./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-nla/cohencu5-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_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/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_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-nla/cohencu5-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/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_a7937c62-47bb-4314-808d-ecac17edf6f9/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 c93857281b5ec9fe14e30b99b222d261f13b497e3b825785e60f15b99c5a5215 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:23:06,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:23:06,757 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:23:06,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:23:06,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:23:06,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:23:06,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:23:06,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:23:06,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:23:06,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:23:06,785 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:23:06,785 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:23:06,786 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:23:06,786 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:23:06,786 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:23:06,786 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:23:06,786 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:23:06,786 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:23:06,786 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:23:06,787 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:23:06,787 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:23:06,787 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:23:06,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:23:06,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:23:06,788 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:23:06,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:23:06,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:23:06,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:23:06,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:23:06,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:23:06,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:23:06,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:23:06,789 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:23:06,789 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:23:06,789 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:23:06,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:23:06,789 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:23:06,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:23:06,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:23:06,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:23:06,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:23:06,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:23:06,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:23:06,790 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:23:06,790 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:23:06,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:23:06,791 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:23:06,791 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:23:06,791 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:23:06,791 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_a7937c62-47bb-4314-808d-ecac17edf6f9/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 -> c93857281b5ec9fe14e30b99b222d261f13b497e3b825785e60f15b99c5a5215 [2024-11-14 03:23:07,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:23:07,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:23:07,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:23:07,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:23:07,080 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:23:07,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-nla/cohencu5-both-nt.c Unable to find full path for "g++" [2024-11-14 03:23:09,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:23:09,407 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:23:09,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/sv-benchmarks/c/termination-nla/cohencu5-both-nt.c [2024-11-14 03:23:09,415 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/data/74b7be359/30cf7d5a665047b2b65380242969bd7d/FLAGd9ca799a7 [2024-11-14 03:23:09,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/data/74b7be359/30cf7d5a665047b2b65380242969bd7d [2024-11-14 03:23:09,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:23:09,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:23:09,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:23:09,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:23:09,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:23:09,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60435a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09, skipping insertion in model container [2024-11-14 03:23:09,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:23:09,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:23:09,883 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:23:09,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:23:09,914 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:23:09,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09 WrapperNode [2024-11-14 03:23:09,915 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:23:09,916 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:23:09,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:23:09,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:23:09,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,946 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2024-11-14 03:23:09,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:23:09,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:23:09,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:23:09,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:23:09,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,960 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,967 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:23:09,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:23:09,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:23:09,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:23:09,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (1/1) ... [2024-11-14 03:23:09,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:23:10,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:10,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:23:10,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:23:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:23:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:23:10,132 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:23:10,135 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:23:10,440 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-14 03:23:10,441 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:23:10,481 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:23:10,483 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:23:10,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:10 BoogieIcfgContainer [2024-11-14 03:23:10,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:23:10,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:23:10,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:23:10,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:23:10,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:23:09" (1/3) ... [2024-11-14 03:23:10,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78511c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:23:10, skipping insertion in model container [2024-11-14 03:23:10,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:09" (2/3) ... [2024-11-14 03:23:10,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78511c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:23:10, skipping insertion in model container [2024-11-14 03:23:10,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:10" (3/3) ... [2024-11-14 03:23:10,499 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu5-both-nt.c [2024-11-14 03:23:10,522 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:23:10,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cohencu5-both-nt.c that has 1 procedures, 44 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2024-11-14 03:23:10,600 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:23:10,617 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;@808c780, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:23:10,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-14 03:23:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 43 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 03:23:10,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-14 03:23:10,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:10,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-14 03:23:10,631 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:10,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:10,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2796, now seen corresponding path program 1 times [2024-11-14 03:23:10,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:10,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687802222] [2024-11-14 03:23:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:10,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:10,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:10,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687802222] [2024-11-14 03:23:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687802222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:10,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:10,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593902900] [2024-11-14 03:23:10,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:10,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:23:10,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:10,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:23:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:23:10,805 INFO L87 Difference]: Start difference. First operand has 44 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 43 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) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 03:23:10,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:10,829 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2024-11-14 03:23:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:23:10,832 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2024-11-14 03:23:10,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:10,840 INFO L225 Difference]: With dead ends: 46 [2024-11-14 03:23:10,840 INFO L226 Difference]: Without dead ends: 41 [2024-11-14 03:23:10,845 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 03:23:10,850 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:10,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:23:10,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-14 03:23:10,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-14 03:23:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 40 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2024-11-14 03:23:10,904 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 2 [2024-11-14 03:23:10,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:10,906 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2024-11-14 03:23:10,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 03:23:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2024-11-14 03:23:10,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:23:10,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:10,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:23:10,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:23:10,908 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:10,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:10,909 INFO L85 PathProgramCache]: Analyzing trace with hash 86715, now seen corresponding path program 1 times [2024-11-14 03:23:10,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:10,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090713504] [2024-11-14 03:23:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:10,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:23:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160760538] [2024-11-14 03:23:10,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:10,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:10,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:10,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:10,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:23:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:10,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:23:10,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:11,022 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 03:23:11,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:23:11,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:11,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090713504] [2024-11-14 03:23:11,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:23:11,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160760538] [2024-11-14 03:23:11,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160760538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:11,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:11,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:11,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586176114] [2024-11-14 03:23:11,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:11,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:11,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:11,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:11,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:11,027 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 3 states, 2 states have (on average 1.5) 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 03:23:11,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:11,181 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2024-11-14 03:23:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:11,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) 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 03:23:11,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:11,183 INFO L225 Difference]: With dead ends: 73 [2024-11-14 03:23:11,183 INFO L226 Difference]: Without dead ends: 68 [2024-11-14 03:23:11,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:11,185 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:11,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 29 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:11,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-14 03:23:11,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 62. [2024-11-14 03:23:11,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 61 states have internal predecessors, (76), 0 states have call successors, (0), 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 03:23:11,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2024-11-14 03:23:11,194 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 3 [2024-11-14 03:23:11,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:11,194 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2024-11-14 03:23:11,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) 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 03:23:11,194 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2024-11-14 03:23:11,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:23:11,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:11,195 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:23:11,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:23:11,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:11,399 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:11,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2688206, now seen corresponding path program 1 times [2024-11-14 03:23:11,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:11,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702770097] [2024-11-14 03:23:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:11,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:11,460 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 03:23:11,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702770097] [2024-11-14 03:23:11,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702770097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:11,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:11,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:11,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714153645] [2024-11-14 03:23:11,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:11,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:11,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:11,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:11,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:11,462 INFO L87 Difference]: Start difference. First operand 62 states and 76 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 03:23:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:11,552 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2024-11-14 03:23:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:11,557 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 03:23:11,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:11,558 INFO L225 Difference]: With dead ends: 63 [2024-11-14 03:23:11,558 INFO L226 Difference]: Without dead ends: 62 [2024-11-14 03:23:11,558 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 03:23:11,559 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:11,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 27 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:11,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-14 03:23:11,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-14 03:23:11,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.744186046511628) internal successors, (75), 61 states have internal predecessors, (75), 0 states have call successors, (0), 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 03:23:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2024-11-14 03:23:11,575 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 4 [2024-11-14 03:23:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:11,575 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2024-11-14 03:23:11,575 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 03:23:11,575 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2024-11-14 03:23:11,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 03:23:11,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:11,576 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 03:23:11,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:23:11,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:11,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:11,578 INFO L85 PathProgramCache]: Analyzing trace with hash 83334429, now seen corresponding path program 1 times [2024-11-14 03:23:11,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:11,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106160970] [2024-11-14 03:23:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:11,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:11,613 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 03:23:11,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:11,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106160970] [2024-11-14 03:23:11,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106160970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:11,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:11,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:11,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399698357] [2024-11-14 03:23:11,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:11,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:11,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:11,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:11,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:11,615 INFO L87 Difference]: Start difference. First operand 62 states and 75 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 03:23:11,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:11,751 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2024-11-14 03:23:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:11,753 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 03:23:11,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:11,754 INFO L225 Difference]: With dead ends: 68 [2024-11-14 03:23:11,754 INFO L226 Difference]: Without dead ends: 64 [2024-11-14 03:23:11,754 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 03:23:11,755 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:11,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 35 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:11,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-14 03:23:11,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-11-14 03:23:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.6511627906976745) internal successors, (71), 61 states have internal predecessors, (71), 0 states have call successors, (0), 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 03:23:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2024-11-14 03:23:11,767 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 5 [2024-11-14 03:23:11,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:11,767 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-14 03:23:11,767 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 03:23:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2024-11-14 03:23:11,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 03:23:11,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:11,768 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:11,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:23:11,768 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:11,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:11,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1519990913, now seen corresponding path program 1 times [2024-11-14 03:23:11,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:11,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834636398] [2024-11-14 03:23:11,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:11,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:11,833 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 03:23:11,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:11,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834636398] [2024-11-14 03:23:11,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834636398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:11,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:11,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:23:11,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944496339] [2024-11-14 03:23:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:11,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:23:11,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:11,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:23:11,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:23:11,836 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:12,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:12,058 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2024-11-14 03:23:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:23:12,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 03:23:12,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:12,059 INFO L225 Difference]: With dead ends: 66 [2024-11-14 03:23:12,060 INFO L226 Difference]: Without dead ends: 64 [2024-11-14 03:23:12,060 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 03:23:12,061 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 42 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:12,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 32 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:23:12,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-14 03:23:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-11-14 03:23:12,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.6046511627906976) internal successors, (69), 61 states have internal predecessors, (69), 0 states have call successors, (0), 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 03:23:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2024-11-14 03:23:12,074 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 7 [2024-11-14 03:23:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:12,074 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2024-11-14 03:23:12,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2024-11-14 03:23:12,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:23:12,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:12,075 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:12,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:23:12,075 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:12,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:12,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2109733955, now seen corresponding path program 1 times [2024-11-14 03:23:12,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:12,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847187745] [2024-11-14 03:23:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:12,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:12,240 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 03:23:12,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:12,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847187745] [2024-11-14 03:23:12,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847187745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:12,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:12,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:23:12,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033729677] [2024-11-14 03:23:12,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:12,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:23:12,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:12,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:23:12,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:23:12,245 INFO L87 Difference]: Start difference. First operand 62 states and 69 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:12,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:12,444 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2024-11-14 03:23:12,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:23:12,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 03:23:12,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:12,445 INFO L225 Difference]: With dead ends: 66 [2024-11-14 03:23:12,445 INFO L226 Difference]: Without dead ends: 63 [2024-11-14 03:23:12,446 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 03:23:12,446 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:12,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 23 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:23:12,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-14 03:23:12,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2024-11-14 03:23:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 43 states have (on average 1.5348837209302326) internal successors, (66), 60 states have internal predecessors, (66), 0 states have call successors, (0), 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 03:23:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2024-11-14 03:23:12,458 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 11 [2024-11-14 03:23:12,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:12,458 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2024-11-14 03:23:12,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:12,458 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2024-11-14 03:23:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 03:23:12,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:12,459 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:12,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:23:12,459 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:12,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1764553063, now seen corresponding path program 1 times [2024-11-14 03:23:12,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:12,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968609425] [2024-11-14 03:23:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:12,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:12,554 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 03:23:12,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:12,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968609425] [2024-11-14 03:23:12,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968609425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:12,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:12,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:12,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248110618] [2024-11-14 03:23:12,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:12,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:12,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:12,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:12,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:12,556 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:12,570 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2024-11-14 03:23:12,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:12,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-14 03:23:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:12,571 INFO L225 Difference]: With dead ends: 61 [2024-11-14 03:23:12,571 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 03:23:12,571 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 03:23:12,572 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 35 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 03:23:12,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 35 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:23:12,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 03:23:12,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-14 03:23:12,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.4883720930232558) internal successors, (64), 59 states have internal predecessors, (64), 0 states have call successors, (0), 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 03:23:12,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2024-11-14 03:23:12,584 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 15 [2024-11-14 03:23:12,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:12,584 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2024-11-14 03:23:12,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:12,585 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2024-11-14 03:23:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-14 03:23:12,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:12,585 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:12,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:23:12,588 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:12,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:12,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1133429827, now seen corresponding path program 1 times [2024-11-14 03:23:12,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:12,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789946903] [2024-11-14 03:23:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:12,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:12,641 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 03:23:12,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:12,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789946903] [2024-11-14 03:23:12,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789946903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:12,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:12,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:12,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974807940] [2024-11-14 03:23:12,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:12,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:12,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:12,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:12,643 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 2 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 03:23:12,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:12,666 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2024-11-14 03:23:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:12,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 2 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 03:23:12,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:12,667 INFO L225 Difference]: With dead ends: 61 [2024-11-14 03:23:12,667 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 03:23:12,667 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 03:23:12,668 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 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 03:23:12,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:23:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 03:23:12,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-14 03:23:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 59 states have internal predecessors, (63), 0 states have call successors, (0), 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 03:23:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2024-11-14 03:23:12,680 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 16 [2024-11-14 03:23:12,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:12,680 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2024-11-14 03:23:12,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 2 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 03:23:12,681 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2024-11-14 03:23:12,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:23:12,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:12,681 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 03:23:12,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:23:12,686 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:12,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:12,686 INFO L85 PathProgramCache]: Analyzing trace with hash -776586199, now seen corresponding path program 1 times [2024-11-14 03:23:12,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:12,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729520155] [2024-11-14 03:23:12,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:12,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:12,761 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 03:23:12,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:12,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729520155] [2024-11-14 03:23:12,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729520155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:12,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:12,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:12,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715414738] [2024-11-14 03:23:12,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:12,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:12,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:12,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:12,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:12,763 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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 03:23:12,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:12,839 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2024-11-14 03:23:12,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:12,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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 03:23:12,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:12,841 INFO L225 Difference]: With dead ends: 61 [2024-11-14 03:23:12,842 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 03:23:12,842 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 03:23:12,843 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:12,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 40 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:12,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 03:23:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-14 03:23:12,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.441860465116279) internal successors, (62), 59 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2024-11-14 03:23:12,849 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 17 [2024-11-14 03:23:12,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:12,849 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2024-11-14 03:23:12,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 2 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 03:23:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2024-11-14 03:23:12,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 03:23:12,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:12,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:12,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:23:12,851 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:12,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:12,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1695631679, now seen corresponding path program 1 times [2024-11-14 03:23:12,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:12,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976145251] [2024-11-14 03:23:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:12,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:12,931 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 03:23:12,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:12,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976145251] [2024-11-14 03:23:12,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976145251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:12,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:12,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:12,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035666497] [2024-11-14 03:23:12,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:12,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:12,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:12,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:12,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:12,933 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 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 03:23:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:13,013 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2024-11-14 03:23:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:13,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 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 18 [2024-11-14 03:23:13,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:13,014 INFO L225 Difference]: With dead ends: 61 [2024-11-14 03:23:13,014 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 03:23:13,015 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 03:23:13,016 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:13,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:13,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 03:23:13,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-14 03:23:13,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 59 states have internal predecessors, (61), 0 states have call successors, (0), 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 03:23:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2024-11-14 03:23:13,022 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 18 [2024-11-14 03:23:13,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:13,022 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2024-11-14 03:23:13,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 2 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 03:23:13,023 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2024-11-14 03:23:13,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:23:13,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:13,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:13,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:23:13,024 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:13,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1709440705, now seen corresponding path program 1 times [2024-11-14 03:23:13,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:13,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385276246] [2024-11-14 03:23:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:13,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:13,081 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 03:23:13,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:13,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385276246] [2024-11-14 03:23:13,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385276246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:13,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:13,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-14 03:23:13,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908664422] [2024-11-14 03:23:13,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:13,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:13,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:13,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:13,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:13,083 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:13,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:13,202 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2024-11-14 03:23:13,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:13,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-14 03:23:13,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:13,203 INFO L225 Difference]: With dead ends: 61 [2024-11-14 03:23:13,203 INFO L226 Difference]: Without dead ends: 60 [2024-11-14 03:23:13,203 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 03:23:13,204 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:13,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:13,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-14 03:23:13,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-14 03:23:13,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 59 states have internal predecessors, (60), 0 states have call successors, (0), 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 03:23:13,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2024-11-14 03:23:13,209 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 20 [2024-11-14 03:23:13,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:13,209 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2024-11-14 03:23:13,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2024-11-14 03:23:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:23:13,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:13,210 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:13,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:23:13,210 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:13,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:13,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1032233947, now seen corresponding path program 1 times [2024-11-14 03:23:13,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:13,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390644450] [2024-11-14 03:23:13,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:13,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:23:13,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480852280] [2024-11-14 03:23:13,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:13,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:13,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:13,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:13,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:23:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:13,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:23:13,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:13,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:13,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:13,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390644450] [2024-11-14 