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/memsetNonZero3_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 11:53:12,670 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 11:53:12,672 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 11:53:12,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 11:53:12,687 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 11:53:12,687 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 11:53:12,688 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 11:53:12,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 11:53:12,691 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 11:53:12,691 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 11:53:12,692 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 11:53:12,692 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 11:53:12,693 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 11:53:12,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 11:53:12,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 11:53:12,697 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 11:53:12,699 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 11:53:12,701 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 11:53:12,703 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 11:53:12,704 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 11:53:12,706 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 11:53:12,707 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 11:53:12,707 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 11:53:12,708 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 11:53:12,709 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 11:53:12,710 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 11:53:12,711 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 11:53:12,711 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 11:53:12,712 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 11:53:12,712 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 11:53:12,713 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 11:53:12,713 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 11:53:12,723 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 11:53:12,723 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 11:53:12,724 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 11:53:12,724 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 11:53:12,725 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 11:53:12,725 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 11:53:12,725 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 11:53:12,726 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 11:53:12,726 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 11:53:12,726 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 11:53:12,726 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 11:53:12,727 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 11:53:12,727 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 11:53:12,727 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 11:53:12,727 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 11:53:12,727 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 11:53:12,728 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 11:53:12,728 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 11:53:12,728 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 11:53:12,728 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 11:53:12,728 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 11:53:12,729 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 11:53:12,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 11:53:12,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 11:53:12,729 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 11:53:12,729 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 11:53:12,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 11:53:12,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 11:53:12,730 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 11:53:12,730 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 11:53:12,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 11:53:12,731 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 11:53:12,732 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 11:53:12,732 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 11:53:12,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 11:53:12,780 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 11:53:12,784 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 11:53:12,786 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 11:53:12,786 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 11:53:12,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_false-valid-deref-write.c [2018-03-23 11:53:13,156 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0871ac531 [2018-03-23 11:53:13,273 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 11:53:13,273 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 11:53:13,274 INFO L171 CDTParser]: Scanning memsetNonZero3_false-valid-deref-write.c [2018-03-23 11:53:13,275 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 11:53:13,275 INFO L215 ultiparseSymbolTable]: [2018-03-23 11:53:13,275 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 11:53:13,275 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memsetNonZero3_false-valid-deref-write.c [2018-03-23 11:53:13,275 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 11:53:13,275 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c____u32 in memsetNonZero3_false-valid-deref-write.c [2018-03-23 11:53:13,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c____kernel_size_t in memsetNonZero3_false-valid-deref-write.c [2018-03-23 11:53:13,276 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c__size_t in memsetNonZero3_false-valid-deref-write.c [2018-03-23 11:53:13,292 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0871ac531 [2018-03-23 11:53:13,297 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 11:53:13,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-23 11:53:13,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 11:53:13,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 11:53:13,308 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 11:53:13,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8b165c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13, skipping insertion in model container [2018-03-23 11:53:13,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,328 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:53:13,339 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:53:13,478 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:53:13,507 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:53:13,511 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-03-23 11:53:13,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13 WrapperNode [2018-03-23 11:53:13,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 11:53:13,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 11:53:13,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 11:53:13,520 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 11:53:13,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 11:53:13,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 11:53:13,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 11:53:13,551 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 11:53:13,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (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 11:53:13,606 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 11:53:13,607 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 11:53:13,607 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 11:53:13,607 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-03-23 11:53:13,607 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-03-23 11:53:13,607 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 11:53:13,608 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-23 11:53:13,608 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-03-23 11:53:13,608 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 11:53:13,608 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 11:53:13,608 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 11:53:13,771 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-03-23 11:53:13,829 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 11:53:13,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:53:13 BoogieIcfgContainer [2018-03-23 11:53:13,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 11:53:13,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 11:53:13,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 11:53:13,833 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 11:53:13,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 11:53:13" (1/3) ... [2018-03-23 11:53:13,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a31422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:53:13, skipping insertion in model container [2018-03-23 11:53:13,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13" (2/3) ... [2018-03-23 11:53:13,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a31422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:53:13, skipping insertion in model container [2018-03-23 11:53:13,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:53:13" (3/3) ... [2018-03-23 11:53:13,837 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero3_false-valid-deref-write.c [2018-03-23 11:53:13,844 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 11:53:13,850 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-03-23 11:53:13,886 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 11:53:13,886 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 11:53:13,886 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 11:53:13,886 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 11:53:13,887 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 11:53:13,887 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 11:53:13,887 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 11:53:13,887 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 11:53:13,887 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 11:53:13,887 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 11:53:13,901 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-03-23 11:53:13,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-03-23 11:53:13,908 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:53:13,909 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:53:13,910 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:53:13,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970025, now seen corresponding path program 1 times [2018-03-23 11:53:13,917 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:53:13,917 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:53:13,965 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:13,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:53:13,965 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:53:14,004 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:53:14,070 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 11:53:14,072 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:53:14,073 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:53:14,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:53:14,087 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:53:14,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:53:14,090 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-03-23 11:53:14,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:53:14,160 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-03-23 11:53:14,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-23 11:53:14,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-03-23 11:53:14,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:53:14,173 INFO L225 Difference]: With dead ends: 28 [2018-03-23 11:53:14,173 INFO L226 Difference]: Without dead ends: 24 [2018-03-23 11:53:14,176 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 11:53:14,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-03-23 11:53:14,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-03-23 11:53:14,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-03-23 11:53:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-03-23 11:53:14,204 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 10 [2018-03-23 11:53:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:53:14,204 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-03-23 11:53:14,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:53:14,205 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-03-23 11:53:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-03-23 11:53:14,205 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:53:14,205 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:53:14,205 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:53:14,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970026, now seen corresponding path program 1 times [2018-03-23 11:53:14,206 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:53:14,206 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:53:14,207 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:14,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:53:14,208 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:53:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:53:14,253 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-03-23 11:53:14,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 11:53:14 BoogieIcfgContainer [2018-03-23 11:53:14,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 11:53:14,269 INFO L168 Benchmark]: Toolchain (without parser) took 971.66 ms. Allocated memory was 300.4 MB in the beginning and 458.8 MB in the end (delta: 158.3 MB). Free memory was 246.1 MB in the beginning and 402.2 MB in the end (delta: -156.1 MB). Peak memory consumption was 2.2 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,270 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 300.4 MB. Free memory is still 264.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 11:53:14,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.84 ms. Allocated memory is still 300.4 MB. Free memory was 246.1 MB in the beginning and 236.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,271 INFO L168 Benchmark]: Boogie Preprocessor took 30.72 ms. Allocated memory is still 300.4 MB. Free memory was 236.1 MB in the beginning and 235.2 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,271 INFO L168 Benchmark]: RCFGBuilder took 278.51 ms. Allocated memory was 300.4 MB in the beginning and 458.8 MB in the end (delta: 158.3 MB). Free memory was 235.2 MB in the beginning and 429.5 MB in the end (delta: -194.3 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,272 INFO L168 Benchmark]: TraceAbstraction took 438.07 ms. Allocated memory is still 458.8 MB. Free memory was 429.5 MB in the beginning and 402.2 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,275 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 300.4 MB. Free memory is still 264.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.84 ms. Allocated memory is still 300.4 MB. Free memory was 246.1 MB in the beginning and 236.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.72 ms. Allocated memory is still 300.4 MB. Free memory was 236.1 MB in the beginning and 235.2 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. * RCFGBuilder took 278.51 ms. Allocated memory was 300.4 MB in the beginning and 458.8 MB in the end (delta: 158.3 MB). Free memory was 235.2 MB in the beginning and 429.5 MB in the end (delta: -194.3 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 438.07 ms. Allocated memory is still 458.8 MB. Free memory was 429.5 MB in the beginning and 402.2 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 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, 10, 81UL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 3 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s 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/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-23_11-53-14-284.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_11-53-14-284.csv Received shutdown request...