17:47:48,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060828386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:48,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:48,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:47:48,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358029604] [2024-11-12 17:47:48,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:48,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:47:48,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:48,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:47:48,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:47:48,940 INFO L87 Difference]: Start difference. First operand 110 states and 136 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:48,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:48,990 INFO L93 Difference]: Finished difference Result 148 states and 181 transitions. [2024-11-12 17:47:48,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:47:48,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-12 17:47:48,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:48,992 INFO L225 Difference]: With dead ends: 148 [2024-11-12 17:47:48,992 INFO L226 Difference]: Without dead ends: 123 [2024-11-12 17:47:48,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:47:48,993 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 25 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:48,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 282 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:48,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-12 17:47:49,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 120. [2024-11-12 17:47:49,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 98 states have internal predecessors, (120), 15 states have call successors, (15), 7 states have call predecessors, (15), 6 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 17:47:49,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2024-11-12 17:47:49,003 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 21 [2024-11-12 17:47:49,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:49,003 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2024-11-12 17:47:49,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2024-11-12 17:47:49,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-12 17:47:49,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:49,004 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:49,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 17:47:49,005 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:49,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:49,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1461933403, now seen corresponding path program 1 times [2024-11-12 17:47:49,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:49,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045905951] [2024-11-12 17:47:49,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:49,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 17:47:49,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:49,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045905951] [2024-11-12 17:47:49,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045905951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:49,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:49,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 17:47:49,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990114271] [2024-11-12 17:47:49,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:49,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:47:49,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:49,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:47:49,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:47:49,070 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:49,175 INFO L93 Difference]: Finished difference Result 216 states and 269 transitions. [2024-11-12 17:47:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:47:49,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-12 17:47:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:49,177 INFO L225 Difference]: With dead ends: 216 [2024-11-12 17:47:49,177 INFO L226 Difference]: Without dead ends: 117 [2024-11-12 17:47:49,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-12 17:47:49,178 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 44 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:49,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 348 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:49,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-12 17:47:49,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2024-11-12 17:47:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 92 states have internal predecessors, (110), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-12 17:47:49,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2024-11-12 17:47:49,190 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 23 [2024-11-12 17:47:49,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:49,190 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2024-11-12 17:47:49,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2024-11-12 17:47:49,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-12 17:47:49,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:49,191 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:49,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 17:47:49,191 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting multErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:49,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1870691775, now seen corresponding path program 1 times [2024-11-12 17:47:49,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:49,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106128014] [2024-11-12 17:47:49,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:49,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:49,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:49,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:49,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106128014] [2024-11-12 17:47:49,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106128014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:49,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:49,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:47:49,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306364579] [2024-11-12 17:47:49,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:49,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:47:49,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:49,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:47:49,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:47:49,254 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:49,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:49,322 INFO L93 Difference]: Finished difference Result 137 states and 167 transitions. [2024-11-12 17:47:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:47:49,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-12 17:47:49,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:49,325 INFO L225 Difference]: With dead ends: 137 [2024-11-12 17:47:49,325 INFO L226 Difference]: Without dead ends: 136 [2024-11-12 17:47:49,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:47:49,325 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 35 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:49,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 269 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-12 17:47:49,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 128. [2024-11-12 17:47:49,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 97 states have (on average 1.3298969072164948) internal successors, (129), 105 states have internal predecessors, (129), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-12 17:47:49,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 158 transitions. [2024-11-12 17:47:49,356 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 158 transitions. Word has length 23 [2024-11-12 17:47:49,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:49,357 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 158 transitions. [2024-11-12 17:47:49,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:49,357 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 158 transitions. [2024-11-12 17:47:49,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-12 17:47:49,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:49,360 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:49,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 17:47:49,361 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:49,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:49,362 INFO L85 PathProgramCache]: Analyzing trace with hash 771635278, now seen corresponding path program 1 times [2024-11-12 17:47:49,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:49,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410530830] [2024-11-12 17:47:49,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:49,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:49,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:49,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410530830] [2024-11-12 17:47:49,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410530830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:49,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124848282] [2024-11-12 17:47:49,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:49,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:49,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:49,481 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) [2024-11-12 17:47:49,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:47:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:49,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 17:47:49,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:49,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:47:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:49,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124848282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:47:49,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:47:49,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 23 [2024-11-12 17:47:49,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806311229] [2024-11-12 17:47:49,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:47:49,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-12 17:47:49,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:49,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-12 