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/memset2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 21:22:53,730 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 21:22:53,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 21:22:53,747 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 21:22:53,747 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 21:22:53,748 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 21:22:53,749 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 21:22:53,751 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 21:22:53,753 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 21:22:53,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 21:22:53,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 21:22:53,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 21:22:53,756 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 21:22:53,758 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 21:22:53,759 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 21:22:53,761 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 21:22:53,763 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 21:22:53,765 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 21:22:53,766 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 21:22:53,767 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 21:22:53,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-29 21:22:53,770 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-29 21:22:53,770 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-29 21:22:53,771 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-29 21:22:53,772 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-29 21:22:53,774 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-29 21:22:53,774 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-29 21:22:53,775 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-29 21:22:53,775 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-29 21:22:53,776 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 21:22:53,776 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 21:22:53,777 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 [2018-03-29 21:22:53,800 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 21:22:53,801 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 21:22:53,801 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 21:22:53,801 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 21:22:53,802 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 21:22:53,802 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 21:22:53,802 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 21:22:53,803 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 21:22:53,803 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 21:22:53,803 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 21:22:53,803 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 21:22:53,804 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 21:22:53,804 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 21:22:53,804 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 21:22:53,804 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 21:22:53,804 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 21:22:53,805 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 21:22:53,805 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 21:22:53,805 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 21:22:53,805 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 21:22:53,805 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 21:22:53,806 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 21:22:53,806 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 21:22:53,806 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 21:22:53,806 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 21:22:53,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 21:22:53,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 21:22:53,807 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 21:22:53,807 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 21:22:53,807 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 21:22:53,807 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 21:22:53,807 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:22:53,808 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 21:22:53,808 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 21:22:53,809 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 21:22:53,809 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 21:22:53,809 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 21:22:53,842 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 21:22:53,855 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 21:22:53,859 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 21:22:53,861 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 21:22:53,861 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 21:22:53,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset2_false-valid-deref-write.c [2018-03-29 21:22:54,195 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG7bee0bc4a [2018-03-29 21:22:54,312 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 21:22:54,312 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 21:22:54,313 INFO L168 CDTParser]: Scanning memset2_false-valid-deref-write.c [2018-03-29 21:22:54,315 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 21:22:54,315 INFO L215 ultiparseSymbolTable]: [2018-03-29 21:22:54,315 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 21:22:54,315 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memset2_false-valid-deref-write.c [2018-03-29 21:22:54,316 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 21:22:54,316 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c__size_t in memset2_false-valid-deref-write.c [2018-03-29 21:22:54,316 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c____kernel_size_t in memset2_false-valid-deref-write.c [2018-03-29 21:22:54,316 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemset__false_valid_deref_write_c____u32 in memset2_false-valid-deref-write.c [2018-03-29 21:22:54,344 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG7bee0bc4a [2018-03-29 21:22:54,348 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 21:22:54,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 21:22:54,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 21:22:54,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 21:22:54,358 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 21:22:54,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71fdd449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54, skipping insertion in model container [2018-03-29 21:22:54,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,377 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 21:22:54,388 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 21:22:54,530 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 21:22:54,553 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 21:22:54,557 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-03-29 21:22:54,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54 WrapperNode [2018-03-29 21:22:54,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 21:22:54,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 21:22:54,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 21:22:54,566 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 21:22:54,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (1/1) ... [2018-03-29 21:22:54,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 21:22:54,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 21:22:54,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 21:22:54,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 21:22:54,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (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 [2018-03-29 21:22:54,654 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 21:22:54,655 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 21:22:54,655 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 21:22:54,655 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-03-29 21:22:54,655 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-03-29 21:22:54,655 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 21:22:54,655 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 21:22:54,655 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-03-29 21:22:54,655 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 21:22:54,656 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 21:22:54,656 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 21:22:54,827 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-03-29 21:22:54,878 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 21:22:54,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 09:22:54 BoogieIcfgContainer [2018-03-29 21:22:54,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 21:22:54,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 21:22:54,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 21:22:54,882 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 21:22:54,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 09:22:54" (1/3) ... [2018-03-29 21:22:54,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68283caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 09:22:54, skipping insertion in model container [2018-03-29 21:22:54,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:22:54" (2/3) ... [2018-03-29 21:22:54,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68283caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 09:22:54, skipping insertion in model container [2018-03-29 21:22:54,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 09:22:54" (3/3) ... [2018-03-29 21:22:54,886 INFO L107 eAbstractionObserver]: Analyzing ICFG memset2_false-valid-deref-write.c [2018-03-29 21:22:54,896 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 21:22:54,905 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-03-29 21:22:54,949 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 21:22:54,950 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 21:22:54,951 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 21:22:54,951 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 21:22:54,951 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 21:22:54,951 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 21:22:54,951 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 21:22:54,951 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 21:22:54,952 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 21:22:54,952 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 21:22:54,967 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-03-29 21:22:54,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-03-29 21:22:54,972 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:22:54,973 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:22:54,973 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 21:22:54,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1964876918, 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 [2018-03-29 21:22:54,991 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:22:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:22:55,023 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:22:55,061 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 [2018-03-29 21:22:55,063 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:22:55,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:22:55,068 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 21:22:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:22:55,081 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:22:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:22:55,113 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:22:55,113 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-29 21:22:55,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-29 21:22:55,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-29 21:22:55,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 21:22:55,128 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-03-29 21:22:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:22:55,178 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-03-29 21:22:55,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 21:22:55,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-03-29 21:22:55,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:22:55,189 INFO L225 Difference]: With dead ends: 26 [2018-03-29 21:22:55,190 INFO L226 Difference]: Without dead ends: 22 [2018-03-29 21:22:55,194 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 21:22:55,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-03-29 21:22:55,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-03-29 21:22:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-03-29 21:22:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-03-29 21:22:55,223 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 8 [2018-03-29 21:22:55,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:22:55,224 INFO L459 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-03-29 21:22:55,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-29 21:22:55,224 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-03-29 21:22:55,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-03-29 21:22:55,225 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:22:55,225 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:22:55,225 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 21:22:55,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1964876917, 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 [2018-03-29 21:22:55,235 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:22:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-29 21:22:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-29 21:22:55,289 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-03-29 21:22:55,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 09:22:55 BoogieIcfgContainer [2018-03-29 21:22:55,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 21:22:55,303 INFO L168 Benchmark]: Toolchain (without parser) took 954.09 ms. Allocated memory was 299.9 MB in the beginning and 460.8 MB in the end (delta: 161.0 MB). Free memory was 242.6 MB in the beginning and 400.7 MB in the end (delta: -158.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 5.3 GB. [2018-03-29 21:22:55,304 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 299.9 MB. Free memory is still 261.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 21:22:55,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.00 ms. Allocated memory is still 299.9 MB. Free memory was 242.6 MB in the beginning and 232.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:22:55,305 INFO L168 Benchmark]: Boogie Preprocessor took 29.69 ms. Allocated memory is still 299.9 MB. Free memory was 232.6 MB in the beginning and 231.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-03-29 21:22:55,306 INFO L168 Benchmark]: RCFGBuilder took 283.25 ms. Allocated memory was 299.9 MB in the beginning and 460.8 MB in the end (delta: 161.0 MB). Free memory was 231.6 MB in the beginning and 431.7 MB in the end (delta: -200.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 5.3 GB. [2018-03-29 21:22:55,307 INFO L168 Benchmark]: TraceAbstraction took 422.97 ms. Allocated memory is still 460.8 MB. Free memory was 431.7 MB in the beginning and 400.7 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:22:55,309 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 299.9 MB. Free memory is still 261.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 212.00 ms. Allocated memory is still 299.9 MB. Free memory was 242.6 MB in the beginning and 232.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.69 ms. Allocated memory is still 299.9 MB. Free memory was 232.6 MB in the beginning and 231.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 283.25 ms. Allocated memory was 299.9 MB in the beginning and 460.8 MB in the end (delta: 161.0 MB). Free memory was 231.6 MB in the beginning and 431.7 MB in the end (delta: -200.1 MB). Peak memory consumption was 23.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 422.97 ms. Allocated memory is still 460.8 MB. Free memory was 431.7 MB in the beginning and 400.7 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L21] FCALL struct compstat cstats ; VAL [cstats={6:0}] [L22] FCALL memset((void *)(& cstats), 0, 41UL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 3 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 3 SDslu, 13 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 2 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/memset2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-29_21-22-55-316.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-29_21-22-55-316.csv Received shutdown request...