/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-bwb/display-bit.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:10:43,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:10:43,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:10:43,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:10:43,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:10:43,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:10:43,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:10:43,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:10:43,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:10:43,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:10:43,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:10:43,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:10:43,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:10:43,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:10:43,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:10:43,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:10:43,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:10:43,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:10:43,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:10:43,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:10:43,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:10:43,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:10:43,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:10:43,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:10:43,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:10:43,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:10:43,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:10:43,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:10:43,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:10:43,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:10:43,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:10:43,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:10:43,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:10:43,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:10:43,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:10:43,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:10:43,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:10:43,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:10:43,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:10:43,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:10:43,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:10:43,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:10:43,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:10:43,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:10:43,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:10:43,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:10:43,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:10:43,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:10:43,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:10:43,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:10:43,406 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:10:43,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:10:43,408 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:10:43,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:10:43,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:10:43,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:10:43,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:10:43,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:10:43,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:10:43,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:10:43,409 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:10:43,410 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:10:43,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:10:43,410 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:10:43,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:10:43,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:10:43,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:10:43,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:10:43,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:10:43,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:10:43,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:10:43,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:10:43,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:10:43,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:10:43,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:10:43,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:10:43,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:10:43,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:10:43,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:10:43,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:10:43,880 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:10:43,881 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/display-bit.i [2022-10-16 17:10:43,972 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ce574ac2/c247250f17aa41bc97320e84b2b357bc/FLAG9d9b8fc90 [2022-10-16 17:10:44,501 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:10:44,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/display-bit.i [2022-10-16 17:10:44,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ce574ac2/c247250f17aa41bc97320e84b2b357bc/FLAG9d9b8fc90 [2022-10-16 17:10:44,805 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ce574ac2/c247250f17aa41bc97320e84b2b357bc [2022-10-16 17:10:44,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:10:44,814 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:10:44,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:10:44,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:10:44,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:10:44,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:10:44" (1/1) ... [2022-10-16 17:10:44,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d85f28b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:44, skipping insertion in model container [2022-10-16 17:10:44,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:10:44" (1/1) ... [2022-10-16 17:10:44,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:10:44,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:10:45,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:10:45,309 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:10:45,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:10:45,418 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:10:45,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45 WrapperNode [2022-10-16 17:10:45,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:10:45,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:10:45,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:10:45,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:10:45,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,575 INFO L138 Inliner]: procedures = 90, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-16 17:10:45,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:10:45,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:10:45,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:10:45,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:10:45,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,625 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:10:45,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:10:45,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:10:45,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:10:45,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (1/1) ... [2022-10-16 17:10:45,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:10:45,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:10:45,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:10:45,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:10:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:10:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2022-10-16 17:10:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure displayBits [2022-10-16 17:10:45,742 INFO L138 BoogieDeclarations]: Found implementation of procedure displayBits [2022-10-16 17:10:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:10:45,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:10:45,832 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:10:45,835 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:10:46,157 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:10:46,181 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:10:46,181 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:10:46,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:10:46 BoogieIcfgContainer [2022-10-16 17:10:46,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:10:46,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:10:46,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:10:46,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:10:46,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:10:44" (1/3) ... [2022-10-16 17:10:46,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b649ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:10:46, skipping insertion in model container [2022-10-16 17:10:46,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:10:45" (2/3) ... [2022-10-16 17:10:46,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b649ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:10:46, skipping insertion in model container [2022-10-16 17:10:46,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:10:46" (3/3) ... [2022-10-16 17:10:46,215 INFO L112 eAbstractionObserver]: Analyzing ICFG display-bit.i [2022-10-16 17:10:46,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:10:46,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-10-16 17:10:46,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:10:46,390 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6f94d380, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:10:46,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-10-16 17:10:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 17:10:46,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 17:10:46,409 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:10:46,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 17:10:46,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting displayBitsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, displayBitsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-10-16 17:10:46,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:10:46,423 INFO L85 PathProgramCache]: Analyzing trace with hash 28754498, now seen corresponding path program 1 times [2022-10-16 17:10:46,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:10:46,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471406263] [2022-10-16 17:10:46,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:10:46,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:10:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:10:46,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 17:10:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:10:46,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 17:10:46,612 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 17:10:46,614 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location displayBitsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2022-10-16 17:10:46,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-10-16 17:10:46,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-10-16 17:10:46,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location displayBitsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-10-16 17:10:46,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location displayBitsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 5 remaining) [2022-10-16 17:10:46,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:10:46,625 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-16 17:10:46,631 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:10:46,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:10:46 BoogieIcfgContainer [2022-10-16 17:10:46,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:10:46,656 INFO L158 Benchmark]: Toolchain (without parser) took 1845.57ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 105.0MB in the end (delta: -142.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:10:46,657 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:10:46,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.86ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 129.7MB in the end (delta: -25.0MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2022-10-16 17:10:46,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.50ms. Allocated memory is still 151.0MB. Free memory was 129.7MB in the beginning and 132.0MB in the end (delta: -2.3MB). Peak memory consumption was 3.7MB. Max. memory is 8.0GB. [2022-10-16 17:10:46,659 INFO L158 Benchmark]: Boogie Preprocessor took 60.57ms. Allocated memory is still 151.0MB. Free memory was 132.0MB in the beginning and 130.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:10:46,660 INFO L158 Benchmark]: RCFGBuilder took 549.96ms. Allocated memory is still 151.0MB. Free memory was 130.7MB in the beginning and 119.1MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 17:10:46,661 INFO L158 Benchmark]: TraceAbstraction took 460.79ms. Allocated memory is still 151.0MB. Free memory was 118.6MB in the beginning and 105.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 17:10:46,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 605.86ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 129.7MB in the end (delta: -25.0MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 151.50ms. Allocated memory is still 151.0MB. Free memory was 129.7MB in the beginning and 132.0MB in the end (delta: -2.3MB). Peak memory consumption was 3.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.57ms. Allocated memory is still 151.0MB. Free memory was 132.0MB in the beginning and 130.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 549.96ms. Allocated memory is still 151.0MB. Free memory was 130.7MB in the beginning and 119.1MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 460.79ms. Allocated memory is still 151.0MB. Free memory was 118.6MB in the beginning and 105.0MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * 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: 283]: 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] CALL displayBits(mask) VAL [\old(c)=1, \old(mask = mask & 1)=65536, \old(mask)=1, \old(value)=1, c=1, mask=1, mask = mask & 1=65536, number1=65535, x=0, y=0] [L283] 1<<31 VAL [\old(c)=1, \old(mask = mask & 1)=65536, \old(mask)=1, \old(value)=1, c=1, mask=1, mask = mask & 1=65536, number1=65535, value=1, x=0, y=0] - UnprovableResult [Line: 279]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 279]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 292]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 292]: 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 2 procedures, 30 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=30occurred 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, 5 NumberOfCodeBlocks, 5 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 RESULT: Ultimate proved your program to be incorrect! [2022-10-16 17:10:46,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...