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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memset3_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 11:53:09,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 11:53:09,328 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 11:53:09,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 11:53:09,346 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 11:53:09,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 11:53:09,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 11:53:09,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 11:53:09,352 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 11:53:09,353 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 11:53:09,354 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 11:53:09,354 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 11:53:09,355 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 11:53:09,356 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 11:53:09,357 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 11:53:09,360 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 11:53:09,362 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 11:53:09,365 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 11:53:09,366 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 11:53:09,367 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 11:53:09,370 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 11:53:09,370 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 11:53:09,370 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 11:53:09,372 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 11:53:09,373 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 11:53:09,374 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 11:53:09,375 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 11:53:09,376 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 11:53:09,376 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 11:53:09,377 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 11:53:09,378 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 11:53:09,378 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-03-23 11:53:09,387 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 11:53:09,388 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 11:53:09,389 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 11:53:09,389 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 11:53:09,389 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 11:53:09,389 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 11:53:09,389 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 11:53:09,390 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 11:53:09,390 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 11:53:09,390 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 11:53:09,391 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 11:53:09,391 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 11:53:09,391 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 11:53:09,391 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 11:53:09,391 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 11:53:09,391 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 11:53:09,392 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 11:53:09,392 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 11:53:09,392 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 11:53:09,392 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 11:53:09,393 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 11:53:09,393 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 11:53:09,393 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 11:53:09,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 11:53:09,393 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 11:53:09,394 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 11:53:09,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 11:53:09,394 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 11:53:09,394 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 11:53:09,394 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 11:53:09,395 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 11:53:09,395 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 11:53:09,396 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 11:53:09,396 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 11:53:09,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 11:53:09,442 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 11:53:09,445 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 11:53:09,446 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 11:53:09,447 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 11:53:09,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset3_false-valid-deref-write.c [2018-03-23 11:53:09,770 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGff387d115 [2018-03-23 11:53:09,894 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 11:53:09,894 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 11:53:09,895 INFO L171 CDTParser]: Scanning memset3_false-valid-deref-write.c [2018-03-23 11:53:09,896 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 11:53:09,896 INFO L215 ultiparseSymbolTable]: [2018-03-23 11:53:09,896 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 11:53:09,897 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memset3_false-valid-deref-write.c [2018-03-23 11:53:09,897 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 11:53:09,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c____u32 in memset3_false-valid-deref-write.c [2018-03-23 11:53:09,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c____kernel_size_t in memset3_false-valid-deref-write.c [2018-03-23 11:53:09,897 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c__size_t in memset3_false-valid-deref-write.c [2018-03-23 11:53:09,912 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGff387d115 [2018-03-23 11:53:09,916 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 11:53:09,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-23 11:53:09,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 11:53:09,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 11:53:09,926 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 11:53:09,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:53:09" (1/1) ... [2018-03-23 11:53:09,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37aed49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:09, skipping insertion in model container [2018-03-23 11:53:09,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:53:09" (1/1) ... [2018-03-23 11:53:09,946 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:53:09,961 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:53:10,097 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:53:10,117 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:53:10,121 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-03-23 11:53:10,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10 WrapperNode [2018-03-23 11:53:10,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 11:53:10,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 11:53:10,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 11:53:10,128 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 11:53:10,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (1/1) ... [2018-03-23 11:53:10,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (1/1) ... [2018-03-23 11:53:10,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (1/1) ... [2018-03-23 11:53:10,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (1/1) ... [2018-03-23 11:53:10,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (1/1) ... [2018-03-23 11:53:10,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (1/1) ... [2018-03-23 11:53:10,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (1/1) ... [2018-03-23 11:53:10,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 11:53:10,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 11:53:10,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 11:53:10,155 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 11:53:10,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (1/1) ... No working directory specified, using /storage/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 [2018-03-23 11:53:10,202 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 11:53:10,202 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 11:53:10,203 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 11:53:10,204 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-03-23 