03:23:13,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:23:13,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480852280] [2024-11-14 03:23:13,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480852280] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:13,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1872881498] [2024-11-14 03:23:13,572 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:13,572 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:13,576 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:13,581 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:13,581 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:14,604 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:15,472 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1616#(exists ((|v_ULTIMATE.start_main_~z~0#1_48| Int)) (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~z~0#1_48| |v_ULTIMATE.start_main_~z~0#1_48|)) (<= (+ 6 |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_main_~z~0#1_48|)) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= 12 |v_ULTIMATE.start_main_~z~0#1_48|) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~z~0#1_48| 2147483647) (<= |v_ULTIMATE.start_main_~z~0#1_48| (+ 5 |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:23:15,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:15,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:23:15,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2024-11-14 03:23:15,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475288157] [2024-11-14 03:23:15,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:15,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:23:15,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:15,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:23:15,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:23:15,475 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 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 03:23:15,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:15,671 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2024-11-14 03:23:15,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:23:15,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 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) Word has length 24 [2024-11-14 03:23:15,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:15,673 INFO L225 Difference]: With dead ends: 115 [2024-11-14 03:23:15,673 INFO L226 Difference]: Without dead ends: 110 [2024-11-14 03:23:15,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 9 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:23:15,674 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 106 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:15,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 51 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:23:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-14 03:23:15,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2024-11-14 03:23:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 99 states have internal predecessors, (124), 0 states have call successors, (0), 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 03:23:15,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 124 transitions. [2024-11-14 03:23:15,680 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 124 transitions. Word has length 24 [2024-11-14 03:23:15,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:15,681 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 124 transitions. [2024-11-14 03:23:15,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 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 03:23:15,684 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 124 transitions. [2024-11-14 03:23:15,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 03:23:15,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:15,685 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:15,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:23:15,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 03:23:15,886 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:15,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:15,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1934481244, now seen corresponding path program 1 times [2024-11-14 03:23:15,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:15,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346186879] [2024-11-14 03:23:15,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:15,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:15,991 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 03:23:15,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:15,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346186879] [2024-11-14 03:23:15,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346186879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:15,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995383612] [2024-11-14 03:23:15,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:15,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:15,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:15,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:15,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:23:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:16,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:23:16,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:16,155 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 03:23:16,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:16,240 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 03:23:16,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995383612] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:16,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1390833455] [2024-11-14 03:23:16,243 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:16,244 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:16,244 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:16,244 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:16,245 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:16,814 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:17,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1390833455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:17,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:17,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [2, 2, 2] total 13 [2024-11-14 03:23:17,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44806679] [2024-11-14 03:23:17,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:17,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:23:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:17,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:23:17,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:23:17,411 INFO L87 Difference]: Start difference. First operand 100 states and 124 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:18,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:18,039 INFO L93 Difference]: Finished difference Result 100 states and 124 transitions. [2024-11-14 03:23:18,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:23:18,040 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-14 03:23:18,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:18,041 INFO L225 Difference]: With dead ends: 100 [2024-11-14 03:23:18,041 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 03:23:18,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 53 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=172, Invalid=290, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:23:18,042 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 59 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:18,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 0 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:23:18,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 03:23:18,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-14 03:23:18,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 87 states have (on average 1.1494252873563218) internal successors, (100), 91 states have internal predecessors, (100), 0 states have call successors, (0), 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 03:23:18,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2024-11-14 03:23:18,049 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 25 [2024-11-14 03:23:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:18,049 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2024-11-14 03:23:18,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:23:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2024-11-14 03:23:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 03:23:18,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:18,050 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:18,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:23:18,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 03:23:18,254 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:18,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:18,254 INFO L85 PathProgramCache]: Analyzing trace with hash 160623623, now seen corresponding path program 1 times [2024-11-14 03:23:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:18,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265297852] [2024-11-14 03:23:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:18,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:18,306 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 03:23:18,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:18,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265297852] [2024-11-14 03:23:18,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265297852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:18,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199113047] [2024-11-14 03:23:18,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:18,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:18,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:18,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:18,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:23:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:18,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:23:18,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:18,459 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 03:23:18,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:18,530 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 03:23:18,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199113047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:18,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [399257623] [2024-11-14 03:23:18,533 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:18,535 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:18,536 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:18,536 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:18,536 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:19,004 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:19,614 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2384#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= |ULTIMATE.start_main_~z~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483634)) (<= 0 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 03:23:19,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:19,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:19,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-14 03:23:19,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477807516] [2024-11-14 03:23:19,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:19,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:23:19,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:19,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:23:19,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:23:19,617 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 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 03:23:19,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:19,791 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2024-11-14 03:23:19,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:23:19,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 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) Word has length 26 [2024-11-14 03:23:19,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:19,793 INFO L225 Difference]: With dead ends: 94 [2024-11-14 03:23:19,793 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 03:23:19,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 9 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:23:19,795 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 34 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:19,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 29 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:19,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 03:23:19,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2024-11-14 03:23:19,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 87 states have (on average 1.1264367816091954) internal successors, (98), 91 states have internal predecessors, (98), 0 states have call successors, (0), 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 03:23:19,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2024-11-14 03:23:19,804 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 26 [2024-11-14 03:23:19,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:19,804 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2024-11-14 03:23:19,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 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 03:23:19,804 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2024-11-14 03:23:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 03:23:19,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:19,805 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:19,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:23:20,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:20,006 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:20,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:20,007 INFO L85 PathProgramCache]: Analyzing trace with hash -259519511, now seen corresponding path program 1 times [2024-11-14 03:23:20,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:20,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460395770] [2024-11-14 03:23:20,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:20,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:20,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:20,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460395770] [2024-11-14 03:23:20,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460395770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:20,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031290464] [2024-11-14 03:23:20,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:20,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:20,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:20,100 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:20,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:23:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:20,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:23:20,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:20,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:26,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031290464] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:26,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2069101949] [2024-11-14 03:23:26,640 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:26,640 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:26,641 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:26,642 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:26,642 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:27,041 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:27,910 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2763#(exists ((|v_ULTIMATE.start_main_~y~0#1_63| Int) (|v_ULTIMATE.start_main_~z~0#1_65| Int)) (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~y~0#1_63| 178956970) (<= 6 |v_ULTIMATE.start_main_~z~0#1_65|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= (+ 2147483648 (* |v_ULTIMATE.start_main_~y~0#1_63| 12)) (* |v_ULTIMATE.start_main_~z~0#1_65| |v_ULTIMATE.start_main_~z~0#1_65|)) (<= |v_ULTIMATE.start_main_~z~0#1_65| 178956975) (<= 1 |v_ULTIMATE.start_main_~y~0#1_63|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 178956962)) (<= 0 |ULTIMATE.start_main_~n~0#1|)))' at error location [2024-11-14 03:23:27,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:27,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:27,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2024-11-14 03:23:27,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446997413] [2024-11-14 03:23:27,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:27,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:23:27,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:27,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:23:27,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=245, Unknown=2, NotChecked=0, Total=342 [2024-11-14 03:23:27,914 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 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 03:23:28,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:28,124 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2024-11-14 03:23:28,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:23:28,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 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 28 [2024-11-14 03:23:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:28,126 INFO L225 Difference]: With dead ends: 92 [2024-11-14 03:23:28,126 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 03:23:28,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=135, Invalid=369, Unknown=2, NotChecked=0, Total=506 [2024-11-14 03:23:28,128 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 49 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:28,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 9 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:28,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 03:23:28,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 03:23:28,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 87 states have (on average 1.0919540229885059) internal successors, (95), 90 states have internal predecessors, (95), 0 states have call successors, (0), 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 03:23:28,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2024-11-14 03:23:28,139 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 28 [2024-11-14 03:23:28,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:28,139 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2024-11-14 03:23:28,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 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 03:23:28,139 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2024-11-14 03:23:28,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 03:23:28,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:28,140 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:28,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:23:28,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:28,344 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash 249908883, now seen corresponding path program 1 times [2024-11-14 03:23:28,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:28,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512729690] [2024-11-14 03:23:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:28,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:28,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512729690] [2024-11-14 03:23:28,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512729690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:28,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099283433] [2024-11-14 03:23:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:28,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:28,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:28,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:28,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:23:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:28,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:23:28,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:28,579 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:28,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:28,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099283433] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:28,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [547593961] [2024-11-14 03:23:28,673 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:28,673 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:28,673 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:28,673 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:28,673 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:28,992 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:29,588 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3195#(and (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|))' at error location [2024-11-14 03:23:29,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:29,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:29,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2024-11-14 03:23:29,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182106824] [2024-11-14 03:23:29,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:29,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:23:29,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:29,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:23:29,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:23:29,592 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 03:23:29,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:29,624 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2024-11-14 03:23:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:23:29,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 37 [2024-11-14 03:23:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:29,626 INFO L225 Difference]: With dead ends: 108 [2024-11-14 03:23:29,626 INFO L226 Difference]: Without dead ends: 107 [2024-11-14 03:23:29,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 84 SyntacticMatches, 14 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:23:29,627 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 10 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:29,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 107 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:23:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-14 03:23:29,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2024-11-14 03:23:29,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.07) internal successors, (107), 103 states have internal predecessors, (107), 0 states have call successors, (0), 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 03:23:29,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 107 transitions. [2024-11-14 03:23:29,635 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 107 transitions. Word has length 37 [2024-11-14 03:23:29,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:29,637 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 107 transitions. [2024-11-14 03:23:29,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 03:23:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 107 transitions. [2024-11-14 03:23:29,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 03:23:29,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:29,638 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:29,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:23:29,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:29,839 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:29,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:29,840 INFO L85 PathProgramCache]: Analyzing trace with hash -355729771, now seen corresponding path program 1 times [2024-11-14 03:23:29,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:29,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883739276] [2024-11-14 03:23:29,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:29,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:29,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:29,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883739276] [2024-11-14 03:23:29,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883739276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:29,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761331733] [2024-11-14 03:23:29,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:29,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:29,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:29,976 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:29,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:23:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:30,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:23:30,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:30,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:30,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761331733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:30,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [887632329] [2024-11-14 03:23:30,378 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:30,378 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:30,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:30,379 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:30,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:30,667 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:31,509 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3665#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 03:23:31,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:31,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:31,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-11-14 03:23:31,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571042264] [2024-11-14 03:23:31,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:31,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:23:31,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:31,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:23:31,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:23:31,512 INFO L87 Difference]: Start difference. First operand 104 states and 107 transitions. Second operand has 11 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 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 03:23:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:31,729 INFO L93 Difference]: Finished difference Result 105 states and 107 transitions. [2024-11-14 03:23:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:23:31,730 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 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 39 [2024-11-14 03:23:31,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:31,730 INFO L225 Difference]: With dead ends: 105 [2024-11-14 03:23:31,730 INFO L226 Difference]: Without dead ends: 104 [2024-11-14 03:23:31,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 85 SyntacticMatches, 15 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:23:31,732 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 33 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:31,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 37 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-14 03:23:31,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-14 03:23:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.05) internal successors, (105), 103 states have internal predecessors, (105), 0 states have call successors, (0), 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 03:23:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2024-11-14 03:23:31,738 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 39 [2024-11-14 03:23:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:31,738 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2024-11-14 03:23:31,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 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 03:23:31,739 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2024-11-14 03:23:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 03:23:31,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:31,740 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2024-11-14 03:23:31,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 03:23:31,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-14 03:23:31,944 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:31,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:31,944 INFO L85 PathProgramCache]: Analyzing trace with hash 44367303, now seen corresponding path program 2 times [2024-11-14 03:23:31,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:31,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414161248] [2024-11-14 03:23:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:31,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:32,223 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:32,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414161248] [2024-11-14 03:23:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414161248] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:32,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100770815] [2024-11-14 03:23:32,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:23:32,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:32,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:32,226 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:32,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:23:32,284 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 03:23:32,284 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:23:32,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 03:23:32,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-14 03:23:32,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:23:32,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100770815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:32,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:23:32,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2024-11-14 03:23:32,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985708531] [2024-11-14 03:23:32,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:32,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:23:32,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:32,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:23:32,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:23:32,559 INFO L87 Difference]: Start difference. First operand 104 states and 105 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 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 03:23:32,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:32,766 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2024-11-14 03:23:32,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:23:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 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) Word has length 68 [2024-11-14 03:23:32,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:32,768 INFO L225 Difference]: With dead ends: 104 [2024-11-14 03:23:32,769 INFO L226 Difference]: Without dead ends: 103 [2024-11-14 03:23:32,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:23:32,770 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 108 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:32,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 6 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:23:32,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-14 03:23:32,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-11-14 03:23:32,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 100 states have (on average 1.03) internal successors, (103), 102 states have internal predecessors, (103), 0 states have call successors, (0), 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 03:23:32,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2024-11-14 03:23:32,778 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 68 [2024-11-14 03:23:32,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:32,778 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2024-11-14 03:23:32,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 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 03:23:32,778 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2024-11-14 03:23:32,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:23:32,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:32,779 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1] [2024-11-14 03:23:32,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:23:32,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-14 03:23:32,984 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:32,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:32,984 INFO L85 PathProgramCache]: Analyzing trace with hash -541801259, now seen corresponding path program 2 times [2024-11-14 03:23:32,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:32,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581551598] [2024-11-14 03:23:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:32,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:33,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:33,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581551598] [2024-11-14 03:23:33,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581551598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:33,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212962019] [2024-11-14 03:23:33,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:23:33,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:33,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:33,286 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:33,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:23:33,366 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-14 03:23:33,366 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:23:33,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:23:33,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:33,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:34,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212962019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:34,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1771376067] [2024-11-14 03:23:34,572 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:34,572 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:34,572 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:34,572 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:34,572 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:34,866 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:36,807 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4846#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 03:23:36,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:36,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:36,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 29 [2024-11-14 03:23:36,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282483515] [2024-11-14 03:23:36,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:36,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-14 03:23:36,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:36,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-14 03:23:36,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1372, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 03:23:36,810 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand has 31 states, 30 states have (on average 8.1) internal successors, (243), 30 states have internal predecessors, (243), 0 states have call successors, (0), 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 03:23:38,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:38,445 INFO L93 Difference]: Finished difference Result 173 states and 178 transitions. [2024-11-14 03:23:38,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-14 03:23:38,445 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 8.1) internal successors, (243), 30 states have internal predecessors, (243), 0 states have call successors, (0), 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 81 [2024-11-14 03:23:38,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:38,446 INFO L225 Difference]: With dead ends: 173 [2024-11-14 03:23:38,446 INFO L226 Difference]: Without dead ends: 172 [2024-11-14 03:23:38,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 181 SyntacticMatches, 31 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1814 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=887, Invalid=3403, Unknown=0, NotChecked=0, Total=4290 [2024-11-14 03:23:38,448 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 272 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:38,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 93 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:23:38,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-14 03:23:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2024-11-14 03:23:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 165 states have (on average 1.0545454545454545) internal successors, (174), 167 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:23:38,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2024-11-14 03:23:38,459 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 81 [2024-11-14 03:23:38,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:38,459 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2024-11-14 03:23:38,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 8.1) internal successors, (243), 30 states have internal predecessors, (243), 0 states have call successors, (0), 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 03:23:38,459 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2024-11-14 03:23:38,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:23:38,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:38,461 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-14 03:23:38,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 03:23:38,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:38,662 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:38,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:38,663 INFO L85 PathProgramCache]: Analyzing trace with hash 339431227, now seen corresponding path program 2 times [2024-11-14 03:23:38,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:38,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432529398] [2024-11-14 03:23:38,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:38,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:23:38,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50527634] [2024-11-14 03:23:38,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:23:38,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:38,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:38,691 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:38,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:23:38,775 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:23:38,775 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:23:38,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:23:38,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:38,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:39,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:39,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432529398] [2024-11-14 03:23:39,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:23:39,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50527634] [2024-11-14 03:23:39,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50527634] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:39,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [380629201] [2024-11-14 03:23:39,232 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:39,232 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:39,232 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:39,232 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:39,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:39,549 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:41,007 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5792#(exists ((|v_ULTIMATE.start_main_~z~0#1_98| Int)) (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~z~0#1_98| 2147483647) (<= (+ 6 |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_main_~z~0#1_98|)) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= 12 |v_ULTIMATE.start_main_~z~0#1_98|) (<= 2147483648 (* |v_ULTIMATE.start_main_~z~0#1_98| |v_ULTIMATE.start_main_~z~0#1_98|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~z~0#1_98| (+ 5 |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:23:41,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:41,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:23:41,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2024-11-14 03:23:41,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952899909] [2024-11-14 03:23:41,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:41,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:23:41,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:41,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:23:41,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:23:41,009 INFO L87 Difference]: Start difference. First operand 168 states and 174 transitions. Second operand has 12 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:23:41,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:41,509 INFO L93 Difference]: Finished difference Result 224 states and 229 transitions. [2024-11-14 03:23:41,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:23:41,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 0 states have call successors, (0), 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 87 [2024-11-14 03:23:41,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:41,511 INFO L225 Difference]: With dead ends: 224 [2024-11-14 03:23:41,511 INFO L226 Difference]: Without dead ends: 223 [2024-11-14 03:23:41,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 207 SyntacticMatches, 33 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:23:41,512 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 159 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:41,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 193 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:23:41,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-14 03:23:41,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 216. [2024-11-14 03:23:41,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 213 states have (on average 1.0469483568075117) internal successors, (223), 215 states have internal predecessors, (223), 0 states have call successors, (0), 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 03:23:41,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 223 transitions. [2024-11-14 03:23:41,527 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 223 transitions. Word has length 87 [2024-11-14 03:23:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:41,527 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 223 transitions. [2024-11-14 03:23:41,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:23:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 223 transitions. [2024-11-14 03:23:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-14 03:23:41,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:41,529 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-14 03:23:41,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:23:41,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:41,729 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:41,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1312132925, now seen corresponding path program 2 times [2024-11-14 03:23:41,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:41,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803817600] [2024-11-14 03:23:41,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:41,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:41,888 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:41,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:41,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803817600] [2024-11-14 03:23:41,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803817600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:41,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559498793] [2024-11-14 03:23:41,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:23:41,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:41,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:41,891 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:41,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:23:41,972 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:23:41,973 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:23:41,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:23:41,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:42,136 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:42,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:42,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559498793] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:42,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [199645882] [2024-11-14 03:23:42,355 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:42,355 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:42,355 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:42,355 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:42,355 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:42,620 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:43,497 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6877#(and (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|))' at error location [2024-11-14 03:23:43,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:43,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:43,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-14 03:23:43,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47971134] [2024-11-14 03:23:43,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:43,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:23:43,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:43,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:23:43,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:23:43,500 INFO L87 Difference]: Start difference. First operand 216 states and 223 transitions. Second operand has 12 states, 11 states have (on average 18.181818181818183) internal successors, (200), 11 states have internal predecessors, (200), 0 states have call successors, (0), 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 03:23:43,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:43,554 INFO L93 Difference]: Finished difference Result 232 states and 237 transitions. [2024-11-14 03:23:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:23:43,555 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 18.181818181818183) internal successors, (200), 11 states have internal predecessors, (200), 0 states have call successors, (0), 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 100 [2024-11-14 03:23:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:43,556 INFO L225 Difference]: With dead ends: 232 [2024-11-14 03:23:43,556 INFO L226 Difference]: Without dead ends: 231 [2024-11-14 03:23:43,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 246 SyntacticMatches, 38 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:23:43,557 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:43,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 223 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:23:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-14 03:23:43,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2024-11-14 03:23:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 226 states have (on average 1.0221238938053097) internal successors, (231), 228 states have internal predecessors, (231), 0 states have call successors, (0), 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 03:23:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 231 transitions. [2024-11-14 03:23:43,572 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 231 transitions. Word has length 100 [2024-11-14 03:23:43,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:43,573 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 231 transitions. [2024-11-14 03:23:43,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 18.181818181818183) internal successors, (200), 11 states have internal predecessors, (200), 0 states have call successors, (0), 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 03:23:43,573 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 231 transitions. [2024-11-14 03:23:43,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-14 03:23:43,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:43,574 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1] [2024-11-14 03:23:43,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 03:23:43,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:43,780 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:23:43,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash 660005205, now seen corresponding path program 3 times [2024-11-14 03:23:43,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:43,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685915816] [2024-11-14 03:23:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:43,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:44,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:44,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685915816] [2024-11-14 03:23:44,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685915816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:23:44,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993272264] [2024-11-14 03:23:44,884 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:23:44,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:23:44,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:44,886 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:23:44,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:23:44,968 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:23:44,968 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:23:44,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 03:23:44,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:23:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:46,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:23:48,278 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:23:48,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993272264] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:23:48,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [814180441] [2024-11-14 03:23:48,280 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:23:48,280 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:23:48,281 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:23:48,281 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:23:48,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:23:48,493 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:23:53,246 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8420#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 03:23:53,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:23:53,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:23:53,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 21] total 65 [2024-11-14 03:23:53,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516127910] [2024-11-14 03:23:53,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:23:53,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-14 03:23:53,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:53,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-14 03:23:53,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=867, Invalid=4833, Unknown=0, NotChecked=0, Total=5700 [2024-11-14 03:23:53,251 INFO L87 Difference]: Start difference. First operand 229 states and 231 transitions. Second operand has 67 states, 66 states have (on average 7.5) internal successors, (495), 66 states have internal predecessors, (495), 0 states have call successors, (0), 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 03:24:02,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:02,114 INFO L93 Difference]: Finished difference Result 387 states and 402 transitions. [2024-11-14 03:24:02,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-14 03:24:02,115 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 7.5) internal successors, (495), 66 states have internal predecessors, (495), 0 states have call successors, (0), 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 165 [2024-11-14 03:24:02,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:02,118 INFO L225 Difference]: With dead ends: 387 [2024-11-14 03:24:02,118 INFO L226 Difference]: Without dead ends: 386 [2024-11-14 03:24:02,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 379 SyntacticMatches, 63 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11905 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=5828, Invalid=16224, Unknown=0, NotChecked=0, Total=22052 [2024-11-14 03:24:02,126 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 1939 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:02,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 174 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 03:24:02,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-14 03:24:02,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 378. [2024-11-14 03:24:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 375 states have (on average 1.0453333333333332) internal successors, (392), 377 states have internal predecessors, (392), 0 states have call successors, (0), 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 03:24:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 392 transitions. [2024-11-14 03:24:02,161 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 392 transitions. Word has length 165 [2024-11-14 03:24:02,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:02,161 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 392 transitions. [2024-11-14 03:24:02,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 7.5) internal successors, (495), 66 states have internal predecessors, (495), 0 states have call successors, (0), 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 03:24:02,162 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 392 transitions. [2024-11-14 03:24:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-14 03:24:02,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:02,163 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-11-14 03:24:02,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 03:24:02,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:02,370 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:24:02,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1978511867, now seen corresponding path program 3 times [2024-11-14 03:24:02,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:02,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984515075] [2024-11-14 03:24:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:02,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:24:02,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1810886935] [2024-11-14 03:24:02,410 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:24:02,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:02,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:02,412 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:02,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:24:02,525 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:24:02,525 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:24:02,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 03:24:02,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 0 proven. 965 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:24:02,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:24:03,505 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 0 proven. 965 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:24:03,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:03,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984515075] [2024-11-14 03:24:03,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:24:03,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810886935] [2024-11-14 03:24:03,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810886935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:24:03,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1816355909] [2024-11-14 03:24:03,506 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:24:03,506 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:24:03,507 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:24:03,507 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:24:03,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:24:03,722 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:24:07,773 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10672#(exists ((|v_ULTIMATE.start_main_~z~0#1_148| Int)) (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~z~0#1_148| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= 2147483648 (* |v_ULTIMATE.start_main_~z~0#1_148| |v_ULTIMATE.start_main_~z~0#1_148|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= (+ 6 |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_main_~z~0#1_148|)) (<= 12 |v_ULTIMATE.start_main_~z~0#1_148|) (<= |v_ULTIMATE.start_main_~z~0#1_148| (+ 5 |ULTIMATE.start_main_~y~0#1|))))' at error location [2024-11-14 03:24:07,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:24:07,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:24:07,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2024-11-14 03:24:07,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267710851] [2024-11-14 03:24:07,774 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:24:07,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 03:24:07,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:07,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 03:24:07,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:24:07,776 INFO L87 Difference]: Start difference. First operand 378 states and 392 transitions. Second operand has 24 states, 23 states have (on average 18.52173913043478) internal successors, (426), 23 states have internal predecessors, (426), 0 states have call successors, (0), 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 03:24:09,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:09,340 INFO L93 Difference]: Finished difference Result 484 states and 495 transitions. [2024-11-14 03:24:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:24:09,341 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 18.52173913043478) internal successors, (426), 23 states have internal predecessors, (426), 0 states have call successors, (0), 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 213 [2024-11-14 03:24:09,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:09,343 INFO L225 Difference]: With dead ends: 484 [2024-11-14 03:24:09,343 INFO L226 Difference]: Without dead ends: 483 [2024-11-14 03:24:09,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 524 SyntacticMatches, 81 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1460 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2024-11-14 03:24:09,344 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 339 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:09,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 822 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:24:09,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-14 03:24:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 468. [2024-11-14 03:24:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 465 states have (on average 1.038709677419355) internal successors, (483), 467 states have internal predecessors, (483), 0 states have call successors, (0), 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 03:24:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 483 transitions. [2024-11-14 03:24:09,372 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 483 transitions. Word has length 213 [2024-11-14 03:24:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:09,373 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 483 transitions. [2024-11-14 03:24:09,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 18.52173913043478) internal successors, (426), 23 states have internal predecessors, (426), 0 states have call successors, (0), 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 03:24:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 483 transitions. [2024-11-14 03:24:09,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-14 03:24:09,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:09,375 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-11-14 03:24:09,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-14 03:24:09,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:09,580 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:24:09,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash 189375613, now seen corresponding path program 3 times [2024-11-14 03:24:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:09,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972906685] [2024-11-14 03:24:09,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:09,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 1095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:24:10,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:10,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972906685] [2024-11-14 03:24:10,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972906685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:24:10,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227588430] [2024-11-14 03:24:10,010 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:24:10,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:10,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:10,012 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:10,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:24:10,101 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:24:10,101 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:24:10,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:24:10,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 1095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:24:10,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:24:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1095 backedges. 0 proven. 1095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:24:10,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227588430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:24:10,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [171803827] [2024-11-14 03:24:10,937 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:24:10,937 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:24:10,937 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:24:10,937 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:24:10,937 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:24:11,141 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:24:13,274 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13074#(and (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|))' at error location [2024-11-14 03:24:13,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:24:13,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:24:13,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2024-11-14 03:24:13,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151351891] [2024-11-14 03:24:13,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:24:13,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 03:24:13,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:13,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 03:24:13,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=806, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:24:13,276 INFO L87 Difference]: Start difference. First operand 468 states and 483 transitions. Second operand has 24 states, 23 states have (on average 19.652173913043477) internal successors, (452), 23 states have internal predecessors, (452), 0 states have call successors, (0), 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 03:24:13,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:13,394 INFO L93 Difference]: Finished difference Result 486 states and 497 transitions. [2024-11-14 03:24:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:24:13,394 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 19.652173913043477) internal successors, (452), 23 states have internal predecessors, (452), 0 states have call successors, (0), 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 226 [2024-11-14 03:24:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:13,396 INFO L225 Difference]: With dead ends: 486 [2024-11-14 03:24:13,397 INFO L226 Difference]: Without dead ends: 485 [2024-11-14 03:24:13,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 569 SyntacticMatches, 86 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3594 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=316, Invalid=806, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:24:13,398 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 12 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:13,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 453 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:24:13,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-14 03:24:13,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 481. [2024-11-14 03:24:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 478 states have (on average 1.0146443514644352) internal successors, (485), 480 states have internal predecessors, (485), 0 states have call successors, (0), 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 03:24:13,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 485 transitions. [2024-11-14 03:24:13,424 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 485 transitions. Word has length 226 [2024-11-14 03:24:13,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:13,424 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 485 transitions. [2024-11-14 03:24:13,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 19.652173913043477) internal successors, (452), 23 states have internal predecessors, (452), 0 states have call successors, (0), 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 03:24:13,424 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 485 transitions. [2024-11-14 03:24:13,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-11-14 03:24:13,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:13,429 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1] [2024-11-14 03:24:13,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:24:13,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:13,629 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:24:13,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:13,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1620610923, now seen corresponding path program 4 times [2024-11-14 03:24:13,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:13,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83589818] [2024-11-14 03:24:13,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:13,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:13,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3145 backedges. 0 proven. 3145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:24:17,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:17,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83589818] [2024-11-14 03:24:17,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83589818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:24:17,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497577668] [2024-11-14 03:24:17,248 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:24:17,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:24:17,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:24:17,250 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:24:17,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 03:24:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:17,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-14 03:24:17,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:22,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3145 backedges. 0 proven. 3145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:24:22,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:24:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3145 backedges. 0 proven. 3145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:24:28,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497577668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:24:28,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1881712538] [2024-11-14 03:24:28,101 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:24:28,101 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:24:28,101 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:24:28,101 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:24:28,101 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:24:28,285 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:24:46,021 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16498#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 03:24:46,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:24:46,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:24:46,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 51, 51] total 155 [2024-11-14 03:24:46,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286169904] [2024-11-14 03:24:46,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:24:46,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2024-11-14 03:24:46,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:46,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2024-11-14 03:24:46,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3792, Invalid=23930, Unknown=0, NotChecked=0, Total=27722 [2024-11-14 03:24:46,029 INFO L87 Difference]: Start difference. First operand 481 states and 485 transitions. Second operand has 157 states, 156 states have (on average 7.211538461538462) internal successors, (1125), 156 states have internal predecessors, (1125), 0 states have call successors, (0), 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 03:25:43,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:25:43,648 INFO L93 Difference]: Finished difference Result 772 states and 800 transitions. [2024-11-14 03:25:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2024-11-14 03:25:43,649 INFO L78 Accepts]: Start accepts. Automaton has has 157 states, 156 states have (on average 7.211538461538462) internal successors, (1125), 156 states have internal predecessors, (1125), 0 states have call successors, (0), 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 375 [2024-11-14 03:25:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:25:43,653 INFO L225 Difference]: With dead ends: 772 [2024-11-14 03:25:43,653 INFO L226 Difference]: Without dead ends: 771 [2024-11-14 03:25:43,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1332 GetRequests, 868 SyntacticMatches, 143 SemanticMatches, 321 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59488 ImplicationChecksByTransitivity, 80.3s TimeCoverageRelationStatistics Valid=25438, Invalid=78568, Unknown=0, NotChecked=0, Total=104006 [2024-11-14 03:25:43,666 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 8425 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 2719 mSolverCounterSat, 1218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8425 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 3937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1218 IncrementalHoareTripleChecker+Valid, 2719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:25:43,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8425 Valid, 400 Invalid, 3937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1218 Valid, 2719 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-14 03:25:43,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-14 03:25:43,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 756. [2024-11-14 03:25:43,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 753 states have (on average 1.0385126162018592) internal successors, (782), 755 states have internal predecessors, (782), 0 states have call successors, (0), 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 03:25:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 782 transitions. [2024-11-14 03:25:43,737 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 782 transitions. Word has length 375 [2024-11-14 03:25:43,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:25:43,738 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 782 transitions. [2024-11-14 03:25:43,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 156 states have (on average 7.211538461538462) internal successors, (1125), 156 states have internal predecessors, (1125), 0 states have call successors, (0), 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 03:25:43,739 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 782 transitions. [2024-11-14 03:25:43,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-14 03:25:43,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:25:43,750 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2024-11-14 03:25:43,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-14 03:25:43,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-14 03:25:43,951 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:25:43,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:25:43,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1516734331, now seen corresponding path program 4 times [2024-11-14 03:25:43,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:25:43,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259943415] [2024-11-14 03:25:43,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:25:43,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:25:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:25:44,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246114956] [2024-11-14 03:25:44,158 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:25:44,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:25:44,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:25:44,161 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:25:44,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 03:25:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:25:44,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-14 03:25:44,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:25:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4895 backedges. 0 proven. 4895 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:25:45,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:25:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4895 backedges. 0 proven. 4895 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:25:47,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:25:47,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259943415] [2024-11-14 03:25:47,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:25:47,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246114956] [2024-11-14 03:25:47,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246114956] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:25:47,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [401140068] [2024-11-14 03:25:47,206 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:25:47,207 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:25:47,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:25:47,207 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:25:47,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:25:47,505 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:26:03,868 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21252#(exists ((|v_ULTIMATE.start_main_~z~0#1_248| Int)) (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~z~0#1_248| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~z~0#1_248| |v_ULTIMATE.start_main_~z~0#1_248|)) (<= 1 |ULTIMATE.start_main_~n~0#1|) (<= |v_ULTIMATE.start_main_~z~0#1_248| (+ 5 |ULTIMATE.start_main_~y~0#1|)) (<= (+ 6 |ULTIMATE.start_main_~y~0#1|) (+ |ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_main_~z~0#1_248|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 12 |v_ULTIMATE.start_main_~z~0#1_248|)))' at error location [2024-11-14 03:26:03,868 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:26:03,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:26:03,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 46 [2024-11-14 03:26:03,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778453104] [2024-11-14 03:26:03,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 03:26:03,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-14 03:26:03,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:26:03,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-14 03:26:03,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=657, Invalid=2649, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 03:26:03,873 INFO L87 Difference]: Start difference. First operand 756 states and 782 transitions. Second operand has 48 states, 47 states have (on average 19.78723404255319) internal successors, (930), 47 states have internal predecessors, (930), 0 states have call successors, (0), 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 03:26:10,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:26:10,327 INFO L93 Difference]: Finished difference Result 1006 states and 1029 transitions. [2024-11-14 03:26:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 03:26:10,328 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 19.78723404255319) internal successors, (930), 47 states have internal predecessors, (930), 0 states have call successors, (0), 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 465 [2024-11-14 03:26:10,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:26:10,334 INFO L225 Difference]: With dead ends: 1006 [2024-11-14 03:26:10,334 INFO L226 Difference]: Without dead ends: 1005 [2024-11-14 03:26:10,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1415 GetRequests, 1160 SyntacticMatches, 177 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5426 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=1713, Invalid=4607, Unknown=0, NotChecked=0, Total=6320 [2024-11-14 03:26:10,336 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 811 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 8314 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 8316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:26:10,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 3376 Invalid, 8316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8314 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 03:26:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-14 03:26:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 972. [2024-11-14 03:26:10,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 969 states have (on average 1.0371517027863777) internal successors, (1005), 971 states have internal predecessors, (1005), 0 states have call successors, (0), 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 03:26:10,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1005 transitions. [2024-11-14 03:26:10,441 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1005 transitions. Word has length 465 [2024-11-14 03:26:10,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:26:10,444 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1005 transitions. [2024-11-14 03:26:10,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 19.78723404255319) internal successors, (930), 47 states have internal predecessors, (930), 0 states have call successors, (0), 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 03:26:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1005 transitions. [2024-11-14 03:26:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-11-14 03:26:10,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:26:10,448 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2024-11-14 03:26:10,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-14 03:26:10,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-14 03:26:10,653 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:26:10,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:26:10,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1796652797, now seen corresponding path program 4 times [2024-11-14 03:26:10,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:26:10,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169149615] [2024-11-14 03:26:10,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:10,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:26:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:26:12,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5181 backedges. 0 proven. 5181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:26:12,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:26:12,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169149615] [2024-11-14 03:26:12,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169149615] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:26:12,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109724207] [2024-11-14 03:26:12,078 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:26:12,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:26:12,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:26:12,081 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:26:12,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:26:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:26:12,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 03:26:12,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:26:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5181 backedges. 0 proven. 5181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:26:12,794 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:26:14,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5181 backedges. 0 proven. 5181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:26:14,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109724207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:26:14,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1403555313] [2024-11-14 03:26:14,042 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:26:14,042 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:26:14,042 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:26:14,043 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:26:14,043 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:26:14,249 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:26:21,050 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '26288#(and (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 1 |ULTIMATE.start_main_~y~0#1|))' at error location [2024-11-14 03:26:21,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:26:21,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:26:21,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2024-11-14 03:26:21,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460219850] [2024-11-14 03:26:21,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:26:21,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-14 03:26:21,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:26:21,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-14 03:26:21,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1168, Invalid=2138, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 03:26:21,055 INFO L87 Difference]: Start difference. First operand 972 states and 1005 transitions. Second operand has 48 states, 47 states have (on average 20.340425531914892) internal successors, (956), 47 states have internal predecessors, (956), 0 states have call successors, (0), 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 03:26:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:26:21,337 INFO L93 Difference]: Finished difference Result 996 states and 1019 transitions. [2024-11-14 03:26:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 03:26:21,337 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 20.340425531914892) internal successors, (956), 47 states have internal predecessors, (956), 0 states have call successors, (0), 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 478 [2024-11-14 03:26:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:26:21,342 INFO L225 Difference]: With dead ends: 996 [2024-11-14 03:26:21,342 INFO L226 Difference]: Without dead ends: 995 [2024-11-14 03:26:21,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1455 GetRequests, 1217 SyntacticMatches, 182 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14178 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1168, Invalid=2138, Unknown=0, NotChecked=0, Total=3306 [2024-11-14 03:26:21,344 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:26:21,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 921 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:26:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-14 03:26:21,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 985. [2024-11-14 03:26:21,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 982 states have (on average 1.0132382892057026) internal successors, (995), 984 states have internal predecessors, (995), 0 states have call successors, (0), 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 03:26:21,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 995 transitions. [2024-11-14 03:26:21,402 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 995 transitions. Word has length 478 [2024-11-14 03:26:21,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:26:21,403 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 995 transitions. [2024-11-14 03:26:21,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 20.340425531914892) internal successors, (956), 47 states have internal predecessors, (956), 0 states have call successors, (0), 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 03:26:21,403 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 995 transitions. [2024-11-14 03:26:21,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2024-11-14 03:26:21,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:26:21,409 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 1, 1] [2024-11-14 03:26:21,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:26:21,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-14 03:26:21,614 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:26:21,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:26:21,614 INFO L85 PathProgramCache]: Analyzing trace with hash 622504149, now seen corresponding path program 5 times [2024-11-14 03:26:21,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:26:21,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110228491] [2024-11-14 03:26:21,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:21,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:26:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:26:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 13090 backedges. 0 proven. 13090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:26:35,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:26:35,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110228491] [2024-11-14 03:26:35,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110228491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:26:35,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277278684] [2024-11-14 03:26:35,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:26:35,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:26:35,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:26:35,241 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:26:35,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-14 03:26:35,558 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2024-11-14 03:26:35,558 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:26:35,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-11-14 03:26:35,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:26:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 13090 backedges. 0 proven. 13090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:26:52,620 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:27:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13090 backedges. 0 proven. 13090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:27:13,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277278684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:27:13,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [872411239] [2024-11-14 03:27:13,021 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:27:13,021 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:27:13,022 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:27:13,022 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:27:13,022 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:27:13,297 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:28:30,087 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33202#(and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 6 |ULTIMATE.start_main_~z~0#1|) (<= 1 |ULTIMATE.start_main_~n~0#1|))' at error location [2024-11-14 03:28:30,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:28:30,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:28:30,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105, 105] total 315 [2024-11-14 03:28:30,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720830903] [2024-11-14 03:28:30,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:28:30,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 317 states [2024-11-14 03:28:30,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:28:30,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 317 interpolants. [2024-11-14 03:28:30,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20440, Invalid=86162, Unknown=0, NotChecked=0, Total=106602 [2024-11-14 03:28:30,126 INFO L87 Difference]: Start difference. First operand 985 states and 995 transitions. Second operand has 317 states, 316 states have (on average 7.14873417721519) internal successors, (2259), 316 states have internal predecessors, (2259), 0 states have call successors, (0), 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 03:31:36,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:36,431 INFO L93 Difference]: Finished difference Result 1539 states and 1598 transitions. [2024-11-14 03:31:36,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 280 states. [2024-11-14 03:31:36,432 INFO L78 Accepts]: Start accepts. Automaton has has 317 states, 316 states have (on average 7.14873417721519) internal successors, (2259), 316 states have internal predecessors, (2259), 0 states have call successors, (0), 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 753 [2024-11-14 03:31:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:36,437 INFO L225 Difference]: With dead ends: 1539 [2024-11-14 03:31:36,437 INFO L226 Difference]: Without dead ends: 1538 [2024-11-14 03:31:36,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2602 GetRequests, 1750 SyntacticMatches, 287 SemanticMatches, 565 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227467 ImplicationChecksByTransitivity, 284.8s TimeCoverageRelationStatistics Valid=85018, Invalid=235904, Unknown=0, NotChecked=0, Total=320922 [2024-11-14 03:31:36,462 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 14166 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 4778 mSolverCounterSat, 1908 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14166 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 6686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1908 IncrementalHoareTripleChecker+Valid, 4778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:36,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14166 Valid, 686 Invalid, 6686 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1908 Valid, 4778 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-14 03:31:36,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2024-11-14 03:31:36,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1512. [2024-11-14 03:31:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1509 states have (on average 1.0351225977468521) internal successors, (1562), 1511 states have internal predecessors, (1562), 0 states have call successors, (0), 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 03:31:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 1562 transitions. [2024-11-14 03:31:36,607 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 1562 transitions. Word has length 753 [2024-11-14 03:31:36,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:36,609 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 1562 transitions. [2024-11-14 03:31:36,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 317 states, 316 states have (on average 7.14873417721519) internal successors, (2259), 316 states have internal predecessors, (2259), 0 states have call successors, (0), 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 03:31:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 1562 transitions. [2024-11-14 03:31:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2024-11-14 03:31:36,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:36,620 INFO L215 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1] [2024-11-14 03:31:36,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-14 03:31:36,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-14 03:31:36,821 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:31:36,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:36,822 INFO L85 PathProgramCache]: Analyzing trace with hash 461337211, now seen corresponding path program 5 times [2024-11-14 03:31:36,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:36,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822855002] [2024-11-14 03:31:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:36,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 03:31:37,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565705305] [2024-11-14 03:31:37,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:31:37,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:37,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:37,908 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:37,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 03:32:05,899 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2024-11-14 03:32:05,899 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:32:05,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-14 03:32:05,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:32:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 21827 backedges. 14546 proven. 2971 refuted. 0 times theorem prover too weak. 4310 trivial. 0 not checked. [2024-11-14 03:32:14,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:35:00,660 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-14 03:35:00,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:35:00,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822855002] [2024-11-14 03:35:00,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 03:35:00,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565705305] [2024-11-14 03:35:00,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2024-11-14 03:35:00,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [559892941] [2024-11-14 03:35:00,662 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-14 03:35:00,662 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:35:00,663 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:35:00,663 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:35:00,663 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:35:00,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2024-11-14 03:35:00,677 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:132) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.checkSatTerm(SmtUtils.java:326) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.isFalse(SymbolicTools.java:220) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.RelationCheckUtil.isEqBottom_SolverAlphaSolver(RelationCheckUtil.java:56) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.ExplicitValueDomain.isEqBottom(ExplicitValueDomain.java:73) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.CompoundDomain.isEqBottom(CompoundDomain.java:84) at de.uni_freiburg.informatik.ultimate.lib.sifa.domain.StatsWrapperDomain.isEqBottom(StatsWrapperDomain.java:69) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.earlyExitAfterStep(DagInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:125) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:447) at java.base/java.io.OutputStream.write(OutputStream.java:167) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:125) at java.base/java.io.BufferedOutputStream.implFlush(BufferedOutputStream.java:252) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:246) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:412) at java.base/sun.nio.cs.StreamEncoder.lockedFlush(StreamEncoder.java:214) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:201) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:262) at java.base/java.io.BufferedWriter.implFlush(BufferedWriter.java:372) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:359) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 44 more [2024-11-14 03:35:00,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:00,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2024-11-14 03:35:00,693 ERROR L171 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2024-11-14 03:35:00,693 INFO L325 BasicCegarLoop]: Counterexample might be feasible [2024-11-14 03:35:00,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2024-11-14 03:35:00,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2024-11-14 03:35:00,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2024-11-14 03:35:00,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2024-11-14 03:35:00,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2024-11-14 03:35:00,732 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2024-11-14 03:35:00,733 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2024-11-14 03:35:00,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2024-11-14 03:35:00,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2024-11-14 03:35:00,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2024-11-14 03:35:00,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2024-11-14 03:35:00,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-14 03:35:00,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-14 03:35:00,941 INFO L407 BasicCegarLoop]: Path program histogram: [5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:00,992 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:35:00,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:35:00 BoogieIcfgContainer [2024-11-14 03:35:00,995 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:35:00,996 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:35:00,996 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:35:00,997 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:35:00,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:10" (3/4) ... [2024-11-14 03:35:01,002 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:35:01,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:35:01,003 INFO L158 Benchmark]: Toolchain (without parser) took 711341.07ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 93.1MB in the beginning and 370.5MB in the end (delta: -277.4MB). Peak memory consumption was 547.1MB. Max. memory is 16.1GB. [2024-11-14 03:35:01,003 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:35:01,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.94ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:35:01,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.63ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 81.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:35:01,004 INFO L158 Benchmark]: Boogie Preprocessor took 20.84ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 81.1MB in the end (delta: 664.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:35:01,004 INFO L158 Benchmark]: RCFGBuilder took 513.21ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 68.9MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:35:01,004 INFO L158 Benchmark]: TraceAbstraction took 710508.45ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 68.5MB in the beginning and 370.5MB in the end (delta: -301.9MB). Peak memory consumption was 521.9MB. Max. memory is 16.1GB. [2024-11-14 03:35:01,004 INFO L158 Benchmark]: Witness Printer took 6.38ms. Allocated memory is still 939.5MB. Free memory is still 370.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:35:01,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.94ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.63ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 81.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.84ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 81.1MB in the end (delta: 664.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 513.21ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 68.9MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 710508.45ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 68.5MB in the beginning and 370.5MB in the end (delta: -301.9MB). Peak memory consumption was 521.9MB. Max. memory is 16.1GB. * Witness Printer took 6.38ms. Allocated memory is still 939.5MB. Free memory is still 370.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L25] int a, n, x, y, z; [L26] a = __VERIFIER_nondet_int() [L27] n = 0 [L28] x = 0 [L29] y = 1 [L30] z = 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] EXPR z*z [L32] EXPR 12*y [L32] EXPR (z*z) - 12*y [L32] EXPR 6*z [L32] EXPR (z*z) - 12*y - 6*z [L32] EXPR (z*z) - 12*y - 6*z + 12 [L32] COND TRUE (z*z) - 12*y - 6*z + 12 == 0 [L40] EXPR n + 1 [L40] n = n + 1 [L41] EXPR x + y [L41] x = x + y [L42] EXPR y + z [L42] y = y + z [L43] EXPR z + 6 [L43] z = z + 6 [L32] z*z - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 32]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 710.4s, OverallIterations: 29, TraceHistogramMax: 47, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 266.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26721 SdHoareTripleChecker+Valid, 21.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26721 mSDsluCounter, 7978 SdHoareTripleChecker+Invalid, 18.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7315 mSDsCounter, 3523 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21277 IncrementalHoareTripleChecker+Invalid, 24800 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3523 mSolverCounterUnsat, 663 mSDtfsCounter, 21277 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10214 GetRequests, 7549 SyntacticMatches, 1187 SemanticMatches, 1478 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327483 ImplicationChecksByTransitivity, 432.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1512occurred in iteration=28, InterpolantAutomatonStates: 803, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 28 MinimizatonAttempts, 150 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 31.0s SatisfiabilityAnalysisTime, 263.7s InterpolantComputationTime, 8439 NumberOfCodeBlocks, 7998 NumberOfCodeBlocksAsserted, 125 NumberOfCheckSat, 9742 ConstructedInterpolants, 25 QuantifiedInterpolants, 68899 SizeOfPredicates, 14 NumberOfNonLiveVariables, 5461 ConjunctsInSsa, 467 ConjunctsInUnsatCore, 58 InterpolantComputations, 12 PerfectInterpolantSequences, 18931/104217 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.6s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 25, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 98, TOOLS_POST_TIME: 0.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 98, TOOLS_QUANTIFIERELIM_TIME: 0.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 129, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 7, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 25, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 673, DAG_COMPRESSION_RETAINED_NODES: 85, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/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_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-nla/cohencu5-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/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 c93857281b5ec9fe14e30b99b222d261f13b497e3b825785e60f15b99c5a5215 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:35:03,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:35:03,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2024-11-14 03:35:03,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:35:03,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:35:03,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:35:03,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:35:03,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:35:03,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:35:03,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:35:03,901 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:35:03,901 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:35:03,901 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:35:03,901 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:35:03,902 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:35:03,902 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:35:03,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:35:03,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:35:03,902 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:35:03,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:35:03,903 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:35:03,904 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:35:03,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:35:03,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:35:03,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:35:03,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:35:03,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:35:03,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:35:03,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:35:03,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:35:03,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:35:03,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:35:03,907 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:35:03,908 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:35:03,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:35:03,908 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:35:03,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a7937c62-47bb-4314-808d-ecac17edf6f9/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 -> c93857281b5ec9fe14e30b99b222d261f13b497e3b825785e60f15b99c5a5215 [2024-11-14 03:35:04,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:35:04,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:35:04,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:35:04,289 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:35:04,290 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:35:04,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-nla/cohencu5-both-nt.c Unable to find full path for "g++" [2024-11-14 03:35:06,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:35:06,570 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:35:06,571 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/sv-benchmarks/c/termination-nla/cohencu5-both-nt.c [2024-11-14 03:35:06,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/data/fdc0254bf/b5ac6f255d8341d3a8f6ec86c229bfc4/FLAGd35601486 [2024-11-14 03:35:06,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/data/fdc0254bf/b5ac6f255d8341d3a8f6ec86c229bfc4 [2024-11-14 03:35:06,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:35:06,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:35:06,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:35:06,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:35:06,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:35:06,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:35:06" (1/1) ... [2024-11-14 03:35:06,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64491ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:06, skipping insertion in model container [2024-11-14 03:35:06,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:35:06" (1/1) ... [2024-11-14 03:35:06,929 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:35:07,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:35:07,125 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:35:07,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:35:07,166 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:35:07,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07 WrapperNode [2024-11-14 03:35:07,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:35:07,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:35:07,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:35:07,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:35:07,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,208 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-11-14 03:35:07,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:35:07,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:35:07,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:35:07,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:35:07,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:35:07,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:35:07,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:35:07,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:35:07,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (1/1) ... [2024-11-14 03:35:07,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:35:07,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:35:07,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:35:07,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:35:07,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:35:07,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:35:07,361 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:35:07,363 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:35:09,810 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-14 03:35:09,810 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:35:09,822 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:35:09,822 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:35:09,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:35:09 BoogieIcfgContainer [2024-11-14 03:35:09,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:35:09,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:35:09,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:35:09,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:35:09,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:35:06" (1/3) ... [2024-11-14 03:35:09,833 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f482f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:35:09, skipping insertion in model container [2024-11-14 03:35:09,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:35:07" (2/3) ... [2024-11-14 03:35:09,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f482f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:35:09, skipping insertion in model container [2024-11-14 03:35:09,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:35:09" (3/3) ... [2024-11-14 03:35:09,836 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu5-both-nt.c [2024-11-14 03:35:09,854 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:35:09,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG cohencu5-both-nt.c that has 1 procedures, 47 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2024-11-14 03:35:09,919 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:35:09,932 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;@7f443a79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:35:09,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-14 03:35:09,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 46 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 03:35:09,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:35:09,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:09,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:35:09,944 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:35:09,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2024-11-14 03:35:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:09,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864112294] [2024-11-14 03:35:09,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:09,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:09,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:09,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:35:09,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:35:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:10,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:35:10,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:10,100 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 03:35:10,101 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:10,102 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:35:10,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864112294] [2024-11-14 03:35:10,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864112294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:10,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:10,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:35:10,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407720486] [2024-11-14 03:35:10,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:10,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:35:10,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:35:10,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:35:10,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:35:10,142 INFO L87 Difference]: Start difference. First operand has 47 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 46 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:12,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:13,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:13,647 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2024-11-14 03:35:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:35:13,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-14 03:35:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:13,657 INFO L225 Difference]: With dead ends: 85 [2024-11-14 03:35:13,658 INFO L226 Difference]: Without dead ends: 66 [2024-11-14 03:35:13,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:35:13,663 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 25 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:13,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 38 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 03:35:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-14 03:35:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 61. [2024-11-14 03:35:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.5909090909090908) internal successors, (70), 60 states have internal predecessors, (70), 0 states have call successors, (0), 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 03:35:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2024-11-14 03:35:13,712 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 3 [2024-11-14 03:35:13,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:13,712 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2024-11-14 03:35:13,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:13,713 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2024-11-14 03:35:13,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 03:35:13,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:13,714 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 03:35:13,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 03:35:13,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:13,915 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:35:13,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:13,916 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2024-11-14 03:35:13,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:13,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283170317] [2024-11-14 03:35:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:13,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:13,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:13,919 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:35:13,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 03:35:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:13,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:35:13,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:14,006 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 03:35:14,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:14,007 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:35:14,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283170317] [2024-11-14 03:35:14,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283170317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:14,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:14,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:35:14,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109562485] [2024-11-14 03:35:14,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:14,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:35:14,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:35:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:35:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:35:14,011 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:14,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:14,526 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2024-11-14 03:35:14,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:35:14,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 03:35:14,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:14,527 INFO L225 Difference]: With dead ends: 66 [2024-11-14 03:35:14,527 INFO L226 Difference]: Without dead ends: 62 [2024-11-14 03:35:14,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:35:14,529 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:14,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 38 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:35:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-14 03:35:14,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2024-11-14 03:35:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.5) internal successors, (66), 60 states have internal predecessors, (66), 0 states have call successors, (0), 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 03:35:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2024-11-14 03:35:14,539 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 5 [2024-11-14 03:35:14,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:14,539 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2024-11-14 03:35:14,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2024-11-14 03:35:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:35:14,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:14,542 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:14,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 03:35:14,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:14,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:35:14,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash 33363243, now seen corresponding path program 1 times [2024-11-14 03:35:14,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:14,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209528290] [2024-11-14 03:35:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:14,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:14,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:14,750 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:35:14,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:35:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:14,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:35:14,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:14,974 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 03:35:14,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:14,975 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:35:14,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209528290] [2024-11-14 03:35:14,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209528290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:14,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:14,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:35:14,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124303773] [2024-11-14 03:35:14,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:14,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:35:14,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:35:14,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:35:14,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:35:14,977 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:16,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:18,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:18,353 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2024-11-14 03:35:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:35:18,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 03:35:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:18,354 INFO L225 Difference]: With dead ends: 65 [2024-11-14 03:35:18,354 INFO L226 Difference]: Without dead ends: 62 [2024-11-14 03:35:18,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 03:35:18,356 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:18,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 26 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-14 03:35:18,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-14 03:35:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2024-11-14 03:35:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 60 states have internal predecessors, (63), 0 states have call successors, (0), 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 03:35:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2024-11-14 03:35:18,369 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 11 [2024-11-14 03:35:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:18,369 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2024-11-14 03:35:18,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:18,372 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2024-11-14 03:35:18,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:35:18,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:18,374 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 03:35:18,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 03:35:18,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:18,575 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:35:18,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:18,575 INFO L85 PathProgramCache]: Analyzing trace with hash -153167564, now seen corresponding path program 1 times [2024-11-14 03:35:18,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:18,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941577801] [2024-11-14 03:35:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:18,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:18,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:18,579 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:35:18,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 03:35:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:18,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:35:18,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:18,710 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 03:35:18,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:18,710 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:35:18,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941577801] [2024-11-14 03:35:18,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941577801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:18,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:18,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:35:18,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736900285] [2024-11-14 03:35:18,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:18,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:35:18,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:35:18,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:35:18,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:35:18,713 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 3 states, 2 states have (on average 8.5) 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 03:35:18,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:18,730 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2024-11-14 03:35:18,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:35:18,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) 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 03:35:18,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:18,731 INFO L225 Difference]: With dead ends: 62 [2024-11-14 03:35:18,732 INFO L226 Difference]: Without dead ends: 61 [2024-11-14 03:35:18,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 03:35:18,733 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:18,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:35:18,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-14 03:35:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-14 03:35:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 60 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:35:18,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2024-11-14 03:35:18,743 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 17 [2024-11-14 03:35:18,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:18,743 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2024-11-14 03:35:18,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) 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 03:35:18,744 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2024-11-14 03:35:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 03:35:18,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:18,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:18,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 03:35:18,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:18,945 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:35:18,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:18,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1165138698, now seen corresponding path program 1 times [2024-11-14 03:35:18,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:18,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257798506] [2024-11-14 03:35:18,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:18,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:18,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:18,948 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:35:18,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 03:35:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:19,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:35:19,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:19,214 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 03:35:19,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:35:19,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:35:19,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257798506] [2024-11-14 03:35:19,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257798506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:19,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:35:19,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:35:19,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258257043] [2024-11-14 03:35:19,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:19,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:35:19,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:35:19,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:35:19,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:35:19,217 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 03:35:19,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:35:19,865 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2024-11-14 03:35:19,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:35:19,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-11-14 03:35:19,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:35:19,867 INFO L225 Difference]: With dead ends: 62 [2024-11-14 03:35:19,867 INFO L226 Difference]: Without dead ends: 61 [2024-11-14 03:35:19,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 03:35:19,868 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:35:19,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:35:19,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-14 03:35:19,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-14 03:35:19,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 60 states have internal predecessors, (61), 0 states have call successors, (0), 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 03:35:19,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2024-11-14 03:35:19,882 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 19 [2024-11-14 03:35:19,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:35:19,882 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2024-11-14 03:35:19,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 03:35:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2024-11-14 03:35:19,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 03:35:19,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:35:19,886 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:35:19,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 03:35:20,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:20,087 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-14 03:35:20,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:35:20,087 INFO L85 PathProgramCache]: Analyzing trace with hash 573557483, now seen corresponding path program 1 times [2024-11-14 03:35:20,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:35:20,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335273071] [2024-11-14 03:35:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:35:20,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:35:20,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:35:20,092 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:35:20,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 03:35:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:35:20,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:35:20,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:35:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:35:20,290 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:35:24,430 WARN L873 $PredicateComparison]: unable to prove that (bvsle (_ bv9223372034707292160 63) (let ((.cse0 ((_ sign_extend 31) |c_ULTIMATE.start_main_~z~0#1|))) (bvmul .cse0 .cse0))) is different from true [2024-11-14 03:35:28,520 WARN L873 $PredicateComparison]: unable to prove that (bvsle (_ bv9223372034707292160 63) (let ((.cse0 ((_ sign_extend 31) (bvadd (_ bv6 32) |c_ULTIMATE.start_main_~z~0#1|)))) (bvmul .cse0 .cse0))) is different from true [2024-11-14 03:36:05,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-14 03:36:05,371 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:36:05,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335273071] [2024-11-14 03:36:05,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335273071] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:05,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1519352833] [2024-11-14 03:36:05,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:05,371 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:36:05,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:36:05,373 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:36:05,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-14 03:36:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:05,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:36:05,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:36:05,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-14 03:36:45,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1519352833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:45,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803290545] [2024-11-14 03:36:45,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:45,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:45,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:36:45,676 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:36:45,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7937c62-47bb-4314-808d-ecac17edf6f9/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:36:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:45,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:36:45,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:36:45,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:37:26,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2024-11-14 03:37:26,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803290545] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:37:26,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:37:26,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3, 3, 3, 3] total 5 [2024-11-14 03:37:26,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119470361] [2024-11-14 03:37:26,310 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:37:26,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:37:26,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:37:26,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:37:26,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=10, Total=30 [2024-11-14 03:37:26,311 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 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)