./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum01_bug02.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/sum01_bug02.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd --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 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:14:43,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:14:43,294 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 13:14:43,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:14:43,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:14:43,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:14:43,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:14:43,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:14:43,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:14:43,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:14:43,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:14:43,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:14:43,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:14:43,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:14:43,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:14:43,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:14:43,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:14:43,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:14:43,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:14:43,356 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd 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 -> 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e [2024-11-13 13:14:43,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:14:43,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:14:43,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:14:43,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:14:43,809 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:14:43,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loops/sum01_bug02.i Unable to find full path for "g++" [2024-11-13 13:14:46,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:14:46,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:14:46,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/sv-benchmarks/c/loops/sum01_bug02.i [2024-11-13 13:14:46,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/data/c9e3734d0/3048853cb07443fd873ecabde9c29fd4/FLAG51c16e8cf [2024-11-13 13:14:46,512 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/data/c9e3734d0/3048853cb07443fd873ecabde9c29fd4 [2024-11-13 13:14:46,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:14:46,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:14:46,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:14:46,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:14:46,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:14:46,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e56aace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46, skipping insertion in model container [2024-11-13 13:14:46,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:14:46,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:14:46,781 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:14:46,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:14:46,819 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:14:46,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46 WrapperNode [2024-11-13 13:14:46,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:14:46,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:14:46,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:14:46,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:14:46,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,858 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2024-11-13 13:14:46,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:14:46,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:14:46,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:14:46,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:14:46,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,871 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,883 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]. [2024-11-13 13:14:46,884 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,884 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:14:46,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:14:46,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:14:46,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:14:46,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (1/1) ... [2024-11-13 13:14:46,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:14:46,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:46,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:14:46,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:14:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:14:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:14:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:14:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:14:47,055 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:14:47,058 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:14:47,266 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-13 13:14:47,267 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:14:47,278 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:14:47,279 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:14:47,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:14:47 BoogieIcfgContainer [2024-11-13 13:14:47,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:14:47,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:14:47,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:14:47,288 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:14:47,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:14:46" (1/3) ... [2024-11-13 13:14:47,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68615e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:14:47, skipping insertion in model container [2024-11-13 13:14:47,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:46" (2/3) ... [2024-11-13 13:14:47,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68615e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:14:47, skipping insertion in model container [2024-11-13 13:14:47,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:14:47" (3/3) ... [2024-11-13 13:14:47,291 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02.i [2024-11-13 13:14:47,312 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:14:47,317 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG sum01_bug02.i that has 1 procedures, 30 locations, 1 initial locations, 1 loop locations, and 8 error locations. [2024-11-13 13:14:47,406 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:14:47,427 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;@6cc1ba75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:14:47,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-13 13:14:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 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) [2024-11-13 13:14:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 13:14:47,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:47,442 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 13:14:47,443 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:47,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash 28696614, now seen corresponding path program 1 times [2024-11-13 13:14:47,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:47,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308858351] [2024-11-13 13:14:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:47,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:47,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:47,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:47,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308858351] [2024-11-13 13:14:47,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308858351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:47,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:47,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:14:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634399126] [2024-11-13 13:14:47,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:47,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:14:47,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:47,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:14:47,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:14:47,677 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2024-11-13 13:14:47,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:47,696 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2024-11-13 13:14:47,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:14:47,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 [2024-11-13 13:14:47,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:47,708 INFO L225 Difference]: With dead ends: 41 [2024-11-13 13:14:47,708 INFO L226 Difference]: Without dead ends: 22 [2024-11-13 13:14:47,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:14:47,720 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:47,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-13 13:14:47,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-13 13:14:47,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 21 states have internal predecessors, (23), 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) [2024-11-13 13:14:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-11-13 13:14:47,770 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 5 [2024-11-13 13:14:47,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:47,771 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-11-13 13:14:47,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2024-11-13 13:14:47,771 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-11-13 13:14:47,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 13:14:47,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:47,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 13:14:47,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:14:47,774 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:47,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:47,775 INFO L85 PathProgramCache]: Analyzing trace with hash 28695901, now seen corresponding path program 1 times [2024-11-13 13:14:47,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:47,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613680326] [2024-11-13 13:14:47,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:47,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:47,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:47,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613680326] [2024-11-13 13:14:47,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613680326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:47,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:47,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:14:47,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598157236] [2024-11-13 13:14:47,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:47,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:47,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:47,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:47,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:47,990 INFO L87 Difference]: Start difference. First operand 22 states and 23 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) [2024-11-13 13:14:48,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:48,025 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2024-11-13 13:14:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:48,027 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 [2024-11-13 13:14:48,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:48,027 INFO L225 Difference]: With dead ends: 22 [2024-11-13 13:14:48,028 INFO L226 Difference]: Without dead ends: 21 [2024-11-13 13:14:48,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:48,032 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:48,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:48,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-13 13:14:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-13 13:14:48,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 states have internal predecessors, (22), 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) [2024-11-13 13:14:48,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-11-13 13:14:48,042 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 5 [2024-11-13 13:14:48,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:48,042 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-11-13 13:14:48,045 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) [2024-11-13 13:14:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-11-13 13:14:48,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 13:14:48,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:48,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 13:14:48,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:14:48,047 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:48,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash 889573002, now seen corresponding path program 1 times [2024-11-13 13:14:48,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:48,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072968194] [2024-11-13 13:14:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:48,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:48,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:48,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:48,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072968194] [2024-11-13 13:14:48,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072968194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:48,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:48,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:48,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842408291] [2024-11-13 13:14:48,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:48,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:48,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:48,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:48,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,184 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:48,238 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2024-11-13 13:14:48,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:48,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 13:14:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:48,240 INFO L225 Difference]: With dead ends: 35 [2024-11-13 13:14:48,240 INFO L226 Difference]: Without dead ends: 32 [2024-11-13 13:14:48,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,242 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:48,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-13 13:14:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2024-11-13 13:14:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 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) [2024-11-13 13:14:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-11-13 13:14:48,252 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2024-11-13 13:14:48,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:48,252 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-11-13 13:14:48,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-11-13 13:14:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 13:14:48,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:48,253 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 13:14:48,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:14:48,254 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:48,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:48,255 INFO L85 PathProgramCache]: Analyzing trace with hash 889574252, now seen corresponding path program 1 times [2024-11-13 13:14:48,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:48,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276028096] [2024-11-13 13:14:48,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:48,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:48,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:48,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:48,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276028096] [2024-11-13 13:14:48,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276028096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:48,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:48,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:14:48,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489313596] [2024-11-13 13:14:48,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:48,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:48,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:48,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:48,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:48,350 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:48,372 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2024-11-13 13:14:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:48,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 13:14:48,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:48,373 INFO L225 Difference]: With dead ends: 40 [2024-11-13 13:14:48,373 INFO L226 Difference]: Without dead ends: 38 [2024-11-13 13:14:48,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:48,391 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:48,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 36 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-13 13:14:48,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2024-11-13 13:14:48,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 30 states have internal predecessors, (38), 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) [2024-11-13 13:14:48,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-11-13 13:14:48,403 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 6 [2024-11-13 13:14:48,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:48,403 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-13 13:14:48,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,403 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-11-13 13:14:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 13:14:48,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:48,404 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:48,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:14:48,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:48,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:48,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1807004046, now seen corresponding path program 1 times [2024-11-13 13:14:48,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:48,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406876648] [2024-11-13 13:14:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:48,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:48,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406876648] [2024-11-13 13:14:48,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406876648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:48,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:48,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:14:48,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718953688] [2024-11-13 13:14:48,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:48,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:48,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:48,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:48,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,547 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:48,575 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2024-11-13 13:14:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:48,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 13:14:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:48,577 INFO L225 Difference]: With dead ends: 53 [2024-11-13 13:14:48,577 INFO L226 Difference]: Without dead ends: 26 [2024-11-13 13:14:48,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,579 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:48,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:48,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-13 13:14:48,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-11-13 13:14:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 24 states have internal predecessors, (26), 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) [2024-11-13 13:14:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-11-13 13:14:48,587 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 7 [2024-11-13 13:14:48,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:48,587 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-13 13:14:48,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-11-13 13:14:48,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 13:14:48,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:48,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:48,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:14:48,591 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:48,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:48,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1358376778, now seen corresponding path program 1 times [2024-11-13 13:14:48,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:48,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861838871] [2024-11-13 13:14:48,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:48,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:48,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:48,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861838871] [2024-11-13 13:14:48,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861838871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:48,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:48,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:48,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009584141] [2024-11-13 13:14:48,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:48,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:48,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:48,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:48,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,672 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:48,711 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-11-13 13:14:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:48,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-13 13:14:48,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:48,712 INFO L225 Difference]: With dead ends: 29 [2024-11-13 13:14:48,713 INFO L226 Difference]: Without dead ends: 28 [2024-11-13 13:14:48,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,714 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:48,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-13 13:14:48,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-11-13 13:14:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.4) internal successors, (28), 26 states have internal predecessors, (28), 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) [2024-11-13 13:14:48,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-11-13 13:14:48,719 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 9 [2024-11-13 13:14:48,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:48,720 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-11-13 13:14:48,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,720 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-11-13 13:14:48,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 13:14:48,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:48,720 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:48,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:14:48,721 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:48,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:48,721 INFO L85 PathProgramCache]: Analyzing trace with hash -839992782, now seen corresponding path program 1 times [2024-11-13 13:14:48,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:48,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381523560] [2024-11-13 13:14:48,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:48,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:48,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:48,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:48,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381523560] [2024-11-13 13:14:48,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381523560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:48,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:48,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:48,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589701829] [2024-11-13 13:14:48,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:48,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:48,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:48,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:48,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,810 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:48,843 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2024-11-13 13:14:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:48,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-13 13:14:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:48,848 INFO L225 Difference]: With dead ends: 27 [2024-11-13 13:14:48,848 INFO L226 Difference]: Without dead ends: 26 [2024-11-13 13:14:48,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,849 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:48,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 30 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:48,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-13 13:14:48,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-13 13:14:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 25 states have internal predecessors, (27), 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) [2024-11-13 13:14:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-11-13 13:14:48,861 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 10 [2024-11-13 13:14:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:48,861 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-11-13 13:14:48,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:48,862 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-11-13 13:14:48,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 13:14:48,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:48,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:48,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:14:48,862 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:48,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:48,863 INFO L85 PathProgramCache]: Analyzing trace with hash -269972404, now seen corresponding path program 1 times [2024-11-13 13:14:48,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:48,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432740681] [2024-11-13 13:14:48,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:48,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:48,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:48,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:48,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432740681] [2024-11-13 13:14:48,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432740681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:48,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:48,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:48,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688215590] [2024-11-13 13:14:48,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:48,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:48,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:48,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:48,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:48,965 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-13 13:14:49,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:49,054 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2024-11-13 13:14:49,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:49,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-11-13 13:14:49,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:49,055 INFO L225 Difference]: With dead ends: 31 [2024-11-13 13:14:49,055 INFO L226 Difference]: Without dead ends: 29 [2024-11-13 13:14:49,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:49,056 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:49,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:49,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-13 13:14:49,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-13 13:14:49,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 28 states have internal predecessors, (30), 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) [2024-11-13 13:14:49,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2024-11-13 13:14:49,066 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 11 [2024-11-13 13:14:49,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:49,066 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-11-13 13:14:49,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-13 13:14:49,067 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2024-11-13 13:14:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 13:14:49,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:49,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:49,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:14:49,071 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:49,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:49,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1963935769, now seen corresponding path program 1 times [2024-11-13 13:14:49,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:49,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709562254] [2024-11-13 13:14:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:49,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:49,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:49,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:49,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709562254] [2024-11-13 13:14:49,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709562254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:49,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012609504] [2024-11-13 13:14:49,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:49,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:49,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:49,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:49,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:14:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:49,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:14:49,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:49,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:49,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:49,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012609504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:49,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:49,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-13 13:14:49,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555925063] [2024-11-13 13:14:49,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:49,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:14:49,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:49,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:14:49,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:14:49,592 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 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) [2024-11-13 13:14:49,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:49,865 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2024-11-13 13:14:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:14:49,866 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 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 15 [2024-11-13 13:14:49,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:49,867 INFO L225 Difference]: With dead ends: 41 [2024-11-13 13:14:49,867 INFO L226 Difference]: Without dead ends: 36 [2024-11-13 13:14:49,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-13 13:14:49,869 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 54 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:49,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 64 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:14:49,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-13 13:14:49,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 26. [2024-11-13 13:14:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 25 states have internal predecessors, (27), 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) [2024-11-13 13:14:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-11-13 13:14:49,877 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 15 [2024-11-13 13:14:49,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:49,877 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-11-13 13:14:49,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 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) [2024-11-13 13:14:49,882 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-11-13 13:14:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 13:14:49,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:49,882 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:49,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:14:50,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:50,083 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:50,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:50,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1963937019, now seen corresponding path program 1 times [2024-11-13 13:14:50,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:50,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752454836] [2024-11-13 13:14:50,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:50,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:50,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:50,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:50,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752454836] [2024-11-13 13:14:50,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752454836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:50,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165779562] [2024-11-13 13:14:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:50,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:50,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:50,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:50,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:14:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:50,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:14:50,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:50,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:14:50,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165779562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:50,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:14:50,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-13 13:14:50,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420417539] [2024-11-13 13:14:50,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:50,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:50,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:50,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:50,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:14:50,295 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-13 13:14:50,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:50,318 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2024-11-13 13:14:50,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:50,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-11-13 13:14:50,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:50,320 INFO L225 Difference]: With dead ends: 26 [2024-11-13 13:14:50,320 INFO L226 Difference]: Without dead ends: 25 [2024-11-13 13:14:50,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:14:50,321 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:50,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 21 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:50,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-13 13:14:50,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-13 13:14:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 24 states have internal predecessors, (26), 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) [2024-11-13 13:14:50,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-11-13 13:14:50,328 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 15 [2024-11-13 13:14:50,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:50,328 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-11-13 13:14:50,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-13 13:14:50,332 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-11-13 13:14:50,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 13:14:50,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:50,332 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:50,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:14:50,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 13:14:50,533 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:50,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:50,534 INFO L85 PathProgramCache]: Analyzing trace with hash 752505497, now seen corresponding path program 1 times [2024-11-13 13:14:50,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:50,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466491359] [2024-11-13 13:14:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:50,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:50,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:50,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466491359] [2024-11-13 13:14:50,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466491359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:50,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162486298] [2024-11-13 13:14:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:50,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:50,608 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:50,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:14:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:50,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:14:50,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:50,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:50,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:50,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:50,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162486298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:50,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:50,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 13:14:50,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733156331] [2024-11-13 13:14:50,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:50,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:14:50,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:50,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:14:50,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:14:50,771 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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) [2024-11-13 13:14:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:50,804 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2024-11-13 13:14:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:14:50,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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 16 [2024-11-13 13:14:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:50,809 INFO L225 Difference]: With dead ends: 62 [2024-11-13 13:14:50,809 INFO L226 Difference]: Without dead ends: 61 [2024-11-13 13:14:50,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:14:50,810 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:50,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 61 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-13 13:14:50,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2024-11-13 13:14:50,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 51 states have internal predecessors, (65), 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) [2024-11-13 13:14:50,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2024-11-13 13:14:50,827 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 65 transitions. Word has length 16 [2024-11-13 13:14:50,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:50,828 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 65 transitions. [2024-11-13 13:14:50,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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) [2024-11-13 13:14:50,828 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 65 transitions. [2024-11-13 13:14:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 13:14:50,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:50,828 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:50,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:14:51,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:51,029 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:51,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash 752511455, now seen corresponding path program 1 times [2024-11-13 13:14:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:51,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45325858] [2024-11-13 13:14:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:51,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:51,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:51,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45325858] [2024-11-13 13:14:51,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45325858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:51,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066747297] [2024-11-13 13:14:51,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:51,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:51,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:51,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:51,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:14:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:51,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:14:51,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:51,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:51,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066747297] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:51,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:51,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-13 13:14:51,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630464009] [2024-11-13 13:14:51,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:51,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 13:14:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:51,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 13:14:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:14:51,423 INFO L87 Difference]: Start difference. First operand 52 states and 65 transitions. Second operand has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 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) [2024-11-13 13:14:51,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:51,605 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2024-11-13 13:14:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:14:51,606 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 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 16 [2024-11-13 13:14:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:51,608 INFO L225 Difference]: With dead ends: 91 [2024-11-13 13:14:51,608 INFO L226 Difference]: Without dead ends: 51 [2024-11-13 13:14:51,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:14:51,609 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:51,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 59 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:51,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-13 13:14:51,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2024-11-13 13:14:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 43 states have (on average 1.255813953488372) internal successors, (54), 46 states have internal predecessors, (54), 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) [2024-11-13 13:14:51,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2024-11-13 13:14:51,622 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 16 [2024-11-13 13:14:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:51,622 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2024-11-13 13:14:51,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8666666666666667) internal successors, (43), 15 states have internal predecessors, (43), 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) [2024-11-13 13:14:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-11-13 13:14:51,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 13:14:51,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:51,623 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:51,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:14:51,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:51,823 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:51,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:51,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1142442979, now seen corresponding path program 1 times [2024-11-13 13:14:51,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:51,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466710273] [2024-11-13 13:14:51,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:51,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:51,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:51,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466710273] [2024-11-13 13:14:51,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466710273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:51,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558774995] [2024-11-13 13:14:51,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:51,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:51,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:51,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:51,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:14:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:52,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:14:52,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:52,103 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:14:52,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558774995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:52,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:14:52,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 13:14:52,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125134550] [2024-11-13 13:14:52,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:52,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:14:52,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:52,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:14:52,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:14:52,106 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2024-11-13 13:14:52,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:52,157 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-13 13:14:52,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:14:52,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 20 [2024-11-13 13:14:52,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:52,159 INFO L225 Difference]: With dead ends: 47 [2024-11-13 13:14:52,159 INFO L226 Difference]: Without dead ends: 46 [2024-11-13 13:14:52,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:14:52,160 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:52,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 42 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:52,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-13 13:14:52,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-13 13:14:52,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 43 states have (on average 1.186046511627907) internal successors, (51), 45 states have internal predecessors, (51), 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) [2024-11-13 13:14:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2024-11-13 13:14:52,167 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 20 [2024-11-13 13:14:52,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:52,167 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2024-11-13 13:14:52,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2024-11-13 13:14:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2024-11-13 13:14:52,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 13:14:52,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:52,168 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 13:14:52,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 13:14:52,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 13:14:52,373 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:52,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:52,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1055993917, now seen corresponding path program 1 times [2024-11-13 13:14:52,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:52,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904160367] [2024-11-13 13:14:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:52,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:52,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:52,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904160367] [2024-11-13 13:14:52,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904160367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:52,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204011025] [2024-11-13 13:14:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:52,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:52,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:52,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:52,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:14:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:52,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:14:52,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:52,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:52,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204011025] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:52,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:52,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-13 13:14:52,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469924310] [2024-11-13 13:14:52,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:52,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:14:52,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:52,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:14:52,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:14:52,723 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 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) [2024-11-13 13:14:52,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:52,822 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2024-11-13 13:14:52,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:14:52,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 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 21 [2024-11-13 13:14:52,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:52,824 INFO L225 Difference]: With dead ends: 68 [2024-11-13 13:14:52,824 INFO L226 Difference]: Without dead ends: 67 [2024-11-13 13:14:52,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:14:52,825 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:52,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 70 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-13 13:14:52,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2024-11-13 13:14:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 64 states have internal predecessors, (73), 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) [2024-11-13 13:14:52,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2024-11-13 13:14:52,834 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 21 [2024-11-13 13:14:52,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:52,839 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2024-11-13 13:14:52,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 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) [2024-11-13 13:14:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2024-11-13 13:14:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 13:14:52,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:52,840 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-13 13:14:52,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 13:14:53,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 13:14:53,041 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:53,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:53,041 INFO L85 PathProgramCache]: Analyzing trace with hash 56406634, now seen corresponding path program 1 times [2024-11-13 13:14:53,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:53,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74686442] [2024-11-13 13:14:53,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:53,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:53,184 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:53,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:53,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74686442] [2024-11-13 13:14:53,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74686442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:53,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631072154] [2024-11-13 13:14:53,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:53,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:53,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:53,188 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:53,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:14:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:53,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:14:53,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:53,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:53,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631072154] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:53,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:53,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2024-11-13 13:14:53,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037058315] [2024-11-13 13:14:53,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:53,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 13:14:53,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:53,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 13:14:53,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:14:53,532 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand has 21 states, 20 states have (on average 3.95) internal successors, (79), 21 states have internal predecessors, (79), 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) [2024-11-13 13:14:53,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:53,792 INFO L93 Difference]: Finished difference Result 142 states and 169 transitions. [2024-11-13 13:14:53,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 13:14:53,792 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.95) internal successors, (79), 21 states have internal predecessors, (79), 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 27 [2024-11-13 13:14:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:53,793 INFO L225 Difference]: With dead ends: 142 [2024-11-13 13:14:53,794 INFO L226 Difference]: Without dead ends: 141 [2024-11-13 13:14:53,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2024-11-13 13:14:53,795 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 36 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:53,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 119 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:53,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-13 13:14:53,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 131. [2024-11-13 13:14:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 128 states have (on average 1.203125) internal successors, (154), 130 states have internal predecessors, (154), 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) [2024-11-13 13:14:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2024-11-13 13:14:53,820 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 27 [2024-11-13 13:14:53,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:53,823 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2024-11-13 13:14:53,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.95) internal successors, (79), 21 states have internal predecessors, (79), 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) [2024-11-13 13:14:53,824 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2024-11-13 13:14:53,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 13:14:53,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:53,825 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2024-11-13 13:14:53,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 13:14:54,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 13:14:54,026 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:54,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:54,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1142663304, now seen corresponding path program 2 times [2024-11-13 13:14:54,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:54,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855093834] [2024-11-13 13:14:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:54,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:54,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855093834] [2024-11-13 13:14:54,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855093834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:54,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624804507] [2024-11-13 13:14:54,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:14:54,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:54,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:54,144 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:54,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:14:54,215 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:14:54,215 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:14:54,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:14:54,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:54,297 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:54,297 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:54,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624804507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:54,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:54,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-13 13:14:54,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9935510] [2024-11-13 13:14:54,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:54,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:14:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:54,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:14:54,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:14:54,442 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 13 states have internal predecessors, (91), 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) [2024-11-13 13:14:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:54,501 INFO L93 Difference]: Finished difference Result 262 states and 312 transitions. [2024-11-13 13:14:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 13:14:54,502 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 13 states have internal predecessors, (91), 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 43 [2024-11-13 13:14:54,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:54,505 INFO L225 Difference]: With dead ends: 262 [2024-11-13 13:14:54,506 INFO L226 Difference]: Without dead ends: 261 [2024-11-13 13:14:54,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:14:54,507 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 44 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:54,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 124 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:54,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-13 13:14:54,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 247. [2024-11-13 13:14:54,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 244 states have (on average 1.2131147540983607) internal successors, (296), 246 states have internal predecessors, (296), 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) [2024-11-13 13:14:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 296 transitions. [2024-11-13 13:14:54,547 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 296 transitions. Word has length 43 [2024-11-13 13:14:54,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:54,548 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 296 transitions. [2024-11-13 13:14:54,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.583333333333333) internal successors, (91), 13 states have internal predecessors, (91), 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) [2024-11-13 13:14:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 296 transitions. [2024-11-13 13:14:54,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 13:14:54,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:54,551 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-13 13:14:54,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 13:14:54,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 13:14:54,756 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:54,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:54,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1343020044, now seen corresponding path program 1 times [2024-11-13 13:14:54,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:54,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703639670] [2024-11-13 13:14:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:54,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:54,947 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:54,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703639670] [2024-11-13 13:14:54,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703639670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458188767] [2024-11-13 13:14:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:54,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:54,950 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:54,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 13:14:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:55,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:14:55,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 13:14:55,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 13:14:55,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458188767] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:55,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:55,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 34 [2024-11-13 13:14:55,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800666304] [2024-11-13 13:14:55,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:55,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 13:14:55,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:55,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 13:14:55,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=942, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 13:14:55,562 INFO L87 Difference]: Start difference. First operand 247 states and 296 transitions. Second operand has 34 states, 34 states have (on average 3.3529411764705883) internal successors, (114), 34 states have internal predecessors, (114), 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) [2024-11-13 13:14:55,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:55,801 INFO L93 Difference]: Finished difference Result 345 states and 416 transitions. [2024-11-13 13:14:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 13:14:55,802 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.3529411764705883) internal successors, (114), 34 states have internal predecessors, (114), 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 44 [2024-11-13 13:14:55,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:55,804 INFO L225 Difference]: With dead ends: 345 [2024-11-13 13:14:55,804 INFO L226 Difference]: Without dead ends: 170 [2024-11-13 13:14:55,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=251, Invalid=1309, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 13:14:55,807 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 18 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:55,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 103 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:55,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-13 13:14:55,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 162. [2024-11-13 13:14:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 159 states have (on average 1.1886792452830188) internal successors, (189), 161 states have internal predecessors, (189), 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) [2024-11-13 13:14:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 189 transitions. [2024-11-13 13:14:55,820 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 189 transitions. Word has length 44 [2024-11-13 13:14:55,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:55,821 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 189 transitions. [2024-11-13 13:14:55,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.3529411764705883) internal successors, (114), 34 states have internal predecessors, (114), 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) [2024-11-13 13:14:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 189 transitions. [2024-11-13 13:14:55,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 13:14:55,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:55,825 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2024-11-13 13:14:55,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-13 13:14:56,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 13:14:56,026 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:56,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:56,027 INFO L85 PathProgramCache]: Analyzing trace with hash -569709313, now seen corresponding path program 2 times [2024-11-13 13:14:56,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:56,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976246727] [2024-11-13 13:14:56,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:56,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 62 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:56,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:56,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976246727] [2024-11-13 13:14:56,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976246727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:56,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379954903] [2024-11-13 13:14:56,333 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:14:56,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:56,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:56,335 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:56,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:14:56,380 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 13:14:56,381 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:14:56,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:14:56,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-13 13:14:56,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-13 13:14:56,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379954903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:56,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:56,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 18 [2024-11-13 13:14:56,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60254792] [2024-11-13 13:14:56,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:56,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 13:14:56,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:56,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 13:14:56,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:14:56,903 INFO L87 Difference]: Start difference. First operand 162 states and 189 transitions. Second operand has 19 states, 18 states have (on average 4.055555555555555) internal successors, (73), 19 states have internal predecessors, (73), 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) [2024-11-13 13:14:57,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:57,482 INFO L93 Difference]: Finished difference Result 242 states and 294 transitions. [2024-11-13 13:14:57,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 13:14:57,482 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.055555555555555) internal successors, (73), 19 states have internal predecessors, (73), 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 55 [2024-11-13 13:14:57,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:57,483 INFO L225 Difference]: With dead ends: 242 [2024-11-13 13:14:57,483 INFO L226 Difference]: Without dead ends: 241 [2024-11-13 13:14:57,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=385, Invalid=1595, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 13:14:57,485 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:57,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 96 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:14:57,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-13 13:14:57,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 161. [2024-11-13 13:14:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 159 states have (on average 1.119496855345912) internal successors, (178), 160 states have internal predecessors, (178), 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) [2024-11-13 13:14:57,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 178 transitions. [2024-11-13 13:14:57,497 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 178 transitions. Word has length 55 [2024-11-13 13:14:57,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:57,497 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 178 transitions. [2024-11-13 13:14:57,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.055555555555555) internal successors, (73), 19 states have internal predecessors, (73), 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) [2024-11-13 13:14:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 178 transitions. [2024-11-13 13:14:57,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-13 13:14:57,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:57,498 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 5, 5, 5, 4, 1, 1, 1, 1] [2024-11-13 13:14:57,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 13:14:57,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 13:14:57,699 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:57,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2103254454, now seen corresponding path program 2 times [2024-11-13 13:14:57,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:57,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379827416] [2024-11-13 13:14:57,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:57,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:58,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:58,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379827416] [2024-11-13 13:14:58,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379827416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:58,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88724061] [2024-11-13 13:14:58,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:14:58,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:58,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:58,147 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:58,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 13:14:58,224 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:14:58,225 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:14:58,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 13:14:58,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:58,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:58,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88724061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:58,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:14:58,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37 [2024-11-13 13:14:58,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029597067] [2024-11-13 13:14:58,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:58,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-13 13:14:58,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:58,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-13 13:14:58,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 13:14:58,916 INFO L87 Difference]: Start difference. First operand 161 states and 178 transitions. Second operand has 38 states, 37 states have (on average 3.918918918918919) internal successors, (145), 38 states have internal predecessors, (145), 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) [2024-11-13 13:14:59,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:59,115 INFO L93 Difference]: Finished difference Result 687 states and 819 transitions. [2024-11-13 13:14:59,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-13 13:14:59,116 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 3.918918918918919) internal successors, (145), 38 states have internal predecessors, (145), 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 73 [2024-11-13 13:14:59,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:59,119 INFO L225 Difference]: With dead ends: 687 [2024-11-13 13:14:59,119 INFO L226 Difference]: Without dead ends: 686 [2024-11-13 13:14:59,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 13:14:59,121 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 65 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:59,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 141 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:59,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-13 13:14:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 678. [2024-11-13 13:14:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 676 states have (on average 1.1242603550295858) internal successors, (760), 677 states have internal predecessors, (760), 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) [2024-11-13 13:14:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 760 transitions. [2024-11-13 13:14:59,162 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 760 transitions. Word has length 73 [2024-11-13 13:14:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:59,162 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 760 transitions. [2024-11-13 13:14:59,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 3.918918918918919) internal successors, (145), 38 states have internal predecessors, (145), 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) [2024-11-13 13:14:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 760 transitions. [2024-11-13 13:14:59,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-13 13:14:59,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:59,164 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2024-11-13 13:14:59,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 13:14:59,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:59,368 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:14:59,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:59,368 INFO L85 PathProgramCache]: Analyzing trace with hash -111263256, now seen corresponding path program 3 times [2024-11-13 13:14:59,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:59,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001540504] [2024-11-13 13:14:59,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:59,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:59,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:59,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001540504] [2024-11-13 13:14:59,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001540504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:14:59,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174204887] [2024-11-13 13:14:59,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 13:14:59,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:59,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:59,683 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:59,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 13:14:59,761 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-13 13:14:59,762 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:14:59,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-13 13:14:59,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:00,912 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:15:00,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174204887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:15:00,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:15:00,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [12] total 45 [2024-11-13 13:15:00,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108809750] [2024-11-13 13:15:00,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:15:00,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-13 13:15:00,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:15:00,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-13 13:15:00,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1672, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 13:15:00,915 INFO L87 Difference]: Start difference. First operand 678 states and 760 transitions. Second operand has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 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) [2024-11-13 13:15:01,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:01,333 INFO L93 Difference]: Finished difference Result 679 states and 760 transitions. [2024-11-13 13:15:01,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 13:15:01,333 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 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 97 [2024-11-13 13:15:01,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:01,335 INFO L225 Difference]: With dead ends: 679 [2024-11-13 13:15:01,335 INFO L226 Difference]: Without dead ends: 144 [2024-11-13 13:15:01,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=308, Invalid=1672, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 13:15:01,340 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:01,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 91 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:15:01,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-13 13:15:01,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-13 13:15:01,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.006993006993007) internal successors, (144), 143 states have internal predecessors, (144), 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) [2024-11-13 13:15:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2024-11-13 13:15:01,353 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 97 [2024-11-13 13:15:01,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:01,353 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2024-11-13 13:15:01,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 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) [2024-11-13 13:15:01,354 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2024-11-13 13:15:01,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-13 13:15:01,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:01,357 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 14, 5, 5, 5, 1, 1, 1, 1] [2024-11-13 13:15:01,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 13:15:01,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:15:01,558 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:15:01,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:01,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1276679638, now seen corresponding path program 3 times [2024-11-13 13:15:01,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:15:01,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147164288] [2024-11-13 13:15:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:01,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:15:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:02,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 0 proven. 1163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:02,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:15:02,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147164288] [2024-11-13 13:15:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147164288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:15:02,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162697607] [2024-11-13 13:15:02,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 13:15:02,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:15:02,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:15:02,923 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:15:02,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 13:15:03,025 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-13 13:15:03,026 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:15:03,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-13 13:15:03,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 62 proven. 1101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:03,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:15:05,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 62 proven. 1101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:05,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162697607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:15:05,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:15:05,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 40, 40] total 87 [2024-11-13 13:15:05,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419002067] [2024-11-13 13:15:05,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:15:05,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-11-13 13:15:05,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:15:05,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-11-13 13:15:05,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1368, Invalid=6288, Unknown=0, NotChecked=0, Total=7656 [2024-11-13 13:15:05,747 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand has 88 states, 87 states have (on average 3.7241379310344827) internal successors, (324), 88 states have internal predecessors, (324), 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) [2024-11-13 13:15:09,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:09,239 INFO L93 Difference]: Finished difference Result 257 states and 272 transitions. [2024-11-13 13:15:09,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-11-13 13:15:09,240 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 3.7241379310344827) internal successors, (324), 88 states have internal predecessors, (324), 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 143 [2024-11-13 13:15:09,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:09,242 INFO L225 Difference]: With dead ends: 257 [2024-11-13 13:15:09,242 INFO L226 Difference]: Without dead ends: 256 [2024-11-13 13:15:09,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9880 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=5544, Invalid=29988, Unknown=0, NotChecked=0, Total=35532 [2024-11-13 13:15:09,250 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 164 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:09,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 133 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:15:09,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-13 13:15:09,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-11-13 13:15:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.003921568627451) internal successors, (256), 255 states have internal predecessors, (256), 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) [2024-11-13 13:15:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 256 transitions. [2024-11-13 13:15:09,284 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 256 transitions. Word has length 143 [2024-11-13 13:15:09,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:09,284 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 256 transitions. [2024-11-13 13:15:09,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 3.7241379310344827) internal successors, (324), 88 states have internal predecessors, (324), 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) [2024-11-13 13:15:09,285 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 256 transitions. [2024-11-13 13:15:09,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-13 13:15:09,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:09,287 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 30, 5, 5, 5, 1, 1, 1, 1] [2024-11-13 13:15:09,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 13:15:09,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-13 13:15:09,488 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:15:09,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:09,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2110242090, now seen corresponding path program 4 times [2024-11-13 13:15:09,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:15:09,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199533779] [2024-11-13 13:15:09,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:09,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:15:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:13,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:15:13,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199533779] [2024-11-13 13:15:13,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199533779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:15:13,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725084585] [2024-11-13 13:15:13,455 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 13:15:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:15:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:15:13,457 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:15:13,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 13:15:13,585 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 13:15:13,585 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:15:13,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-13 13:15:13,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:14,036 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:14,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:15:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:18,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725084585] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:15:18,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:15:18,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 141 [2024-11-13 13:15:18,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161542317] [2024-11-13 13:15:18,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:15:18,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2024-11-13 13:15:18,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:15:18,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2024-11-13 13:15:18,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2024-11-13 13:15:18,697 INFO L87 Difference]: Start difference. First operand 256 states and 256 transitions. Second operand has 142 states, 141 states have (on average 3.6099290780141846) internal successors, (509), 142 states have internal predecessors, (509), 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) [2024-11-13 13:15:19,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:19,335 INFO L93 Difference]: Finished difference Result 509 states and 544 transitions. [2024-11-13 13:15:19,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2024-11-13 13:15:19,336 INFO L78 Accepts]: Start accepts. Automaton has has 142 states, 141 states have (on average 3.6099290780141846) internal successors, (509), 142 states have internal predecessors, (509), 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 255 [2024-11-13 13:15:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:19,339 INFO L225 Difference]: With dead ends: 509 [2024-11-13 13:15:19,339 INFO L226 Difference]: Without dead ends: 508 [2024-11-13 13:15:19,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5917 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2024-11-13 13:15:19,343 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:19,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 275 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:15:19,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-13 13:15:19,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-11-13 13:15:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 507 states have (on average 1.0019723865877712) internal successors, (508), 507 states have internal predecessors, (508), 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) [2024-11-13 13:15:19,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 508 transitions. [2024-11-13 13:15:19,378 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 508 transitions. Word has length 255 [2024-11-13 13:15:19,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:19,378 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 508 transitions. [2024-11-13 13:15:19,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 141 states have (on average 3.6099290780141846) internal successors, (509), 142 states have internal predecessors, (509), 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) [2024-11-13 13:15:19,379 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 508 transitions. [2024-11-13 13:15:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-13 13:15:19,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:19,388 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 66, 5, 5, 5, 1, 1, 1, 1] [2024-11-13 13:15:19,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 13:15:19,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-13 13:15:19,589 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:15:19,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:19,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2018961386, now seen corresponding path program 5 times [2024-11-13 13:15:19,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:15:19,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412123520] [2024-11-13 13:15:19,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:19,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:15:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:15:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:32,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:15:32,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412123520] [2024-11-13 13:15:32,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412123520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:15:32,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977694881] [2024-11-13 13:15:32,741 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 13:15:32,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:15:32,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:15:32,743 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:15:32,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 13:15:33,074 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2024-11-13 13:15:33,074 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:15:33,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 143 conjuncts are in the unsatisfiable core [2024-11-13 13:15:33,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:15:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:33,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:15:52,899 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:15:52,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977694881] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:15:52,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:15:52,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 285 [2024-11-13 13:15:52,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595946504] [2024-11-13 13:15:52,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:15:52,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 286 states [2024-11-13 13:15:52,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:15:52,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 286 interpolants. [2024-11-13 13:15:52,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20591, Invalid=60919, Unknown=0, NotChecked=0, Total=81510 [2024-11-13 13:15:52,917 INFO L87 Difference]: Start difference. First operand 508 states and 508 transitions. Second operand has 286 states, 285 states have (on average 3.5543859649122806) internal successors, (1013), 286 states have internal predecessors, (1013), 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) [2024-11-13 13:15:55,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:15:55,624 INFO L93 Difference]: Finished difference Result 1013 states and 1084 transitions. [2024-11-13 13:15:55,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2024-11-13 13:15:55,626 INFO L78 Accepts]: Start accepts. Automaton has has 286 states, 285 states have (on average 3.5543859649122806) internal successors, (1013), 286 states have internal predecessors, (1013), 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 507 [2024-11-13 13:15:55,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:15:55,631 INFO L225 Difference]: With dead ends: 1013 [2024-11-13 13:15:55,631 INFO L226 Difference]: Without dead ends: 1012 [2024-11-13 13:15:55,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1155 GetRequests, 871 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24781 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=20591, Invalid=60919, Unknown=0, NotChecked=0, Total=81510 [2024-11-13 13:15:55,636 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:15:55,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 468 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 13:15:55,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-13 13:15:55,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2024-11-13 13:15:55,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1011 states have (on average 1.0009891196834817) internal successors, (1012), 1011 states have internal predecessors, (1012), 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) [2024-11-13 13:15:55,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1012 transitions. [2024-11-13 13:15:55,704 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1012 transitions. Word has length 507 [2024-11-13 13:15:55,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:15:55,705 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1012 transitions. [2024-11-13 13:15:55,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 286 states, 285 states have (on average 3.5543859649122806) internal successors, (1013), 286 states have internal predecessors, (1013), 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) [2024-11-13 13:15:55,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1012 transitions. [2024-11-13 13:15:55,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2024-11-13 13:15:55,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:15:55,758 INFO L215 NwaCegarLoop]: trace histogram [143, 143, 142, 142, 142, 142, 138, 5, 5, 5, 1, 1, 1, 1] [2024-11-13 13:15:55,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-13 13:15:55,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-13 13:15:55,959 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:15:55,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:15:55,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1427677846, now seen corresponding path program 6 times [2024-11-13 13:15:55,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:15:55,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281919792] [2024-11-13 13:15:55,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:15:55,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:15:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:16:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 70665 backedges. 0 proven. 70665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:16:54,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:16:54,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281919792] [2024-11-13 13:16:54,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281919792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:16:54,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962171653] [2024-11-13 13:16:54,533 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 13:16:54,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:16:54,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:16:54,535 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:16:54,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 13:16:55,685 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 139 check-sat command(s) [2024-11-13 13:16:55,685 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:16:55,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 287 conjuncts are in the unsatisfiable core [2024-11-13 13:16:55,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:16:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 70665 backedges. 0 proven. 70665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:16:57,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:18:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 70665 backedges. 0 proven. 70665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:18:19,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962171653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:18:19,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:18:19,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [287, 287, 287] total 573 [2024-11-13 13:18:19,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138164740] [2024-11-13 13:18:19,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:18:19,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 574 states [2024-11-13 13:18:19,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:18:19,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 574 interpolants. [2024-11-13 13:18:19,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82655, Invalid=246247, Unknown=0, NotChecked=0, Total=328902 [2024-11-13 13:18:19,411 INFO L87 Difference]: Start difference. First operand 1012 states and 1012 transitions. Second operand has 574 states, 573 states have (on average 3.527050610820244) internal successors, (2021), 574 states have internal predecessors, (2021), 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) [2024-11-13 13:18:31,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:18:31,913 INFO L93 Difference]: Finished difference Result 2021 states and 2164 transitions. [2024-11-13 13:18:31,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 574 states. [2024-11-13 13:18:31,915 INFO L78 Accepts]: Start accepts. Automaton has has 574 states, 573 states have (on average 3.527050610820244) internal successors, (2021), 574 states have internal predecessors, (2021), 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 1011 [2024-11-13 13:18:31,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:18:31,925 INFO L225 Difference]: With dead ends: 2021 [2024-11-13 13:18:31,925 INFO L226 Difference]: Without dead ends: 2020 [2024-11-13 13:18:31,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2307 GetRequests, 1735 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101389 ImplicationChecksByTransitivity, 108.2s TimeCoverageRelationStatistics Valid=82655, Invalid=246247, Unknown=0, NotChecked=0, Total=328902 [2024-11-13 13:18:31,941 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:18:31,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 943 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 13:18:31,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2024-11-13 13:18:32,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 2020. [2024-11-13 13:18:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 2019 states have (on average 1.0004952947003467) internal successors, (2020), 2019 states have internal predecessors, (2020), 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) [2024-11-13 13:18:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2020 transitions. [2024-11-13 13:18:32,064 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2020 transitions. Word has length 1011 [2024-11-13 13:18:32,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:18:32,066 INFO L471 AbstractCegarLoop]: Abstraction has 2020 states and 2020 transitions. [2024-11-13 13:18:32,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 574 states, 573 states have (on average 3.527050610820244) internal successors, (2021), 574 states have internal predecessors, (2021), 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) [2024-11-13 13:18:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2020 transitions. [2024-11-13 13:18:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2020 [2024-11-13 13:18:32,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:18:32,104 INFO L215 NwaCegarLoop]: trace histogram [287, 287, 286, 286, 286, 286, 282, 5, 5, 5, 1, 1, 1, 1] [2024-11-13 13:18:32,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-13 13:18:32,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 13:18:32,305 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-13 13:18:32,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:18:32,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1628489834, now seen corresponding path program 7 times [2024-11-13 13:18:32,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:18:32,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509847966] [2024-11-13 13:18:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:18:32,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:18:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:23:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 286449 backedges. 0 proven. 286449 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:23:49,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:23:49,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509847966] [2024-11-13 13:23:49,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509847966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:23:49,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439094056] [2024-11-13 13:23:49,422 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 13:23:49,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:23:49,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:23:49,426 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:23:49,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8939c246-356b-4469-b244-aabbdc05de33/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 13:23:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:23:50,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 4055 conjuncts, 575 conjuncts are in the unsatisfiable core [2024-11-13 13:23:50,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:23:52,979 INFO L134 CoverageAnalysis]: Checked inductivity of 286449 backedges. 0 proven. 286449 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:23:52,979 INFO L311 TraceCheckSpWp]: Computing backward predicates...