11:53:10,204 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-03-23 11:53:10,204 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 11:53:10,204 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-23 11:53:10,204 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-03-23 11:53:10,204 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 11:53:10,204 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 11:53:10,205 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 11:53:10,357 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-03-23 11:53:10,427 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 11:53:10,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:53:10 BoogieIcfgContainer [2018-03-23 11:53:10,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 11:53:10,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 11:53:10,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 11:53:10,431 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 11:53:10,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 11:53:09" (1/3) ... [2018-03-23 11:53:10,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20eba5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:53:10, skipping insertion in model container [2018-03-23 11:53:10,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:10" (2/3) ... [2018-03-23 11:53:10,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20eba5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:53:10, skipping insertion in model container [2018-03-23 11:53:10,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:53:10" (3/3) ... [2018-03-23 11:53:10,435 INFO L107 eAbstractionObserver]: Analyzing ICFG memset3_false-valid-deref-write.c [2018-03-23 11:53:10,444 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 11:53:10,452 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-03-23 11:53:10,493 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 11:53:10,494 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 11:53:10,495 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 11:53:10,495 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 11:53:10,495 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 11:53:10,495 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 11:53:10,495 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 11:53:10,496 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 11:53:10,496 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 11:53:10,497 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 11:53:10,515 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-03-23 11:53:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-03-23 11:53:10,522 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:53:10,523 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:53:10,523 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:53:10,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970025, now seen corresponding path program 1 times [2018-03-23 11:53:10,531 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:53:10,531 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:53:10,570 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:10,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:53:10,570 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:53:10,622 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:53:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:53:10,719 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:53:10,719 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:53:10,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:53:10,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:53:10,731 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:53:10,733 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-03-23 11:53:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:53:10,795 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-03-23 11:53:10,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-23 11:53:10,797 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-03-23 11:53:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:53:10,805 INFO L225 Difference]: With dead ends: 28 [2018-03-23 11:53:10,805 INFO L226 Difference]: Without dead ends: 24 [2018-03-23 11:53:10,808 INFO L568 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 [2018-03-23 11:53:10,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-03-23 11:53:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-03-23 11:53:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-03-23 11:53:10,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-03-23 11:53:10,835 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 10 [2018-03-23 11:53:10,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:53:10,835 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-03-23 11:53:10,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:53:10,836 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-03-23 11:53:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-03-23 11:53:10,836 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:53:10,836 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:53:10,836 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:53:10,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970026, now seen corresponding path program 1 times [2018-03-23 11:53:10,837 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:53:10,837 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:53:10,838 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:10,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:53:10,838 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:53:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:53:10,884 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-03-23 11:53:10,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 11:53:10 BoogieIcfgContainer [2018-03-23 11:53:10,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 11:53:10,899 INFO L168 Benchmark]: Toolchain (without parser) took 982.05 ms. Allocated memory was 302.0 MB in the beginning and 457.2 MB in the end (delta: 155.2 MB). Free memory was 247.8 MB in the beginning and 397.1 MB in the end (delta: -149.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:10,900 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 302.0 MB. Free memory is still 265.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 11:53:10,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.89 ms. Allocated memory is still 302.0 MB. Free memory was 247.8 MB in the beginning and 237.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:10,901 INFO L168 Benchmark]: Boogie Preprocessor took 26.95 ms. Allocated memory is still 302.0 MB. Free memory was 237.8 MB in the beginning and 235.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:10,902 INFO L168 Benchmark]: RCFGBuilder took 273.20 ms. Allocated memory was 302.0 MB in the beginning and 457.2 MB in the end (delta: 155.2 MB). Free memory was 235.8 MB in the beginning and 427.6 MB in the end (delta: -191.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:10,903 INFO L168 Benchmark]: TraceAbstraction took 469.74 ms. Allocated memory is still 457.2 MB. Free memory was 427.6 MB in the beginning and 397.1 MB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:10,905 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 302.0 MB. Free memory is still 265.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 206.89 ms. Allocated memory is still 302.0 MB. Free memory was 247.8 MB in the beginning and 237.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.95 ms. Allocated memory is still 302.0 MB. Free memory was 237.8 MB in the beginning and 235.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 273.20 ms. Allocated memory was 302.0 MB in the beginning and 457.2 MB in the end (delta: 155.2 MB). Free memory was 235.8 MB in the beginning and 427.6 MB in the end (delta: -191.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 469.74 ms. Allocated memory is still 457.2 MB. Free memory was 427.6 MB in the beginning and 397.1 MB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 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; VAL [cstats={82:0}] [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, 28 locations, 3 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 18 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=28occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 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 /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-23_11-53-10-913.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_11-53-10-913.csv Received shutdown request...