./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-bwb/display-bit1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-bwb/display-bit1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 1b9a08886a56ed1f5b1987fef70463691f86d0e26c09f07ffd7b40b2019e3a8a --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:39:12,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:39:12,643 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 01:39:12,646 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:39:12,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:39:12,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:39:12,668 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:39:12,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:39:12,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:39:12,668 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:39:12,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:39:12,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:39:12,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:39:12,669 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:39:12,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:39:12,670 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:39:12,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:39:12,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:39:12,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:39:12,671 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b9a08886a56ed1f5b1987fef70463691f86d0e26c09f07ffd7b40b2019e3a8a [2025-03-09 01:39:12,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:39:12,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:39:12,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:39:12,903 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:39:12,904 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:39:12,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/display-bit1.i [2025-03-09 01:39:14,046 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8262b9680/f349f9b08bfb447ba71968bac454b734/FLAG710fad82f [2025-03-09 01:39:14,325 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:39:14,326 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/display-bit1.i [2025-03-09 01:39:14,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8262b9680/f349f9b08bfb447ba71968bac454b734/FLAG710fad82f [2025-03-09 01:39:14,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8262b9680/f349f9b08bfb447ba71968bac454b734 [2025-03-09 01:39:14,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:39:14,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:39:14,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:39:14,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:39:14,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:39:14,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105070a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14, skipping insertion in model container [2025-03-09 01:39:14,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:39:14,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:39:14,813 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:39:14,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:39:14,863 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:39:14,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14 WrapperNode [2025-03-09 01:39:14,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:39:14,864 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:39:14,864 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:39:14,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:39:14,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,888 INFO L138 Inliner]: procedures = 88, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2025-03-09 01:39:14,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:39:14,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:39:14,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:39:14,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:39:14,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,894 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,898 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-09 01:39:14,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,898 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,899 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:39:14,902 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:39:14,902 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:39:14,902 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:39:14,902 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (1/1) ... [2025-03-09 01:39:14,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:39:14,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:39:14,924 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 01:39:14,927 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 01:39:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:39:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:39:14,991 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:39:14,993 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:39:15,061 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2025-03-09 01:39:15,061 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:39:15,067 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:39:15,067 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:39:15,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:39:15 BoogieIcfgContainer [2025-03-09 01:39:15,067 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:39:15,069 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:39:15,069 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:39:15,073 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:39:15,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:39:14" (1/3) ... [2025-03-09 01:39:15,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2006261c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:39:15, skipping insertion in model container [2025-03-09 01:39:15,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:39:14" (2/3) ... [2025-03-09 01:39:15,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2006261c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:39:15, skipping insertion in model container [2025-03-09 01:39:15,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:39:15" (3/3) ... [2025-03-09 01:39:15,075 INFO L128 eAbstractionObserver]: Analyzing ICFG display-bit1.i [2025-03-09 01:39:15,086 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:39:15,087 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG display-bit1.i that has 1 procedures, 14 locations, 1 initial locations, 1 loop locations, and 3 error locations. [2025-03-09 01:39:15,120 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:39:15,129 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;@4a05e421, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:39:15,129 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-09 01:39:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 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) [2025-03-09 01:39:15,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-09 01:39:15,136 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:39:15,138 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-09 01:39:15,138 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 01:39:15,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:39:15,143 INFO L85 PathProgramCache]: Analyzing trace with hash 43660, now seen corresponding path program 1 times [2025-03-09 01:39:15,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:39:15,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272845502] [2025-03-09 01:39:15,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:39:15,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:39:15,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 01:39:15,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 01:39:15,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:39:15,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:39:15,203 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 01:39:15,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 01:39:15,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 01:39:15,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:39:15,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:39:15,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 01:39:15,224 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 01:39:15,224 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 3 remaining) [2025-03-09 01:39:15,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 3 remaining) [2025-03-09 01:39:15,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 3 remaining) [2025-03-09 01:39:15,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:39:15,229 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-09 01:39:15,238 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:39:15,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:39:15 BoogieIcfgContainer [2025-03-09 01:39:15,240 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:39:15,241 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:39:15,241 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:39:15,241 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:39:15,241 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:39:15" (3/4) ... [2025-03-09 01:39:15,242 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-09 01:39:15,265 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 1. [2025-03-09 01:39:15,293 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 01:39:15,293 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 01:39:15,293 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:39:15,295 INFO L158 Benchmark]: Toolchain (without parser) took 681.54ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 70.0MB in the end (delta: 43.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-09 01:39:15,295 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:39:15,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.29ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 99.4MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 01:39:15,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.14ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 98.4MB in the end (delta: 989.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:39:15,297 INFO L158 Benchmark]: Boogie Preprocessor took 12.37ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:39:15,298 INFO L158 Benchmark]: IcfgBuilder took 165.94ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 86.5MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:39:15,298 INFO L158 Benchmark]: TraceAbstraction took 171.15ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 75.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:39:15,298 INFO L158 Benchmark]: Witness Printer took 52.68ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 70.0MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:39:15,299 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 122.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.29ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 99.4MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.14ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 98.4MB in the end (delta: 989.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.37ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 165.94ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 86.5MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 171.15ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 75.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 52.68ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 70.0MB in the end (delta: 4.7MB). 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: 276]: integer overflow possible integer overflow possible We found a FailurePath: [L270] unsigned int number1= 65535; [L271] int mask = 1; [L272] unsigned int x; [L273] int c = 1; [L274] int y; VAL [c=1, mask=1, number1=65535, x=0, y=0] [L276] 1<<31 VAL [c=1, mask=1, number1=65535, x=0, y=0] - UnprovableResult [Line: 283]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 283]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 15 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-09 01:39:15,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)