/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-crafted/SyntaxSupportPointer01-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:51:47,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:51:47,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:51:47,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:51:47,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:51:47,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:51:47,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:51:47,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:51:47,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:51:47,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:51:47,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:51:47,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:51:47,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:51:47,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:51:47,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:51:47,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:51:47,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:51:47,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:51:47,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:51:47,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:51:47,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:51:47,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:51:47,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:51:47,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:51:47,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:51:47,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:51:47,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:51:47,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:51:47,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:51:47,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:51:47,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:51:47,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:51:47,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:51:47,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:51:47,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:51:47,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:51:47,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:51:47,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:51:47,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:51:47,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:51:47,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:51:47,364 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 17:51:47,423 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:51:47,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:51:47,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:51:47,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:51:47,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:51:47,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:51:47,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:51:47,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:51:47,428 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:51:47,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:51:47,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:51:47,428 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:51:47,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:51:47,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:51:47,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:51:47,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:51:47,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:51:47,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:51:47,431 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:51:47,431 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:51:47,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:51:47,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:51:47,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:51:47,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:51:47,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:51:47,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:51:47,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:51:47,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:51:47,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:51:47,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:51:47,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:51:47,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:51:47,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:51:47,435 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:51:47,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:51:47,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:51:47,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:51:47,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:51:47,859 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:51:47,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2022-10-16 17:51:47,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a094d0852/2312d8607aa54351bee76155b4b91572/FLAG38e378240 [2022-10-16 17:51:48,564 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:51:48,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2022-10-16 17:51:48,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a094d0852/2312d8607aa54351bee76155b4b91572/FLAG38e378240 [2022-10-16 17:51:48,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a094d0852/2312d8607aa54351bee76155b4b91572 [2022-10-16 17:51:48,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:51:48,938 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:51:48,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:51:48,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:51:48,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:51:48,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:51:48" (1/1) ... [2022-10-16 17:51:48,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c21bc82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:48, skipping insertion in model container [2022-10-16 17:51:48,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:51:48" (1/1) ... [2022-10-16 17:51:48,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:51:48,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:51:49,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:51:49,133 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:51:49,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:51:49,159 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:51:49,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49 WrapperNode [2022-10-16 17:51:49,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:51:49,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:51:49,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:51:49,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:51:49,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,195 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-10-16 17:51:49,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:51:49,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:51:49,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:51:49,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:51:49,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,216 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:51:49,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:51:49,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:51:49,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:51:49,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (1/1) ... [2022-10-16 17:51:49,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:51:49,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:51:49,255 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 17:51:49,273 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 17:51:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:51:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 17:51:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:51:49,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:51:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:51:49,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:51:49,387 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:51:49,390 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:51:49,565 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:51:49,574 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:51:49,574 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:51:49,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:51:49 BoogieIcfgContainer [2022-10-16 17:51:49,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:51:49,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:51:49,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:51:49,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:51:49,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:51:48" (1/3) ... [2022-10-16 17:51:49,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412488b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:51:49, skipping insertion in model container [2022-10-16 17:51:49,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:51:49" (2/3) ... [2022-10-16 17:51:49,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412488b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:51:49, skipping insertion in model container [2022-10-16 17:51:49,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:51:49" (3/3) ... [2022-10-16 17:51:49,594 INFO L112 eAbstractionObserver]: Analyzing ICFG SyntaxSupportPointer01-3.c [2022-10-16 17:51:49,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:51:49,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 17:51:49,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:51:49,718 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;@53374f49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:51:49,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 17:51:49,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:51:49,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 17:51:49,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:51:49,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 17:51:49,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:51:49,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:51:49,758 INFO L85 PathProgramCache]: Analyzing trace with hash 28695845, now seen corresponding path program 1 times [2022-10-16 17:51:49,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:51:49,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621532903] [2022-10-16 17:51:49,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:51:49,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:51:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:51:49,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 17:51:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:51:50,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 17:51:50,013 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 17:51:50,015 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-10-16 17:51:50,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-10-16 17:51:50,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:51:50,028 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-16 17:51:50,035 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:51:50,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:51:50 BoogieIcfgContainer [2022-10-16 17:51:50,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:51:50,068 INFO L158 Benchmark]: Toolchain (without parser) took 1131.68ms. Allocated memory is still 152.0MB. Free memory was 125.9MB in the beginning and 129.1MB in the end (delta: -3.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:51:50,069 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 152.0MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:51:50,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.97ms. Allocated memory is still 152.0MB. Free memory was 125.8MB in the beginning and 117.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-10-16 17:51:50,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.62ms. Allocated memory is still 152.0MB. Free memory was 117.0MB in the beginning and 115.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:51:50,074 INFO L158 Benchmark]: Boogie Preprocessor took 22.87ms. Allocated memory is still 152.0MB. Free memory was 115.6MB in the beginning and 114.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:51:50,079 INFO L158 Benchmark]: RCFGBuilder took 356.91ms. Allocated memory is still 152.0MB. Free memory was 114.4MB in the beginning and 105.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-10-16 17:51:50,080 INFO L158 Benchmark]: TraceAbstraction took 484.30ms. Allocated memory is still 152.0MB. Free memory was 104.5MB in the beginning and 129.1MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:51:50,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 152.0MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.97ms. Allocated memory is still 152.0MB. Free memory was 125.8MB in the beginning and 117.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.62ms. Allocated memory is still 152.0MB. Free memory was 117.0MB in the beginning and 115.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.87ms. Allocated memory is still 152.0MB. Free memory was 115.6MB in the beginning and 114.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 356.91ms. Allocated memory is still 152.0MB. Free memory was 114.4MB in the beginning and 105.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 484.30ms. Allocated memory is still 152.0MB. Free memory was 104.5MB in the beginning and 129.1MB in the end (delta: -24.7MB). 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: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int *p = malloc(sizeof(int)); [L15] EXPR \read(*p) VAL [\read(*p)=2147483649, p={-1:0}] [L15] COND TRUE *p >= 0 [L16] EXPR \read(*p) [L16] (*p)-- VAL [(*p)--=2147483649, \read(*p)=2147483649, p={-1:0}] - UnprovableResult [Line: 16]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 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=12occurred 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 17:51:50,153 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...