17:47:49,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2024-11-12 17:47:49,991 INFO L87 Difference]: Start difference. First operand 128 states and 158 transitions. Second operand has 24 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 15 states have internal predecessors, (62), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:50,467 INFO L93 Difference]: Finished difference Result 281 states and 357 transitions. [2024-11-12 17:47:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-12 17:47:50,468 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 15 states have internal predecessors, (62), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-12 17:47:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:50,469 INFO L225 Difference]: With dead ends: 281 [2024-11-12 17:47:50,469 INFO L226 Difference]: Without dead ends: 173 [2024-11-12 17:47:50,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=959, Unknown=0, NotChecked=0, Total=1122 [2024-11-12 17:47:50,471 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 206 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:50,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 678 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:47:50,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-12 17:47:50,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 153. [2024-11-12 17:47:50,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 118 states have (on average 1.2966101694915255) internal successors, (153), 125 states have internal predecessors, (153), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-12 17:47:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 188 transitions. [2024-11-12 17:47:50,484 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 188 transitions. Word has length 25 [2024-11-12 17:47:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:50,484 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 188 transitions. [2024-11-12 17:47:50,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 15 states have internal predecessors, (62), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2024-11-12 17:47:50,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-12 17:47:50,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:50,485 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:50,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 17:47:50,689 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,SelfDestructingSolverStorable13 [2024-11-12 17:47:50,690 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:50,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:50,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1481094791, now seen corresponding path program 1 times [2024-11-12 17:47:50,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:50,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476496196] [2024-11-12 17:47:50,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:50,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-12 17:47:50,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:50,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476496196] [2024-11-12 17:47:50,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476496196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:50,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826789208] [2024-11-12 17:47:50,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:50,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:50,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:50,811 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) [2024-11-12 17:47:50,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 17:47:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:50,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-12 17:47:50,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:51,008 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:51,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:47:51,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826789208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:51,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:47:51,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2024-11-12 17:47:51,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381049760] [2024-11-12 17:47:51,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:51,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 17:47:51,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:51,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 17:47:51,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:47:51,010 INFO L87 Difference]: Start difference. First operand 153 states and 188 transitions. Second operand has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:51,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:51,232 INFO L93 Difference]: Finished difference Result 258 states and 317 transitions. [2024-11-12 17:47:51,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 17:47:51,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-12 17:47:51,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:51,234 INFO L225 Difference]: With dead ends: 258 [2024-11-12 17:47:51,234 INFO L226 Difference]: Without dead ends: 202 [2024-11-12 17:47:51,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-12 17:47:51,235 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 53 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:51,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 448 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:47:51,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-12 17:47:51,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 194. [2024-11-12 17:47:51,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 151 states have (on average 1.271523178807947) internal successors, (192), 158 states have internal predecessors, (192), 23 states have call successors, (23), 13 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 17:47:51,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 237 transitions. [2024-11-12 17:47:51,249 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 237 transitions. Word has length 27 [2024-11-12 17:47:51,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:51,249 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 237 transitions. [2024-11-12 17:47:51,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:51,249 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 237 transitions. [2024-11-12 17:47:51,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-12 17:47:51,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:51,250 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:51,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 17:47:51,450 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,SelfDestructingSolverStorable14 [2024-11-12 17:47:51,451 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:51,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash 903106936, now seen corresponding path program 1 times [2024-11-12 17:47:51,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:51,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359866484] [2024-11-12 17:47:51,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:51,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:51,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:51,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:51,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:51,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359866484] [2024-11-12 17:47:51,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359866484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:51,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:47:51,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:47:51,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173366078] [2024-11-12 17:47:51,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:51,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:47:51,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:51,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:47:51,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:47:51,493 INFO L87 Difference]: Start difference. First operand 194 states and 237 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:51,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:51,563 INFO L93 Difference]: Finished difference Result 224 states and 278 transitions. [2024-11-12 17:47:51,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:47:51,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 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 28 [2024-11-12 17:47:51,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:51,565 INFO L225 Difference]: With dead ends: 224 [2024-11-12 17:47:51,566 INFO L226 Difference]: Without dead ends: 222 [2024-11-12 17:47:51,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:47:51,567 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 28 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:51,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 262 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:51,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-12 17:47:51,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 209. [2024-11-12 17:47:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 164 states have (on average 1.2682926829268293) internal successors, (208), 170 states have internal predecessors, (208), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-12 17:47:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 257 transitions. [2024-11-12 17:47:51,583 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 257 transitions. Word has length 28 [2024-11-12 17:47:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:51,584 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 257 transitions. [2024-11-12 17:47:51,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:51,584 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 257 transitions. [2024-11-12 17:47:51,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-12 17:47:51,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:51,584 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:51,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 17:47:51,585 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:51,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash 992212682, now seen corresponding path program 1 times [2024-11-12 17:47:51,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:51,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40129884] [2024-11-12 17:47:51,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:51,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:51,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:51,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 