java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memset3_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 16:13:45,186 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 16:13:45,187 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 16:13:45,198 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 16:13:45,198 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 16:13:45,198 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 16:13:45,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 16:13:45,200 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 16:13:45,201 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 16:13:45,202 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 16:13:45,203 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 16:13:45,203 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 16:13:45,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 16:13:45,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 16:13:45,205 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 16:13:45,207 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 16:13:45,208 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 16:13:45,210 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 16:13:45,211 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 16:13:45,211 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 16:13:45,213 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 16:13:45,213 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 16:13:45,213 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 16:13:45,214 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 16:13:45,215 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 16:13:45,216 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 16:13:45,216 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 16:13:45,216 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 16:13:45,217 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 16:13:45,217 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 16:13:45,218 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 16:13:45,218 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-10 16:13:45,234 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 16:13:45,235 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 16:13:45,236 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 16:13:45,236 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 16:13:45,236 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 16:13:45,236 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 16:13:45,236 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 16:13:45,237 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 16:13:45,237 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 16:13:45,237 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 16:13:45,237 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 16:13:45,237 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 16:13:45,237 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 16:13:45,237 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 16:13:45,238 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 16:13:45,238 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 16:13:45,238 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 16:13:45,238 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 16:13:45,238 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 16:13:45,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 16:13:45,239 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 16:13:45,239 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-10 16:13:45,239 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-10 16:13:45,239 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-04-10 16:13:45,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 16:13:45,276 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 16:13:45,280 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 16:13:45,281 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 16:13:45,281 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 16:13:45,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset3_false-valid-deref-write.c [2018-04-10 16:13:45,548 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG91320af85 [2018-04-10 16:13:45,629 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 16:13:45,629 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 16:13:45,630 INFO L168 CDTParser]: Scanning memset3_false-valid-deref-write.c [2018-04-10 16:13:45,631 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 16:13:45,631 INFO L215 ultiparseSymbolTable]: [2018-04-10 16:13:45,631 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 16:13:45,631 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memset3_false-valid-deref-write.c [2018-04-10 16:13:45,631 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 16:13:45,631 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c____u32 in memset3_false-valid-deref-write.c [2018-04-10 16:13:45,631 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c____kernel_size_t in memset3_false-valid-deref-write.c [2018-04-10 16:13:45,631 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c__size_t in memset3_false-valid-deref-write.c [2018-04-10 16:13:45,646 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG91320af85 [2018-04-10 16:13:45,649 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 16:13:45,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 16:13:45,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 16:13:45,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 16:13:45,656 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 16:13:45,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd29645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45, skipping insertion in model container [2018-04-10 16:13:45,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,671 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:13:45,678 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:13:45,761 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:13:45,782 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:13:45,787 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-04-10 16:13:45,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45 WrapperNode [2018-04-10 16:13:45,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 16:13:45,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 16:13:45,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 16:13:45,795 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 16:13:45,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (1/1) ... [2018-04-10 16:13:45,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 16:13:45,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 16:13:45,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 16:13:45,822 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 16:13:45,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 16:13:45,881 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 16:13:45,881 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 16:13:45,881 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 16:13:45,882 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-04-10 16:13:45,882 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-10 16:13:45,882 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 16:13:45,882 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 16:13:45,882 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-04-10 16:13:45,882 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 16:13:45,882 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 16:13:45,882 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 16:13:46,016 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-10 16:13:46,109 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 16:13:46,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:13:46 BoogieIcfgContainer [2018-04-10 16:13:46,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 16:13:46,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 16:13:46,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 16:13:46,113 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 16:13:46,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 04:13:45" (1/3) ... [2018-04-10 16:13:46,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@967587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:13:46, skipping insertion in model container [2018-04-10 16:13:46,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:13:45" (2/3) ... [2018-04-10 16:13:46,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@967587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:13:46, skipping insertion in model container [2018-04-10 16:13:46,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:13:46" (3/3) ... [2018-04-10 16:13:46,116 INFO L107 eAbstractionObserver]: Analyzing ICFG memset3_false-valid-deref-write.c [2018-04-10 16:13:46,123 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-10 16:13:46,129 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-04-10 16:13:46,161 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 16:13:46,162 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 16:13:46,162 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 16:13:46,162 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-10 16:13:46,163 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-10 16:13:46,163 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 16:13:46,163 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 16:13:46,163 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 16:13:46,163 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 16:13:46,164 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 16:13:46,172 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-04-10 16:13:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-10 16:13:46,179 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:13:46,180 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:13:46,180 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:13:46,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1417793591, now seen corresponding path program 1 times [2018-04-10 16:13:46,184 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:13:46,184 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:13:46,212 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:13:46,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:13:46,213 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:13:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:13:46,245 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:13:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 16:13:46,306 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:13:46,306 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 16:13:46,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 16:13:46,315 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 16:13:46,316 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-10 16:13:46,317 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2018-04-10 16:13:46,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:13:46,365 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-04-10 16:13:46,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 16:13:46,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-04-10 16:13:46,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:13:46,372 INFO L225 Difference]: With dead ends: 22 [2018-04-10 16:13:46,373 INFO L226 Difference]: Without dead ends: 19 [2018-04-10 16:13:46,374 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-10 16:13:46,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-04-10 16:13:46,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-04-10 16:13:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-04-10 16:13:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-04-10 16:13:46,397 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 8 [2018-04-10 16:13:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:13:46,398 INFO L459 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-04-10 16:13:46,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 16:13:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-04-10 16:13:46,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-04-10 16:13:46,398 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:13:46,398 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:13:46,398 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:13:46,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1417793592, now seen corresponding path program 1 times [2018-04-10 16:13:46,399 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:13:46,399 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:13:46,400 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:13:46,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:13:46,400 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:13:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:13:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:13:46,435 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 16:13:46,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 04:13:46 BoogieIcfgContainer [2018-04-10 16:13:46,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 16:13:46,447 INFO L168 Benchmark]: Toolchain (without parser) took 796.83 ms. Allocated memory was 400.0 MB in the beginning and 603.5 MB in the end (delta: 203.4 MB). Free memory was 337.8 MB in the beginning and 536.9 MB in the end (delta: -199.1 MB). Peak memory consumption was 4.3 MB. Max. memory is 5.3 GB. [2018-04-10 16:13:46,448 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 400.0 MB. Free memory is still 359.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:13:46,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.07 ms. Allocated memory is still 400.0 MB. Free memory was 337.8 MB in the beginning and 329.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-04-10 16:13:46,449 INFO L168 Benchmark]: Boogie Preprocessor took 26.87 ms. Allocated memory is still 400.0 MB. Free memory was 329.8 MB in the beginning and 327.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-10 16:13:46,449 INFO L168 Benchmark]: RCFGBuilder took 287.29 ms. Allocated memory was 400.0 MB in the beginning and 603.5 MB in the end (delta: 203.4 MB). Free memory was 327.2 MB in the beginning and 568.9 MB in the end (delta: -241.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 5.3 GB. [2018-04-10 16:13:46,450 INFO L168 Benchmark]: TraceAbstraction took 336.08 ms. Allocated memory is still 603.5 MB. Free memory was 568.9 MB in the beginning and 536.9 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 5.3 GB. [2018-04-10 16:13:46,452 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 400.0 MB. Free memory is still 359.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 143.07 ms. Allocated memory is still 400.0 MB. Free memory was 337.8 MB in the beginning and 329.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.87 ms. Allocated memory is still 400.0 MB. Free memory was 329.8 MB in the beginning and 327.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 287.29 ms. Allocated memory was 400.0 MB in the beginning and 603.5 MB in the end (delta: 203.4 MB). Free memory was 327.2 MB in the beginning and 568.9 MB in the end (delta: -241.7 MB). Peak memory consumption was 25.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 336.08 ms. Allocated memory is still 603.5 MB. Free memory was 568.9 MB in the beginning and 536.9 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 29]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L26] FCALL struct ppp_comp_stats cstats ; VAL [cstats={82:0}] [L27] void *point; [L28] point = (void *)(& cstats) VAL [cstats={82:0}, point={82:0}] [L29] FCALL memset(point, 0, 81UL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 3 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 5 SDslu, 21 SDs, 0 SdLazy, 17 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_16-13-46-460.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_16-13-46-460.csv Received shutdown request...