./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.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_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/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_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/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_ee304902-37e6-40d3-af9b-330ffceffa71/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 ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:16:09,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:16:09,658 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 03:16:09,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:16:09,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:16:09,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:16:09,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:16:09,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:16:09,711 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:16:09,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:16:09,712 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:16:09,712 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:16:09,712 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:16:09,712 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:16:09,712 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:16:09,712 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:16:09,712 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:16:09,712 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:16:09,712 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:16:09,715 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:16:09,715 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:16:09,715 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:16:09,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:16:09,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:16:09,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:16:09,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:16:09,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:16:09,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:16:09,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:16:09,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:16:09,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:16:09,719 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:16:09,719 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:16:09,720 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:16:09,720 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:16:09,720 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:16:09,720 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:16:09,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:16:09,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:16:09,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:16:09,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:16:09,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:16:09,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:16:09,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:16:09,723 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:16:09,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:16:09,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:16:09,723 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:16:09,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:16:09,724 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_ee304902-37e6-40d3-af9b-330ffceffa71/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 -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2024-11-14 03:16:10,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:16:10,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:16:10,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:16:10,155 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:16:10,156 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:16:10,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c Unable to find full path for "g++" [2024-11-14 03:16:12,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:16:12,860 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:16:12,864 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-11-14 03:16:12,881 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/data/b99d0e566/cf3ffec935d24545b39ab8f8cbdd2999/FLAG6f3baee94 [2024-11-14 03:16:13,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/data/b99d0e566/cf3ffec935d24545b39ab8f8cbdd2999 [2024-11-14 03:16:13,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:16:13,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:16:13,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:16:13,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:16:13,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:16:13,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d90c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13, skipping insertion in model container [2024-11-14 03:16:13,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:16:13,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:16:13,466 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:16:13,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:16:13,551 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:16:13,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13 WrapperNode [2024-11-14 03:16:13,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:16:13,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:16:13,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:16:13,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:16:13,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,607 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 531 [2024-11-14 03:16:13,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:16:13,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:16:13,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:16:13,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:16:13,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:16:13,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:16:13,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:16:13,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:16:13,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (1/1) ... [2024-11-14 03:16:13,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:16:13,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:16:13,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:16:13,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:16:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:16:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:16:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:16:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:16:13,879 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:16:13,881 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:16:13,902 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-14 03:16:14,786 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2024-11-14 03:16:14,786 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2024-11-14 03:16:14,892 INFO L? ?]: Removed 125 outVars from TransFormulas that were not future-live. [2024-11-14 03:16:14,892 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:16:15,236 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:16:15,237 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:16:15,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:16:15 BoogieIcfgContainer [2024-11-14 03:16:15,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:16:15,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:16:15,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:16:15,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:16:15,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:16:13" (1/3) ... [2024-11-14 03:16:15,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d1f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:16:15, skipping insertion in model container [2024-11-14 03:16:15,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:13" (2/3) ... [2024-11-14 03:16:15,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6d1f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:16:15, skipping insertion in model container [2024-11-14 03:16:15,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:16:15" (3/3) ... [2024-11-14 03:16:15,252 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2024-11-14 03:16:15,274 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:16:15,277 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG s3_clnt_3.BV.c.cil-1a.c that has 1 procedures, 86 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-14 03:16:15,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:16:15,372 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;@21294330, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:16:15,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:16:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 83 states have (on average 1.7710843373493976) internal successors, (147), 85 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:15,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:16:15,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:16:15,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:16:15,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:16:15,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:16:15,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1595049193, now seen corresponding path program 1 times [2024-11-14 03:16:15,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:16:15,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615408943] [2024-11-14 03:16:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:16:15,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:16:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:16:15,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:16:15,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:16:15,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615408943] [2024-11-14 03:16:15,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615408943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:16:15,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:16:15,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:16:15,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199107602] [2024-11-14 03:16:15,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:16:15,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:16:15,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:16:15,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:16:15,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:16:15,753 INFO L87 Difference]: Start difference. First operand has 86 states, 83 states have (on average 1.7710843373493976) internal successors, (147), 85 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:16,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:16:16,133 INFO L93 Difference]: Finished difference Result 173 states and 297 transitions. [2024-11-14 03:16:16,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:16:16,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 03:16:16,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:16:16,148 INFO L225 Difference]: With dead ends: 173 [2024-11-14 03:16:16,149 INFO L226 Difference]: Without dead ends: 85 [2024-11-14 03:16:16,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:16:16,159 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:16:16,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:16:16,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-14 03:16:16,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-14 03:16:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 83 states have (on average 1.4698795180722892) internal successors, (122), 84 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 122 transitions. [2024-11-14 03:16:16,203 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 122 transitions. Word has length 11 [2024-11-14 03:16:16,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:16:16,204 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 122 transitions. [2024-11-14 03:16:16,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:16,204 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2024-11-14 03:16:16,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 03:16:16,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:16:16,205 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:16:16,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:16:16,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:16:16,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:16:16,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1486742643, now seen corresponding path program 1 times [2024-11-14 03:16:16,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:16:16,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363354327] [2024-11-14 03:16:16,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:16:16,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:16:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:16:16,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:16:16,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:16:16,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363354327] [2024-11-14 03:16:16,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363354327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:16:16,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:16:16,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:16:16,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973902204] [2024-11-14 03:16:16,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:16:16,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:16:16,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:16:16,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:16:16,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:16:16,440 INFO L87 Difference]: Start difference. First operand 85 states and 122 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:16,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:16:16,850 INFO L93 Difference]: Finished difference Result 205 states and 314 transitions. [2024-11-14 03:16:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:16:16,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-14 03:16:16,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:16:16,854 INFO L225 Difference]: With dead ends: 205 [2024-11-14 03:16:16,854 INFO L226 Difference]: Without dead ends: 122 [2024-11-14 03:16:16,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:16:16,859 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 45 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:16:16,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 137 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:16:16,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-14 03:16:16,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-14 03:16:16,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.5537190082644627) internal successors, (188), 121 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 188 transitions. [2024-11-14 03:16:16,878 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 188 transitions. Word has length 20 [2024-11-14 03:16:16,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:16:16,878 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 188 transitions. [2024-11-14 03:16:16,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 188 transitions. [2024-11-14 03:16:16,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 03:16:16,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:16:16,879 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:16:16,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:16:16,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:16:16,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:16:16,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1155618618, now seen corresponding path program 1 times [2024-11-14 03:16:16,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:16:16,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498146953] [2024-11-14 03:16:16,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:16:16,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:16:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:16:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:16:16,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:16:16,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498146953] [2024-11-14 03:16:16,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498146953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:16:16,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:16:16,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:16:16,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279700343] [2024-11-14 03:16:16,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:16:16,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:16:16,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:16:16,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:16:16,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:16:16,975 INFO L87 Difference]: Start difference. First operand 122 states and 188 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:17,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:16:17,271 INFO L93 Difference]: Finished difference Result 317 states and 513 transitions. [2024-11-14 03:16:17,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:16:17,273 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-14 03:16:17,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:16:17,273 INFO L225 Difference]: With dead ends: 317 [2024-11-14 03:16:17,273 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:16:17,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:16:17,275 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 41 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:16:17,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 95 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:16:17,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:16:17,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:16:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:16:17,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2024-11-14 03:16:17,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:16:17,281 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:16:17,281 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:16:17,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:16:17,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:16:17,285 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 03:16:17,285 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 03:16:17,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:16:17,289 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 03:16:17,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 03:16:17,304 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:16:17,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:16:17 BoogieIcfgContainer [2024-11-14 03:16:17,321 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:16:17,324 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:16:17,324 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:16:17,324 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:16:17,325 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:16:15" (3/4) ... [2024-11-14 03:16:17,329 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:16:17,356 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-11-14 03:16:17,357 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-14 03:16:17,360 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 03:16:17,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:16:17,481 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:16:17,482 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:16:17,482 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:16:17,483 INFO L158 Benchmark]: Toolchain (without parser) took 4331.96ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 35.6MB in the end (delta: 56.3MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-14 03:16:17,483 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:16:17,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.21ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 76.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:16:17,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.09ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:16:17,484 INFO L158 Benchmark]: Boogie Preprocessor took 49.87ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 72.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:16:17,485 INFO L158 Benchmark]: RCFGBuilder took 1578.33ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 57.6MB in the end (delta: 14.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2024-11-14 03:16:17,485 INFO L158 Benchmark]: TraceAbstraction took 2081.05ms. Allocated memory is still 117.4MB. Free memory was 56.8MB in the beginning and 44.0MB in the end (delta: 12.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-11-14 03:16:17,485 INFO L158 Benchmark]: Witness Printer took 157.91ms. Allocated memory is still 117.4MB. Free memory was 44.0MB in the beginning and 35.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:16:17,487 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.21ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 76.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.09ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.2MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.87ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 72.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1578.33ms. Allocated memory is still 117.4MB. Free memory was 72.3MB in the beginning and 57.6MB in the end (delta: 14.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2081.05ms. Allocated memory is still 117.4MB. Free memory was 56.8MB in the beginning and 44.0MB in the end (delta: 12.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 157.91ms. Allocated memory is still 117.4MB. Free memory was 44.0MB in the beginning and 35.6MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 284]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 284]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 411 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 425 IncrementalHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 299 mSDtfsCounter, 425 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=2, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 03:16:17,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee304902-37e6-40d3-af9b-330ffceffa71/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE