/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-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 18:00:29,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 18:00:29,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 18:00:29,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 18:00:29,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 18:00:29,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 18:00:29,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 18:00:29,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 18:00:29,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 18:00:29,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 18:00:29,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 18:00:29,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 18:00:29,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 18:00:29,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 18:00:29,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 18:00:29,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 18:00:29,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 18:00:29,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 18:00:29,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 18:00:29,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 18:00:29,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 18:00:29,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 18:00:29,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 18:00:29,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 18:00:29,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 18:00:29,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 18:00:29,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 18:00:29,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 18:00:29,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 18:00:29,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 18:00:29,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 18:00:29,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 18:00:29,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 18:00:29,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 18:00:29,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 18:00:29,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 18:00:29,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 18:00:29,492 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 18:00:29,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 18:00:29,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 18:00:29,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 18:00:29,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 18:00:29,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 18:00:29,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 18:00:29,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 18:00:29,496 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 18:00:29,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 18:00:29,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 18:00:29,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 18:00:29,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 18:00:29,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 18:00:29,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 18:00:29,498 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 18:00:29,498 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 18:00:29,498 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 18:00:29,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 18:00:29,499 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 18:00:29,499 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 18:00:29,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 18:00:29,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 18:00:29,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 18:00:29,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 18:00:29,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 18:00:29,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 18:00:29,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 18:00:29,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 18:00:29,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 18:00:29,502 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 18:00:29,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 18:00:29,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 18:00:29,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 18:00:29,932 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 18:00:29,933 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 18:00:29,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2022-10-15 18:00:30,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6205e0da6/56d4463eae5242af87469cc00c018a12/FLAG3868cf161 [2022-10-15 18:00:30,681 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 18:00:30,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex5B.i [2022-10-15 18:00:30,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6205e0da6/56d4463eae5242af87469cc00c018a12/FLAG3868cf161 [2022-10-15 18:00:30,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6205e0da6/56d4463eae5242af87469cc00c018a12 [2022-10-15 18:00:31,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 18:00:31,009 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 18:00:31,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 18:00:31,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 18:00:31,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 18:00:31,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a01bdfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31, skipping insertion in model container [2022-10-15 18:00:31,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 18:00:31,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 18:00:31,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 18:00:31,230 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 18:00:31,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 18:00:31,266 INFO L208 MainTranslator]: Completed translation [2022-10-15 18:00:31,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31 WrapperNode [2022-10-15 18:00:31,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 18:00:31,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 18:00:31,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 18:00:31,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 18:00:31,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,307 INFO L138 Inliner]: procedures = 12, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2022-10-15 18:00:31,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 18:00:31,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 18:00:31,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 18:00:31,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 18:00:31,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,336 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 18:00:31,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 18:00:31,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 18:00:31,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 18:00:31,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (1/1) ... [2022-10-15 18:00:31,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 18:00:31,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 18:00:31,374 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) [2022-10-15 18:00:31,383 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 [2022-10-15 18:00:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 18:00:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 18:00:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-10-15 18:00:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-10-15 18:00:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure g [2022-10-15 18:00:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2022-10-15 18:00:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 18:00:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 18:00:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 18:00:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 18:00:31,526 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 18:00:31,529 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 18:00:32,124 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 18:00:32,141 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 18:00:32,145 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 18:00:32,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:00:32 BoogieIcfgContainer [2022-10-15 18:00:32,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 18:00:32,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 18:00:32,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 18:00:32,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 18:00:32,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:00:31" (1/3) ... [2022-10-15 18:00:32,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651af193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:00:32, skipping insertion in model container [2022-10-15 18:00:32,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:00:31" (2/3) ... [2022-10-15 18:00:32,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651af193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:00:32, skipping insertion in model container [2022-10-15 18:00:32,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:00:32" (3/3) ... [2022-10-15 18:00:32,167 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_malloc_ex5B.i [2022-10-15 18:00:32,197 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 18:00:32,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2022-10-15 18:00:32,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 18:00:32,308 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@7d25aea5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 18:00:32,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-10-15 18:00:32,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 50 states have (on average 1.9) internal successors, (95), 89 states have internal predecessors, (95), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 18:00:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-15 18:00:32,343 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 18:00:32,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-15 18:00:32,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0ASSERT_VIOLATIONMEMORY_FREE, fErr1ASSERT_VIOLATIONMEMORY_FREE, fErr2ASSERT_VIOLATIONMEMORY_FREE, fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-10-15 18:00:32,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 18:00:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash 106318, now seen corresponding path program 1 times [2022-10-15 18:00:32,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 18:00:32,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869415624] [2022-10-15 18:00:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 18:00:32,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 18:00:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 18:00:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 18:00:32,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 18:00:32,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869415624] [2022-10-15 18:00:32,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869415624] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 18:00:32,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 18:00:32,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 18:00:32,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127948437] [2022-10-15 18:00:32,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 18:00:32,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 18:00:32,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 18:00:32,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 18:00:32,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:00:32,726 INFO L87 Difference]: Start difference. First operand has 97 states, 50 states have (on average 1.9) internal successors, (95), 89 states have internal predecessors, (95), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-10-15 18:00:32,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 18:00:32,917 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2022-10-15 18:00:32,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 18:00:32,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-10-15 18:00:32,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 18:00:32,937 INFO L225 Difference]: With dead ends: 99 [2022-10-15 18:00:32,937 INFO L226 Difference]: Without dead ends: 95 [2022-10-15 18:00:32,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:00:32,949 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 24 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 18:00:32,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 137 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 18:00:32,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-15 18:00:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2022-10-15 18:00:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 49 states have (on average 1.836734693877551) internal successors, (90), 85 states have internal predecessors, (90), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 18:00:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 100 transitions. [2022-10-15 18:00:33,043 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 100 transitions. Word has length 3 [2022-10-15 18:00:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 18:00:33,044 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 100 transitions. [2022-10-15 18:00:33,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-10-15 18:00:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 100 transitions. [2022-10-15 18:00:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-15 18:00:33,045 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 18:00:33,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-15 18:00:33,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 18:00:33,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0ASSERT_VIOLATIONMEMORY_FREE, fErr1ASSERT_VIOLATIONMEMORY_FREE, fErr2ASSERT_VIOLATIONMEMORY_FREE, fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-10-15 18:00:33,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 18:00:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash 106319, now seen corresponding path program 1 times [2022-10-15 18:00:33,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 18:00:33,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738318229] [2022-10-15 18:00:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 18:00:33,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 18:00:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 18:00:33,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 18:00:33,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 18:00:33,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738318229] [2022-10-15 18:00:33,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738318229] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 18:00:33,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 18:00:33,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 18:00:33,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662275590] [2022-10-15 18:00:33,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 18:00:33,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 18:00:33,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 18:00:33,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 18:00:33,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:00:33,249 INFO L87 Difference]: Start difference. First operand 93 states and 100 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-10-15 18:00:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 18:00:33,368 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2022-10-15 18:00:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 18:00:33,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-10-15 18:00:33,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 18:00:33,370 INFO L225 Difference]: With dead ends: 93 [2022-10-15 18:00:33,370 INFO L226 Difference]: Without dead ends: 93 [2022-10-15 18:00:33,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:00:33,372 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 20 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 18:00:33,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 139 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 18:00:33,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-10-15 18:00:33,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2022-10-15 18:00:33,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 49 states have (on average 1.7959183673469388) internal successors, (88), 83 states have internal predecessors, (88), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 18:00:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2022-10-15 18:00:33,386 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 3 [2022-10-15 18:00:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 18:00:33,386 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2022-10-15 18:00:33,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-10-15 18:00:33,387 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2022-10-15 18:00:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 18:00:33,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 18:00:33,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 18:00:33,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 18:00:33,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0ASSERT_VIOLATIONMEMORY_FREE, fErr1ASSERT_VIOLATIONMEMORY_FREE, fErr2ASSERT_VIOLATIONMEMORY_FREE, fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-10-15 18:00:33,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 18:00:33,389 INFO L85 PathProgramCache]: Analyzing trace with hash 102173295, now seen corresponding path program 1 times [2022-10-15 18:00:33,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 18:00:33,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318409550] [2022-10-15 18:00:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 18:00:33,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 18:00:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 18:00:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 18:00:33,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 18:00:33,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318409550] [2022-10-15 18:00:33,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318409550] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 18:00:33,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 18:00:33,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 18:00:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969403509] [2022-10-15 18:00:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 18:00:33,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 18:00:33,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 18:00:33,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 18:00:33,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:00:33,485 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-15 18:00:33,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 18:00:33,548 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2022-10-15 18:00:33,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 18:00:33,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-10-15 18:00:33,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 18:00:33,550 INFO L225 Difference]: With dead ends: 90 [2022-10-15 18:00:33,550 INFO L226 Difference]: Without dead ends: 90 [2022-10-15 18:00:33,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:00:33,553 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 15 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 18:00:33,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 134 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 18:00:33,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-15 18:00:33,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2022-10-15 18:00:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 49 states have (on average 1.7346938775510203) internal successors, (85), 80 states have internal predecessors, (85), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 18:00:33,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2022-10-15 18:00:33,565 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 5 [2022-10-15 18:00:33,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 18:00:33,566 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2022-10-15 18:00:33,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-15 18:00:33,566 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2022-10-15 18:00:33,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 18:00:33,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 18:00:33,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 18:00:33,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 18:00:33,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr0ASSERT_VIOLATIONMEMORY_FREE, fErr1ASSERT_VIOLATIONMEMORY_FREE, fErr2ASSERT_VIOLATIONMEMORY_FREE, fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-10-15 18:00:33,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 18:00:33,574 INFO L85 PathProgramCache]: Analyzing trace with hash 102173296, now seen corresponding path program 1 times [2022-10-15 18:00:33,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 18:00:33,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037355471] [2022-10-15 18:00:33,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 18:00:33,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 18:00:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 18:00:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 18:00:33,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 18:00:33,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037355471] [2022-10-15 18:00:33,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037355471] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 18:00:33,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 18:00:33,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 18:00:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800873944] [2022-10-15 18:00:33,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 18:00:33,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 18:00:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 18:00:33,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 18:00:33,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:00:33,710 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-15 18:00:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 18:00:33,771 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2022-10-15 18:00:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 18:00:33,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-10-15 18:00:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 18:00:33,773 INFO L225 Difference]: With dead ends: 87 [2022-10-15 18:00:33,773 INFO L226 Difference]: Without dead ends: 87 [2022-10-15 18:00:33,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:00:33,776 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 12 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 18:00:33,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 142 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 18:00:33,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-15 18:00:33,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-10-15 18:00:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 77 states have internal predecessors, (82), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 18:00:33,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2022-10-15 18:00:33,787 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 5 [2022-10-15 18:00:33,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 18:00:33,788 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2022-10-15 18:00:33,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-15 18:00:33,789 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2022-10-15 18:00:33,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 18:00:33,789 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 18:00:33,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 18:00:33,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 18:00:33,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [fErr0ASSERT_VIOLATIONMEMORY_FREE, fErr1ASSERT_VIOLATIONMEMORY_FREE, fErr2ASSERT_VIOLATIONMEMORY_FREE, fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-10-15 18:00:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 18:00:33,791 INFO L85 PathProgramCache]: Analyzing trace with hash 730693121, now seen corresponding path program 1 times [2022-10-15 18:00:33,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 18:00:33,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228474334] [2022-10-15 18:00:33,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 18:00:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 18:00:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 18:00:33,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 18:00:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 18:00:33,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 18:00:33,853 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 18:00:33,855 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (38 of 39 remaining) [2022-10-15 18:00:33,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr0ASSERT_VIOLATIONMEMORY_FREE (37 of 39 remaining) [2022-10-15 18:00:33,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr1ASSERT_VIOLATIONMEMORY_FREE (36 of 39 remaining) [2022-10-15 18:00:33,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr2ASSERT_VIOLATIONMEMORY_FREE (35 of 39 remaining) [2022-10-15 18:00:33,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 39 remaining) [2022-10-15 18:00:33,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 39 remaining) [2022-10-15 18:00:33,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 39 remaining) [2022-10-15 18:00:33,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 39 remaining) [2022-10-15 18:00:33,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 39 remaining) [2022-10-15 18:00:33,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 39 remaining) [2022-10-15 18:00:33,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 39 remaining) [2022-10-15 18:00:33,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 39 remaining) [2022-10-15 18:00:33,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 39 remaining) [2022-10-15 18:00:33,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location fErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 39 remaining) [2022-10-15 18:00:33,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 39 remaining) [2022-10-15 18:00:33,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 39 remaining) [2022-10-15 18:00:33,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr2ASSERT_VIOLATIONMEMORY_FREE (22 of 39 remaining) [2022-10-15 18:00:33,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr3ASSERT_VIOLATIONMEMORY_FREE (21 of 39 remaining) [2022-10-15 18:00:33,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr4ASSERT_VIOLATIONMEMORY_FREE (20 of 39 remaining) [2022-10-15 18:00:33,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 39 remaining) [2022-10-15 18:00:33,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 39 remaining) [2022-10-15 18:00:33,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 39 remaining) [2022-10-15 18:00:33,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 39 remaining) [2022-10-15 18:00:33,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr9ASSERT_VIOLATIONMEMORY_FREE (15 of 39 remaining) [2022-10-15 18:00:33,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr10ASSERT_VIOLATIONMEMORY_FREE (14 of 39 remaining) [2022-10-15 18:00:33,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location gErr11ASSERT_VIOLATIONMEMORY_FREE (13 of 39 remaining) [2022-10-15 18:00:33,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 39 remaining) [2022-10-15 18:00:33,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 39 remaining) [2022-10-15 18:00:33,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 39 remaining) [2022-10-15 18:00:33,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 39 remaining) [2022-10-15 18:00:33,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 39 remaining) [2022-10-15 18:00:33,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 39 remaining) [2022-10-15 18:00:33,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 39 remaining) [2022-10-15 18:00:33,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 39 remaining) [2022-10-15 18:00:33,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 39 remaining) [2022-10-15 18:00:33,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 39 remaining) [2022-10-15 18:00:33,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_FREE (2 of 39 remaining) [2022-10-15 18:00:33,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_FREE (1 of 39 remaining) [2022-10-15 18:00:33,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_FREE (0 of 39 remaining) [2022-10-15 18:00:33,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 18:00:33,875 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-15 18:00:33,880 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 18:00:33,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:00:33 BoogieIcfgContainer [2022-10-15 18:00:33,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 18:00:33,914 INFO L158 Benchmark]: Toolchain (without parser) took 2909.73ms. Allocated memory is still 161.5MB. Free memory was 135.6MB in the beginning and 68.6MB in the end (delta: 67.0MB). Peak memory consumption was 67.6MB. Max. memory is 8.0GB. [2022-10-15 18:00:33,914 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 18:00:33,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.58ms. Allocated memory is still 161.5MB. Free memory was 135.4MB in the beginning and 125.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-15 18:00:33,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.46ms. Allocated memory is still 161.5MB. Free memory was 125.7MB in the beginning and 124.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 18:00:33,918 INFO L158 Benchmark]: Boogie Preprocessor took 31.92ms. Allocated memory is still 161.5MB. Free memory was 124.3MB in the beginning and 122.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 18:00:33,918 INFO L158 Benchmark]: RCFGBuilder took 809.25ms. Allocated memory is still 161.5MB. Free memory was 122.8MB in the beginning and 140.0MB in the end (delta: -17.2MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. [2022-10-15 18:00:33,922 INFO L158 Benchmark]: TraceAbstraction took 1757.34ms. Allocated memory is still 161.5MB. Free memory was 139.5MB in the beginning and 68.6MB in the end (delta: 70.8MB). Peak memory consumption was 71.3MB. Max. memory is 8.0GB. [2022-10-15 18:00:33,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 256.58ms. Allocated memory is still 161.5MB. Free memory was 135.4MB in the beginning and 125.7MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.46ms. Allocated memory is still 161.5MB. Free memory was 125.7MB in the beginning and 124.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.92ms. Allocated memory is still 161.5MB. Free memory was 124.3MB in the beginning and 122.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 809.25ms. Allocated memory is still 161.5MB. Free memory was 122.8MB in the beginning and 140.0MB in the end (delta: -17.2MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1757.34ms. Allocated memory is still 161.5MB. Free memory was 139.5MB in the beginning and 68.6MB in the end (delta: 70.8MB). Peak memory consumption was 71.3MB. 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 - UnprovableResult [Line: 67]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 67. Possible FailurePath: [L69] int *p1 = malloc(sizeof(int)); [L70] int *p2 = malloc(sizeof(int)); [L73] *p1 = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-1, p1={-3:0}, p2={-2:0}] [L74] *p2 = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=2, p1={-3:0}, p2={-2:0}] [L76] EXPR \read(*p1) VAL [\read(*p1)=-1, p1={-3:0}, p2={-2:0}] [L76] *p1 < 0 || *p2 < 0 VAL [*p1 < 0 || *p2 < 0=1, \read(*p1)=-1, p1={-3:0}, p2={-2:0}] [L76] COND TRUE *p1 < 0 || *p2 < 0 [L77] return 0; VAL [\result=0, p1={-3:0}, p2={-2:0}] - UnprovableResult [Line: 18]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 97 locations, 39 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 552 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 149 IncrementalHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 353 mSDtfsCounter, 149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 could not prove your program: unable to determine feasibility of some traces [2022-10-15 18:00:33,988 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...