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/memsetNonZero_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 11:53:12,790 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 11:53:12,791 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 11:53:12,808 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 11:53:12,809 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 11:53:12,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 11:53:12,811 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 11:53:12,813 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 11:53:12,815 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 11:53:12,816 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 11:53:12,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 11:53:12,818 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 11:53:12,819 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 11:53:12,820 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 11:53:12,821 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 11:53:12,824 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 11:53:12,826 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 11:53:12,828 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 11:53:12,830 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 11:53:12,831 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 11:53:12,833 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 11:53:12,834 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 11:53:12,834 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 11:53:12,835 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 11:53:12,836 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 11:53:12,838 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 11:53:12,838 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 11:53:12,839 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 11:53:12,839 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 11:53:12,840 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 11:53:12,841 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 11:53:12,841 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 11:53:12,849 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 11:53:12,850 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 11:53:12,851 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 11:53:12,851 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 11:53:12,851 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 11:53:12,851 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 11:53:12,851 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 11:53:12,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 11:53:12,852 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 11:53:12,852 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 11:53:12,852 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 11:53:12,852 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 11:53:12,852 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 11:53:12,853 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 11:53:12,853 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 11:53:12,853 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 11:53:12,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 11:53:12,853 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 11:53:12,853 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 11:53:12,853 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 11:53:12,853 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 11:53:12,854 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 11:53:12,854 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 11:53:12,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 11:53:12,854 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 11:53:12,854 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 11:53:12,855 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 11:53:12,855 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 11:53:12,855 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 11:53:12,855 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 11:53:12,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 11:53:12,856 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 11:53:12,856 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 11:53:12,857 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 11:53:12,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 11:53:12,900 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 11:53:12,903 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 11:53:12,905 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 11:53:12,905 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 11:53:12,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero_false-valid-deref-write.c [2018-03-23 11:53:13,193 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGae2ff4385 [2018-03-23 11:53:13,338 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 11:53:13,339 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 11:53:13,339 INFO L171 CDTParser]: Scanning memsetNonZero_false-valid-deref-write.c [2018-03-23 11:53:13,340 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 11:53:13,341 INFO L215 ultiparseSymbolTable]: [2018-03-23 11:53:13,341 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 11:53:13,341 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memsetNonZero_false-valid-deref-write.c [2018-03-23 11:53:13,341 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 11:53:13,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero_false_valid_deref_write_c____kernel_size_t in memsetNonZero_false-valid-deref-write.c [2018-03-23 11:53:13,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero_false_valid_deref_write_c__size_t in memsetNonZero_false-valid-deref-write.c [2018-03-23 11:53:13,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero_false_valid_deref_write_c____u32 in memsetNonZero_false-valid-deref-write.c [2018-03-23 11:53:13,355 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGae2ff4385 [2018-03-23 11:53:13,360 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 11:53:13,362 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-23 11:53:13,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 11:53:13,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 11:53:13,368 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 11:53:13,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1175c75b 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 11:53:13,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:53:13" (1/1) ... [2018-03-23 11:53:13,385 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:53:13,397 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:53:13,518 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:53:13,540 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:53:13,544 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-03-23 11:53:13,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:53:13 WrapperNode [2018-03-23 11:53:13,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 11:53:13,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 11:53:13,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 11:53:13,551 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 11:53:13,561 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 11:53:13,561 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 11:53:13,567 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 11:53:13,568 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 11:53:13,570 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 11:53:13,574 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 11:53:13,575 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 11:53:13,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 11:53:13,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 11:53:13,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 11:53:13,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 11:53:13,578 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 11:53:13,629 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 11:53:13,630 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 11:53:13,630 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 11:53:13,630 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-03-23 11:53:13,630 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-03-23 11:53:13,630 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 11:53:13,630 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-23 11:53:13,630 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-03-23 11:53:13,630 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 11:53:13,630 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 11:53:13,631 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 11:53:13,787 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-03-23 11:53:13,846 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 11:53:13,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:53:13 BoogieIcfgContainer [2018-03-23 11:53:13,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 11:53:13,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 11:53:13,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 11:53:13,851 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 11:53:13,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 11:53:13" (1/3) ... [2018-03-23 11:53:13,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@803f4fd 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 11:53:13,853 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 11:53:13,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@803f4fd 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 11:53:13,853 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 11:53:13,855 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero_false-valid-deref-write.c [2018-03-23 11:53:13,863 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 11:53:13,868 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-03-23 11:53:13,908 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 11:53:13,909 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 11:53:13,909 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 11:53:13,909 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 11:53:13,909 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 11:53:13,909 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 11:53:13,910 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 11:53:13,910 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 11:53:13,910 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 11:53:13,911 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 11:53:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-03-23 11:53:13,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-03-23 11:53:13,934 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:53:13,935 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:53:13,935 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:53:13,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1964876918, now seen corresponding path program 1 times [2018-03-23 11:53:13,943 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:53:13,943 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:53:13,980 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:13,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:53:13,981 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:53:14,029 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:53:14,074 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 11:53:14,076 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:53:14,077 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-03-23 11:53:14,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-23 11:53:14,088 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-23 11:53:14,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:53:14,090 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-03-23 11:53:14,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:53:14,138 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-03-23 11:53:14,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-23 11:53:14,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-03-23 11:53:14,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:53:14,151 INFO L225 Difference]: With dead ends: 26 [2018-03-23 11:53:14,151 INFO L226 Difference]: Without dead ends: 22 [2018-03-23 11:53:14,154 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:53:14,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-03-23 11:53:14,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-03-23 11:53:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-03-23 11:53:14,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-03-23 11:53:14,181 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 8 [2018-03-23 11:53:14,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:53:14,182 INFO L459 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-03-23 11:53:14,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-23 11:53:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-03-23 11:53:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-03-23 11:53:14,182 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:53:14,182 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:53:14,182 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:53:14,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1964876917, now seen corresponding path program 1 times [2018-03-23 11:53:14,183 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:53:14,183 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:53:14,184 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:14,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:53:14,184 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:53:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:53:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:53:14,237 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-03-23 11:53:14,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 11:53:14 BoogieIcfgContainer [2018-03-23 11:53:14,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 11:53:14,255 INFO L168 Benchmark]: Toolchain (without parser) took 895.07 ms. Allocated memory was 303.6 MB in the beginning and 462.9 MB in the end (delta: 159.4 MB). Free memory was 248.2 MB in the beginning and 407.0 MB in the end (delta: -158.8 MB). Peak memory consumption was 583.7 kB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,256 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 303.6 MB. Free memory is still 267.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 11:53:14,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.32 ms. Allocated memory is still 303.6 MB. Free memory was 248.2 MB in the beginning and 238.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,257 INFO L168 Benchmark]: Boogie Preprocessor took 25.61 ms. Allocated memory is still 303.6 MB. Free memory was 238.2 MB in the beginning and 237.2 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,257 INFO L168 Benchmark]: RCFGBuilder took 269.72 ms. Allocated memory was 303.6 MB in the beginning and 462.9 MB in the end (delta: 159.4 MB). Free memory was 237.2 MB in the beginning and 433.8 MB in the end (delta: -196.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,258 INFO L168 Benchmark]: TraceAbstraction took 406.72 ms. Allocated memory is still 462.9 MB. Free memory was 433.8 MB in the beginning and 407.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 5.3 GB. [2018-03-23 11:53:14,261 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 303.6 MB. Free memory is still 267.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 187.32 ms. Allocated memory is still 303.6 MB. Free memory was 248.2 MB in the beginning and 238.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.61 ms. Allocated memory is still 303.6 MB. Free memory was 238.2 MB in the beginning and 237.2 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 269.72 ms. Allocated memory was 303.6 MB in the beginning and 462.9 MB in the end (delta: 159.4 MB). Free memory was 237.2 MB in the beginning and 433.8 MB in the end (delta: -196.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 406.72 ms. Allocated memory is still 462.9 MB. Free memory was 433.8 MB in the beginning and 407.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 27]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L26] FCALL struct ppp_comp_stats cstats ; VAL [cstats={83:0}] [L27] FCALL memset((void *)(& cstats), 10, 81UL) - 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, 2 GetRequests, 1 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, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 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/memsetNonZero_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-23_11-53-14-270.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_11-53-14-270.csv Received shutdown request...