17:47:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 17:47:51,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40129884] [2024-11-12 17:47:51,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40129884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022081695] [2024-11-12 17:47:51,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:51,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:51,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:51,675 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) [2024-11-12 17:47:51,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 17:47:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:51,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 17:47:51,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:51,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:51,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:47:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:51,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022081695] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:47:51,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:47:51,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2024-11-12 17:47:51,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068995219] [2024-11-12 17:47:51,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:47:51,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 17:47:51,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:51,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 17:47:51,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:47:51,865 INFO L87 Difference]: Start difference. First operand 209 states and 257 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:47:52,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:52,092 INFO L93 Difference]: Finished difference Result 258 states and 332 transitions. [2024-11-12 17:47:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 17:47:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 31 [2024-11-12 17:47:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:52,094 INFO L225 Difference]: With dead ends: 258 [2024-11-12 17:47:52,094 INFO L226 Difference]: Without dead ends: 207 [2024-11-12 17:47:52,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-12 17:47:52,095 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 85 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:52,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 557 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-12 17:47:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 196. [2024-11-12 17:47:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 155 states have (on average 1.2258064516129032) internal successors, (190), 161 states have internal predecessors, (190), 23 states have call successors, (23), 14 states have call predecessors, (23), 12 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-12 17:47:52,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 234 transitions. [2024-11-12 17:47:52,108 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 234 transitions. Word has length 31 [2024-11-12 17:47:52,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:52,109 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 234 transitions. [2024-11-12 17:47:52,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 13 states have internal predecessors, (51), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:47:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 234 transitions. [2024-11-12 17:47:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-12 17:47:52,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:52,110 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:52,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 17:47:52,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:52,314 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:52,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:52,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1575435679, now seen corresponding path program 1 times [2024-11-12 17:47:52,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:52,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289978396] [2024-11-12 17:47:52,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:52,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:52,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:52,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:52,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289978396] [2024-11-12 17:47:52,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289978396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:52,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879479646] [2024-11-12 17:47:52,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:52,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:52,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:52,380 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) [2024-11-12 17:47:52,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 17:47:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:52,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 17:47:52,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 17:47:52,458 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:47:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 17:47:52,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879479646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:47:52,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:47:52,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2024-11-12 17:47:52,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236889851] [2024-11-12 17:47:52,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:47:52,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 17:47:52,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:52,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 17:47:52,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:47:52,510 INFO L87 Difference]: Start difference. First operand 196 states and 234 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:52,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:52,574 INFO L93 Difference]: Finished difference Result 203 states and 240 transitions. [2024-11-12 17:47:52,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:47:52,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-12 17:47:52,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:52,576 INFO L225 Difference]: With dead ends: 203 [2024-11-12 17:47:52,576 INFO L226 Difference]: Without dead ends: 173 [2024-11-12 17:47:52,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:47:52,577 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 41 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:52,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 399 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:52,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-12 17:47:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 170. [2024-11-12 17:47:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 135 states have (on average 1.2) internal successors, (162), 138 states have internal predecessors, (162), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-12 17:47:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2024-11-12 17:47:52,590 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 33 [2024-11-12 17:47:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:52,590 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2024-11-12 17:47:52,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 7 states have internal predecessors, (42), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:47:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2024-11-12 17:47:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-12 17:47:52,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:52,591 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:52,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 17:47:52,791 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,SelfDestructingSolverStorable17 [2024-11-12 17:47:52,792 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:52,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:52,792 INFO L85 PathProgramCache]: Analyzing trace with hash 500890758, now seen corresponding path program 1 times [2024-11-12 17:47:52,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:52,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459707385] [2024-11-12 17:47:52,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:52,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:52,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:52,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 17:47:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:52,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:52,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459707385] [2024-11-12 17:47:52,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459707385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:52,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509084068] [2024-11-12 17:47:52,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:52,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:52,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:52,873 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) [2024-11-12 17:47:52,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 17:47:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:52,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 17:47:52,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:52,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:47:53,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:53,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509084068] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:47:53,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:47:53,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-12 17:47:53,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757283329] [2024-11-12 17:47:53,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:47:53,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-12 17:47:53,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:53,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-12 17:47:53,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:47:53,062 INFO L87 Difference]: Start difference. First operand 170 states and 201 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-12 17:47:53,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:53,127 INFO L93 Difference]: Finished difference Result 179 states and 211 transitions. [2024-11-12 17:47:53,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:47:53,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2024-11-12 