./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-007.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_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/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_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-007.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/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_638d08fe-f719-4ada-bb78-a2ad376e38ff/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 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:58:29,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:58:29,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 04:58:29,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:58:29,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:58:29,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:58:29,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:58:29,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:58:29,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:58:29,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:58:29,886 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:58:29,886 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:58:29,886 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:58:29,886 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:58:29,887 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:58:29,887 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:58:29,887 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:58:29,887 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:58:29,889 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:58:29,889 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:58:29,890 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:58:29,890 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:58:29,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:58:29,890 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:58:29,890 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:58:29,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:58:29,892 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:58:29,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:58:29,892 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:58:29,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:58:29,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:58:29,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:58:29,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:58:29,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:58:29,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:58:29,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:58:29,896 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:58:29,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:58:29,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:58:29,896 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:58:29,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:58:29,897 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_638d08fe-f719-4ada-bb78-a2ad376e38ff/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 -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2024-11-14 04:58:30,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:58:30,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:58:30,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:58:30,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:58:30,332 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:58:30,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/xcsp/AllInterval-007.c Unable to find full path for "g++" [2024-11-14 04:58:32,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:58:33,204 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:58:33,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/sv-benchmarks/c/xcsp/AllInterval-007.c [2024-11-14 04:58:33,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/data/96190c107/5d4c0566698d4c9cb00ccb387868a8d9/FLAG729aa62ef [2024-11-14 04:58:33,297 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/data/96190c107/5d4c0566698d4c9cb00ccb387868a8d9 [2024-11-14 04:58:33,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:58:33,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:58:33,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:58:33,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:58:33,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:58:33,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2110e8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33, skipping insertion in model container [2024-11-14 04:58:33,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:58:33,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:58:33,627 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:58:33,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:58:33,680 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:58:33,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33 WrapperNode [2024-11-14 04:58:33,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:58:33,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:58:33,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:58:33,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:58:33,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,741 INFO L138 Inliner]: procedures = 13, calls = 76, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 211 [2024-11-14 04:58:33,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:58:33,742 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:58:33,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:58:33,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:58:33,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:58:33,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:58:33,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:58:33,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:58:33,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (1/1) ... [2024-11-14 04:58:33,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:58:33,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:58:33,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:58:33,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:58:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:58:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:58:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:58:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:58:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-14 04:58:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-14 04:58:33,954 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:58:33,956 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:58:34,502 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-14 04:58:34,502 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:58:34,542 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:58:34,542 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:58:34,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:58:34 BoogieIcfgContainer [2024-11-14 04:58:34,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:58:34,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:58:34,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:58:34,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:58:34,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:58:33" (1/3) ... [2024-11-14 04:58:34,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3119a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:58:34, skipping insertion in model container [2024-11-14 04:58:34,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:58:33" (2/3) ... [2024-11-14 04:58:34,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3119a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:58:34, skipping insertion in model container [2024-11-14 04:58:34,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:58:34" (3/3) ... [2024-11-14 04:58:34,556 INFO L112 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2024-11-14 04:58:34,576 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:58:34,578 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG AllInterval-007.c that has 2 procedures, 147 locations, 1 initial locations, 0 loop locations, and 24 error locations. [2024-11-14 04:58:34,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:58:34,681 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;@4ff9f77c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:58:34,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-14 04:58:34,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 77 states have internal predecessors, (83), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-14 04:58:34,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-14 04:58:34,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:58:34,715 INFO L215 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:58:34,716 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:58:34,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:58:34,722 INFO L85 PathProgramCache]: Analyzing trace with hash 154720438, now seen corresponding path program 1 times [2024-11-14 04:58:34,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:58:34,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541950518] [2024-11-14 04:58:34,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:34,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:58:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:36,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2024-11-14 04:58:36,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:58:36,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541950518] [2024-11-14 04:58:36,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541950518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:58:36,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388543979] [2024-11-14 04:58:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:58:36,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:58:36,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:58:36,165 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:58:36,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:58:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:58:36,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:58:36,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:58:37,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2024-11-14 04:58:37,432 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:58:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2024-11-14 04:58:38,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388543979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:58:38,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1284873462] [2024-11-14 04:58:38,266 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2024-11-14 04:58:38,267 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:58:38,271 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:58:38,278 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:58:38,278 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:58:51,779 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:58:51,786 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:59:26,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1284873462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:59:26,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:59:26,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [4, 4, 4] total 