./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:18:55,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:18:56,010 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 05:18:56,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:18:56,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:18:56,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:18:56,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:18:56,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:18:56,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:18:56,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:18:56,060 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:18:56,060 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:18:56,060 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:18:56,060 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:18:56,060 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:18:56,060 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:18:56,061 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:18:56,061 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:18:56,061 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:18:56,061 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:18:56,062 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:18:56,062 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:18:56,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:18:56,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:18:56,063 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:18:56,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:18:56,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:18:56,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:18:56,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:18:56,063 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:18:56,064 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:18:56,064 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:18:56,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:18:56,064 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:18:56,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:18:56,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:18:56,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:18:56,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:18:56,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:18:56,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:18:56,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:18:56,066 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:18:56,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:18:56,066 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:18:56,066 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:18:56,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:18:56,066 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 [2024-11-14 05:18:56,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:18:56,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:18:56,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:18:56,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:18:56,531 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:18:56,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c Unable to find full path for "g++" [2024-11-14 05:18:59,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:18:59,379 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:18:59,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2024-11-14 05:18:59,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/data/2741a8341/21eeae5872a64ad08f0f4d43d457c904/FLAGa874872ba [2024-11-14 05:18:59,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/data/2741a8341/21eeae5872a64ad08f0f4d43d457c904 [2024-11-14 05:18:59,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:18:59,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:18:59,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:18:59,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:18:59,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:18:59,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306aef25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59, skipping insertion in model container [2024-11-14 05:18:59,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,472 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:18:59,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:18:59,718 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:18:59,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:18:59,759 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:18:59,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59 WrapperNode [2024-11-14 05:18:59,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:18:59,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:18:59,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:18:59,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:18:59,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,801 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-11-14 05:18:59,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:18:59,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:18:59,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:18:59,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:18:59,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,814 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:18:59,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:18:59,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:18:59,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:18:59,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (1/1) ... [2024-11-14 05:18:59,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:18:59,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:18:59,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:18:59,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:18:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:18:59,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:19:00,030 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:19:00,033 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:19:00,206 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-14 05:19:00,206 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:19:00,266 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:19:00,266 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 05:19:00,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:19:00 BoogieIcfgContainer [2024-11-14 05:19:00,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:19:00,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:19:00,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:19:00,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:19:00,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:18:59" (1/3) ... [2024-11-14 05:19:00,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e1cf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:19:00, skipping insertion in model container [2024-11-14 05:19:00,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:18:59" (2/3) ... [2024-11-14 05:19:00,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e1cf9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:19:00, skipping insertion in model container [2024-11-14 05:19:00,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:19:00" (3/3) ... [2024-11-14 05:19:00,286 INFO L112 eAbstractionObserver]: Analyzing ICFG MinusUserDefined.c [2024-11-14 05:19:00,311 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:19:00,314 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG MinusUserDefined.c that has 1 procedures, 29 locations, 1 initial locations, 3 loop locations, and 12 error locations. [2024-11-14 05:19:00,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:19:00,432 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=FINITE_AUTOMATA, 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;@b683091, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:19:00,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-14 05:19:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.9375) internal successors, (31), 28 states have internal predecessors, (31), 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) [2024-11-14 05:19:00,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 05:19:00,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:00,455 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 05:19:00,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:00,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:00,466 INFO L85 PathProgramCache]: Analyzing trace with hash 91616, now seen corresponding path program 1 times [2024-11-14 05:19:00,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:00,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851761039] [2024-11-14 05:19:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:00,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:00,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:00,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:00,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851761039] [2024-11-14 05:19:00,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851761039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:00,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:00,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:19:00,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83860886] [2024-11-14 05:19:00,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:00,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:19:00,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:00,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:19:00,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:00,755 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.9375) internal successors, (31), 28 states have internal predecessors, (31), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-14 05:19:00,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:00,832 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2024-11-14 05:19:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:19:00,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-14 05:19:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:00,843 INFO L225 Difference]: With dead ends: 32 [2024-11-14 05:19:00,843 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 05:19:00,847 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 [2024-11-14 05:19:00,851 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 12 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:00,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 26 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 05:19:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-11-14 05:19:00,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.75) internal successors, (28), 25 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) [2024-11-14 05:19:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-14 05:19:00,893 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 3 [2024-11-14 05:19:00,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:00,893 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-14 05:19:00,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-14 05:19:00,894 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-14 05:19:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:19:00,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:00,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:19:00,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:19:00,895 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:00,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:00,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2896390, now seen corresponding path program 1 times [2024-11-14 05:19:00,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:00,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337503879] [2024-11-14 05:19:00,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:00,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:00,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:00,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337503879] [2024-11-14 05:19:00,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337503879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:00,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:00,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:19:00,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993000695] [2024-11-14 05:19:00,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:00,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:19:00,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:00,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:19:00,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:00,946 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:01,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:01,025 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-11-14 05:19:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:19:01,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 05:19:01,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:01,027 INFO L225 Difference]: With dead ends: 36 [2024-11-14 05:19:01,027 INFO L226 Difference]: Without dead ends: 35 [2024-11-14 05:19:01,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,028 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:01,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 17 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:01,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-14 05:19:01,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-11-14 05:19:01,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 32 states have internal predecessors, (40), 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) [2024-11-14 05:19:01,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-11-14 05:19:01,037 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 4 [2024-11-14 05:19:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:01,037 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-14 05:19:01,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:01,037 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-14 05:19:01,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:19:01,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:01,038 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:19:01,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:19:01,038 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:01,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:01,039 INFO L85 PathProgramCache]: Analyzing trace with hash 2840140, now seen corresponding path program 1 times [2024-11-14 05:19:01,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:01,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623028671] [2024-11-14 05:19:01,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:01,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:01,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:01,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623028671] [2024-11-14 05:19:01,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623028671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:01,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:01,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:19:01,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481716672] [2024-11-14 05:19:01,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:01,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:19:01,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:19:01,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,100 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:01,140 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2024-11-14 05:19:01,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:19:01,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-14 05:19:01,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:01,142 INFO L225 Difference]: With dead ends: 33 [2024-11-14 05:19:01,142 INFO L226 Difference]: Without dead ends: 31 [2024-11-14 05:19:01,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,144 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:01,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 16 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:19:01,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-14 05:19:01,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-14 05:19:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.6521739130434783) 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) [2024-11-14 05:19:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-11-14 05:19:01,153 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 4 [2024-11-14 05:19:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:01,153 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-11-14 05:19:01,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:19:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-11-14 05:19:01,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:19:01,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:01,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:19:01,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:19:01,158 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:01,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash 89788152, now seen corresponding path program 1 times [2024-11-14 05:19:01,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:01,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85057399] [2024-11-14 05:19:01,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:01,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:01,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85057399] [2024-11-14 05:19:01,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85057399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:01,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:01,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:19:01,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686456312] [2024-11-14 05:19:01,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:01,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:19:01,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:01,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:19:01,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:01,272 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2024-11-14 05:19:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:01,384 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-11-14 05:19:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:19:01,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2024-11-14 05:19:01,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:01,386 