17:47:53,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:53,129 INFO L225 Difference]: With dead ends: 179 [2024-11-12 17:47:53,129 INFO L226 Difference]: Without dead ends: 175 [2024-11-12 17:47:53,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-12 17:47:53,130 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 20 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:53,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 511 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:47:53,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-12 17:47:53,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-12 17:47:53,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 139 states have (on average 1.1942446043165467) internal successors, (166), 142 states have internal predecessors, (166), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-12 17:47:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 206 transitions. [2024-11-12 17:47:53,144 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 206 transitions. Word has length 33 [2024-11-12 17:47:53,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:53,144 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 206 transitions. [2024-11-12 17:47:53,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-12 17:47:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 206 transitions. [2024-11-12 17:47:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 17:47:53,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:53,145 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:53,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 17:47:53,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:53,346 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:53,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1673059225, now seen corresponding path program 1 times [2024-11-12 17:47:53,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:53,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565700288] [2024-11-12 17:47:53,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:53,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:53,476 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:53,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:53,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565700288] [2024-11-12 17:47:53,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565700288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:53,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658901078] [2024-11-12 17:47:53,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:53,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:53,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:53,479 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) [2024-11-12 17:47:53,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 17:47:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:53,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 17:47:53,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:53,678 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:47:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:53,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658901078] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:47:53,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:47:53,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 18 [2024-11-12 17:47:53,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931827612] [2024-11-12 17:47:53,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:47:53,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 17:47:53,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 17:47:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-12 17:47:53,827 INFO L87 Difference]: Start difference. First operand 175 states and 206 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:54,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:54,095 INFO L93 Difference]: Finished difference Result 300 states and 354 transitions. [2024-11-12 17:47:54,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:47:54,096 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-12 17:47:54,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:54,097 INFO L225 Difference]: With dead ends: 300 [2024-11-12 17:47:54,107 INFO L226 Difference]: Without dead ends: 160 [2024-11-12 17:47:54,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 54 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2024-11-12 17:47:54,109 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 126 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:54,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 469 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:47:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-12 17:47:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2024-11-12 17:47:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 122 states have (on average 1.1639344262295082) internal successors, (142), 125 states have internal predecessors, (142), 17 states have call successors, (17), 11 states have call predecessors, (17), 11 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-12 17:47:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 176 transitions. [2024-11-12 17:47:54,126 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 176 transitions. Word has length 34 [2024-11-12 17:47:54,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:54,126 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 176 transitions. [2024-11-12 17:47:54,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 11 states have internal predecessors, (50), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:54,126 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 176 transitions. [2024-11-12 17:47:54,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-12 17:47:54,127 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:54,127 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:54,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-12 17:47:54,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:54,328 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:54,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:54,329 INFO L85 PathProgramCache]: Analyzing trace with hash -538547935, now seen corresponding path program 1 times [2024-11-12 17:47:54,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:54,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687383899] [2024-11-12 17:47:54,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:54,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 17:47:54,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:54,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687383899] [2024-11-12 17:47:54,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687383899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:54,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98305193] [2024-11-12 17:47:54,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:54,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:54,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:54,373 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) [2024-11-12 17:47:54,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 17:47:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:54,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:47:54,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 17:47:54,448 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:47:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 17:47:54,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98305193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:47:54,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:47:54,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-12 17:47:54,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263121411] [2024-11-12 17:47:54,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:47:54,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 17:47:54,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:54,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 17:47:54,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:47:54,484 INFO L87 Difference]: Start difference. First operand 154 states and 176 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:54,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:54,575 INFO L93 Difference]: Finished difference Result 295 states and 353 transitions. [2024-11-12 17:47:54,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:47:54,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2024-11-12 17:47:54,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:54,577 INFO L225 Difference]: With dead ends: 295 [2024-11-12 17:47:54,578 INFO L226 Difference]: Without dead ends: 175 [2024-11-12 17:47:54,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:47:54,579 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 39 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:54,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 339 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:54,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-12 17:47:54,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2024-11-12 17:47:54,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 131 states have (on average 1.16793893129771) internal successors, (153), 134 states have internal predecessors, (153), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-12 17:47:54,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 189 transitions. [2024-11-12 17:47:54,591 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 189 transitions. Word has length 39 [2024-11-12 17:47:54,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:54,591 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 189 transitions. [2024-11-12 17:47:54,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:54,592 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 189 transitions. [2024-11-12 17:47:54,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-12 17:47:54,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:54,592 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:54,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-12 17:47:54,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:54,793 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:54,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:54,794 INFO L85 PathProgramCache]: Analyzing trace with hash 485100786, now seen corresponding path program 1 times [2024-11-12 17:47:54,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:54,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531694608] [2024-11-12 17:47:54,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:54,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:54,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531694608] [2024-11-12 17:47:54,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531694608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:54,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363550436] [2024-11-12 17:47:54,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:54,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:54,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:54,937 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) [2024-11-12 17:47:54,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 17:47:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:54,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-12 17:47:54,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 17:47:55,176 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:47:55,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363550436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:55,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:47:55,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 19 [2024-11-12 17:47:55,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704242848] [2024-11-12 17:47:55,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:55,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 17:47:55,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:55,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 17:47:55,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2024-11-12 17:47:55,178 INFO L87 Difference]: Start difference. First operand 165 states and 189 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:55,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:55,360 INFO L93 Difference]: Finished difference Result 173 states and 198 transitions. [2024-11-12 17:47:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 17:47:55,361 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-12 17:47:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:55,362 INFO L225 Difference]: With dead ends: 173 [2024-11-12 17:47:55,362 INFO L226 Difference]: Without dead ends: 172 [2024-11-12 17:47:55,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2024-11-12 17:47:55,363 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 67 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:55,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 317 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-12 17:47:55,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 165. [2024-11-12 17:47:55,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 131 states have (on average 1.1603053435114503) internal successors, (152), 134 states have internal predecessors, (152), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-12 17:47:55,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 188 transitions. [2024-11-12 17:47:55,373 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 188 transitions. Word has length 40 [2024-11-12 17:47:55,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:55,373 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 188 transitions. [2024-11-12 17:47:55,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 188 transitions. [2024-11-12 17:47:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-12 17:47:55,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:55,374 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:55,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-12 17:47:55,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-12 17:47:55,579 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:55,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:55,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2141744756, now seen corresponding path program 1 times [2024-11-12 17:47:55,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:55,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140922275] [2024-11-12 17:47:55,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:55,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 17:47:55,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:55,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140922275] [2024-11-12 17:47:55,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140922275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:55,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891934710] [2024-11-12 17:47:55,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:55,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:55,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:55,661 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) [2024-11-12 17:47:55,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 17:47:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:55,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 17:47:55,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 17:47:55,818 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:47:55,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891934710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:47:55,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:47:55,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2024-11-12 17:47:55,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975595729] [2024-11-12 17:47:55,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:47:55,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 17:47:55,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:55,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 17:47:55,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:47:55,820 INFO L87 Difference]: Start difference. First operand 165 states and 188 transitions. Second operand has 8 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:55,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:55,988 INFO L93 Difference]: Finished difference Result 197 states and 227 transitions. [2024-11-12 17:47:55,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:47:55,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-12 17:47:55,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:55,990 INFO L225 Difference]: With dead ends: 197 [2024-11-12 17:47:55,990 INFO L226 Difference]: Without dead ends: 196 [2024-11-12 17:47:55,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-11-12 17:47:55,991 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 70 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:55,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 298 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:55,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-12 17:47:56,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 180. [2024-11-12 17:47:56,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 143 states have (on average 1.167832167832168) internal successors, (167), 146 states have internal predecessors, (167), 20 states have call successors, (20), 13 states have call predecessors, (20), 13 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-12 17:47:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 207 transitions. [2024-11-12 17:47:56,003 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 207 transitions. Word has length 41 [2024-11-12 17:47:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:56,003 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 207 transitions. [2024-11-12 17:47:56,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:47:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 207 transitions. [2024-11-12 17:47:56,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-12 17:47:56,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:56,004 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:56,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-12 17:47:56,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:56,205 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:56,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:56,205 INFO L85 PathProgramCache]: Analyzing trace with hash 788683582, now seen corresponding path program 1 times [2024-11-12 17:47:56,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:56,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956891906] [2024-11-12 17:47:56,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:56,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:56,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:47:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:56,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 17:47:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:56,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:47:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 17:47:56,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:56,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956891906] [2024-11-12 17:47:56,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956891906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:56,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456953273] [2024-11-12 17:47:56,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:56,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:56,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:56,362 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) [2024-11-12 17:47:56,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 17:47:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:56,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-12 17:47:56,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 17:47:56,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:47:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 17:47:56,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456953273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:47:56,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:47:56,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2024-11-12 17:47:56,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568207770] [2024-11-12 17:47:56,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:47:56,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-12 17:47:56,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:56,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-12 17:47:56,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2024-11-12 17:47:56,693 INFO L87 Difference]: Start difference. First operand 180 states and 207 transitions. Second operand has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 18 states have internal predecessors, (72), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-12 17:47:56,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:47:56,860 INFO L93 Difference]: Finished difference Result 197 states and 227 transitions. [2024-11-12 17:47:56,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 17:47:56,861 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 18 states have internal predecessors, (72), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 45 [2024-11-12 17:47:56,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:47:56,862 INFO L225 Difference]: With dead ends: 197 [2024-11-12 17:47:56,862 INFO L226 Difference]: Without dead ends: 190 [2024-11-12 17:47:56,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=563, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:47:56,863 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 40 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:47:56,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 864 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:47:56,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-12 17:47:56,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-12 17:47:56,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 151 states have (on average 1.1589403973509933) internal successors, (175), 154 states have internal predecessors, (175), 20 states have call successors, (20), 13 states have call predecessors, (20), 15 states have return successors, (22), 22 states have call predecessors, (22), 19 states have call successors, (22) [2024-11-12 17:47:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2024-11-12 17:47:56,876 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 45 [2024-11-12 17:47:56,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:47:56,876 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2024-11-12 17:47:56,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 18 states have internal predecessors, (72), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-12 17:47:56,876 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2024-11-12 17:47:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-12 17:47:56,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:47:56,877 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:47:56,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-12 17:47:57,078 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,SelfDestructingSolverStorable23 [2024-11-12 17:47:57,080 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting multiple_ofErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:47:57,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:47:57,081 INFO L85 PathProgramCache]: Analyzing trace with hash 647871711, now seen corresponding path program 2 times [2024-11-12 17:47:57,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:47:57,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723743976] [2024-11-12 17:47:57,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:47:57,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:47:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:47:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:47:57,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:47:57,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723743976] [2024-11-12 17:47:57,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723743976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:47:57,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194821131] [2024-11-12 17:47:57,252 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:47:57,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:47:57,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:47:57,254 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) [2024-11-12 17:47:57,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-12 17:47:57,300 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:47:57,300 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:47:57,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-12 17:47:57,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:47:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 19 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 17:47:57,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:47:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 17:47:57,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194821131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:47:57,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:47:57,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2024-11-12 17:47:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239719142] [2024-11-12 17:47:57,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:47:57,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-12 17:47:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:47:57,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-12 17:47:57,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1027, Unknown=0, NotChecked=0, Total=1122 [2024-11-12 17:47:57,808 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand has 34 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 20 states have internal predecessors, (101), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:48:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:00,121 INFO L93 Difference]: Finished difference Result 335 states and 397 transitions. [2024-11-12 17:48:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-12 17:48:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 20 states have internal predecessors, (101), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-12 17:48:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:00,124 INFO L225 Difference]: With dead ends: 335 [2024-11-12 17:48:00,124 INFO L226 Difference]: Without dead ends: 333 [2024-11-12 17:48:00,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1424, Invalid=6586, Unknown=0, NotChecked=0, Total=8010 [2024-11-12 17:48:00,127 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 581 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:00,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 1099 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-12 17:48:00,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-12 17:48:00,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 296. [2024-11-12 17:48:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 238 states have (on average 1.1218487394957983) internal successors, (267), 239 states have internal predecessors, (267), 33 states have call successors, (33), 21 states have call predecessors, (33), 23 states have return successors, (35), 35 states have call predecessors, (35), 32 states have call successors, (35) [2024-11-12 17:48:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 335 transitions. [2024-11-12 17:48:00,151 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 335 transitions. Word has length 47 [2024-11-12 17:48:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:00,152 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 335 transitions. [2024-11-12 17:48:00,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 20 states have internal predecessors, (101), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:48:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 335 transitions. [2024-11-12 17:48:00,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-12 17:48:00,153 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:00,153 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:00,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-12 17:48:00,358 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,SelfDestructingSolverStorable24 [2024-11-12 17:48:00,359 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:48:00,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash 32698622, now seen corresponding path program 2 times [2024-11-12 17:48:00,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:00,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545679706] [2024-11-12 17:48:00,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:00,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:00,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:00,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-12 17:48:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:00,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:00,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:00,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-12 17:48:00,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:00,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545679706] [2024-11-12 17:48:00,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545679706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:00,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432078943] [2024-11-12 17:48:00,735 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:48:00,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:00,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:00,737 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) [2024-11-12 17:48:00,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-12 17:48:00,798 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:48:00,798 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:00,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-12 17:48:00,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-12 17:48:00,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 6 proven. 126 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-12 17:48:01,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432078943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:01,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:01,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 31 [2024-11-12 17:48:01,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462379338] [2024-11-12 17:48:01,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:01,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-12 17:48:01,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:01,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-12 17:48:01,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2024-11-12 17:48:01,778 INFO L87 Difference]: Start difference. First operand 296 states and 335 transitions. Second operand has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 10 states have call successors, (12), 3 states have call predecessors, (12), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-12 17:48:02,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:02,127 INFO L93 Difference]: Finished difference Result 329 states and 375 transitions. [2024-11-12 17:48:02,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 17:48:02,127 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 10 states have call successors, (12), 3 states have call predecessors, (12), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) Word has length 83 [2024-11-12 17:48:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:02,129 INFO L225 Difference]: With dead ends: 329 [2024-11-12 17:48:02,129 INFO L226 Difference]: Without dead ends: 316 [2024-11-12 17:48:02,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=366, Invalid=1796, Unknown=0, NotChecked=0, Total=2162 [2024-11-12 17:48:02,130 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 120 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:02,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 887 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:48:02,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-12 17:48:02,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2024-11-12 17:48:02,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 254 states have (on average 1.1141732283464567) internal successors, (283), 255 states have internal predecessors, (283), 33 states have call successors, (33), 21 states have call predecessors, (33), 27 states have return successors, (39), 39 states have call predecessors, (39), 32 states have call successors, (39) [2024-11-12 17:48:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 355 transitions. [2024-11-12 17:48:02,152 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 355 transitions. Word has length 83 [2024-11-12 17:48:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:02,152 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 355 transitions. [2024-11-12 17:48:02,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 10 states have call successors, (12), 3 states have call predecessors, (12), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-12 17:48:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 355 transitions. [2024-11-12 17:48:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-12 17:48:02,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:02,154 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:02,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-12 17:48:02,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-12 17:48:02,355 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:48:02,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:02,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1270351096, now seen corresponding path program 1 times [2024-11-12 17:48:02,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:02,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661751109] [2024-11-12 17:48:02,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:02,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:02,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 17:48:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:02,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 17:48:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:02,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 17:48:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:02,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:02,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-12 17:48:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 75 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-12 17:48:02,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:02,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661751109] [2024-11-12 17:48:02,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661751109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:02,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772876893] [2024-11-12 17:48:02,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:02,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:02,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:02,627 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) [2024-11-12 17:48:02,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-12 17:48:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:02,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-12 17:48:02,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 37 proven. 62 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-12 17:48:02,924 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 35 proven. 64 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-12 17:48:04,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772876893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:04,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:04,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 24 [2024-11-12 17:48:04,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374594028] [2024-11-12 17:48:04,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:04,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-12 17:48:04,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:04,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-12 17:48:04,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-11-12 17:48:04,026 INFO L87 Difference]: Start difference. First operand 316 states and 355 transitions. Second operand has 24 states, 24 states have (on average 5.375) internal successors, (129), 23 states have internal predecessors, (129), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-12 17:48:04,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:04,261 INFO L93 Difference]: Finished difference Result 526 states and 602 transitions. [2024-11-12 17:48:04,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-12 17:48:04,262 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.375) internal successors, (129), 23 states have internal predecessors, (129), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) Word has length 79 [2024-11-12 17:48:04,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:04,263 INFO L225 Difference]: With dead ends: 526 [2024-11-12 17:48:04,263 INFO L226 Difference]: Without dead ends: 76 [2024-11-12 17:48:04,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 148 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=265, Invalid=925, Unknown=0, NotChecked=0, Total=1190 [2024-11-12 17:48:04,265 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 94 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:04,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 423 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:48:04,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-12 17:48:04,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-12 17:48:04,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.0483870967741935) internal successors, (65), 62 states have internal predecessors, (65), 4 states have call successors, (4), 3 states have call predecessors, (4), 9 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-12 17:48:04,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2024-11-12 17:48:04,271 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 79 [2024-11-12 17:48:04,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:04,271 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2024-11-12 17:48:04,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.375) internal successors, (129), 23 states have internal predecessors, (129), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) [2024-11-12 17:48:04,271 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2024-11-12 17:48:04,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-12 17:48:04,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:04,272 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:04,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-12 17:48:04,476 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,SelfDestructingSolverStorable26 [2024-11-12 17:48:04,477 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:48:04,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:04,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1042418494, now seen corresponding path program 3 times [2024-11-12 17:48:04,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:04,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475898565] [2024-11-12 17:48:04,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:04,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:04,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:04,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-12 17:48:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:04,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:05,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:05,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:05,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:05,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:05,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:05,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:05,581 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-12 17:48:05,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:05,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475898565] [2024-11-12 17:48:05,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475898565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:05,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270952127] [2024-11-12 17:48:05,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:48:05,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:05,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:05,584 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) [2024-11-12 17:48:05,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-12 17:48:05,675 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-12 17:48:05,676 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:05,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-12 17:48:05,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-12 17:48:06,024 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 30 proven. 250 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-12 17:48:09,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270952127] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:09,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:09,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 23] total 51 [2024-11-12 17:48:09,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518697970] [2024-11-12 17:48:09,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:09,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-12 17:48:09,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:09,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-12 17:48:09,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2308, Unknown=0, NotChecked=0, Total=2652 [2024-11-12 17:48:09,952 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 52 states, 51 states have (on average 2.9411764705882355) internal successors, (150), 50 states have internal predecessors, (150), 10 states have call successors, (10), 3 states have call predecessors, (10), 16 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) [2024-11-12 17:48:10,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:10,799 INFO L93 Difference]: Finished difference Result 141 states and 159 transitions. [2024-11-12 17:48:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-12 17:48:10,799 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.9411764705882355) internal successors, (150), 50 states have internal predecessors, (150), 10 states have call successors, (10), 3 states have call predecessors, (10), 16 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) Word has length 117 [2024-11-12 17:48:10,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:10,800 INFO L225 Difference]: With dead ends: 141 [2024-11-12 17:48:10,800 INFO L226 Difference]: Without dead ends: 116 [2024-11-12 17:48:10,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1859 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=964, Invalid=5842, Unknown=0, NotChecked=0, Total=6806 [2024-11-12 17:48:10,803 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 156 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:10,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 528 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:48:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-12 17:48:10,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-12 17:48:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.0319148936170213) internal successors, (97), 94 states have internal predecessors, (97), 4 states have call successors, (4), 3 states have call predecessors, (4), 17 states have return successors, (18), 18 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-12 17:48:10,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 119 transitions. [2024-11-12 17:48:10,812 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 119 transitions. Word has length 117 [2024-11-12 17:48:10,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:10,813 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 119 transitions. [2024-11-12 17:48:10,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.9411764705882355) internal successors, (150), 50 states have internal predecessors, (150), 10 states have call successors, (10), 3 states have call predecessors, (10), 16 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) [2024-11-12 17:48:10,813 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 119 transitions. [2024-11-12 17:48:10,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-12 17:48:10,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:10,815 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 16, 16, 16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:10,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-12 17:48:11,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:11,019 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:48:11,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:11,021 INFO L85 PathProgramCache]: Analyzing trace with hash 122163454, now seen corresponding path program 4 times [2024-11-12 17:48:11,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:11,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396703853] [2024-11-12 17:48:11,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:11,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:11,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:48:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:11,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-12 17:48:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:12,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:13,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:13,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:14,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:14,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:15,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:15,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:15,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:15,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:15,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:15,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:16,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:16,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:16,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:16,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:48:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:48:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1743 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2024-11-12 17:48:16,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:48:16,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396703853] [2024-11-12 17:48:16,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396703853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:48:16,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427333654] [2024-11-12 17:48:16,444 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 17:48:16,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:48:16,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:48:16,446 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) [2024-11-12 17:48:16,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-12 17:48:16,610 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 17:48:16,610 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:48:16,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-12 17:48:16,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:48:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1743 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2024-11-12 17:48:17,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:48:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1743 backedges. 78 proven. 1056 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2024-11-12 17:48:56,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427333654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:48:56,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:48:56,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 39] total 91 [2024-11-12 17:48:56,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666084910] [2024-11-12 17:48:56,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:48:56,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-11-12 17:48:56,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:48:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-11-12 17:48:56,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=972, Invalid=7400, Unknown=0, NotChecked=0, Total=8372 [2024-11-12 17:48:56,055 INFO L87 Difference]: Start difference. First operand 116 states and 119 transitions. Second operand has 92 states, 91 states have (on average 2.6153846153846154) internal successors, (238), 90 states have internal predecessors, (238), 10 states have call successors, (12), 3 states have call predecessors, (12), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) [2024-11-12 17:48:59,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:48:59,039 INFO L93 Difference]: Finished difference Result 245 states and 279 transitions. [2024-11-12 17:48:59,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-12 17:48:59,040 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 2.6153846153846154) internal successors, (238), 90 states have internal predecessors, (238), 10 states have call successors, (12), 3 states have call predecessors, (12), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) Word has length 227 [2024-11-12 17:48:59,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:48:59,041 INFO L225 Difference]: With dead ends: 245 [2024-11-12 17:48:59,041 INFO L226 Difference]: Without dead ends: 196 [2024-11-12 17:48:59,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 436 SyntacticMatches, 1 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7239 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2976, Invalid=20894, Unknown=0, NotChecked=0, Total=23870 [2024-11-12 17:48:59,051 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 368 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 2538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:48:59,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1029 Invalid, 2538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 2366 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 17:48:59,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-12 17:48:59,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-12 17:48:59,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 158 states have (on average 1.018987341772152) internal successors, (161), 158 states have internal predecessors, (161), 4 states have call successors, (4), 3 states have call predecessors, (4), 33 states have return successors, (34), 34 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-12 17:48:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 199 transitions. [2024-11-12 17:48:59,065 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 199 transitions. Word has length 227 [2024-11-12 17:48:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:48:59,065 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 199 transitions. [2024-11-12 17:48:59,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 2.6153846153846154) internal successors, (238), 90 states have internal predecessors, (238), 10 states have call successors, (12), 3 states have call predecessors, (12), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) [2024-11-12 17:48:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 199 transitions. [2024-11-12 17:48:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-12 17:48:59,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:48:59,071 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 32, 32, 32, 32, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:48:59,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-12 17:48:59,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-12 17:48:59,271 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-12 17:48:59,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:48:59,272 INFO L85 PathProgramCache]: Analyzing trace with hash -483159810, now seen corresponding path program 5 times [2024-11-12 17:48:59,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:48:59,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061963917] [2024-11-12 17:48:59,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:48:59,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:48:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:49:01,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-12 17:49:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:49:01,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-12 17:49:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat