./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.c --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_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/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_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/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_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/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 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:42:08,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:42:08,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:42:08,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:42:08,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:42:08,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:42:08,526 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:42:08,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:42:08,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:42:08,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:42:08,529 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:42:08,529 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:42:08,530 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:42:08,532 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:42:08,533 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:42:08,533 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:42:08,533 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:42:08,534 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:42:08,534 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:42:08,535 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:42:08,535 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:42:08,536 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:42:08,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:42:08,539 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:42:08,539 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:42:08,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:42:08,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:42:08,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:42:08,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:42:08,542 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:42:08,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:42:08,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:42:08,543 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:42:08,543 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:42:08,544 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:42:08,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:42:08,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:42:08,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:42:08,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:42:08,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:42:08,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:42:08,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:42:08,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:42:08,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:42:08,548 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:42:08,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:42:08,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:42:08,549 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:42:08,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:42:08,550 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_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b [2024-11-09 06:42:08,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:42:08,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:42:08,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:42:08,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:42:08,884 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:42:08,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/loops/terminator_02-1.c Unable to find full path for "g++" [2024-11-09 06:42:10,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:42:11,024 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:42:11,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/sv-benchmarks/c/loops/terminator_02-1.c [2024-11-09 06:42:11,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/data/4481bef1e/77dbd72ed79f406d8ef56e0b9146418a/FLAG3ad789685 [2024-11-09 06:42:11,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/data/4481bef1e/77dbd72ed79f406d8ef56e0b9146418a [2024-11-09 06:42:11,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:42:11,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:42:11,061 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:42:11,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:42:11,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:42:11,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712512c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11, skipping insertion in model container [2024-11-09 06:42:11,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:42:11,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:42:11,310 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:42:11,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:42:11,358 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:42:11,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11 WrapperNode [2024-11-09 06:42:11,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:42:11,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:42:11,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:42:11,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:42:11,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,399 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-11-09 06:42:11,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:42:11,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:42:11,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:42:11,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:42:11,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:42:11,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:42:11,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:42:11,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:42:11,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (1/1) ... [2024-11-09 06:42:11,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:42:11,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:42:11,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:42:11,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:42:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:42:11,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:42:11,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:42:11,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:42:11,589 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:42:11,593 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:42:11,831 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 06:42:11,834 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:42:11,885 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:42:11,887 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:42:11,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:42:11 BoogieIcfgContainer [2024-11-09 06:42:11,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:42:11,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:42:11,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:42:11,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:42:11,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:42:11" (1/3) ... [2024-11-09 06:42:11,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf186ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:42:11, skipping insertion in model container [2024-11-09 06:42:11,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:42:11" (2/3) ... [2024-11-09 06:42:11,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf186ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:42:11, skipping insertion in model container [2024-11-09 06:42:11,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:42:11" (3/3) ... [2024-11-09 06:42:11,899 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2024-11-09 06:42:11,920 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:42:11,921 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 06:42:11,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:42:12,006 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;@2c1a7429, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:42:12,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 06:42:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.75) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 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 06:42:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 06:42:12,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:42:12,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 06:42:12,019 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 06:42:12,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:42:12,026 INFO L85 PathProgramCache]: Analyzing trace with hash 77765722, now seen corresponding path program 1 times [2024-11-09 06:42:12,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:42:12,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387429036] [2024-11-09 06:42:12,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:42:12,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:42:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:42:12,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:42:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:42:12,258 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:42:12,260 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:42:12,262 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-09 06:42:12,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-09 06:42:12,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-09 06:42:12,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-09 06:42:12,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-09 06:42:12,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-09 06:42:12,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:42:12,268 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:42:12,283 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:42:12,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:42:12 BoogieIcfgContainer [2024-11-09 06:42:12,288 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:42:12,289 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:42:12,289 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:42:12,290 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:42:12,290 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:42:11" (3/4) ... [2024-11-09 06:42:12,291 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 06:42:12,335 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_add0da1c-3f50-4b27-90c5-7c0b96c1bf81/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:42:12,336 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:42:12,338 INFO L158 Benchmark]: Toolchain (without parser) took 1278.11ms. Allocated memory is still 169.9MB. Free memory was 133.1MB in the beginning and 137.1MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:42:12,339 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:42:12,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.36ms. Allocated memory is still 169.9MB. Free memory was 132.6MB in the beginning and 120.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:42:12,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.81ms. Allocated memory is still 169.9MB. Free memory was 120.5MB in the beginning and 119.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:42:12,341 INFO L158 Benchmark]: Boogie Preprocessor took 30.79ms. Allocated memory is still 169.9MB. Free memory was 119.3MB in the beginning and 117.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:42:12,341 INFO L158 Benchmark]: RCFGBuilder took 453.83ms. Allocated memory is still 169.9MB. Free memory was 117.9MB in the beginning and 105.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:42:12,346 INFO L158 Benchmark]: TraceAbstraction took 398.38ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 138.1MB in the end (delta: -33.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:42:12,346 INFO L158 Benchmark]: Witness Printer took 46.65ms. Allocated memory is still 169.9MB. Free memory was 138.1MB in the beginning and 137.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:42:12,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.36ms. Allocated memory is still 169.9MB. Free memory was 132.6MB in the beginning and 120.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.81ms. Allocated memory is still 169.9MB. Free memory was 120.5MB in the beginning and 119.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.79ms. Allocated memory is still 169.9MB. Free memory was 119.3MB in the beginning and 117.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 453.83ms. Allocated memory is still 169.9MB. Free memory was 117.9MB in the beginning and 105.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 398.38ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 138.1MB in the end (delta: -33.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 46.65ms. Allocated memory is still 169.9MB. Free memory was 138.1MB in the beginning and 137.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); [L17] int y=__VERIFIER_nondet_int(); [L18] int z=__VERIFIER_nondet_int(); [L20] COND FALSE !(x<100 && 100