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_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 17:43:36,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 17:43:36,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 17:43:36,143 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 17:43:36,144 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 17:43:36,145 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 17:43:36,146 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 17:43:36,149 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 17:43:36,151 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 17:43:36,152 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 17:43:36,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 17:43:36,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 17:43:36,157 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 17:43:36,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 17:43:36,159 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 17:43:36,164 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 17:43:36,174 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 17:43:36,176 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 17:43:36,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 17:43:36,182 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 17:43:36,188 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-05 17:43:36,202 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-05 17:43:36,202 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-05 17:43:36,203 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 17:43:36,242 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 17:43:36,242 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 17:43:36,242 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 17:43:36,242 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 17:43:36,248 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 17:43:36,248 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 17:43:36,248 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 17:43:36,248 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 17:43:36,249 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 17:43:36,249 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 17:43:36,249 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 17:43:36,249 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 17:43:36,250 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 17:43:36,250 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 17:43:36,250 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 17:43:36,250 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 17:43:36,250 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 17:43:36,250 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 17:43:36,250 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 17:43:36,251 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 17:43:36,251 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 17:43:36,252 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 17:43:36,252 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 17:43:36,252 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 17:43:36,252 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 17:43:36,252 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 17:43:36,252 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 17:43:36,253 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 17:43:36,253 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 17:43:36,253 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 17:43:36,253 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 17:43:36,253 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:43:36,253 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 17:43:36,254 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 17:43:36,254 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 17:43:36,255 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 17:43:36,256 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 17:43:36,308 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 17:43:36,323 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 17:43:36,330 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 17:43:36,331 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 17:43:36,332 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 17:43:36,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_false-valid-deref-write.c [2018-04-05 17:43:36,695 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG768541131 [2018-04-05 17:43:36,832 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 17:43:36,833 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 17:43:36,833 INFO L168 CDTParser]: Scanning memsetNonZero3_false-valid-deref-write.c [2018-04-05 17:43:36,834 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 17:43:36,834 INFO L215 ultiparseSymbolTable]: [2018-04-05 17:43:36,835 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 17:43:36,835 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memsetNonZero3_false-valid-deref-write.c [2018-04-05 17:43:36,835 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 17:43:36,835 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c____u32 in memsetNonZero3_false-valid-deref-write.c [2018-04-05 17:43:36,835 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c____kernel_size_t in memsetNonZero3_false-valid-deref-write.c [2018-04-05 17:43:36,835 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c__size_t in memsetNonZero3_false-valid-deref-write.c [2018-04-05 17:43:36,853 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG768541131 [2018-04-05 17:43:36,858 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 17:43:36,859 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 17:43:36,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 17:43:36,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 17:43:36,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 17:43:36,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 05:43:36" (1/1) ... [2018-04-05 17:43:36,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9dce46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:36, skipping insertion in model container [2018-04-05 17:43:36,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 05:43:36" (1/1) ... [2018-04-05 17:43:36,883 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 17:43:36,895 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 17:43:37,055 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 17:43:37,083 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 17:43:37,089 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-04-05 17:43:37,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37 WrapperNode [2018-04-05 17:43:37,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 17:43:37,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 17:43:37,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 17:43:37,098 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 17:43:37,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (1/1) ... [2018-04-05 17:43:37,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (1/1) ... [2018-04-05 17:43:37,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (1/1) ... [2018-04-05 17:43:37,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (1/1) ... [2018-04-05 17:43:37,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (1/1) ... [2018-04-05 17:43:37,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (1/1) ... [2018-04-05 17:43:37,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (1/1) ... [2018-04-05 17:43:37,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 17:43:37,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 17:43:37,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 17:43:37,125 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 17:43:37,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (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 [2018-04-05 17:43:37,183 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 17:43:37,183 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 17:43:37,183 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 17:43:37,183 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-04-05 17:43:37,183 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-04-05 17:43:37,183 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 17:43:37,183 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 17:43:37,184 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-04-05 17:43:37,184 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 17:43:37,184 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 17:43:37,184 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 17:43:37,374 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-05 17:43:37,442 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 17:43:37,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 05:43:37 BoogieIcfgContainer [2018-04-05 17:43:37,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 17:43:37,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 17:43:37,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 17:43:37,447 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 17:43:37,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 05:43:36" (1/3) ... [2018-04-05 17:43:37,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41be6001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 05:43:37, skipping insertion in model container [2018-04-05 17:43:37,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 05:43:37" (2/3) ... [2018-04-05 17:43:37,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41be6001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 05:43:37, skipping insertion in model container [2018-04-05 17:43:37,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 05:43:37" (3/3) ... [2018-04-05 17:43:37,451 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero3_false-valid-deref-write.c [2018-04-05 17:43:37,461 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 17:43:37,468 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-04-05 17:43:37,519 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 17:43:37,520 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 17:43:37,520 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 17:43:37,520 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 17:43:37,520 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 17:43:37,520 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 17:43:37,520 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 17:43:37,521 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 17:43:37,521 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 17:43:37,521 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 17:43:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-04-05 17:43:37,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-05 17:43:37,541 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:43:37,541 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:43:37,542 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 17:43:37,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970025, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:43:37,557 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:43:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 17:43:37,597 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 17:43:37,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 17:43:37,644 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 17:43:37,658 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 17:43:37,659 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 17:43:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:43:37,675 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 17:43:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 17:43:37,714 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 17:43:37,714 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 17:43:37,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 17:43:37,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 17:43:37,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 17:43:37,728 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-04-05 17:43:37,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 17:43:37,801 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-04-05 17:43:37,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 17:43:37,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-05 17:43:37,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 17:43:37,815 INFO L225 Difference]: With dead ends: 28 [2018-04-05 17:43:37,815 INFO L226 Difference]: Without dead ends: 24 [2018-04-05 17:43:37,818 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 17:43:37,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-05 17:43:37,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-05 17:43:37,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-05 17:43:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-04-05 17:43:37,847 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 10 [2018-04-05 17:43:37,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 17:43:37,847 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-04-05 17:43:37,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 17:43:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-04-05 17:43:37,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-05 17:43:37,848 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 17:43:37,849 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 17:43:37,849 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 17:43:37,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970026, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 17:43:37,856 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 17:43:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-05 17:43:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-05 17:43:37,912 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-05 17:43:37,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 05:43:37 BoogieIcfgContainer [2018-04-05 17:43:37,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-05 17:43:37,927 INFO L168 Benchmark]: Toolchain (without parser) took 1069.23 ms. Allocated memory was 299.9 MB in the beginning and 463.5 MB in the end (delta: 163.6 MB). Free memory was 242.6 MB in the beginning and 398.0 MB in the end (delta: -155.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. [2018-04-05 17:43:37,928 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 299.9 MB. Free memory is still 262.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-05 17:43:37,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.26 ms. Allocated memory is still 299.9 MB. Free memory was 241.6 MB in the beginning and 232.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. [2018-04-05 17:43:37,929 INFO L168 Benchmark]: Boogie Preprocessor took 26.90 ms. Allocated memory is still 299.9 MB. Free memory was 232.5 MB in the beginning and 230.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-05 17:43:37,930 INFO L168 Benchmark]: RCFGBuilder took 317.78 ms. Allocated memory was 299.9 MB in the beginning and 463.5 MB in the end (delta: 163.6 MB). Free memory was 230.5 MB in the beginning and 433.1 MB in the end (delta: -202.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 5.3 GB. [2018-04-05 17:43:37,931 INFO L168 Benchmark]: TraceAbstraction took 483.30 ms. Allocated memory is still 463.5 MB. Free memory was 433.1 MB in the beginning and 398.0 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 5.3 GB. [2018-04-05 17:43:37,934 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 299.9 MB. Free memory is still 262.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 237.26 ms. Allocated memory is still 299.9 MB. Free memory was 241.6 MB in the beginning and 232.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.90 ms. Allocated memory is still 299.9 MB. Free memory was 232.5 MB in the beginning and 230.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 317.78 ms. Allocated memory was 299.9 MB in the beginning and 463.5 MB in the end (delta: 163.6 MB). Free memory was 230.5 MB in the beginning and 433.1 MB in the end (delta: -202.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 483.30 ms. Allocated memory is still 463.5 MB. Free memory was 433.1 MB in the beginning and 398.0 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 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={6:0}] [L27] void *point; VAL [cstats={6:0}] [L28] point = (void *)(& cstats) VAL [cstats={6:0}, point={6:0}] [L29] FCALL memset(point, 10, 81UL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 3 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s 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, 20 GetRequests, 17 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, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 1 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-05_17-43-37-942.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_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-05_17-43-37-942.csv Received shutdown request...