./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/ps2-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/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_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-nla/ps2-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/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 32bit --witnessprinter.graph.data.programhash b73e31328980bb314c7579072d8e4a89ec4ca4994cbdfb0690ff58d274b46cfc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:09:55,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:09:55,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:09:55,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:09:55,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:09:55,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:09:55,729 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:09:55,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:09:55,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:09:55,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:09:55,729 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:09:55,729 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:09:55,730 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:09:55,730 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:09:55,730 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:09:55,730 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:09:55,730 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:09:55,730 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:09:55,730 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:09:55,730 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:09:55,731 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:09:55,731 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:09:55,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:09:55,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:09:55,731 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:09:55,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:09:55,732 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:09:55,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:09:55,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:09:55,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:09:55,733 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:09:55,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:09:55,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:09:55,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:09:55,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:09:55,734 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:09:55,734 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:09:55,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:09:55,734 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:09:55,734 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:09:55,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:09:55,734 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_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b73e31328980bb314c7579072d8e4a89ec4ca4994cbdfb0690ff58d274b46cfc [2024-11-14 03:09:56,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:09:56,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:09:56,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:09:56,081 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:09:56,081 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:09:56,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-nla/ps2-both-nt.c Unable to find full path for "g++" [2024-11-14 03:09:57,996 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:09:58,211 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:09:58,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/sv-benchmarks/c/termination-nla/ps2-both-nt.c [2024-11-14 03:09:58,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/data/f45f8bb82/ab5a82a346e94f2098da27ce815f3216/FLAG132b5b772 [2024-11-14 03:09:58,288 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/data/f45f8bb82/ab5a82a346e94f2098da27ce815f3216 [2024-11-14 03:09:58,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:09:58,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:09:58,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:09:58,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:09:58,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:09:58,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79be3bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58, skipping insertion in model container [2024-11-14 03:09:58,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:09:58,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:09:58,529 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:09:58,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:09:58,565 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:09:58,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58 WrapperNode [2024-11-14 03:09:58,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:09:58,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:09:58,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:09:58,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:09:58,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,599 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-14 03:09:58,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:09:58,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:09:58,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:09:58,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:09:58,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:09:58,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:09:58,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:09:58,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:09:58,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (1/1) ... [2024-11-14 03:09:58,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:09:58,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:09:58,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:09:58,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:09:58,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:09:58,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:09:58,791 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:09:58,793 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:09:59,028 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-14 03:09:59,028 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:09:59,067 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:09:59,069 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:09:59,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:09:59 BoogieIcfgContainer [2024-11-14 03:09:59,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:09:59,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:09:59,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:09:59,079 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:09:59,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:09:58" (1/3) ... [2024-11-14 03:09:59,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cddf56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:09:59, skipping insertion in model container [2024-11-14 03:09:59,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:58" (2/3) ... [2024-11-14 03:09:59,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cddf56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:09:59, skipping insertion in model container [2024-11-14 03:09:59,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:09:59" (3/3) ... [2024-11-14 03:09:59,082 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-both-nt.c [2024-11-14 03:09:59,103 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:09:59,104 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG ps2-both-nt.c that has 1 procedures, 33 locations, 1 initial locations, 1 loop locations, and 14 error locations. [2024-11-14 03:09:59,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:09:59,198 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;@6a964dbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:09:59,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-14 03:09:59,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 32 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 03:09:59,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:09:59,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:59,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:09:59,212 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:09:59,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:59,220 INFO L85 PathProgramCache]: Analyzing trace with hash 80084, now seen corresponding path program 1 times [2024-11-14 03:09:59,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:59,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645788445] [2024-11-14 03:09:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:59,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:59,359 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 03:09:59,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:09:59,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645788445] [2024-11-14 03:09:59,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645788445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:59,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:09:59,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:09:59,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869831370] [2024-11-14 03:09:59,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:59,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:09:59,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:09:59,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:09:59,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:09:59,399 INFO L87 Difference]: Start difference. First operand has 33 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 32 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) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 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 03:09:59,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:59,429 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2024-11-14 03:09:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:09:59,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 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 03:09:59,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:59,442 INFO L225 Difference]: With dead ends: 35 [2024-11-14 03:09:59,442 INFO L226 Difference]: Without dead ends: 30 [2024-11-14 03:09:59,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:09:59,451 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:59,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:09:59,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-14 03:09:59,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-14 03:09:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 29 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 03:09:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2024-11-14 03:09:59,502 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 3 [2024-11-14 03:09:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:59,502 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2024-11-14 03:09:59,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 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 03:09:59,504 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2024-11-14 03:09:59,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:09:59,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:59,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:09:59,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:09:59,508 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:09:59,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:59,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2482648, now seen corresponding path program 1 times [2024-11-14 03:09:59,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:59,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030636596] [2024-11-14 03:09:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:09:59,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1939195298] [2024-11-14 03:09:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:59,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:09:59,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:09:59,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:09:59,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:09:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:59,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:09:59,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:59,639 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 03:09:59,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:09:59,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:09:59,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030636596] [2024-11-14 03:09:59,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:09:59,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939195298] [2024-11-14 03:09:59,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939195298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:59,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:09:59,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:09:59,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478146582] [2024-11-14 03:09:59,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:59,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:09:59,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:09:59,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:09:59,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:09:59,648 INFO L87 Difference]: Start difference. First operand 30 states and 30 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 03:09:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:59,746 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2024-11-14 03:09:59,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:09:59,747 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 03:09:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:59,748 INFO L225 Difference]: With dead ends: 51 [2024-11-14 03:09:59,748 INFO L226 Difference]: Without dead ends: 48 [2024-11-14 03:09:59,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 03:09:59,749 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:59,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 25 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:09:59,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-14 03:09:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2024-11-14 03:09:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 43 states have internal predecessors, (52), 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 03:09:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2024-11-14 03:09:59,759 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 4 [2024-11-14 03:09:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:59,759 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2024-11-14 03:09:59,759 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 03:09:59,759 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2024-11-14 03:09:59,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 03:09:59,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:59,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 03:09:59,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:09:59,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:09:59,961 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:09:59,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:59,961 INFO L85 PathProgramCache]: Analyzing trace with hash 76962134, now seen corresponding path program 1 times [2024-11-14 03:09:59,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:59,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310836374] [2024-11-14 03:09:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:59,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:59,997 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 03:09:59,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:09:59,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310836374] [2024-11-14 03:09:59,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310836374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:59,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:09:59,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:09:59,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824783464] [2024-11-14 03:09:59,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:59,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:09:59,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:09:59,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:09:59,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:09:59,998 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:00,078 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-11-14 03:10:00,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:10:00,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 03:10:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:00,080 INFO L225 Difference]: With dead ends: 45 [2024-11-14 03:10:00,081 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 03:10:00,081 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 03:10:00,082 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:00,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 17 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:00,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 03:10:00,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-14 03:10:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:00,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2024-11-14 03:10:00,093 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 5 [2024-11-14 03:10:00,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:00,094 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2024-11-14 03:10:00,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:00,094 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2024-11-14 03:10:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 03:10:00,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:00,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 03:10:00,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:10:00,095 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:00,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:00,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1909141094, now seen corresponding path program 1 times [2024-11-14 03:10:00,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:00,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426592480] [2024-11-14 03:10:00,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:00,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:00,158 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 03:10:00,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:00,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426592480] [2024-11-14 03:10:00,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426592480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:00,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:10:00,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:10:00,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071115076] [2024-11-14 03:10:00,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:00,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:10:00,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:00,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:10:00,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:10:00,162 INFO L87 Difference]: Start difference. First operand 44 states and 51 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 03:10:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:00,236 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2024-11-14 03:10:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:10:00,237 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 03:10:00,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:00,237 INFO L225 Difference]: With dead ends: 51 [2024-11-14 03:10:00,237 INFO L226 Difference]: Without dead ends: 48 [2024-11-14 03:10:00,238 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 03:10:00,239 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:00,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 28 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-14 03:10:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2024-11-14 03:10:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 43 states have internal predecessors, (48), 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 03:10:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2024-11-14 03:10:00,250 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 6 [2024-11-14 03:10:00,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:00,250 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2024-11-14 03:10:00,250 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 03:10:00,250 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2024-11-14 03:10:00,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 03:10:00,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:00,252 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:00,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:10:00,253 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:00,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash -733554340, now seen corresponding path program 1 times [2024-11-14 03:10:00,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:00,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035121204] [2024-11-14 03:10:00,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:00,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:00,360 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 03:10:00,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:00,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035121204] [2024-11-14 03:10:00,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035121204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:00,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:10:00,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:10:00,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133673995] [2024-11-14 03:10:00,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:00,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:10:00,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:10:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:10:00,365 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 03:10:00,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:00,527 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2024-11-14 03:10:00,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:10:00,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-14 03:10:00,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:00,530 INFO L225 Difference]: With dead ends: 45 [2024-11-14 03:10:00,530 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 03:10:00,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:10:00,531 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 31 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:00,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 15 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:00,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 03:10:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-14 03:10:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 43 states have internal predecessors, (47), 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 03:10:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2024-11-14 03:10:00,542 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 8 [2024-11-14 03:10:00,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:00,542 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2024-11-14 03:10:00,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 03:10:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2024-11-14 03:10:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 03:10:00,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:00,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:00,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:10:00,543 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:00,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash -571082466, now seen corresponding path program 1 times [2024-11-14 03:10:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:00,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142444480] [2024-11-14 03:10:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:00,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:00,678 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 03:10:00,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:00,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142444480] [2024-11-14 03:10:00,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142444480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:00,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:10:00,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:10:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541173998] [2024-11-14 03:10:00,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:00,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:10:00,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:00,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:10:00,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:10:00,682 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:00,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:00,841 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2024-11-14 03:10:00,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:10:00,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-14 03:10:00,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:00,842 INFO L225 Difference]: With dead ends: 45 [2024-11-14 03:10:00,842 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 03:10:00,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:10:00,844 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 23 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:00,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 18 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:00,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 03:10:00,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-14 03:10:00,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 43 states have internal predecessors, (46), 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 03:10:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2024-11-14 03:10:00,856 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 10 [2024-11-14 03:10:00,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:00,856 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2024-11-14 03:10:00,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2024-11-14 03:10:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:10:00,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:00,857 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:00,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:10:00,857 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:00,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash 945566016, now seen corresponding path program 1 times [2024-11-14 03:10:00,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:00,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914674123] [2024-11-14 03:10:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:00,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:00,915 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 03:10:00,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:00,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914674123] [2024-11-14 03:10:00,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914674123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:00,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:10:00,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:10:00,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013946165] [2024-11-14 03:10:00,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:00,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:10:00,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:00,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:10:00,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:10:00,918 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 03:10:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:00,933 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2024-11-14 03:10:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:10:00,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2024-11-14 03:10:00,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:00,934 INFO L225 Difference]: With dead ends: 44 [2024-11-14 03:10:00,934 INFO L226 Difference]: Without dead ends: 43 [2024-11-14 03:10:00,935 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 03:10:00,935 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:00,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 25 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:10:00,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-14 03:10:00,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-14 03:10:00,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 42 states have internal predecessors, (44), 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 03:10:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2024-11-14 03:10:00,946 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 12 [2024-11-14 03:10:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:00,947 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2024-11-14 03:10:00,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 03:10:00,947 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2024-11-14 03:10:00,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 03:10:00,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:00,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:00,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:10:00,950 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:00,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:00,950 INFO L85 PathProgramCache]: Analyzing trace with hash -752224511, now seen corresponding path program 1 times [2024-11-14 03:10:00,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:00,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328971785] [2024-11-14 03:10:00,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:00,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:01,028 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 03:10:01,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:01,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328971785] [2024-11-14 03:10:01,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328971785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:01,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:10:01,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:10:01,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956372734] [2024-11-14 03:10:01,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:01,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:10:01,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:01,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:10:01,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:10:01,031 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 03:10:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:01,048 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2024-11-14 03:10:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:10:01,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 03:10:01,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:01,049 INFO L225 Difference]: With dead ends: 44 [2024-11-14 03:10:01,049 INFO L226 Difference]: Without dead ends: 43 [2024-11-14 03:10:01,049 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 03:10:01,050 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:01,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:10:01,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-14 03:10:01,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-14 03:10:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 42 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:01,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2024-11-14 03:10:01,060 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 13 [2024-11-14 03:10:01,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:01,060 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2024-11-14 03:10:01,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 03:10:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2024-11-14 03:10:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 03:10:01,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:01,061 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:01,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:10:01,061 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:01,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:01,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1619009924, now seen corresponding path program 1 times [2024-11-14 03:10:01,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:01,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300407867] [2024-11-14 03:10:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:01,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:01,145 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 03:10:01,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:01,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300407867] [2024-11-14 03:10:01,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300407867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:01,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:10:01,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:10:01,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651096880] [2024-11-14 03:10:01,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:01,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:10:01,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:01,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:10:01,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:10:01,147 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 03:10:01,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:01,233 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2024-11-14 03:10:01,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:10:01,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-14 03:10:01,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:01,235 INFO L225 Difference]: With dead ends: 46 [2024-11-14 03:10:01,235 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 03:10:01,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 03:10:01,236 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:01,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:01,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 03:10:01,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2024-11-14 03:10:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 43 states have internal predecessors, (44), 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 03:10:01,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2024-11-14 03:10:01,247 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 16 [2024-11-14 03:10:01,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:01,247 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2024-11-14 03:10:01,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 03:10:01,247 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2024-11-14 03:10:01,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:10:01,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:01,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:01,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:10:01,248 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:01,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:01,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1350299835, now seen corresponding path program 1 times [2024-11-14 03:10:01,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:01,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417687862] [2024-11-14 03:10:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:01,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:01,312 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 03:10:01,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:01,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417687862] [2024-11-14 03:10:01,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417687862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:01,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:10:01,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:10:01,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428826943] [2024-11-14 03:10:01,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:01,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:10:01,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:10:01,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:10:01,314 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 03:10:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:01,400 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2024-11-14 03:10:01,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:10:01,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2024-11-14 03:10:01,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:01,402 INFO L225 Difference]: With dead ends: 46 [2024-11-14 03:10:01,402 INFO L226 Difference]: Without dead ends: 45 [2024-11-14 03:10:01,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 03:10:01,403 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:01,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:01,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-14 03:10:01,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-14 03:10:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 44 states have internal predecessors, (45), 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 03:10:01,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2024-11-14 03:10:01,414 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 17 [2024-11-14 03:10:01,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:01,414 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2024-11-14 03:10:01,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 03:10:01,415 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2024-11-14 03:10:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:10:01,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:01,416 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:01,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:10:01,416 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:01,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash -118650363, now seen corresponding path program 1 times [2024-11-14 03:10:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:01,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786584625] [2024-11-14 03:10:01,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:01,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:10:01,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413063348] [2024-11-14 03:10:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:01,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:01,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:01,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:01,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:10:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:01,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:10:01,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:01,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:01,582 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:01,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:01,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786584625] [2024-11-14 03:10:01,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:10:01,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413063348] [2024-11-14 03:10:01,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413063348] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:01,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [302919140] [2024-11-14 03:10:01,742 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:01,743 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:01,746 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:01,751 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:01,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:02,386 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:03,134 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1119#(exists ((|v_ULTIMATE.start_main_~y~0#1_40| Int)) (and (<= |ULTIMATE.start_main_~x~0#1| (+ 1073741823 |v_ULTIMATE.start_main_~y~0#1_40|)) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_40| (* |v_ULTIMATE.start_main_~y~0#1_40| |v_ULTIMATE.start_main_~y~0#1_40|))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y~0#1_40| |v_ULTIMATE.start_main_~y~0#1_40|))))' at error location [2024-11-14 03:10:03,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:10:03,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:10:03,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2024-11-14 03:10:03,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811486819] [2024-11-14 03:10:03,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:03,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:10:03,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:03,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:10:03,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:10:03,137 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 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 03:10:03,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:03,292 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2024-11-14 03:10:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:10:03,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 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) Word has length 20 [2024-11-14 03:10:03,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:03,293 INFO L225 Difference]: With dead ends: 87 [2024-11-14 03:10:03,293 INFO L226 Difference]: Without dead ends: 84 [2024-11-14 03:10:03,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:10:03,294 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 61 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:03,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 