./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/terminator_03-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/terminator_03-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje --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 29dc9e3729c830d8e3c5d3b9c1192e2e5ef8005db44043b0e7499e254bae8165 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:04:52,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:04:52,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 01:04:52,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:04:52,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:04:52,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:04:52,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:04:52,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:04:52,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:04:52,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:04:52,396 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:04:52,396 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:04:52,397 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:04:52,397 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:04:52,398 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:04:52,398 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:04:52,402 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:04:52,403 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:04:52,403 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:04:52,404 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:04:52,404 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:04:52,405 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:04:52,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:04:52,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:04:52,410 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:04:52,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:04:52,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:04:52,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:04:52,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:04:52,411 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:04:52,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:04:52,412 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:04:52,414 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 01:04:52,414 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:04:52,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:04:52,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:04:52,428 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:04:52,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:04:52,429 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:04:52,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:04:52,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:04:52,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:04:52,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:04:52,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:04:52,432 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:04:52,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:04:52,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:04:52,433 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:04:52,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:04:52,433 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29dc9e3729c830d8e3c5d3b9c1192e2e5ef8005db44043b0e7499e254bae8165 [2024-11-09 01:04:52,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:04:52,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:04:52,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:04:52,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:04:52,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:04:52,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/loops/terminator_03-2.i Unable to find full path for "g++" [2024-11-09 01:04:55,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:04:55,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:04:55,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/sv-benchmarks/c/loops/terminator_03-2.i [2024-11-09 01:04:55,286 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/data/8ddf6403d/93667328497d43e894c501377b53cde2/FLAG5620d0020 [2024-11-09 01:04:55,315 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/data/8ddf6403d/93667328497d43e894c501377b53cde2 [2024-11-09 01:04:55,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:04:55,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:04:55,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:04:55,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:04:55,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:04:55,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e27667b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55, skipping insertion in model container [2024-11-09 01:04:55,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:04:55,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:04:55,608 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:04:55,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:04:55,644 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:04:55,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55 WrapperNode [2024-11-09 01:04:55,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:04:55,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:04:55,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:04:55,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:04:55,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,678 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 37 [2024-11-09 01:04:55,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:04:55,680 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:04:55,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:04:55,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:04:55,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:04:55,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:04:55,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:04:55,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:04:55,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (1/1) ... [2024-11-09 01:04:55,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:04:55,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:55,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:04:55,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:04:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:04:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:04:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:04:55,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:04:55,851 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:04:55,853 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:04:56,020 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 01:04:56,021 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:04:56,073 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:04:56,073 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:04:56,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:56 BoogieIcfgContainer [2024-11-09 01:04:56,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:04:56,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:04:56,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:04:56,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:04:56,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:04:55" (1/3) ... [2024-11-09 01:04:56,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521b05f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:04:56, skipping insertion in model container [2024-11-09 01:04:56,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:04:55" (2/3) ... [2024-11-09 01:04:56,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521b05f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:04:56, skipping insertion in model container [2024-11-09 01:04:56,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:56" (3/3) ... [2024-11-09 01:04:56,084 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_03-2.i [2024-11-09 01:04:56,103 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:04:56,104 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 01:04:56,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:04:56,174 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;@77bfb98f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:04:56,174 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 01:04:56,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:04:56,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 01:04:56,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:56,188 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 01:04:56,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 01:04:56,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:56,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1911971143, now seen corresponding path program 1 times [2024-11-09 01:04:56,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:56,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642953634] [2024-11-09 01:04:56,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:56,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:04:56,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:56,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642953634] [2024-11-09 01:04:56,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642953634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:56,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:56,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:04:56,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404211320] [2024-11-09 01:04:56,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:56,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:04:56,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:56,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:04:56,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:04:56,572 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:04:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:56,750 INFO L93 Difference]: Finished difference Result 23 states and 33 transitions. [2024-11-09 01:04:56,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:04:56,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 01:04:56,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:56,761 INFO L225 Difference]: With dead ends: 23 [2024-11-09 01:04:56,761 INFO L226 Difference]: Without dead ends: 17 [2024-11-09 01:04:56,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:04:56,768 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:56,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:04:56,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-09 01:04:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2024-11-09 01:04:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:04:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-09 01:04:56,810 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 6 [2024-11-09 01:04:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:56,811 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-09 01:04:56,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:04:56,812 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-09 01:04:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 01:04:56,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:56,812 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:56,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:04:56,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 01:04:56,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:56,814 INFO L85 PathProgramCache]: Analyzing trace with hash 858436764, now seen corresponding path program 1 times [2024-11-09 01:04:56,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:56,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386334480] [2024-11-09 01:04:56,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:56,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:04:56,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:56,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386334480] [2024-11-09 01:04:56,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386334480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:56,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:04:56,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:04:56,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452339555] [2024-11-09 01:04:56,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:56,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:04:56,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:56,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:04:56,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:04:56,930 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:04:56,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:56,981 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-11-09 01:04:56,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:04:56,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 01:04:56,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:56,983 INFO L225 Difference]: With dead ends: 12 [2024-11-09 01:04:56,984 INFO L226 Difference]: Without dead ends: 11 [2024-11-09 01:04:56,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:04:56,989 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:56,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:04:56,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-09 01:04:56,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-09 01:04:57,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 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) [2024-11-09 01:04:57,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-09 01:04:57,001 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2024-11-09 01:04:57,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:57,001 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-11-09 01:04:57,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:04:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-09 01:04:57,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 01:04:57,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:04:57,005 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 01:04:57,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:04:57,006 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 01:04:57,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:04:57,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1454399794, now seen corresponding path program 1 times [2024-11-09 01:04:57,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:04:57,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160666424] [2024-11-09 01:04:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:04:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:04:57,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:04:57,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160666424] [2024-11-09 01:04:57,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160666424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:04:57,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225949505] [2024-11-09 01:04:57,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:04:57,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:57,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:04:57,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:04:57,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:04:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:04:57,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:04:57,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:04:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:04:57,531 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:04:57,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225949505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:04:57,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:04:57,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-09 01:04:57,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897906894] [2024-11-09 01:04:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:04:57,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:04:57,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:04:57,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:04:57,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:04:57,535 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:04:57,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:04:57,565 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-11-09 01:04:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:04:57,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 01:04:57,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:04:57,567 INFO L225 Difference]: With dead ends: 12 [2024-11-09 01:04:57,567 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 01:04:57,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:04:57,570 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:04:57,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:04:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 01:04:57,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 01:04:57,572 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) [2024-11-09 01:04:57,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 01:04:57,573 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-11-09 01:04:57,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:04:57,573 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 01:04:57,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:04:57,574 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 01:04:57,574 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 01:04:57,578 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 01:04:57,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 01:04:57,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:04:57,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:04:57,787 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 01:04:57,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 01:04:57,841 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:04:57,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:04:57 BoogieIcfgContainer [2024-11-09 01:04:57,862 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:04:57,863 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:04:57,863 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:04:57,864 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:04:57,865 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:04:56" (3/4) ... [2024-11-09 01:04:57,868 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 01:04:57,880 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 01:04:57,881 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 01:04:57,881 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 01:04:57,881 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 01:04:57,984 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 01:04:57,985 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 01:04:57,985 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:04:57,986 INFO L158 Benchmark]: Toolchain (without parser) took 2666.74ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 121.3MB in the end (delta: 18.3MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-11-09 01:04:57,987 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 121.6MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:04:57,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.65ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 127.6MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 01:04:57,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.92ms. Allocated memory is still 169.9MB. Free memory was 127.6MB in the beginning and 125.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:04:57,988 INFO L158 Benchmark]: Boogie Preprocessor took 23.17ms. Allocated memory is still 169.9MB. Free memory was 125.9MB in the beginning and 124.9MB in the end (delta: 945.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:04:57,988 INFO L158 Benchmark]: RCFGBuilder took 370.56ms. Allocated memory is still 169.9MB. Free memory was 124.9MB in the beginning and 113.4MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 01:04:57,989 INFO L158 Benchmark]: TraceAbstraction took 1785.35ms. Allocated memory is still 169.9MB. Free memory was 112.9MB in the beginning and 125.5MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:04:57,989 INFO L158 Benchmark]: Witness Printer took 122.35ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 121.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 01:04:57,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 121.6MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.65ms. Allocated memory is still 169.9MB. Free memory was 139.6MB in the beginning and 127.6MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.92ms. Allocated memory is still 169.9MB. Free memory was 127.6MB in the beginning and 125.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.17ms. Allocated memory is still 169.9MB. Free memory was 125.9MB in the beginning and 124.9MB in the end (delta: 945.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 370.56ms. Allocated memory is still 169.9MB. Free memory was 124.9MB in the beginning and 113.4MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1785.35ms. Allocated memory is still 169.9MB. Free memory was 112.9MB in the beginning and 125.5MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 122.35ms. Allocated memory is still 169.9MB. Free memory was 125.5MB in the beginning and 121.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 3/6 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 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((1 <= y) && (0 <= (x + 2147483648))) && (y <= 1000000)) RESULT: Ultimate proved your program to be correct! [2024-11-09 01:04:58,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_635c6a25-abc5-42b6-bb6f-360aadeac039/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE