/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-recursive-malloc/rec_malloc_ex7B.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:27:51,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:27:51,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:27:51,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:27:51,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:27:51,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:27:51,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:27:51,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:27:51,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:27:51,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:27:51,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:27:51,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:27:51,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:27:51,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:27:51,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:27:51,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:27:51,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:27:51,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:27:51,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:27:51,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:27:51,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:27:51,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:27:51,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:27:51,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:27:51,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:27:51,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:27:51,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:27:51,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:27:51,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:27:51,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:27:51,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:27:51,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:27:51,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:27:51,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:27:51,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:27:51,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:27:51,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:27:51,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:27:51,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:27:51,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:27:51,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:27:51,462 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 17:27:51,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:27:51,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:27:51,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:27:51,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:27:51,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:27:51,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:27:51,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:27:51,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:27:51,494 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:27:51,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:27:51,495 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:27:51,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:27:51,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:27:51,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:27:51,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:27:51,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:27:51,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:27:51,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:27:51,497 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:27:51,497 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:27:51,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:27:51,497 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:27:51,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:27:51,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:27:51,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:27:51,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:27:51,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:51,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:27:51,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:27:51,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:27:51,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:27:51,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:27:51,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:27:51,500 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:27:51,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:27:51,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:27:51,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:27:51,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:27:51,945 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:27:51,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i [2022-10-16 17:27:52,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f1ff959/2dcfae98126d405abe8c8fc3053c006a/FLAG5afa289f6 [2022-10-16 17:27:52,569 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:27:52,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex7B.i [2022-10-16 17:27:52,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f1ff959/2dcfae98126d405abe8c8fc3053c006a/FLAG5afa289f6 [2022-10-16 17:27:52,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f1ff959/2dcfae98126d405abe8c8fc3053c006a [2022-10-16 17:27:52,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:27:52,934 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:27:52,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:52,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:27:52,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:27:52,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:52" (1/1) ... [2022-10-16 17:27:52,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1153aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:52, skipping insertion in model container [2022-10-16 17:27:52,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:52" (1/1) ... [2022-10-16 17:27:52,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:27:52,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:27:53,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:53,213 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:27:53,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:53,246 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:27:53,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53 WrapperNode [2022-10-16 17:27:53,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:53,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:53,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:27:53,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:27:53,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,286 INFO L138 Inliner]: procedures = 12, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-10-16 17:27:53,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:53,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:27:53,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:27:53,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:27:53,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:27:53,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:27:53,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:27:53,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:27:53,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (1/1) ... [2022-10-16 17:27:53,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:53,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:53,352 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 17:27:53,372 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 17:27:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:27:53,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 17:27:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-10-16 17:27:53,417 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-10-16 17:27:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-10-16 17:27:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-10-16 17:27:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:27:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:27:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:27:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:27:53,523 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:27:53,525 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:27:53,825 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:27:53,836 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:27:53,836 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 17:27:53,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:53 BoogieIcfgContainer [2022-10-16 17:27:53,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:27:53,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:27:53,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:27:53,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:27:53,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:27:52" (1/3) ... [2022-10-16 17:27:53,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4ef262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:53, skipping insertion in model container [2022-10-16 17:27:53,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:53" (2/3) ... [2022-10-16 17:27:53,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4ef262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:53, skipping insertion in model container [2022-10-16 17:27:53,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:53" (3/3) ... [2022-10-16 17:27:53,860 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_malloc_ex7B.i [2022-10-16 17:27:53,894 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:27:53,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 17:27:53,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:27:53,955 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;@1e85097b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:27:53,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 17:27:53,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 18 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 17:27:53,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 17:27:53,968 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:53,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 17:27:53,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:27:53,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:53,976 INFO L85 PathProgramCache]: Analyzing trace with hash 45876219, now seen corresponding path program 1 times [2022-10-16 17:27:53,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:53,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551515188] [2022-10-16 17:27:53,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:53,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:27:54,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 17:27:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:27:54,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 17:27:54,247 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 17:27:54,249 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 17:27:54,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 17:27:54,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 17:27:54,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 17:27:54,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:27:54,261 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-16 17:27:54,268 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:27:54,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:27:54 BoogieIcfgContainer [2022-10-16 17:27:54,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:27:54,302 INFO L158 Benchmark]: Toolchain (without parser) took 1368.76ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 125.8MB in the end (delta: -230.1kB). Peak memory consumption was 109.0kB. Max. memory is 8.0GB. [2022-10-16 17:27:54,304 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:27:54,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.11ms. Allocated memory is still 151.0MB. Free memory was 125.4MB in the beginning and 116.2MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:27:54,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.31ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 114.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:27:54,308 INFO L158 Benchmark]: Boogie Preprocessor took 24.92ms. Allocated memory is still 151.0MB. Free memory was 114.7MB in the beginning and 113.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:27:54,312 INFO L158 Benchmark]: RCFGBuilder took 525.65ms. Allocated memory is still 151.0MB. Free memory was 113.6MB in the beginning and 102.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 17:27:54,313 INFO L158 Benchmark]: TraceAbstraction took 453.79ms. Allocated memory is still 151.0MB. Free memory was 101.7MB in the beginning and 125.8MB in the end (delta: -24.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:27:54,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 307.11ms. Allocated memory is still 151.0MB. Free memory was 125.4MB in the beginning and 116.2MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.31ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 114.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.92ms. Allocated memory is still 151.0MB. Free memory was 114.7MB in the beginning and 113.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 525.65ms. Allocated memory is still 151.0MB. Free memory was 113.6MB in the beginning and 102.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 453.79ms. Allocated memory is still 151.0MB. Free memory was 101.7MB in the beginning and 125.8MB in the end (delta: -24.1MB). There was no memory consumed. 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: 13]: integer overflow possible integer overflow possible We found a FailurePath: [L37] int *p1 = malloc(sizeof(int)); [L38] int *p2 = malloc(sizeof(int)); [L40] *p1 = __VERIFIER_nondet_int() [L41] *p2 = __VERIFIER_nondet_int() [L43] CALL f(p1,p2) VAL [p={-2:0}, q={-1:0}] [L13] EXPR \read(*p) [L13] EXPR \read(*q) VAL [\read(*p)=2147483646, \read(*q)=2, p={-2:0}, p={-2:0}, q={-1:0}, q={-1:0}] [L13] *p + *q VAL [\read(*p)=2147483646, \read(*q)=2, p={-2:0}, p={-2:0}, q={-1:0}, q={-1:0}] - UnprovableResult [Line: 13]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: 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 3 procedures, 23 locations, 4 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=23occurred 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, 0.1s 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 17:27:54,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...