39 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-14 03:10:03,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2024-11-14 03:10:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.411764705882353) internal successors, (96), 77 states have internal predecessors, (96), 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 03:10:03,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2024-11-14 03:10:03,309 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 20 [2024-11-14 03:10:03,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:03,309 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2024-11-14 03:10:03,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 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 03:10:03,310 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2024-11-14 03:10:03,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:10:03,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:03,313 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:03,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:10:03,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:03,514 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:03,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:03,514 INFO L85 PathProgramCache]: Analyzing trace with hash 616806089, now seen corresponding path program 1 times [2024-11-14 03:10:03,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:03,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535705570] [2024-11-14 03:10:03,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:03,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:03,628 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:03,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:03,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535705570] [2024-11-14 03:10:03,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535705570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:03,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723685883] [2024-11-14 03:10:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:03,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:03,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:03,631 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:03,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:10:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:03,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:10:03,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:03,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:03,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723685883] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:03,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [30376697] [2024-11-14 03:10:03,892 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:03,893 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:03,893 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:03,893 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:03,893 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:04,268 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:04,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [30376697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:10:04,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:10:04,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [3, 3, 3] total 16 [2024-11-14 03:10:04,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87125365] [2024-11-14 03:10:04,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:10:04,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:10:04,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:04,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:10:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:10:04,799 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 03:10:04,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:04,929 INFO L93 Difference]: Finished difference Result 78 states and 96 transitions. [2024-11-14 03:10:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:10:04,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-14 03:10:04,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:04,931 INFO L225 Difference]: With dead ends: 78 [2024-11-14 03:10:04,931 INFO L226 Difference]: Without dead ends: 70 [2024-11-14 03:10:04,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=125, Invalid=217, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:10:04,932 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:04,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:04,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-14 03:10:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-14 03:10:04,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.0588235294117647) internal successors, (72), 69 states have internal predecessors, (72), 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 03:10:04,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2024-11-14 03:10:04,939 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 21 [2024-11-14 03:10:04,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:04,940 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2024-11-14 03:10:04,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 03:10:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2024-11-14 03:10:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 03:10:04,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:04,941 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:10:04,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:10:05,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 03:10:05,142 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:05,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:05,142 INFO L85 PathProgramCache]: Analyzing trace with hash -311938700, now seen corresponding path program 1 times [2024-11-14 03:10:05,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:05,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476341036] [2024-11-14 03:10:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:05,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:05,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:05,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476341036] [2024-11-14 03:10:05,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476341036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:05,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636764468] [2024-11-14 03:10:05,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:05,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:05,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:05,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:05,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:10:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:05,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:10:05,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:05,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:05,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636764468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:05,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [773332075] [2024-11-14 03:10:05,427 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:05,428 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:05,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:05,429 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:05,429 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:05,771 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:06,301 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1777#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:10:06,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:10:06,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:10:06,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-14 03:10:06,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885554757] [2024-11-14 03:10:06,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:06,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:10:06,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:06,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:10:06,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:10:06,302 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 03:10:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:06,332 INFO L93 Difference]: Finished difference Result 80 states and 82 transitions. [2024-11-14 03:10:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:10:06,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 29 [2024-11-14 03:10:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:06,333 INFO L225 Difference]: With dead ends: 80 [2024-11-14 03:10:06,333 INFO L226 Difference]: Without dead ends: 79 [2024-11-14 03:10:06,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 67 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:10:06,334 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:06,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 75 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:10:06,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-14 03:10:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-14 03:10:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 1.025974025974026) internal successors, (79), 78 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2024-11-14 03:10:06,346 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 29 [2024-11-14 03:10:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:06,346 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2024-11-14 03:10:06,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 03:10:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2024-11-14 03:10:06,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 03:10:06,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:06,348 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-14 03:10:06,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:10:06,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:06,549 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:06,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash -514021748, now seen corresponding path program 2 times [2024-11-14 03:10:06,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:06,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265956059] [2024-11-14 03:10:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:10:06,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922227469] [2024-11-14 03:10:06,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:10:06,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:06,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:06,594 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:06,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:10:06,673 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:10:06,673 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:10:06,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:10:06,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:06,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:07,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:07,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265956059] [2024-11-14 03:10:07,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:10:07,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922227469] [2024-11-14 03:10:07,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922227469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:07,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1975705275] [2024-11-14 03:10:07,142 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:07,142 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:07,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:07,143 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:07,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:07,396 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:08,983 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2369#(exists ((|v_ULTIMATE.start_main_~y~0#1_64| Int)) (and (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y~0#1_64| |v_ULTIMATE.start_main_~y~0#1_64|)) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_64| (* |v_ULTIMATE.start_main_~y~0#1_64| |v_ULTIMATE.start_main_~y~0#1_64|))) (<= |ULTIMATE.start_main_~x~0#1| (+ 1073741823 |v_ULTIMATE.start_main_~y~0#1_64|))))' at error location [2024-11-14 03:10:08,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:10:08,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:10:08,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2024-11-14 03:10:08,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533219013] [2024-11-14 03:10:08,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:08,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:10:08,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:08,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:10:08,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:10:08,985 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 12 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 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 03:10:09,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:09,431 INFO L93 Difference]: Finished difference Result 172 states and 177 transitions. [2024-11-14 03:10:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:10:09,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 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 68 [2024-11-14 03:10:09,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:09,433 INFO L225 Difference]: With dead ends: 172 [2024-11-14 03:10:09,433 INFO L226 Difference]: Without dead ends: 171 [2024-11-14 03:10:09,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 166 SyntacticMatches, 17 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:10:09,435 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 84 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:09,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 157 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:10:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-14 03:10:09,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 166. [2024-11-14 03:10:09,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 164 states have (on average 1.0426829268292683) internal successors, (171), 165 states have internal predecessors, (171), 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 03:10:09,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 171 transitions. [2024-11-14 03:10:09,450 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 171 transitions. Word has length 68 [2024-11-14 03:10:09,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:09,450 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 171 transitions. [2024-11-14 03:10:09,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 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 03:10:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 171 transitions. [2024-11-14 03:10:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:10:09,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:09,455 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1] [2024-11-14 03:10:09,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 03:10:09,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 03:10:09,656 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:09,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:09,657 INFO L85 PathProgramCache]: Analyzing trace with hash -319603507, now seen corresponding path program 2 times [2024-11-14 03:10:09,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:09,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774686927] [2024-11-14 03:10:09,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:09,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:09,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:09,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774686927] [2024-11-14 03:10:09,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774686927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:09,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470831299] [2024-11-14 03:10:09,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:10:09,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:09,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:09,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:09,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:10:09,990 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:10:09,990 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:10:09,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:10:09,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:10,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:10,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470831299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:10,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [629685520] [2024-11-14 03:10:10,316 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:10,316 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:10,316 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:10,316 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:10,316 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:10,531 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:11,262 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3214#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:10:11,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:10:11,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:10:11,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-14 03:10:11,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428259686] [2024-11-14 03:10:11,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:11,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:10:11,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:10:11,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:10:11,264 INFO L87 Difference]: Start difference. First operand 166 states and 171 transitions. Second operand has 12 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:11,320 INFO L93 Difference]: Finished difference Result 176 states and 181 transitions. [2024-11-14 03:10:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:10:11,321 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-14 03:10:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:11,322 INFO L225 Difference]: With dead ends: 176 [2024-11-14 03:10:11,322 INFO L226 Difference]: Without dead ends: 175 [2024-11-14 03:10:11,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 196 SyntacticMatches, 19 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:10:11,323 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:11,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 159 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:10:11,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-14 03:10:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-14 03:10:11,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 173 states have (on average 1.0115606936416186) internal successors, (175), 174 states have internal predecessors, (175), 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 03:10:11,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 175 transitions. [2024-11-14 03:10:11,342 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 175 transitions. Word has length 77 [2024-11-14 03:10:11,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:11,343 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 175 transitions. [2024-11-14 03:10:11,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.0) internal successors, (154), 11 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:10:11,343 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 175 transitions. [2024-11-14 03:10:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-14 03:10:11,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:11,348 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-11-14 03:10:11,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:10:11,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 03:10:11,552 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:11,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:11,553 INFO L85 PathProgramCache]: Analyzing trace with hash 99582362, now seen corresponding path program 3 times [2024-11-14 03:10:11,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:11,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914328451] [2024-11-14 03:10:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:11,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:10:11,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071782437] [2024-11-14 03:10:11,604 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:10:11,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:11,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:11,606 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:11,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:10:11,708 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:10:11,708 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:10:11,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 03:10:11,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:12,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:12,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:12,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914328451] [2024-11-14 03:10:12,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:10:12,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071782437] [2024-11-14 03:10:12,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071782437] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:12,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1485753506] [2024-11-14 03:10:12,780 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:12,781 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:12,781 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:12,781 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:12,781 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:12,979 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:15,551 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4598#(exists ((|v_ULTIMATE.start_main_~y~0#1_97| Int)) (and (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_97| (* |v_ULTIMATE.start_main_~y~0#1_97| |v_ULTIMATE.start_main_~y~0#1_97|))) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| (+ 1073741823 |v_ULTIMATE.start_main_~y~0#1_97|)) (<= 2147483648 (* |v_ULTIMATE.start_main_~y~0#1_97| |v_ULTIMATE.start_main_~y~0#1_97|))))' at error location [2024-11-14 03:10:15,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:10:15,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:10:15,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2024-11-14 03:10:15,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205553447] [2024-11-14 03:10:15,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:15,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 03:10:15,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:15,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 03:10:15,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:10:15,554 INFO L87 Difference]: Start difference. First operand 175 states and 175 transitions. Second operand has 24 states, 23 states have (on average 14.26086956521739) internal successors, (328), 23 states have internal predecessors, (328), 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 03:10:17,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:17,170 INFO L93 Difference]: Finished difference Result 370 states and 381 transitions. [2024-11-14 03:10:17,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:10:17,171 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.26086956521739) internal successors, (328), 23 states have internal predecessors, (328), 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 164 [2024-11-14 03:10:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:17,174 INFO L225 Difference]: With dead ends: 370 [2024-11-14 03:10:17,174 INFO L226 Difference]: Without dead ends: 369 [2024-11-14 03:10:17,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 418 SyntacticMatches, 41 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=446, Invalid=1360, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 03:10:17,177 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 219 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:17,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 679 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:10:17,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-14 03:10:17,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 358. [2024-11-14 03:10:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 356 states have (on average 1.0365168539325842) internal successors, (369), 357 states have internal predecessors, (369), 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 03:10:17,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 369 transitions. [2024-11-14 03:10:17,194 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 369 transitions. Word has length 164 [2024-11-14 03:10:17,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:17,195 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 369 transitions. [2024-11-14 03:10:17,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.26086956521739) internal successors, (328), 23 states have internal predecessors, (328), 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 03:10:17,195 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 369 transitions. [2024-11-14 03:10:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-14 03:10:17,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:17,199 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1] [2024-11-14 03:10:17,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 03:10:17,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-14 03:10:17,402 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:17,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash -60100225, now seen corresponding path program 3 times [2024-11-14 03:10:17,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:17,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623370630] [2024-11-14 03:10:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:17,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:17,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623370630] [2024-11-14 03:10:17,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623370630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:17,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643623592] [2024-11-14 03:10:17,884 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:10:17,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:17,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:17,886 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:17,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:10:17,964 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:10:17,964 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:10:17,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:10:17,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:18,222 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:18,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643623592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:18,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1060122269] [2024-11-14 03:10:18,725 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:18,725 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:18,725 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:18,725 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:18,726 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:18,908 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:20,289 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6457#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:10:20,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:10:20,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:10:20,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2024-11-14 03:10:20,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375671125] [2024-11-14 03:10:20,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:20,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 03:10:20,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:20,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 03:10:20,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=740, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:10:20,293 INFO L87 Difference]: Start difference. First operand 358 states and 369 transitions. Second operand has 24 states, 23 states have (on average 15.043478260869565) internal successors, (346), 23 states have internal predecessors, (346), 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 03:10:20,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:20,415 INFO L93 Difference]: Finished difference Result 368 states and 379 transitions. [2024-11-14 03:10:20,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:10:20,415 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 15.043478260869565) internal successors, (346), 23 states have internal predecessors, (346), 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 173 [2024-11-14 03:10:20,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:20,417 INFO L225 Difference]: With dead ends: 368 [2024-11-14 03:10:20,417 INFO L226 Difference]: Without dead ends: 367 [2024-11-14 03:10:20,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 454 SyntacticMatches, 43 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1832 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=316, Invalid=740, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:10:20,418 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:20,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 328 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:20,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-14 03:10:20,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2024-11-14 03:10:20,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 365 states have (on average 1.0054794520547945) internal successors, (367), 366 states have internal predecessors, (367), 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 03:10:20,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 367 transitions. [2024-11-14 03:10:20,446 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 367 transitions. Word has length 173 [2024-11-14 03:10:20,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:20,446 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 367 transitions. [2024-11-14 03:10:20,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 15.043478260869565) internal successors, (346), 23 states have internal predecessors, (346), 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 03:10:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 367 transitions. [2024-11-14 03:10:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-14 03:10:20,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:20,453 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2024-11-14 03:10:20,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:10:20,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 03:10:20,658 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:20,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:20,659 INFO L85 PathProgramCache]: Analyzing trace with hash -612909130, now seen corresponding path program 4 times [2024-11-14 03:10:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:20,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119070722] [2024-11-14 03:10:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:10:20,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582705726] [2024-11-14 03:10:20,784 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:10:20,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:20,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:20,787 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:20,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:10:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:20,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-14 03:10:20,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:21,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3762 backedges. 0 proven. 3762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:21,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3762 backedges. 0 proven. 3762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:23,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:23,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119070722] [2024-11-14 03:10:23,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:10:23,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582705726] [2024-11-14 03:10:23,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582705726] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:23,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [543209675] [2024-11-14 03:10:23,566 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:23,566 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:23,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:23,567 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:23,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:23,756 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:32,430 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9425#(exists ((|v_ULTIMATE.start_main_~y~0#1_160| Int)) (and (<= |ULTIMATE.start_main_~x~0#1| (+ |v_ULTIMATE.start_main_~y~0#1_160| 1073741823)) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2147483647) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_160| (* |v_ULTIMATE.start_main_~y~0#1_160| |v_ULTIMATE.start_main_~y~0#1_160|))) (<= 2147483648 (* |v_ULTIMATE.start_main_~y~0#1_160| |v_ULTIMATE.start_main_~y~0#1_160|))))' at error location [2024-11-14 03:10:32,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:10:32,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:10:32,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 46 [2024-11-14 03:10:32,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452068804] [2024-11-14 03:10:32,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:32,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-14 03:10:32,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:32,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-14 03:10:32,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=662, Invalid=2530, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 03:10:32,435 INFO L87 Difference]: Start difference. First operand 367 states and 367 transitions. Second operand has 48 states, 47 states have (on average 15.148936170212766) internal successors, (712), 47 states have internal predecessors, (712), 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 03:10:37,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:37,762 INFO L93 Difference]: Finished difference Result 766 states and 789 transitions. [2024-11-14 03:10:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 03:10:37,763 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 15.148936170212766) internal successors, (712), 47 states have internal predecessors, (712), 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 356 [2024-11-14 03:10:37,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:37,766 INFO L225 Difference]: With dead ends: 766 [2024-11-14 03:10:37,766 INFO L226 Difference]: Without dead ends: 765 [2024-11-14 03:10:37,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1088 GetRequests, 922 SyntacticMatches, 89 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3074 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=1718, Invalid=4444, Unknown=0, NotChecked=0, Total=6162 [2024-11-14 03:10:37,769 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 574 mSDsluCounter, 2686 mSDsCounter, 0 mSdLazyCounter, 6066 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 6068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:37,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 2803 Invalid, 6068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6066 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 03:10:37,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-14 03:10:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 742. [2024-11-14 03:10:37,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 740 states have (on average 1.0337837837837838) internal successors, (765), 741 states have internal predecessors, (765), 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 03:10:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 765 transitions. [2024-11-14 03:10:37,812 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 765 transitions. Word has length 356 [2024-11-14 03:10:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:37,813 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 765 transitions. [2024-11-14 03:10:37,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 15.148936170212766) internal successors, (712), 47 states have internal predecessors, (712), 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 03:10:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 765 transitions. [2024-11-14 03:10:37,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-14 03:10:37,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:37,819 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1] [2024-11-14 03:10:37,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 03:10:38,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 03:10:38,023 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:38,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:38,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1632686819, now seen corresponding path program 4 times [2024-11-14 03:10:38,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:38,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399849669] [2024-11-14 03:10:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:38,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 3960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:39,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:39,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399849669] [2024-11-14 03:10:39,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399849669] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:39,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657725037] [2024-11-14 03:10:39,439 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:10:39,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:39,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:39,442 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:39,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:10:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:39,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 03:10:39,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:40,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 3960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:40,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:41,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 3960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:41,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657725037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:41,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1104412037] [2024-11-14 03:10:41,309 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:41,309 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:41,309 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:41,310 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:41,310 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:41,466 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:10:44,714 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13312#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:10:44,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:10:44,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:10:44,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2024-11-14 03:10:44,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476364129] [2024-11-14 03:10:44,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:44,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-14 03:10:44,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:10:44,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-14 03:10:44,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1168, Invalid=2024, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 03:10:44,718 INFO L87 Difference]: Start difference. First operand 742 states and 765 transitions. Second operand has 48 states, 47 states have (on average 15.53191489361702) internal successors, (730), 47 states have internal predecessors, (730), 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 03:10:44,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:44,951 INFO L93 Difference]: Finished difference Result 752 states and 775 transitions. [2024-11-14 03:10:44,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 03:10:44,952 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 15.53191489361702) internal successors, (730), 47 states have internal predecessors, (730), 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 365 [2024-11-14 03:10:44,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:44,955 INFO L225 Difference]: With dead ends: 752 [2024-11-14 03:10:44,955 INFO L226 Difference]: Without dead ends: 751 [2024-11-14 03:10:44,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1116 GetRequests, 970 SyntacticMatches, 91 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7172 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1168, Invalid=2024, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 03:10:44,958 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:44,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 665 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:10:44,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-14 03:10:44,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2024-11-14 03:10:44,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 749 states have (on average 1.0026702269692924) internal successors, (751), 750 states have internal predecessors, (751), 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 03:10:44,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 751 transitions. [2024-11-14 03:10:44,992 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 751 transitions. Word has length 365 [2024-11-14 03:10:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:44,993 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 751 transitions. [2024-11-14 03:10:44,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 15.53191489361702) internal successors, (730), 47 states have internal predecessors, (730), 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 03:10:44,993 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 751 transitions. [2024-11-14 03:10:44,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2024-11-14 03:10:44,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:44,998 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1] [2024-11-14 03:10:45,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-14 03:10:45,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:45,199 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:10:45,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:45,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1687313390, now seen corresponding path program 5 times [2024-11-14 03:10:45,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:10:45,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177956853] [2024-11-14 03:10:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:45,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:10:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:10:45,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681072000] [2024-11-14 03:10:45,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:10:45,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:45,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:45,854 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:45,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:10:50,827 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-14 03:10:50,828 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:10:50,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-14 03:10:50,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 0 proven. 16698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:52,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:57,981 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 0 proven. 16698 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:10:57,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:10:57,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177956853] [2024-11-14 03:10:57,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:10:57,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681072000] [2024-11-14 03:10:57,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681072000] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:10:57,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1964822151] [2024-11-14 03:10:57,983 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:10:57,984 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:10:57,984 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:10:57,984 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:10:57,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:58,108 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:11:27,091 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19448#(exists ((|v_ULTIMATE.start_main_~y~0#1_283| Int)) (and (<= |ULTIMATE.start_main_~x~0#1| (+ |v_ULTIMATE.start_main_~y~0#1_283| 1073741823)) (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= 2147483648 (* |v_ULTIMATE.start_main_~y~0#1_283| |v_ULTIMATE.start_main_~y~0#1_283|)) (<= |ULTIMATE.start_main_~c~0#1| 2147483647) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ (* |v_ULTIMATE.start_main_~y~0#1_283| |v_ULTIMATE.start_main_~y~0#1_283|) |v_ULTIMATE.start_main_~y~0#1_283|))))' at error location [2024-11-14 03:11:27,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:11:27,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:11:27,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 94 [2024-11-14 03:11:27,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812823931] [2024-11-14 03:11:27,092 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:11:27,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-14 03:11:27,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:11:27,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-14 03:11:27,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2438, Invalid=8482, Unknown=0, NotChecked=0, Total=10920 [2024-11-14 03:11:27,097 INFO L87 Difference]: Start difference. First operand 751 states and 751 transitions. Second operand has 96 states, 95 states have (on average 15.578947368421053) internal successors, (1480), 95 states have internal predecessors, (1480), 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 03:11:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:51,884 INFO L93 Difference]: Finished difference Result 1558 states and 1605 transitions. [2024-11-14 03:11:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-14 03:11:51,886 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 15.578947368421053) internal successors, (1480), 95 states have internal predecessors, (1480), 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 740 [2024-11-14 03:11:51,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:51,891 INFO L225 Difference]: With dead ends: 1558 [2024-11-14 03:11:51,891 INFO L226 Difference]: Without dead ends: 1557 [2024-11-14 03:11:51,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2264 GetRequests, 1930 SyntacticMatches, 185 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11390 ImplicationChecksByTransitivity, 49.3s TimeCoverageRelationStatistics Valid=6854, Invalid=15796, Unknown=0, NotChecked=0, Total=22650 [2024-11-14 03:11:51,896 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 1714 mSDsluCounter, 11134 mSDsCounter, 0 mSdLazyCounter, 24810 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 11371 SdHoareTripleChecker+Invalid, 24812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:51,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 11371 Invalid, 24812 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 24810 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 03:11:51,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2024-11-14 03:11:51,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1510. [2024-11-14 03:11:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1508 states have (on average 1.0324933687002653) internal successors, (1557), 1509 states have internal predecessors, (1557), 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 03:11:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 1557 transitions. [2024-11-14 03:11:51,957 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 1557 transitions. Word has length 740 [2024-11-14 03:11:51,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:51,958 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 1557 transitions. [2024-11-14 03:11:51,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 15.578947368421053) internal successors, (1480), 95 states have internal predecessors, (1480), 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 03:11:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 1557 transitions. [2024-11-14 03:11:51,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2024-11-14 03:11:51,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:51,965 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 1, 1] [2024-11-14 03:11:51,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:11:52,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:11:52,166 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:11:52,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:52,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1502186069, now seen corresponding path program 5 times [2024-11-14 03:11:52,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:11:52,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737405993] [2024-11-14 03:11:52,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:52,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:11:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:56,454 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 17112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:11:56,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:11:56,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737405993] [2024-11-14 03:11:56,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737405993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:11:56,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726608473] [2024-11-14 03:11:56,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:11:56,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:11:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:11:56,462 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:11:56,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:11:56,868 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-14 03:11:56,868 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:11:56,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-14 03:11:56,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:57,878 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 17112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:11:57,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 17112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:12:01,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726608473] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:01,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1306427613] [2024-11-14 03:12:01,632 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:12:01,632 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:12:01,632 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:12:01,632 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:12:01,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:12:01,797 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:12:11,959 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27391#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:12:11,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:12:11,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:12:11,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2024-11-14 03:12:11,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813090066] [2024-11-14 03:12:11,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:12:11,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-14 03:12:11,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:12:11,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-14 03:12:11,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4600, Invalid=6320, Unknown=0, NotChecked=0, Total=10920 [2024-11-14 03:12:11,967 INFO L87 Difference]: Start difference. First operand 1510 states and 1557 transitions. Second operand has 96 states, 95 states have (on average 15.76842105263158) internal successors, (1498), 95 states have internal predecessors, (1498), 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 03:12:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:12,658 INFO L93 Difference]: Finished difference Result 1520 states and 1567 transitions. [2024-11-14 03:12:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-14 03:12:12,660 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 15.76842105263158) internal successors, (1498), 95 states have internal predecessors, (1498), 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 749 [2024-11-14 03:12:12,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:12,665 INFO L225 Difference]: With dead ends: 1520 [2024-11-14 03:12:12,665 INFO L226 Difference]: Without dead ends: 1519 [2024-11-14 03:12:12,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2292 GetRequests, 2002 SyntacticMatches, 187 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28220 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=4600, Invalid=6320, Unknown=0, NotChecked=0, Total=10920 [2024-11-14 03:12:12,669 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:12,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1335 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:12:12,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2024-11-14 03:12:12,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1519. [2024-11-14 03:12:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1517 states have (on average 1.001318391562294) internal successors, (1519), 1518 states have internal predecessors, (1519), 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 03:12:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1519 transitions. [2024-11-14 03:12:12,733 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1519 transitions. Word has length 749 [2024-11-14 03:12:12,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:12,734 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 1519 transitions. [2024-11-14 03:12:12,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 15.76842105263158) internal successors, (1498), 95 states have internal predecessors, (1498), 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 03:12:12,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1519 transitions. [2024-11-14 03:12:12,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1509 [2024-11-14 03:12:12,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:12,754 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1] [2024-11-14 03:12:12,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-14 03:12:12,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:12,954 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:12:12,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:12,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1391465566, now seen corresponding path program 6 times [2024-11-14 03:12:12,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:12,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017926611] [2024-11-14 03:12:12,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:12,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:12:17,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925246970] [2024-11-14 03:12:17,183 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:12:17,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:17,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:12:17,185 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:12:17,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:12:17,691 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:12:17,692 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:12:17,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 2175 conjuncts, 191 conjuncts are in the unsatisfiable core [2024-11-14 03:12:17,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 70218 backedges. 0 proven. 70218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:12:23,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:42,911 INFO L134 CoverageAnalysis]: Checked inductivity of 70218 backedges. 0 proven. 70218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:12:42,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:42,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017926611] [2024-11-14 03:12:42,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:12:42,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925246970] [2024-11-14 03:12:42,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925246970] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:42,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [684087614] [2024-11-14 03:12:42,913 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:12:42,913 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:12:42,913 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:12:42,913 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:12:42,913 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:12:43,027 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:14:34,793 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '39863#(exists ((|v_ULTIMATE.start_main_~y~0#1_526| Int)) (and (<= 1 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~c~0#1| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~y~0#1_526| |v_ULTIMATE.start_main_~y~0#1_526|)) (<= |ULTIMATE.start_main_~x~0#1| (+ |v_ULTIMATE.start_main_~y~0#1_526| 1073741823)) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |v_ULTIMATE.start_main_~y~0#1_526| (* |v_ULTIMATE.start_main_~y~0#1_526| |v_ULTIMATE.start_main_~y~0#1_526|)))))' at error location [2024-11-14 03:14:34,794 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:14:34,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:14:34,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 190 [2024-11-14 03:14:34,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168537646] [2024-11-14 03:14:34,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:14:34,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-14 03:14:34,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:14:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-14 03:14:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9446, Invalid=30754, Unknown=0, NotChecked=0, Total=40200 [2024-11-14 03:14:34,806 INFO L87 Difference]: Start difference. First operand 1519 states and 1519 transitions. Second operand has 192 states, 191 states have (on average 15.790575916230367) internal successors, (3016), 191 states have internal predecessors, (3016), 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 03:17:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:07,247 INFO L93 Difference]: Finished difference Result 3142 states and 3237 transitions. [2024-11-14 03:17:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-14 03:17:07,249 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 15.790575916230367) internal successors, (3016), 191 states have internal predecessors, (3016), 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 1508 [2024-11-14 03:17:07,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:07,259 INFO L225 Difference]: With dead ends: 3142 [2024-11-14 03:17:07,259 INFO L226 Difference]: Without dead ends: 3141 [2024-11-14 03:17:07,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4616 GetRequests, 3946 SyntacticMatches, 377 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43574 ImplicationChecksByTransitivity, 245.4s TimeCoverageRelationStatistics Valid=27494, Invalid=59236, Unknown=0, NotChecked=0, Total=86730 [2024-11-14 03:17:07,271 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 5623 mSDsluCounter, 45310 mSDsCounter, 0 mSdLazyCounter, 100318 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5623 SdHoareTripleChecker+Valid, 45787 SdHoareTripleChecker+Invalid, 100320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:07,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5623 Valid, 45787 Invalid, 100320 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2 Valid, 100318 Invalid, 0 Unknown, 0 Unchecked, 32.6s Time] [2024-11-14 03:17:07,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2024-11-14 03:17:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 3046. [2024-11-14 03:17:07,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3044 states have (on average 1.0318659658344285) internal successors, (3141), 3045 states have internal predecessors, (3141), 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 03:17:07,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 3141 transitions. [2024-11-14 03:17:07,392 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 3141 transitions. Word has length 1508 [2024-11-14 03:17:07,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:07,394 INFO L471 AbstractCegarLoop]: Abstraction has 3046 states and 3141 transitions. [2024-11-14 03:17:07,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 15.790575916230367) internal successors, (3016), 191 states have internal predecessors, (3016), 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 03:17:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 3141 transitions. [2024-11-14 03:17:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1518 [2024-11-14 03:17:07,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:07,415 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 94, 94, 94, 94, 94, 1, 1] [2024-11-14 03:17:07,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:17:07,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-14 03:17:07,616 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:17:07,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:07,616 INFO L85 PathProgramCache]: Analyzing trace with hash 975780667, now seen corresponding path program 6 times [2024-11-14 03:17:07,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:17:07,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620014744] [2024-11-14 03:17:07,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:07,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:17:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 71064 backedges. 0 proven. 71064 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:17:25,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:17:25,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620014744] [2024-11-14 03:17:25,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620014744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:25,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305737488] [2024-11-14 03:17:25,818 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:17:25,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:25,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:17:25,820 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:17:25,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:17:26,193 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:17:26,193 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:17:26,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-14 03:17:26,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 71064 backedges. 0 proven. 71064 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:17:27,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:44,568 INFO L134 CoverageAnalysis]: Checked inductivity of 71064 backedges. 0 proven. 71064 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:17:44,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305737488] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:17:44,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [862323625] [2024-11-14 03:17:44,570 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:17:44,570 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:17:44,570 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:17:44,570 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:17:44,570 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:17:44,696 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:18:23,499 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '55918#(and (<= |ULTIMATE.start_main_~x~0#1| 1073741823) (<= 0 |ULTIMATE.start_main_~y~0#1|) (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:18:23,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:18:23,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:18:23,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 190 [2024-11-14 03:18:23,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179455280] [2024-11-14 03:18:23,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:18:23,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-14 03:18:23,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:18:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-14 03:18:23,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18376, Invalid=21824, Unknown=0, NotChecked=0, Total=40200 [2024-11-14 03:18:23,513 INFO L87 Difference]: Start difference. First operand 3046 states and 3141 transitions. Second operand has 192 states, 191 states have (on average 15.884816753926701) internal successors, (3034), 191 states have internal predecessors, (3034), 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 03:18:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:18:26,994 INFO L93 Difference]: Finished difference Result 3056 states and 3151 transitions. [2024-11-14 03:18:26,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-14 03:18:26,995 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 15.884816753926701) internal successors, (3034), 191 states have internal predecessors, (3034), 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 1517 [2024-11-14 03:18:26,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:18:27,004 INFO L225 Difference]: With dead ends: 3056 [2024-11-14 03:18:27,004 INFO L226 Difference]: Without dead ends: 3055 [2024-11-14 03:18:27,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4644 GetRequests, 4066 SyntacticMatches, 379 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111788 ImplicationChecksByTransitivity, 57.5s TimeCoverageRelationStatistics Valid=18376, Invalid=21824, Unknown=0, NotChecked=0, Total=40200 [2024-11-14 03:18:27,008 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:18:27,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2683 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:18:27,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2024-11-14 03:18:27,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 3055. [2024-11-14 03:18:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3055 states, 3053 states have (on average 1.0006550933508025) internal successors, (3055), 3054 states have internal predecessors, (3055), 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 03:18:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3055 states to 3055 states and 3055 transitions. [2024-11-14 03:18:27,112 INFO L78 Accepts]: Start accepts. Automaton has 3055 states and 3055 transitions. Word has length 1517 [2024-11-14 03:18:27,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:18:27,114 INFO L471 AbstractCegarLoop]: Abstraction has 3055 states and 3055 transitions. [2024-11-14 03:18:27,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 15.884816753926701) internal successors, (3034), 191 states have internal predecessors, (3034), 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 03:18:27,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3055 states and 3055 transitions. [2024-11-14 03:18:27,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3045 [2024-11-14 03:18:27,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:18:27,179 INFO L215 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 1, 1] [2024-11-14 03:18:27,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:18:27,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-14 03:18:27,380 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-14 03:18:27,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:18:27,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1068661442, now seen corresponding path program 7 times [2024-11-14 03:18:27,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:18:27,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228193942] [2024-11-14 03:18:27,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:18:27,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:19:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:19:10,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612715212] [2024-11-14 03:19:10,368 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:19:10,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:19:10,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:19:10,370 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:19:10,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef8ef731-fedd-4a51-af28-3f53d5bfa83e/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 03:19:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:11,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 4383 conjuncts, 383 conjuncts are in the unsatisfiable core [2024-11-14 03:19:11,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:19:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 287850 backedges. 0 proven. 287850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:19:34,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 287850 backedges. 0 proven. 287850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:21:00,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:21:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228193942] [2024-11-14 03:21:00,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:21:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612715212] [2024-11-14 03:21:00,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612715212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:21:00,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1849759405] [2024-11-14 03:21:00,457 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-14 03:21:00,457 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:21:00,457 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:21:00,457 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:21:00,457 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:21:00,628 INFO L180 IcfgInterpreter]: Interpretation finished