INFO L225 Difference]: With dead ends: 31 [2024-11-14 05:19:01,387 INFO L226 Difference]: Without dead ends: 30 [2024-11-14 05:19:01,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:01,388 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:01,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:01,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-14 05:19:01,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-14 05:19:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.565217391304348) internal successors, (36), 29 states have internal predecessors, (36), 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) [2024-11-14 05:19:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2024-11-14 05:19:01,405 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 5 [2024-11-14 05:19:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:01,405 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2024-11-14 05:19:01,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2024-11-14 05:19:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2024-11-14 05:19:01,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 05:19:01,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:01,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 05:19:01,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:19:01,407 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:01,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:01,408 INFO L85 PathProgramCache]: Analyzing trace with hash 88044386, now seen corresponding path program 1 times [2024-11-14 05:19:01,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:01,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402532174] [2024-11-14 05:19:01,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:01,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:01,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402532174] [2024-11-14 05:19:01,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402532174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:01,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:01,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:19:01,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553820444] [2024-11-14 05:19:01,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:01,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:19:01,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:01,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:19:01,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,460 INFO L87 Difference]: Start difference. First operand 30 states and 36 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) [2024-11-14 05:19:01,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:01,549 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2024-11-14 05:19:01,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:19:01,550 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 [2024-11-14 05:19:01,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:01,550 INFO L225 Difference]: With dead ends: 30 [2024-11-14 05:19:01,551 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 05:19:01,552 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 [2024-11-14 05:19:01,552 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:01,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:19:01,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 05:19:01,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-14 05:19:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 27 states have internal predecessors, (34), 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) [2024-11-14 05:19:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2024-11-14 05:19:01,562 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 5 [2024-11-14 05:19:01,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:01,562 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2024-11-14 05:19:01,562 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) [2024-11-14 05:19:01,562 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-11-14 05:19:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 05:19:01,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:01,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 05:19:01,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:19:01,563 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:01,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:01,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1511534520, now seen corresponding path program 1 times [2024-11-14 05:19:01,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:01,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413585727] [2024-11-14 05:19:01,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:01,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:01,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:01,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413585727] [2024-11-14 05:19:01,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413585727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:01,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:01,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:19:01,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475140977] [2024-11-14 05:19:01,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:01,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:19:01,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:01,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:19:01,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,598 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-14 05:19:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:01,620 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2024-11-14 05:19:01,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:19:01,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2024-11-14 05:19:01,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:01,622 INFO L225 Difference]: With dead ends: 28 [2024-11-14 05:19:01,622 INFO L226 Difference]: Without dead ends: 27 [2024-11-14 05:19:01,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,623 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:01,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:19:01,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-14 05:19:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-14 05:19:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.391304347826087) internal successors, (32), 26 states have internal predecessors, (32), 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) [2024-11-14 05:19:01,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2024-11-14 05:19:01,629 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 6 [2024-11-14 05:19:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:01,630 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2024-11-14 05:19:01,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-14 05:19:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-11-14 05:19:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 05:19:01,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:01,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 05:19:01,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:19:01,631 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:01,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:01,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1565591282, now seen corresponding path program 1 times [2024-11-14 05:19:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:01,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579037942] [2024-11-14 05:19:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:01,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:01,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:01,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579037942] [2024-11-14 05:19:01,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579037942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:01,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:01,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:19:01,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115382105] [2024-11-14 05:19:01,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:01,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:19:01,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:01,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:19:01,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,667 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-14 05:19:01,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:01,702 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-14 05:19:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:19:01,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2024-11-14 05:19:01,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:01,703 INFO L225 Difference]: With dead ends: 27 [2024-11-14 05:19:01,703 INFO L226 Difference]: Without dead ends: 25 [2024-11-14 05:19:01,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,704 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:01,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:19:01,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-14 05:19:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-14 05:19:01,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 24 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) [2024-11-14 05:19:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-11-14 05:19:01,711 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2024-11-14 05:19:01,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:01,711 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-14 05:19:01,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2024-11-14 05:19:01,712 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-14 05:19:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:19:01,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:01,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:01,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:19:01,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:01,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:01,713 INFO L85 PathProgramCache]: Analyzing trace with hash 387070202, now seen corresponding path program 1 times [2024-11-14 05:19:01,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:01,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113348181] [2024-11-14 05:19:01,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:01,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:01,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:01,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:01,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113348181] [2024-11-14 05:19:01,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113348181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:01,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:01,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 05:19:01,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802554317] [2024-11-14 05:19:01,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:01,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:19:01,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:01,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:19:01,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,773 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-11-14 05:19:01,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:01,814 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2024-11-14 05:19:01,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:19:01,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2024-11-14 05:19:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:01,816 INFO L225 Difference]: With dead ends: 37 [2024-11-14 05:19:01,816 INFO L226 Difference]: Without dead ends: 36 [2024-11-14 05:19:01,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:19:01,817 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 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 [2024-11-14 05:19:01,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:19:01,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-14 05:19:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2024-11-14 05:19:01,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 34 states have internal predecessors, (41), 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) [2024-11-14 05:19:01,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2024-11-14 05:19:01,834 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 7 [2024-11-14 05:19:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:01,834 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2024-11-14 05:19:01,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2024-11-14 05:19:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2024-11-14 05:19:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 05:19:01,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:01,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:19:01,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:19:01,838 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:01,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:01,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1479918762, now seen corresponding path program 1 times [2024-11-14 05:19:01,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:01,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468725784] [2024-11-14 05:19:01,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:01,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:01,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:01,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468725784] [2024-11-14 05:19:01,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468725784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:19:01,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:19:01,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:19:01,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456350091] [2024-11-14 05:19:01,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:19:01,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:19:01,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:01,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:19:01,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:01,942 INFO L87 Difference]: Start difference. First operand 35 states and 41 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) [2024-11-14 05:19:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:01,999 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-14 05:19:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:19:02,000 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 [2024-11-14 05:19:02,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:02,001 INFO L225 Difference]: With dead ends: 40 [2024-11-14 05:19:02,001 INFO L226 Difference]: Without dead ends: 39 [2024-11-14 05:19:02,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:19:02,002 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:02,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 22 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:19:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-14 05:19:02,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 22. [2024-11-14 05:19:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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) [2024-11-14 05:19:02,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2024-11-14 05:19:02,010 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 9 [2024-11-14 05:19:02,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:02,011 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2024-11-14 05:19:02,011 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) [2024-11-14 05:19:02,011 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-11-14 05:19:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:19:02,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:02,012 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-14 05:19:02,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:19:02,012 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:02,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:02,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1281661643, now seen corresponding path program 1 times [2024-11-14 05:19:02,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:02,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893593750] [2024-11-14 05:19:02,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:02,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:02,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:02,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:02,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893593750] [2024-11-14 05:19:02,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893593750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:02,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385127206] [2024-11-14 05:19:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:02,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:02,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:02,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:02,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:19:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:02,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:19:02,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:02,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:02,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385127206] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:02,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [50353100] [2024-11-14 05:19:02,337 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:19:02,338 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:02,341 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:02,348 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:02,348 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:02,681 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:02,947 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '802#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-14 05:19:02,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:19:02,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:02,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-14 05:19:02,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891964811] [2024-11-14 05:19:02,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:19:02,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:19:02,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:02,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:19:02,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:19:02,952 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2024-11-14 05:19:03,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:03,016 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2024-11-14 05:19:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:19:03,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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) Word has length 13 [2024-11-14 05:19:03,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:03,017 INFO L225 Difference]: With dead ends: 53 [2024-11-14 05:19:03,017 INFO L226 Difference]: Without dead ends: 52 [2024-11-14 05:19:03,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:19:03,018 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:03,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 46 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-14 05:19:03,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-14 05:19:03,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 51 states have internal predecessors, (57), 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) [2024-11-14 05:19:03,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2024-11-14 05:19:03,038 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 13 [2024-11-14 05:19:03,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:03,038 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2024-11-14 05:19:03,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 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) [2024-11-14 05:19:03,039 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2024-11-14 05:19:03,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 05:19:03,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:03,042 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1] [2024-11-14 05:19:03,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:19:03,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:03,243 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:03,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:03,244 INFO L85 PathProgramCache]: Analyzing trace with hash -128477082, now seen corresponding path program 2 times [2024-11-14 05:19:03,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:03,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408488328] [2024-11-14 05:19:03,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:03,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:03,473 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:03,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:03,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408488328] [2024-11-14 05:19:03,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408488328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:03,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820791306] [2024-11-14 05:19:03,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:19:03,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:03,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:03,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:03,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:19:03,553 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 05:19:03,553 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:19:03,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:19:03,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:03,656 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:03,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:03,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820791306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:03,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1076514082] [2024-11-14 05:19:03,824 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:19:03,824 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:03,825 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:03,831 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:03,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:03,993 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:04,315 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1125#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-14 05:19:04,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:19:04,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:04,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-14 05:19:04,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296253455] [2024-11-14 05:19:04,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:19:04,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 05:19:04,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:04,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 05:19:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-14 05:19:04,317 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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) [2024-11-14 05:19:04,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:04,440 INFO L93 Difference]: Finished difference Result 113 states and 129 transitions. [2024-11-14 05:19:04,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:19:04,441 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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 31 [2024-11-14 05:19:04,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:04,442 INFO L225 Difference]: With dead ends: 113 [2024-11-14 05:19:04,443 INFO L226 Difference]: Without dead ends: 112 [2024-11-14 05:19:04,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 75 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-14 05:19:04,444 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 101 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:04,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 94 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:04,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-14 05:19:04,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-14 05:19:04,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.1081081081081081) internal successors, (123), 111 states have internal predecessors, (123), 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) [2024-11-14 05:19:04,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2024-11-14 05:19:04,472 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 31 [2024-11-14 05:19:04,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:04,472 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2024-11-14 05:19:04,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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) [2024-11-14 05:19:04,473 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2024-11-14 05:19:04,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 05:19:04,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:04,474 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1] [2024-11-14 05:19:04,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:19:04,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:04,675 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:04,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:04,676 INFO L85 PathProgramCache]: Analyzing trace with hash 505933832, now seen corresponding path program 3 times [2024-11-14 05:19:04,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:04,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675882239] [2024-11-14 05:19:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:04,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:05,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:05,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675882239] [2024-11-14 05:19:05,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675882239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:05,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276767380] [2024-11-14 05:19:05,135 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:19:05,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:05,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:05,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:05,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:19:05,217 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:19:05,217 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:19:05,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 05:19:05,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:05,387 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:05,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:05,849 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:05,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276767380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:05,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1074599306] [2024-11-14 05:19:05,851 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:19:05,855 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:05,855 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:05,856 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:05,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:05,982 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:06,481 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1820#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-14 05:19:06,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:19:06,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:06,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2024-11-14 05:19:06,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618242943] [2024-11-14 05:19:06,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:19:06,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 05:19:06,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:06,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 05:19:06,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=554, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:19:06,491 INFO L87 Difference]: Start difference. First operand 112 states and 123 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 23 states have internal predecessors, (134), 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) [2024-11-14 05:19:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:06,712 INFO L93 Difference]: Finished difference Result 233 states and 267 transitions. [2024-11-14 05:19:06,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 05:19:06,713 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 23 states have internal predecessors, (134), 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 67 [2024-11-14 05:19:06,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:06,714 INFO L225 Difference]: With dead ends: 233 [2024-11-14 05:19:06,714 INFO L226 Difference]: Without dead ends: 232 [2024-11-14 05:19:06,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 171 SyntacticMatches, 11 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=316, Invalid=554, Unknown=0, NotChecked=0, Total=870 [2024-11-14 05:19:06,716 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 381 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:06,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 190 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:19:06,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-14 05:19:06,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-11-14 05:19:06,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.103896103896104) internal successors, (255), 231 states have internal predecessors, (255), 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) [2024-11-14 05:19:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 255 transitions. [2024-11-14 05:19:06,762 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 255 transitions. Word has length 67 [2024-11-14 05:19:06,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:06,764 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 255 transitions. [2024-11-14 05:19:06,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 23 states have internal predecessors, (134), 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) [2024-11-14 05:19:06,764 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 255 transitions. [2024-11-14 05:19:06,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-14 05:19:06,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:06,773 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1, 1] [2024-11-14 05:19:06,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:19:06,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:06,977 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:06,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:06,978 INFO L85 PathProgramCache]: Analyzing trace with hash -337238964, now seen corresponding path program 4 times [2024-11-14 05:19:06,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:06,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342575442] [2024-11-14 05:19:06,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:06,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:08,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:08,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342575442] [2024-11-14 05:19:08,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342575442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:08,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891496216] [2024-11-14 05:19:08,238 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:19:08,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:08,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:08,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:08,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:19:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:08,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 05:19:08,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:08,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:10,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891496216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:10,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1118875107] [2024-11-14 05:19:10,157 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:19:10,157 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:10,158 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:10,158 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:10,158 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:10,241 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:11,130 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3259#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-14 05:19:11,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:19:11,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:11,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2024-11-14 05:19:11,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957325837] [2024-11-14 05:19:11,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:19:11,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-14 05:19:11,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:11,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-14 05:19:11,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1192, Invalid=1670, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 05:19:11,134 INFO L87 Difference]: Start difference. First operand 232 states and 255 transitions. Second operand has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 47 states have internal predecessors, (278), 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) [2024-11-14 05:19:11,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:11,659 INFO L93 Difference]: Finished difference Result 473 states and 543 transitions. [2024-11-14 05:19:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 05:19:11,660 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 47 states have internal predecessors, (278), 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 139 [2024-11-14 05:19:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:11,663 INFO L225 Difference]: With dead ends: 473 [2024-11-14 05:19:11,663 INFO L226 Difference]: Without dead ends: 472 [2024-11-14 05:19:11,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 363 SyntacticMatches, 23 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2064 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1192, Invalid=1670, Unknown=0, NotChecked=0, Total=2862 [2024-11-14 05:19:11,666 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 696 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:11,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 382 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:19:11,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-14 05:19:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-11-14 05:19:11,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.1019108280254777) internal successors, (519), 471 states have internal predecessors, (519), 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) [2024-11-14 05:19:11,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 519 transitions. [2024-11-14 05:19:11,702 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 519 transitions. Word has length 139 [2024-11-14 05:19:11,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:11,703 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 519 transitions. [2024-11-14 05:19:11,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 47 states have internal predecessors, (278), 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) [2024-11-14 05:19:11,703 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 519 transitions. [2024-11-14 05:19:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-14 05:19:11,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:11,718 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 1, 1, 1] [2024-11-14 05:19:11,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:19:11,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 05:19:11,919 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:11,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash -173629228, now seen corresponding path program 5 times [2024-11-14 05:19:11,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:11,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871984814] [2024-11-14 05:19:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:11,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:15,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:15,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871984814] [2024-11-14 05:19:15,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871984814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:15,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926957742] [2024-11-14 05:19:15,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:19:15,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:15,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:15,995 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:16,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:19:16,199 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-14 05:19:16,199 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:19:16,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-14 05:19:16,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:16,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:16,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:21,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926957742] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:21,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [974365838] [2024-11-14 05:19:21,422 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:19:21,423 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:21,423 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:21,423 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:21,423 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:21,508 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:19:24,877 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6186#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-14 05:19:24,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:19:24,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:19:24,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2024-11-14 05:19:24,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744490413] [2024-11-14 05:19:24,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:19:24,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-14 05:19:24,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:19:24,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-14 05:19:24,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4672, Invalid=5630, Unknown=0, NotChecked=0, Total=10302 [2024-11-14 05:19:24,889 INFO L87 Difference]: Start difference. First operand 472 states and 519 transitions. Second operand has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 95 states have internal predecessors, (566), 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) [2024-11-14 05:19:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:19:27,445 INFO L93 Difference]: Finished difference Result 953 states and 1095 transitions. [2024-11-14 05:19:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-14 05:19:27,446 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 95 states have internal predecessors, (566), 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 283 [2024-11-14 05:19:27,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:19:27,451 INFO L225 Difference]: With dead ends: 953 [2024-11-14 05:19:27,451 INFO L226 Difference]: Without dead ends: 952 [2024-11-14 05:19:27,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 747 SyntacticMatches, 47 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7608 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=4672, Invalid=5630, Unknown=0, NotChecked=0, Total=10302 [2024-11-14 05:19:27,455 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 1901 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:19:27,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 766 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:19:27,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-14 05:19:27,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2024-11-14 05:19:27,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 951 states have (on average 1.1009463722397477) internal successors, (1047), 951 states have internal predecessors, (1047), 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) [2024-11-14 05:19:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1047 transitions. [2024-11-14 05:19:27,512 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1047 transitions. Word has length 283 [2024-11-14 05:19:27,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:19:27,513 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1047 transitions. [2024-11-14 05:19:27,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 95 states have internal predecessors, (566), 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) [2024-11-14 05:19:27,514 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1047 transitions. [2024-11-14 05:19:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2024-11-14 05:19:27,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:19:27,530 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 1, 1, 1] [2024-11-14 05:19:27,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:19:27,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 05:19:27,734 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:19:27,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:19:27,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1856498148, now seen corresponding path program 6 times [2024-11-14 05:19:27,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:19:27,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715845583] [2024-11-14 05:19:27,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:19:27,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:19:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:19:37,924 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:37,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:19:37,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715845583] [2024-11-14 05:19:37,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715845583] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:19:37,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53331103] [2024-11-14 05:19:37,924 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:19:37,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:19:37,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:19:37,926 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:19:37,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:19:38,168 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:19:38,168 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:19:38,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-14 05:19:38,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:19:39,165 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:39,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:19:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:19:53,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53331103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:19:53,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1446960203] [2024-11-14 05:19:53,569 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:19:53,570 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:19:53,570 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:19:53,570 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:19:53,570 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:19:53,661 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:20:04,115 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12089#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-14 05:20:04,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:20:04,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:20:04,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2024-11-14 05:20:04,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578578778] [2024-11-14 05:20:04,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:20:04,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-14 05:20:04,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:20:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-14 05:20:04,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18544, Invalid=20462, Unknown=0, NotChecked=0, Total=39006 [2024-11-14 05:20:04,133 INFO L87 Difference]: Start difference. First operand 952 states and 1047 transitions. Second operand has 192 states, 191 states have (on average 5.979057591623037) internal successors, (1142), 191 states have internal predecessors, (1142), 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) [2024-11-14 05:20:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:20:27,591 INFO L93 Difference]: Finished difference Result 1913 states and 2199 transitions. [2024-11-14 05:20:27,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-14 05:20:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.979057591623037) internal successors, (1142), 191 states have internal predecessors, (1142), 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 571 [2024-11-14 05:20:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:20:27,603 INFO L225 Difference]: With dead ends: 1913 [2024-11-14 05:20:27,603 INFO L226 Difference]: Without dead ends: 1912 [2024-11-14 05:20:27,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1515 SyntacticMatches, 95 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29064 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=18544, Invalid=20462, Unknown=0, NotChecked=0, Total=39006 [2024-11-14 05:20:27,610 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 4216 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4216 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:20:27,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4216 Valid, 1534 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:20:27,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2024-11-14 05:20:27,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1912. [2024-11-14 05:20:27,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1912 states, 1911 states have (on average 1.1004709576138147) internal successors, (2103), 1911 states have internal predecessors, (2103), 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) [2024-11-14 05:20:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2103 transitions. [2024-11-14 05:20:27,726 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2103 transitions. Word has length 571 [2024-11-14 05:20:27,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:20:27,728 INFO L471 AbstractCegarLoop]: Abstraction has 1912 states and 2103 transitions. [2024-11-14 05:20:27,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.979057591623037) internal successors, (1142), 191 states have internal predecessors, (1142), 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) [2024-11-14 05:20:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2103 transitions. [2024-11-14 05:20:27,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2024-11-14 05:20:27,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:20:27,793 INFO L215 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 1, 1, 1] [2024-11-14 05:20:27,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 05:20:27,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 05:20:27,997 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:20:27,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:20:27,998 INFO L85 PathProgramCache]: Analyzing trace with hash 975944708, now seen corresponding path program 7 times [2024-11-14 05:20:27,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:20:27,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530831935] [2024-11-14 05:20:27,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:20:27,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:20:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:21:07,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:21:07,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530831935] [2024-11-14 05:21:07,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530831935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:21:07,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577380813] [2024-11-14 05:21:07,197 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:21:07,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:21:07,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:07,201 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:21:07,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:21:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:21:07,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 1916 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-14 05:21:07,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:21:09,558 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:21:09,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:22:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:22:05,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577380813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:22:05,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1338601847] [2024-11-14 05:22:05,327 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2024-11-14 05:22:05,327 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:22:05,328 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:22:05,328 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:22:05,328 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:22:05,393 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:22:39,526 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '23944#(and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 1))' at error location [2024-11-14 05:22:39,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:22:39,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:22:39,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 382 [2024-11-14 05:22:39,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371160761] [2024-11-14 05:22:39,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:22:39,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-11-14 05:22:39,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:39,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-11-14 05:22:39,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73936, Invalid=77774, Unknown=0, NotChecked=0, Total=151710 [2024-11-14 05:22:39,567 INFO L87 Difference]: Start difference. First operand 1912 states and 2103 transitions. Second operand has 384 states, 383 states have (on average 5.989556135770235) internal successors, (2294), 383 states have internal predecessors, (2294), 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) [2024-11-14 05:29:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:29:27,484 INFO L93 Difference]: Finished difference Result 3833 states and 4407 transitions. [2024-11-14 05:29:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2024-11-14 05:29:27,486 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.989556135770235) internal successors, (2294), 383 states have internal predecessors, (2294), 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 1147 [2024-11-14 05:29:27,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:29:27,499 INFO L225 Difference]: With dead ends: 3833 [2024-11-14 05:29:27,499 INFO L226 Difference]: Without dead ends: 3832 [2024-11-14 05:29:27,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3630 GetRequests, 3051 SyntacticMatches, 191 SemanticMatches, 388 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113448 ImplicationChecksByTransitivity, 107.2s TimeCoverageRelationStatistics Valid=73936, Invalid=77774, Unknown=0, NotChecked=0, Total=151710 [2024-11-14 05:29:27,508 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 9841 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9841 SdHoareTripleChecker+Valid, 3070 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:29:27,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9841 Valid, 3070 Invalid, 1157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 05:29:27,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2024-11-14 05:29:27,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3832. [2024-11-14 05:29:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3831 states have (on average 1.100234925606891) internal successors, (4215), 3831 states have internal predecessors, (4215), 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) [2024-11-14 05:29:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 4215 transitions. [2024-11-14 05:29:27,669 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 4215 transitions. Word has length 1147 [2024-11-14 05:29:27,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:29:27,671 INFO L471 AbstractCegarLoop]: Abstraction has 3832 states and 4215 transitions. [2024-11-14 05:29:27,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.989556135770235) internal successors, (2294), 383 states have internal predecessors, (2294), 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) [2024-11-14 05:29:27,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 4215 transitions. [2024-11-14 05:29:27,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2300 [2024-11-14 05:29:27,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:29:27,712 INFO L215 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 382, 382, 1, 1, 1] [2024-11-14 05:29:27,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:29:27,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 05:29:27,912 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-14 05:29:27,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:29:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1396203588, now seen corresponding path program 8 times [2024-11-14 05:29:27,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:29:27,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540740782] [2024-11-14 05:29:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:29:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:29:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 438536 backedges. 0 proven. 438536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:32:09,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:09,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540740782] [2024-11-14 05:32:09,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540740782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:09,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724927048] [2024-11-14 05:32:09,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:32:09,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:09,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:09,446 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:09,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_670f3b3b-d04a-4e08-a253-b9018dff8de7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:32:13,909 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 383 check-sat command(s) [2024-11-14 05:32:13,909 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:32:13,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 3836 conjuncts, 384 conjuncts are in the unsatisfiable core [2024-11-14 05:32:13,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 438536 backedges. 0 proven. 438536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:32:16,612 INFO L311 TraceCheckSpWp]: Computing backward predicates...