./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/terminator_02-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:56:12,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:56:12,141 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 01:56:12,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:56:12,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:56:12,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:56:12,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:56:12,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:56:12,167 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:56:12,167 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:56:12,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:56:12,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:56:12,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:56:12,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:56:12,169 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:56:12,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:56:12,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 01:56:12,169 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:56:12,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:56:12,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:56:12,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:56:12,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 01:56:12,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:56:12,170 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:56:12,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:56:12,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:56:12,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:56:12,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:56:12,172 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 [2025-03-09 01:56:12,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:56:12,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:56:12,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:56:12,378 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:56:12,378 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:56:12,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/terminator_02-1.c [2025-03-09 01:56:13,505 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb13c59a/e5f945535bec4899a952c4a085959ad2/FLAG1cf43a301 [2025-03-09 01:56:13,737 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:56:13,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_02-1.c [2025-03-09 01:56:13,742 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb13c59a/e5f945535bec4899a952c4a085959ad2/FLAG1cf43a301 [2025-03-09 01:56:14,090 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb13c59a/e5f945535bec4899a952c4a085959ad2 [2025-03-09 01:56:14,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:56:14,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:56:14,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:56:14,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:56:14,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:56:14,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bbe078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14, skipping insertion in model container [2025-03-09 01:56:14,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:56:14,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:56:14,194 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:56:14,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:56:14,215 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:56:14,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14 WrapperNode [2025-03-09 01:56:14,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:56:14,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:56:14,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:56:14,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:56:14,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,234 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2025-03-09 01:56:14,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:56:14,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:56:14,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:56:14,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:56:14,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,250 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 01:56:14,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,252 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,253 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:56:14,254 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:56:14,254 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:56:14,254 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:56:14,255 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (1/1) ... [2025-03-09 01:56:14,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:56:14,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:56:14,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:56:14,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:56:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:56:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:56:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:56:14,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:56:14,327 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:56:14,328 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:56:14,428 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2025-03-09 01:56:14,428 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:56:14,436 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:56:14,437 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:56:14,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:56:14 BoogieIcfgContainer [2025-03-09 01:56:14,438 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:56:14,440 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:56:14,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:56:14,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:56:14,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:56:14" (1/3) ... [2025-03-09 01:56:14,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6e384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:56:14, skipping insertion in model container [2025-03-09 01:56:14,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:56:14" (2/3) ... [2025-03-09 01:56:14,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6e384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:56:14, skipping insertion in model container [2025-03-09 01:56:14,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:56:14" (3/3) ... [2025-03-09 01:56:14,447 INFO L128 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2025-03-09 01:56:14,457 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:56:14,458 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG terminator_02-1.c that has 1 procedures, 24 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2025-03-09 01:56:14,491 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:56:14,498 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=PETRI_NET, 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;@38982061, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:56:14,499 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-03-09 01:56:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 23 states have internal predecessors, (26), 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) [2025-03-09 01:56:14,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 01:56:14,505 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:56:14,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 01:56:14,506 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-09 01:56:14,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:56:14,510 INFO L85 PathProgramCache]: Analyzing trace with hash 53409271, now seen corresponding path program 1 times [2025-03-09 01:56:14,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:56:14,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012966546] [2025-03-09 01:56:14,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:56:14,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:56:14,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 01:56:14,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 01:56:14,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:56:14,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:56:14,592 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 01:56:14,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 01:56:14,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 01:56:14,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:56:14,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:56:14,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 01:56:14,621 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 01:56:14,622 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2025-03-09 01:56:14,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2025-03-09 01:56:14,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2025-03-09 01:56:14,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2025-03-09 01:56:14,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2025-03-09 01:56:14,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2025-03-09 01:56:14,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:56:14,627 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-09 01:56:14,642 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:56:14,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:56:14 BoogieIcfgContainer [2025-03-09 01:56:14,645 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:56:14,646 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:56:14,646 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:56:14,646 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:56:14,646 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:56:14" (3/4) ... [2025-03-09 01:56:14,647 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-09 01:56:14,673 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-03-09 01:56:14,705 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 01:56:14,706 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 01:56:14,706 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:56:14,707 INFO L158 Benchmark]: Toolchain (without parser) took 613.83ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 80.0MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-09 01:56:14,707 INFO L158 Benchmark]: CDTParser took 1.11ms. Allocated memory is still 201.3MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:56:14,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 122.53ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 112.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:56:14,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.37ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 110.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:56:14,709 INFO L158 Benchmark]: Boogie Preprocessor took 19.22ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.8MB in the end (delta: 976.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:56:14,710 INFO L158 Benchmark]: IcfgBuilder took 183.92ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 98.2MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 01:56:14,711 INFO L158 Benchmark]: TraceAbstraction took 204.66ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 85.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:56:14,711 INFO L158 Benchmark]: Witness Printer took 60.46ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 80.0MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:56:14,712 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11ms. Allocated memory is still 201.3MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 122.53ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 112.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.37ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 110.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.22ms. Allocated memory is still 167.8MB. Free memory was 110.8MB in the beginning and 109.8MB in the end (delta: 976.3kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 183.92ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 98.2MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 204.66ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 85.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 60.46ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 80.0MB in the end (delta: 5.0MB). 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 - 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 TRUE x<100 && 100