/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_ex6.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:27:48,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:27:48,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:27:48,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:27:48,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:27:48,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:27:48,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:27:48,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:27:48,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:27:48,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:27:48,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:27:48,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:27:48,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:27:48,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:27:48,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:27:48,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:27:48,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:27:48,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:27:48,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:27:48,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:27:48,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:27:48,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:27:48,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:27:48,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:27:48,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:27:48,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:27:48,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:27:48,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:27:48,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:27:48,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:27:48,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:27:48,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:27:48,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:27:48,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:27:48,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:27:48,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:27:48,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:27:48,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:27:48,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:27:48,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:27:48,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:27:48,228 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 17:27:48,277 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:27:48,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:27:48,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:27:48,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:27:48,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:27:48,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:27:48,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:27:48,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:27:48,283 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:27:48,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:27:48,284 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:27:48,284 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:27:48,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:27:48,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:27:48,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:27:48,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:27:48,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:27:48,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:27:48,285 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:27:48,285 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:27:48,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:27:48,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:27:48,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:27:48,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:27:48,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:27:48,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:27:48,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:48,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:27:48,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:27:48,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:27:48,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:27:48,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:27:48,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:27:48,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:27:48,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:27:48,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:27:48,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:27:48,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:27:48,714 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:27:48,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex6.i [2022-10-16 17:27:48,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8639e06/b86fc87e31624ec58c4806c84532207c/FLAGe813a1463 [2022-10-16 17:27:49,296 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:27:49,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex6.i [2022-10-16 17:27:49,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8639e06/b86fc87e31624ec58c4806c84532207c/FLAGe813a1463 [2022-10-16 17:27:49,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8639e06/b86fc87e31624ec58c4806c84532207c [2022-10-16 17:27:49,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:27:49,688 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:27:49,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:49,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:27:49,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:27:49,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33711e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49, skipping insertion in model container [2022-10-16 17:27:49,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:27:49,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:27:49,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:49,891 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:27:49,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:27:49,928 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:27:49,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49 WrapperNode [2022-10-16 17:27:49,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:27:49,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:49,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:27:49,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:27:49,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,969 INFO L138 Inliner]: procedures = 12, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2022-10-16 17:27:49,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:27:49,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:27:49,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:27:49,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:27:49,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,991 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:49,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:27:49,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:27:49,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:27:49,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:27:49,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (1/1) ... [2022-10-16 17:27:50,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:27:50,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:27:50,037 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 17:27:50,061 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 17:27:50,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:27:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 17:27:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-10-16 17:27:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-10-16 17:27:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:27:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:27:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:27:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:27:50,202 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:27:50,205 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:27:50,497 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:27:50,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:27:50,511 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 17:27:50,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:50 BoogieIcfgContainer [2022-10-16 17:27:50,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:27:50,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:27:50,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:27:50,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:27:50,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:27:49" (1/3) ... [2022-10-16 17:27:50,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449f6353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:50, skipping insertion in model container [2022-10-16 17:27:50,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:27:49" (2/3) ... [2022-10-16 17:27:50,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449f6353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:27:50, skipping insertion in model container [2022-10-16 17:27:50,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:27:50" (3/3) ... [2022-10-16 17:27:50,530 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_malloc_ex6.i [2022-10-16 17:27:50,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:27:50,552 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 17:27:50,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:27:50,620 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;@508733e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:27:50,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 17:27:50,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.588235294117647) internal successors, (27), 27 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:27:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-16 17:27:50,651 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:27:50,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-16 17:27:50,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2022-10-16 17:27:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:27:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash 44751, now seen corresponding path program 1 times [2022-10-16 17:27:50,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:27:50,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423443967] [2022-10-16 17:27:50,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:27:50,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:27:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:27:50,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 17:27:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:27:50,854 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 17:27:50,857 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 17:27:50,858 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-10-16 17:27:50,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-10-16 17:27:50,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-10-16 17:27:50,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-10-16 17:27:50,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-10-16 17:27:50,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-10-16 17:27:50,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-10-16 17:27:50,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-10-16 17:27:50,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:27:50,869 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-16 17:27:50,876 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:27:50,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:27:50 BoogieIcfgContainer [2022-10-16 17:27:50,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:27:50,903 INFO L158 Benchmark]: Toolchain (without parser) took 1218.39ms. Allocated memory is still 162.5MB. Free memory was 136.9MB in the beginning and 133.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.6MB. Max. memory is 8.0GB. [2022-10-16 17:27:50,904 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 162.5MB. Free memory was 132.1MB in the beginning and 132.0MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:27:50,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.98ms. Allocated memory is still 162.5MB. Free memory was 136.8MB in the beginning and 127.5MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:27:50,906 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.89ms. Allocated memory is still 162.5MB. Free memory was 127.5MB in the beginning and 125.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:27:50,907 INFO L158 Benchmark]: Boogie Preprocessor took 24.11ms. Allocated memory is still 162.5MB. Free memory was 125.9MB in the beginning and 124.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:27:50,908 INFO L158 Benchmark]: RCFGBuilder took 525.26ms. Allocated memory is still 162.5MB. Free memory was 124.8MB in the beginning and 112.5MB in the end (delta: 12.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 17:27:50,909 INFO L158 Benchmark]: TraceAbstraction took 378.74ms. Allocated memory is still 162.5MB. Free memory was 111.8MB in the beginning and 133.6MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:27:50,914 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 162.5MB. Free memory was 132.1MB in the beginning and 132.0MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 239.98ms. Allocated memory is still 162.5MB. Free memory was 136.8MB in the beginning and 127.5MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.89ms. Allocated memory is still 162.5MB. Free memory was 127.5MB in the beginning and 125.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.11ms. Allocated memory is still 162.5MB. Free memory was 125.9MB in the beginning and 124.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 525.26ms. Allocated memory is still 162.5MB. Free memory was 124.8MB in the beginning and 112.5MB in the end (delta: 12.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 378.74ms. Allocated memory is still 162.5MB. Free memory was 111.8MB in the beginning and 133.6MB in the end (delta: -21.8MB). 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: [L46] int *p1 = malloc(sizeof(int)); [L47] int *p2 = malloc(sizeof(int)); [L49] *p1 = __VERIFIER_nondet_int() [L50] *p2 = __VERIFIER_nondet_int() [L52] CALL f(p1,p2) [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: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 31]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - 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 2 procedures, 29 locations, 8 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=29occurred 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, 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 RESULT: Ultimate proved your program to be incorrect! [2022-10-16 17:27:50,969 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...