84 [2024-11-14 04:59:26,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28911595] [2024-11-14 04:59:26,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:59:26,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2024-11-14 04:59:26,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:59:26,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2024-11-14 04:59:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3389, Invalid=3751, Unknown=0, NotChecked=0, Total=7140 [2024-11-14 04:59:26,413 INFO L87 Difference]: Start difference. First operand has 147 states, 53 states have (on average 1.5660377358490567) internal successors, (83), 77 states have internal predecessors, (83), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 79 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 04:59:28,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:59:28,169 INFO L93 Difference]: Finished difference Result 147 states and 219 transitions. [2024-11-14 04:59:28,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-14 04:59:28,173 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 202 [2024-11-14 04:59:28,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:59:28,186 INFO L225 Difference]: With dead ends: 147 [2024-11-14 04:59:28,187 INFO L226 Difference]: Without dead ends: 141 [2024-11-14 04:59:28,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 524 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 34.6s TimeCoverageRelationStatistics Valid=3389, Invalid=3751, Unknown=0, NotChecked=0, Total=7140 [2024-11-14 04:59:28,199 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 75 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:59:28,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 401 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 04:59:28,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-14 04:59:28,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-14 04:59:28,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 72 states have internal predecessors, (77), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-14 04:59:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 211 transitions. [2024-11-14 04:59:28,358 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 211 transitions. Word has length 202 [2024-11-14 04:59:28,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:59:28,362 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 211 transitions. [2024-11-14 04:59:28,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 16 states have (on average 1.0625) internal successors, (17), 17 states have internal predecessors, (17), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 04:59:28,363 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 211 transitions. [2024-11-14 04:59:28,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-14 04:59:28,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:59:28,374 INFO L215 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:59:28,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:59:28,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:59:28,576 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:59:28,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:59:28,577 INFO L85 PathProgramCache]: Analyzing trace with hash 776771228, now seen corresponding path program 1 times [2024-11-14 04:59:28,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:59:28,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570591684] [2024-11-14 04:59:28,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:59:28,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:59:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:59:28,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3782 trivial. 0 not checked. [2024-11-14 04:59:28,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:59:28,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570591684] [2024-11-14 04:59:28,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570591684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:59:28,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:59:28,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:59:28,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377465712] [2024-11-14 04:59:28,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:59:28,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:59:28,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:59:28,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:59:28,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:59:28,860 INFO L87 Difference]: Start difference. First operand 141 states and 211 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2024-11-14 04:59:29,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:59:29,043 INFO L93 Difference]: Finished difference Result 141 states and 211 transitions. [2024-11-14 04:59:29,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:59:29,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) Word has length 205 [2024-11-14 04:59:29,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:59:29,049 INFO L225 Difference]: With dead ends: 141 [2024-11-14 04:59:29,050 INFO L226 Difference]: Without dead ends: 135 [2024-11-14 04:59:29,050 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 04:59:29,051 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 6 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:59:29,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 349 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:59:29,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-14 04:59:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-14 04:59:29,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 51 states have (on average 1.392156862745098) internal successors, (71), 66 states have internal predecessors, (71), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-14 04:59:29,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 205 transitions. [2024-11-14 04:59:29,136 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 205 transitions. Word has length 205 [2024-11-14 04:59:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:59:29,140 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 205 transitions. [2024-11-14 04:59:29,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 1 states have call predecessors, (62), 1 states have call successors, (62) [2024-11-14 04:59:29,140 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 205 transitions. [2024-11-14 04:59:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-14 04:59:29,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:59:29,149 INFO L215 NwaCegarLoop]: trace histogram [62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:59:29,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:59:29,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 04:59:29,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:59:29,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1689895587, now seen corresponding path program 1 times [2024-11-14 04:59:29,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:59:29,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119566770] [2024-11-14 04:59:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:59:29,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:59:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:59:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2024-11-14 04:59:29,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:59:29,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119566770] [2024-11-14 04:59:29,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119566770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:59:29,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375357745] [2024-11-14 04:59:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:59:29,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:59:29,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:59:29,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:59:29,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:59:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:59:29,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 04:59:29,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:59:30,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2024-11-14 04:59:30,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:59:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 3721 trivial. 0 not checked. [2024-11-14 04:59:30,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375357745] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:59:30,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2024568363] [2024-11-14 04:59:30,773 INFO L159 IcfgInterpreter]: Started Sifa with 85 locations of interest [2024-11-14 04:59:30,773 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:59:30,774 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:59:30,774 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:59:30,774 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:59:39,906 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 04:59:39,907 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:00:12,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2024568363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:00:12,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:00:12,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [79] imperfect sequences [5, 5, 5] total 85 [2024-11-14 05:00:12,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024752112] [2024-11-14 05:00:12,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:00:12,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2024-11-14 05:00:12,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:00:12,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2024-11-14 05:00:12,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3246, Invalid=4064, Unknown=0, NotChecked=0, Total=7310 [2024-11-14 05:00:12,893 INFO L87 Difference]: Start difference. First operand 135 states and 205 transitions. Second operand has 81 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 05:00:15,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:00:15,716 INFO L93 Difference]: Finished difference Result 135 states and 205 transitions. [2024-11-14 05:00:15,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-11-14 05:00:15,717 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 206 [2024-11-14 05:00:15,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:00:15,720 INFO L225 Difference]: With dead ends: 135 [2024-11-14 05:00:15,720 INFO L226 Difference]: Without dead ends: 134 [2024-11-14 05:00:15,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 534 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=3246, Invalid=4064, Unknown=0, NotChecked=0, Total=7310 [2024-11-14 05:00:15,727 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 55 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:00:15,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 390 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-14 05:00:15,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-14 05:00:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-14 05:00:15,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 65 states have internal predecessors, (70), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-14 05:00:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 204 transitions. [2024-11-14 05:00:15,792 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 204 transitions. Word has length 206 [2024-11-14 05:00:15,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:00:15,793 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 204 transitions. [2024-11-14 05:00:15,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 05:00:15,794 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 204 transitions. [2024-11-14 05:00:15,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-14 05:00:15,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:15,797 INFO L215 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:15,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:00:15,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:15,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:00:15,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:15,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1880618490, now seen corresponding path program 1 times [2024-11-14 05:00:15,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:15,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533898638] [2024-11-14 05:00:15,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:15,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:00:16,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:00:16,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533898638] [2024-11-14 05:00:16,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533898638] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:00:16,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030531710] [2024-11-14 05:00:16,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:16,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:00:16,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:16,423 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:00:16,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:00:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:00:16,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:00:16,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:00:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:00:16,931 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:00:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:00:17,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030531710] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:00:17,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [936970715] [2024-11-14 05:00:17,393 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2024-11-14 05:00:17,393 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:00:17,393 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:00:17,393 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:00:17,394 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:00:24,336 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:00:24,340 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:01:00,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [936970715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:00,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:01:00,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [81] imperfect sequences [4, 4, 4] total 88 [2024-11-14 05:01:00,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425351554] [2024-11-14 05:01:00,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:00,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-11-14 05:01:00,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:00,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-11-14 05:01:00,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3411, Invalid=4421, Unknown=0, NotChecked=0, Total=7832 [2024-11-14 05:01:00,072 INFO L87 Difference]: Start difference. First operand 134 states and 204 transitions. Second operand has 83 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 05:01:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:03,395 INFO L93 Difference]: Finished difference Result 140 states and 211 transitions. [2024-11-14 05:01:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-11-14 05:01:03,396 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 209 [2024-11-14 05:01:03,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:03,398 INFO L225 Difference]: With dead ends: 140 [2024-11-14 05:01:03,398 INFO L226 Difference]: Without dead ends: 138 [2024-11-14 05:01:03,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 540 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 35.7s TimeCoverageRelationStatistics Valid=3411, Invalid=4421, Unknown=0, NotChecked=0, Total=7832 [2024-11-14 05:01:03,402 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 60 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:03,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 361 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 05:01:03,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-14 05:01:03,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-14 05:01:03,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 68 states have internal predecessors, (73), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-14 05:01:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 209 transitions. [2024-11-14 05:01:03,469 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 209 transitions. Word has length 209 [2024-11-14 05:01:03,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:03,470 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 209 transitions. [2024-11-14 05:01:03,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 05:01:03,470 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 209 transitions. [2024-11-14 05:01:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-14 05:01:03,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:03,474 INFO L215 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:01:03,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:01:03,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:03,675 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:01:03,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1043415126, now seen corresponding path program 1 times [2024-11-14 05:01:03,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:03,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875518764] [2024-11-14 05:01:03,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:01:04,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:04,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875518764] [2024-11-14 05:01:04,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875518764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:01:04,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084068249] [2024-11-14 05:01:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:04,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:04,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:04,112 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:04,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:01:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:04,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:01:04,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:01:04,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:01:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:01:05,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084068249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:01:05,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [409532117] [2024-11-14 05:01:05,242 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2024-11-14 05:01:05,242 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:01:05,243 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:01:05,243 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:01:05,245 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:01:12,280 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:01:12,281 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:01:49,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [409532117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:01:49,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:01:49,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [6, 6, 6] total 95 [2024-11-14 05:01:49,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898924998] [2024-11-14 05:01:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:01:49,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2024-11-14 05:01:49,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:01:49,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2024-11-14 05:01:49,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3652, Invalid=5468, Unknown=0, NotChecked=0, Total=9120 [2024-11-14 05:01:49,597 INFO L87 Difference]: Start difference. First operand 138 states and 209 transitions. Second operand has 84 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 05:01:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:01:53,700 INFO L93 Difference]: Finished difference Result 138 states and 209 transitions. [2024-11-14 05:01:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2024-11-14 05:01:53,701 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 211 [2024-11-14 05:01:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:01:53,704 INFO L225 Difference]: With dead ends: 138 [2024-11-14 05:01:53,704 INFO L226 Difference]: Without dead ends: 136 [2024-11-14 05:01:53,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 541 SyntacticMatches, 2 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1378 ImplicationChecksByTransitivity, 37.4s TimeCoverageRelationStatistics Valid=3652, Invalid=5468, Unknown=0, NotChecked=0, Total=9120 [2024-11-14 05:01:53,708 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 54 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:01:53,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 473 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-14 05:01:53,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-14 05:01:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 132. [2024-11-14 05:01:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 63 states have internal predecessors, (68), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-14 05:01:53,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 202 transitions. [2024-11-14 05:01:53,773 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 202 transitions. Word has length 211 [2024-11-14 05:01:53,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:01:53,778 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 202 transitions. [2024-11-14 05:01:53,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 05:01:53,779 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 202 transitions. [2024-11-14 05:01:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-14 05:01:53,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:01:53,787 INFO L215 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:01:53,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:01:53,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:53,987 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:01:53,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:01:53,988 INFO L85 PathProgramCache]: Analyzing trace with hash 387226785, now seen corresponding path program 1 times [2024-11-14 05:01:53,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:01:53,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196110300] [2024-11-14 05:01:53,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:53,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:01:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:54,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 6 proven. 116 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-14 05:01:54,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:01:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196110300] [2024-11-14 05:01:54,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196110300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:01:54,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351715670] [2024-11-14 05:01:54,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:01:54,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:01:54,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:01:54,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:01:54,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:01:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:01:54,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:01:54,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:01:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:01:54,967 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:01:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 2 proven. 60 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:01:55,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351715670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:01:55,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [528783720] [2024-11-14 05:01:55,455 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2024-11-14 05:01:55,455 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:01:55,456 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:01:55,456 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:01:55,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:02:02,722 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:02:02,723 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:02:42,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [528783720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:02:42,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:02:42,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [83] imperfect sequences [5, 5, 5] total 91 [2024-11-14 05:02:42,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751784554] [2024-11-14 05:02:42,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:02:42,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2024-11-14 05:02:42,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:02:42,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2024-11-14 05:02:42,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3349, Invalid=5023, Unknown=0, NotChecked=0, Total=8372 [2024-11-14 05:02:42,141 INFO L87 Difference]: Start difference. First operand 132 states and 202 transitions. Second operand has 85 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 05:02:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:02:46,113 INFO L93 Difference]: Finished difference Result 140 states and 212 transitions. [2024-11-14 05:02:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-11-14 05:02:46,114 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 213 [2024-11-14 05:02:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:02:46,117 INFO L225 Difference]: With dead ends: 140 [2024-11-14 05:02:46,117 INFO L226 Difference]: Without dead ends: 139 [2024-11-14 05:02:46,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 550 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1030 ImplicationChecksByTransitivity, 39.4s TimeCoverageRelationStatistics Valid=3349, Invalid=5023, Unknown=0, NotChecked=0, Total=8372 [2024-11-14 05:02:46,120 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 56 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:02:46,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 375 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1718 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-14 05:02:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-14 05:02:46,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-14 05:02:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 69 states have internal predecessors, (75), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-14 05:02:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 211 transitions. [2024-11-14 05:02:46,175 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 211 transitions. Word has length 213 [2024-11-14 05:02:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:02:46,176 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 211 transitions. [2024-11-14 05:02:46,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 05:02:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 211 transitions. [2024-11-14 05:02:46,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-14 05:02:46,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:02:46,181 INFO L215 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:02:46,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:02:46,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:02:46,382 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:02:46,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:02:46,383 INFO L85 PathProgramCache]: Analyzing trace with hash -456015022, now seen corresponding path program 1 times [2024-11-14 05:02:46,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:02:46,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764658094] [2024-11-14 05:02:46,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:46,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:02:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:46,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:02:46,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:02:46,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764658094] [2024-11-14 05:02:46,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764658094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:02:46,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561666324] [2024-11-14 05:02:46,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:02:46,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:02:46,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:02:46,707 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:02:46,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:02:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:02:46,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:02:46,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:02:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:02:47,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:02:47,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:02:47,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561666324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:02:47,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1856624209] [2024-11-14 05:02:47,653 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2024-11-14 05:02:47,654 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:02:47,654 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:02:47,654 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:02:47,654 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:02:55,602 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:02:55,603 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:03:37,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1856624209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:03:37,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:03:37,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [85] imperfect sequences [4, 4, 4] total 92 [2024-11-14 05:03:37,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092590439] [2024-11-14 05:03:37,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:03:37,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2024-11-14 05:03:37,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:03:37,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2024-11-14 05:03:37,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3431, Invalid=5125, Unknown=0, NotChecked=0, Total=8556 [2024-11-14 05:03:37,519 INFO L87 Difference]: Start difference. First operand 139 states and 211 transitions. Second operand has 87 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:03:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:03:42,906 INFO L93 Difference]: Finished difference Result 145 states and 218 transitions. [2024-11-14 05:03:42,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-11-14 05:03:42,907 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 216 [2024-11-14 05:03:42,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:03:42,909 INFO L225 Difference]: With dead ends: 145 [2024-11-14 05:03:42,909 INFO L226 Difference]: Without dead ends: 143 [2024-11-14 05:03:42,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 556 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 41.9s TimeCoverageRelationStatistics Valid=3431, Invalid=5125, Unknown=0, NotChecked=0, Total=8556 [2024-11-14 05:03:42,913 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 60 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:03:42,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 338 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-14 05:03:42,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-14 05:03:42,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-14 05:03:42,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 60 states have (on average 1.3) internal successors, (78), 72 states have internal predecessors, (78), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-14 05:03:42,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 216 transitions. [2024-11-14 05:03:42,964 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 216 transitions. Word has length 216 [2024-11-14 05:03:42,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:03:42,964 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 216 transitions. [2024-11-14 05:03:42,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:03:42,965 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 216 transitions. [2024-11-14 05:03:42,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-14 05:03:42,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:03:42,967 INFO L215 NwaCegarLoop]: trace histogram [63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:03:42,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-14 05:03:43,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:03:43,168 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:03:43,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:03:43,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1216960765, now seen corresponding path program 1 times [2024-11-14 05:03:43,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:03:43,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566595521] [2024-11-14 05:03:43,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:03:43,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:03:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:03:43,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 6 proven. 116 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2024-11-14 05:03:43,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:03:43,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566595521] [2024-11-14 05:03:43,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566595521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:03:43,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018180841] [2024-11-14 05:03:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:03:43,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:03:43,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:03:43,558 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:03:43,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 05:03:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:03:43,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:03:43,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:03:44,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:03:44,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:03:44,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 3844 trivial. 0 not checked. [2024-11-14 05:03:44,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018180841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:03:44,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [403882936] [2024-11-14 05:03:44,752 INFO L159 IcfgInterpreter]: Started Sifa with 92 locations of interest [2024-11-14 05:03:44,752 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:03:44,753 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:03:44,753 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:03:44,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:03:51,951 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:03:51,953 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:04:34,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [403882936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:04:34,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:04:34,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [5, 7, 7] total 99 [2024-11-14 05:04:34,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381342799] [2024-11-14 05:04:34,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:04:34,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2024-11-14 05:04:34,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:04:34,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2024-11-14 05:04:34,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3681, Invalid=6219, Unknown=0, NotChecked=0, Total=9900 [2024-11-14 05:04:34,183 INFO L87 Difference]: Start difference. First operand 143 states and 216 transitions. Second operand has 86 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 05:04:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:04:40,954 INFO L93 Difference]: Finished difference Result 143 states and 216 transitions. [2024-11-14 05:04:40,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-11-14 05:04:40,956 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 215 [2024-11-14 05:04:40,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:04:40,957 INFO L225 Difference]: With dead ends: 143 [2024-11-14 05:04:40,957 INFO L226 Difference]: Without dead ends: 142 [2024-11-14 05:04:40,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 549 SyntacticMatches, 2 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1720 ImplicationChecksByTransitivity, 42.4s TimeCoverageRelationStatistics Valid=3681, Invalid=6219, Unknown=0, NotChecked=0, Total=9900 [2024-11-14 05:04:40,961 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 53 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:04:40,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 375 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-14 05:04:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-14 05:04:41,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2024-11-14 05:04:41,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 58 states have (on average 1.293103448275862) internal successors, (75), 69 states have internal predecessors, (75), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-14 05:04:41,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 213 transitions. [2024-11-14 05:04:41,037 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 213 transitions. Word has length 215 [2024-11-14 05:04:41,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:04:41,039 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 213 transitions. [2024-11-14 05:04:41,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 05:04:41,040 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 213 transitions. [2024-11-14 05:04:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-14 05:04:41,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:04:41,043 INFO L215 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:04:41,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-14 05:04:41,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 05:04:41,247 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:04:41,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:04:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2072892242, now seen corresponding path program 1 times [2024-11-14 05:04:41,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:04:41,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720683335] [2024-11-14 05:04:41,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:04:41,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:04:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:04:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:04:41,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:04:41,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720683335] [2024-11-14 05:04:41,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720683335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:04:41,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609640509] [2024-11-14 05:04:41,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:04:41,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:04:41,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:04:41,687 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:04:41,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 05:04:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:04:41,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:04:41,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:04:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:04:42,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:04:43,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:04:43,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609640509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:04:43,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [394868969] [2024-11-14 05:04:43,079 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2024-11-14 05:04:43,079 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:04:43,080 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:04:43,080 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:04:43,080 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:04:50,874 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:04:50,875 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:05:37,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [394868969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:05:37,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:05:37,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [6, 6, 6] total 99 [2024-11-14 05:05:37,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449845595] [2024-11-14 05:05:37,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:05:37,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-11-14 05:05:37,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:05:37,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-11-14 05:05:37,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3680, Invalid=6220, Unknown=0, NotChecked=0, Total=9900 [2024-11-14 05:05:37,482 INFO L87 Difference]: Start difference. First operand 140 states and 213 transitions. Second operand has 88 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:05:43,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:05:43,669 INFO L93 Difference]: Finished difference Result 148 states and 222 transitions. [2024-11-14 05:05:43,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-14 05:05:43,670 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 218 [2024-11-14 05:05:43,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:05:43,673 INFO L225 Difference]: With dead ends: 148 [2024-11-14 05:05:43,673 INFO L226 Difference]: Without dead ends: 146 [2024-11-14 05:05:43,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 557 SyntacticMatches, 3 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1817 ImplicationChecksByTransitivity, 46.7s TimeCoverageRelationStatistics Valid=3680, Invalid=6220, Unknown=0, NotChecked=0, Total=9900 [2024-11-14 05:05:43,675 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 56 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:05:43,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 617 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-14 05:05:43,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-14 05:05:43,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2024-11-14 05:05:43,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 71 states have internal predecessors, (77), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-14 05:05:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 215 transitions. [2024-11-14 05:05:43,725 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 215 transitions. Word has length 218 [2024-11-14 05:05:43,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:05:43,726 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 215 transitions. [2024-11-14 05:05:43,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:05:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 215 transitions. [2024-11-14 05:05:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-14 05:05:43,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:05:43,730 INFO L215 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:05:43,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 05:05:43,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:05:43,934 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:05:43,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:05:43,934 INFO L85 PathProgramCache]: Analyzing trace with hash 612194678, now seen corresponding path program 1 times [2024-11-14 05:05:43,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:05:43,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961571688] [2024-11-14 05:05:43,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:43,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:05:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:05:44,222 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:05:44,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:05:44,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961571688] [2024-11-14 05:05:44,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961571688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:05:44,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704221007] [2024-11-14 05:05:44,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:44,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:05:44,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:05:44,226 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:05:44,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 05:05:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:05:44,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:05:44,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:05:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:05:44,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:05:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:05:45,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704221007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:05:45,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1926377205] [2024-11-14 05:05:45,235 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2024-11-14 05:05:45,235 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:05:45,236 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:05:45,236 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:05:45,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:05:52,676 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:05:52,677 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:06:38,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1926377205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:06:38,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:06:38,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [4, 4, 4] total 93 [2024-11-14 05:06:38,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918770092] [2024-11-14 05:06:38,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:06:38,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-11-14 05:06:38,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:06:38,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-11-14 05:06:38,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3438, Invalid=5304, Unknown=0, NotChecked=0, Total=8742 [2024-11-14 05:06:38,186 INFO L87 Difference]: Start difference. First operand 142 states and 215 transitions. Second operand has 88 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:06:45,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:06:45,793 INFO L93 Difference]: Finished difference Result 148 states and 222 transitions. [2024-11-14 05:06:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2024-11-14 05:06:45,794 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 218 [2024-11-14 05:06:45,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:06:45,796 INFO L225 Difference]: With dead ends: 148 [2024-11-14 05:06:45,796 INFO L226 Difference]: Without dead ends: 146 [2024-11-14 05:06:45,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 561 SyntacticMatches, 3 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 45.5s TimeCoverageRelationStatistics Valid=3438, Invalid=5304, Unknown=0, NotChecked=0, Total=8742 [2024-11-14 05:06:45,799 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 57 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 2764 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 2765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:06:45,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 383 Invalid, 2765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2764 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-11-14 05:06:45,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-14 05:06:45,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2024-11-14 05:06:45,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 71 states have internal predecessors, (77), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-14 05:06:45,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 215 transitions. [2024-11-14 05:06:45,868 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 215 transitions. Word has length 218 [2024-11-14 05:06:45,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:06:45,869 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 215 transitions. [2024-11-14 05:06:45,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:06:45,870 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 215 transitions. [2024-11-14 05:06:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-14 05:06:45,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:06:45,872 INFO L215 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:06:45,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-14 05:06:46,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 05:06:46,073 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:06:46,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:06:46,074 INFO L85 PathProgramCache]: Analyzing trace with hash -721452551, now seen corresponding path program 1 times [2024-11-14 05:06:46,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:06:46,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286018138] [2024-11-14 05:06:46,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:06:46,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:06:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:06:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 10 proven. 114 refuted. 0 times theorem prover too weak. 3908 trivial. 0 not checked. [2024-11-14 05:06:46,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:06:46,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286018138] [2024-11-14 05:06:46,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286018138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:06:46,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109374888] [2024-11-14 05:06:46,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:06:46,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:06:46,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:06:46,446 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:06:46,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 05:06:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:06:46,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:06:46,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:06:46,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:06:46,960 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:06:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:06:47,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109374888] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:06:47,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2132422080] [2024-11-14 05:06:47,379 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2024-11-14 05:06:47,379 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:06:47,380 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:06:47,380 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:06:47,380 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:06:54,501 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:06:54,502 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:07:43,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2132422080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:07:43,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:07:43,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [87] imperfect sequences [5, 5, 5] total 95 [2024-11-14 05:07:43,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364116221] [2024-11-14 05:07:43,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:07:43,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2024-11-14 05:07:43,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:07:43,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2024-11-14 05:07:43,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3374, Invalid=5746, Unknown=0, NotChecked=0, Total=9120 [2024-11-14 05:07:43,349 INFO L87 Difference]: Start difference. First operand 142 states and 215 transitions. Second operand has 89 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:07:50,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:07:50,247 INFO L93 Difference]: Finished difference Result 150 states and 225 transitions. [2024-11-14 05:07:50,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-11-14 05:07:50,248 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 220 [2024-11-14 05:07:50,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:07:50,249 INFO L225 Difference]: With dead ends: 150 [2024-11-14 05:07:50,250 INFO L226 Difference]: Without dead ends: 149 [2024-11-14 05:07:50,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 566 SyntacticMatches, 4 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1449 ImplicationChecksByTransitivity, 48.9s TimeCoverageRelationStatistics Valid=3374, Invalid=5746, Unknown=0, NotChecked=0, Total=9120 [2024-11-14 05:07:50,252 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 62 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:07:50,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 288 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-14 05:07:50,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-14 05:07:50,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-14 05:07:50,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 77 states have internal predecessors, (84), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-14 05:07:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2024-11-14 05:07:50,316 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 224 transitions. Word has length 220 [2024-11-14 05:07:50,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:07:50,317 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 224 transitions. [2024-11-14 05:07:50,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 27 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:07:50,317 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 224 transitions. [2024-11-14 05:07:50,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-14 05:07:50,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:07:50,319 INFO L215 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:07:50,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 05:07:50,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 05:07:50,520 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:07:50,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:07:50,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2020554286, now seen corresponding path program 1 times [2024-11-14 05:07:50,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:07:50,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113069502] [2024-11-14 05:07:50,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:50,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:07:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:07:50,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:07:50,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:07:50,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113069502] [2024-11-14 05:07:50,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113069502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:07:50,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513702174] [2024-11-14 05:07:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:07:50,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:07:50,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:07:50,972 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:07:50,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:07:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:07:51,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:07:51,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:07:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:07:51,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:07:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:07:52,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513702174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:07:52,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1128053875] [2024-11-14 05:07:52,219 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2024-11-14 05:07:52,219 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:07:52,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:07:52,220 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:07:52,221 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:07:59,952 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:07:59,954 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:08:49,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1128053875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:08:49,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:08:49,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [87] imperfect sequences [8, 6, 6] total 103 [2024-11-14 05:08:49,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422767959] [2024-11-14 05:08:49,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:08:49,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2024-11-14 05:08:49,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:08:49,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2024-11-14 05:08:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3835, Invalid=6877, Unknown=0, NotChecked=0, Total=10712 [2024-11-14 05:08:49,495 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. Second operand has 89 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:08:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:08:56,235 INFO L93 Difference]: Finished difference Result 149 states and 224 transitions. [2024-11-14 05:08:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2024-11-14 05:08:56,237 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 220 [2024-11-14 05:08:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:08:56,239 INFO L225 Difference]: With dead ends: 149 [2024-11-14 05:08:56,239 INFO L226 Difference]: Without dead ends: 147 [2024-11-14 05:08:56,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 561 SyntacticMatches, 3 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1806 ImplicationChecksByTransitivity, 49.7s TimeCoverageRelationStatistics Valid=3835, Invalid=6877, Unknown=0, NotChecked=0, Total=10712 [2024-11-14 05:08:56,241 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 52 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:08:56,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 368 Invalid, 2359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2358 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-14 05:08:56,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-14 05:08:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2024-11-14 05:08:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 70 states have internal predecessors, (77), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-14 05:08:56,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 215 transitions. [2024-11-14 05:08:56,311 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 215 transitions. Word has length 220 [2024-11-14 05:08:56,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:08:56,312 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 215 transitions. [2024-11-14 05:08:56,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:08:56,313 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 215 transitions. [2024-11-14 05:08:56,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-14 05:08:56,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:08:56,315 INFO L215 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:08:56,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 05:08:56,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:56,516 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:08:56,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:08:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash -824024554, now seen corresponding path program 1 times [2024-11-14 05:08:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:08:56,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337821440] [2024-11-14 05:08:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:56,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:08:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2024-11-14 05:08:56,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:08:56,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337821440] [2024-11-14 05:08:56,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337821440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:08:56,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380874296] [2024-11-14 05:08:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:08:56,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:08:56,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:08:56,956 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:08:56,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 05:08:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:08:57,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:08:57,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:08:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2024-11-14 05:08:57,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:08:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 6 proven. 58 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2024-11-14 05:08:57,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380874296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:08:57,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1376804859] [2024-11-14 05:08:57,945 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2024-11-14 05:08:57,946 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:08:57,946 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:08:57,946 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:08:57,946 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:09:05,710 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:09:05,711 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:09:50,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1376804859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:09:50,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:09:50,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [4, 4, 4] total 96 [2024-11-14 05:09:50,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054957471] [2024-11-14 05:09:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:09:50,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2024-11-14 05:09:50,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:09:50,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2024-11-14 05:09:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3451, Invalid=5861, Unknown=0, NotChecked=0, Total=9312 [2024-11-14 05:09:50,223 INFO L87 Difference]: Start difference. First operand 141 states and 215 transitions. Second operand has 91 states, 25 states have (on average 1.16) internal successors, (29), 28 states have internal predecessors, (29), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 05:09:56,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:09:56,995 INFO L93 Difference]: Finished difference Result 149 states and 224 transitions. [2024-11-14 05:09:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-11-14 05:09:56,996 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 25 states have (on average 1.16) internal successors, (29), 28 states have internal predecessors, (29), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 223 [2024-11-14 05:09:56,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:09:56,997 INFO L225 Difference]: With dead ends: 149 [2024-11-14 05:09:56,997 INFO L226 Difference]: Without dead ends: 147 [2024-11-14 05:09:56,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 572 SyntacticMatches, 4 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1691 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=3451, Invalid=5861, Unknown=0, NotChecked=0, Total=9312 [2024-11-14 05:09:56,999 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 65 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:09:56,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 436 Invalid, 2872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-14 05:09:57,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-14 05:09:57,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2024-11-14 05:09:57,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 64 states have (on average 1.25) internal successors, (80), 73 states have internal predecessors, (80), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-14 05:09:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 220 transitions. [2024-11-14 05:09:57,064 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 220 transitions. Word has length 223 [2024-11-14 05:09:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:09:57,064 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 220 transitions. [2024-11-14 05:09:57,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 25 states have (on average 1.16) internal successors, (29), 28 states have internal predecessors, (29), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 05:09:57,065 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 220 transitions. [2024-11-14 05:09:57,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-14 05:09:57,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:09:57,067 INFO L215 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:09:57,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 05:09:57,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 05:09:57,267 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:09:57,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:09:57,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1901321557, now seen corresponding path program 1 times [2024-11-14 05:09:57,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:09:57,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924964134] [2024-11-14 05:09:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:09:57,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:09:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:09:57,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:09:57,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:09:57,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924964134] [2024-11-14 05:09:57,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924964134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:09:57,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145606736] [2024-11-14 05:09:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:09:57,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:09:57,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:09:57,562 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:09:57,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 05:09:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:09:57,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:09:57,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:09:58,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:09:58,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:09:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:09:58,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145606736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:09:58,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [429338419] [2024-11-14 05:09:58,641 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2024-11-14 05:09:58,641 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:09:58,642 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:09:58,642 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:09:58,642 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:10:06,410 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:10:06,411 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:10:51,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [429338419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:10:51,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:10:51,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [7, 7, 7] total 103 [2024-11-14 05:10:51,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751178289] [2024-11-14 05:10:51,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:10:51,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2024-11-14 05:10:51,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:10:51,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2024-11-14 05:10:51,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3710, Invalid=7002, Unknown=0, NotChecked=0, Total=10712 [2024-11-14 05:10:51,354 INFO L87 Difference]: Start difference. First operand 145 states and 220 transitions. Second operand has 90 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:10:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:10:57,046 INFO L93 Difference]: Finished difference Result 155 states and 232 transitions. [2024-11-14 05:10:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-14 05:10:57,046 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 222 [2024-11-14 05:10:57,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:10:57,049 INFO L225 Difference]: With dead ends: 155 [2024-11-14 05:10:57,049 INFO L226 Difference]: Without dead ends: 154 [2024-11-14 05:10:57,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 566 SyntacticMatches, 3 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2203 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=3710, Invalid=7002, Unknown=0, NotChecked=0, Total=10712 [2024-11-14 05:10:57,051 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 51 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 2329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:10:57,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 473 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2329 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-14 05:10:57,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-14 05:10:57,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2024-11-14 05:10:57,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 79 states have internal predecessors, (87), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-14 05:10:57,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 229 transitions. [2024-11-14 05:10:57,107 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 229 transitions. Word has length 222 [2024-11-14 05:10:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:10:57,108 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 229 transitions. [2024-11-14 05:10:57,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:10:57,108 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 229 transitions. [2024-11-14 05:10:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-14 05:10:57,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:10:57,110 INFO L215 NwaCegarLoop]: trace histogram [64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:10:57,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 05:10:57,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-14 05:10:57,311 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:10:57,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:10:57,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1964284387, now seen corresponding path program 1 times [2024-11-14 05:10:57,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:10:57,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360329334] [2024-11-14 05:10:57,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:57,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:10:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:57,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:10:57,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:10:57,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360329334] [2024-11-14 05:10:57,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360329334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:10:57,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679638799] [2024-11-14 05:10:57,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:10:57,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:10:57,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:10:57,541 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:10:57,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:10:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:10:57,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:10:57,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:10:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:10:58,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:10:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 4 proven. 59 refuted. 0 times theorem prover too weak. 3969 trivial. 0 not checked. [2024-11-14 05:10:58,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679638799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:10:58,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1337269550] [2024-11-14 05:10:58,519 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2024-11-14 05:10:58,519 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:10:58,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:10:58,520 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:10:58,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:11:06,298 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:11:06,299 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:11:52,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1337269550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:11:52,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:11:52,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [5, 5, 5] total 94 [2024-11-14 05:11:52,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67107704] [2024-11-14 05:11:52,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:11:52,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2024-11-14 05:11:52,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:11:52,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2024-11-14 05:11:52,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3294, Invalid=5636, Unknown=0, NotChecked=0, Total=8930 [2024-11-14 05:11:52,434 INFO L87 Difference]: Start difference. First operand 152 states and 229 transitions. Second operand has 90 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:11:57,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:11:57,667 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2024-11-14 05:11:57,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-14 05:11:57,668 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 222 [2024-11-14 05:11:57,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:11:57,671 INFO L225 Difference]: With dead ends: 160 [2024-11-14 05:11:57,672 INFO L226 Difference]: Without dead ends: 159 [2024-11-14 05:11:57,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 571 SyntacticMatches, 5 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1266 ImplicationChecksByTransitivity, 46.1s TimeCoverageRelationStatistics Valid=3294, Invalid=5636, Unknown=0, NotChecked=0, Total=8930 [2024-11-14 05:11:57,674 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 54 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:11:57,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 357 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-14 05:11:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-14 05:11:57,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2024-11-14 05:11:57,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 79 states have internal predecessors, (87), 71 states have call successors, (71), 1 states have call predecessors, (71), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-14 05:11:57,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 229 transitions. [2024-11-14 05:11:57,758 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 229 transitions. Word has length 222 [2024-11-14 05:11:57,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:11:57,758 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 229 transitions. [2024-11-14 05:11:57,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-14 05:11:57,759 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 229 transitions. [2024-11-14 05:11:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-14 05:11:57,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:11:57,763 INFO L215 NwaCegarLoop]: trace histogram [65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:11:57,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 05:11:57,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-14 05:11:57,964 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-14 05:11:57,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:11:57,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1167802226, now seen corresponding path program 1 times [2024-11-14 05:11:57,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:11:57,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355616116] [2024-11-14 05:11:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:57,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:11:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2024-11-14 05:11:58,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:11:58,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355616116] [2024-11-14 05:11:58,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355616116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:11:58,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872961245] [2024-11-14 05:11:58,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:11:58,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:11:58,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:11:58,260 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:11:58,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_638d08fe-f719-4ada-bb78-a2ad376e38ff/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-14 05:11:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:11:58,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:11:58,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:11:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2024-11-14 05:11:58,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:11:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 4096 trivial. 0 not checked. [2024-11-14 05:11:59,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872961245] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:11:59,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1096278431] [2024-11-14 05:11:59,362 INFO L159 IcfgInterpreter]: Started Sifa with 98 locations of interest [2024-11-14 05:11:59,362 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:11:59,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:11:59,363 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:11:59,363 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:12:06,968 INFO L197 IcfgInterpreter]: Interpreting procedure assume with input of size 3 for LOIs [2024-11-14 05:12:06,969 INFO L180 IcfgInterpreter]: Interpretation finished