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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 12:19:25,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 12:19:25,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 12:19:25,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 12:19:25,967 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 12:19:25,968 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 12:19:25,970 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 12:19:25,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 12:19:25,973 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 12:19:25,974 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 12:19:25,975 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 12:19:25,975 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 12:19:25,976 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 12:19:25,978 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 12:19:25,978 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 12:19:25,981 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 12:19:25,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 12:19:25,985 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 12:19:25,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 12:19:25,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 12:19:25,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 12:19:25,990 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 12:19:25,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 12:19:25,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 12:19:25,992 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 12:19:25,993 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 12:19:25,993 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 12:19:25,994 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 12:19:25,995 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 12:19:25,995 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 12:19:25,996 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 12:19:25,996 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 12:19:26,006 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 12:19:26,007 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 12:19:26,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 12:19:26,008 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 12:19:26,008 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 12:19:26,008 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 12:19:26,008 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 12:19:26,009 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 12:19:26,009 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 12:19:26,009 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 12:19:26,010 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 12:19:26,010 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 12:19:26,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 12:19:26,010 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 12:19:26,010 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 12:19:26,010 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 12:19:26,011 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 12:19:26,011 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 12:19:26,011 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 12:19:26,011 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 12:19:26,011 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 12:19:26,012 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 12:19:26,012 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 12:19:26,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 12:19:26,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 12:19:26,013 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 12:19:26,013 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 12:19:26,013 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 12:19:26,013 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 12:19:26,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 12:19:26,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 12:19:26,014 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 12:19:26,015 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 12:19:26,015 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 12:19:26,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 12:19:26,061 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 12:19:26,066 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 12:19:26,067 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 12:19:26,068 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 12:19:26,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero2_false-valid-deref-write.c [2018-03-23 12:19:26,401 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGe16ee35ff [2018-03-23 12:19:26,509 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 12:19:26,509 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 12:19:26,510 INFO L171 CDTParser]: Scanning memsetNonZero2_false-valid-deref-write.c [2018-03-23 12:19:26,511 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 12:19:26,511 INFO L215 ultiparseSymbolTable]: [2018-03-23 12:19:26,511 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 12:19:26,511 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in memsetNonZero2_false-valid-deref-write.c [2018-03-23 12:19:26,511 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 12:19:26,511 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c__size_t in memsetNonZero2_false-valid-deref-write.c [2018-03-23 12:19:26,511 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c____u32 in memsetNonZero2_false-valid-deref-write.c [2018-03-23 12:19:26,512 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fmemsetNonZero__false_valid_deref_write_c____kernel_size_t in memsetNonZero2_false-valid-deref-write.c [2018-03-23 12:19:26,527 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGe16ee35ff [2018-03-23 12:19:26,531 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 12:19:26,535 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-03-23 12:19:26,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 12:19:26,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 12:19:26,543 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 12:19:26,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fcd356f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26, skipping insertion in model container [2018-03-23 12:19:26,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,564 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 12:19:26,576 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 12:19:26,725 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 12:19:26,749 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 12:19:26,754 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 7 non ball SCCs. Number of states in SCCs 7. [2018-03-23 12:19:26,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26 WrapperNode [2018-03-23 12:19:26,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 12:19:26,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 12:19:26,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 12:19:26,762 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 12:19:26,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (1/1) ... [2018-03-23 12:19:26,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 12:19:26,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 12:19:26,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 12:19:26,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 12:19:26,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (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 12:19:26,850 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 12:19:26,851 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 12:19:26,851 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 12:19:26,851 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-03-23 12:19:26,851 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-03-23 12:19:26,851 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 12:19:26,851 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-23 12:19:26,852 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-03-23 12:19:26,852 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 12:19:26,852 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 12:19:26,852 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 12:19:27,007 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-03-23 12:19:27,071 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 12:19:27,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 12:19:27 BoogieIcfgContainer [2018-03-23 12:19:27,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 12:19:27,072 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-03-23 12:19:27,072 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-03-23 12:19:27,073 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-03-23 12:19:27,078 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 12:19:27" (1/1) ... [2018-03-23 12:19:27,088 INFO L112 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-03-23 12:19:27,089 INFO L113 apSepIcfgTransformer]: To be partitioned heap arrays found [] [2018-03-23 12:19:27,101 INFO L255 apSepIcfgTransformer]: Heap separator: starting memloc-array-style preprocessing [2018-03-23 12:19:27,111 INFO L271 apSepIcfgTransformer]: finished MemlocArrayUpdater, created 0 location literals (each corresponds to one heap write) [2018-03-23 12:19:27,118 INFO L322 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-03-23 12:19:27,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-03-23 12:19:27,532 INFO L314 AbstractInterpreter]: Visited 29 different actions 41 times. Merged at 10 different actions 10 times. Never widened. Found 5 fixpoints after 4 different actions. Largest state had 15 variables. [2018-03-23 12:19:27,535 INFO L334 apSepIcfgTransformer]: finished equality analysis [2018-03-23 12:19:27,542 INFO L344 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-03-23 12:19:27,543 INFO L345 apSepIcfgTransformer]: array groups: Set: [2018-03-23 12:19:27,543 INFO L347 apSepIcfgTransformer]: select infos: Set: [2018-03-23 12:19:27,545 INFO L311 HeapPartitionManager]: partitioning result: [2018-03-23 12:19:27,546 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-03-23 12:19:27,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.03 12:19:27 BasicIcfg [2018-03-23 12:19:27,554 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-03-23 12:19:27,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 12:19:27,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 12:19:27,559 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 12:19:27,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 12:19:26" (1/4) ... [2018-03-23 12:19:27,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a33c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 12:19:27, skipping insertion in model container [2018-03-23 12:19:27,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:26" (2/4) ... [2018-03-23 12:19:27,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a33c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 12:19:27, skipping insertion in model container [2018-03-23 12:19:27,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 12:19:27" (3/4) ... [2018-03-23 12:19:27,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a33c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 12:19:27, skipping insertion in model container [2018-03-23 12:19:27,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.03 12:19:27" (4/4) ... [2018-03-23 12:19:27,563 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-03-23 12:19:27,570 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 12:19:27,576 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-03-23 12:19:27,605 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 12:19:27,605 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 12:19:27,605 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 12:19:27,605 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 12:19:27,605 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 12:19:27,606 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 12:19:27,606 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 12:19:27,606 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 12:19:27,606 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 12:19:27,606 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 12:19:27,616 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-03-23 12:19:27,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-03-23 12:19:27,620 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:27,620 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-03-23 12:19:27,621 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 12:19:27,624 INFO L82 PathProgramCache]: Analyzing trace with hash 4531405, now seen corresponding path program 1 times [2018-03-23 12:19:27,625 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:27,626 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:27,676 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:27,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:27,677 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:27,719 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:27,770 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 12:19:27,772 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 12:19:27,772 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-03-23 12:19:27,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-23 12:19:27,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-23 12:19:27,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 12:19:27,784 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-03-23 12:19:27,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:27,834 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-03-23 12:19:27,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-23 12:19:27,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-03-23 12:19:27,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:27,848 INFO L225 Difference]: With dead ends: 26 [2018-03-23 12:19:27,849 INFO L226 Difference]: Without dead ends: 22 [2018-03-23 12:19:27,852 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 12:19:27,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-03-23 12:19:27,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-03-23 12:19:27,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-03-23 12:19:27,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-03-23 12:19:27,885 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 4 [2018-03-23 12:19:27,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:27,885 INFO L459 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-03-23 12:19:27,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-23 12:19:27,886 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-03-23 12:19:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-03-23 12:19:27,886 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:27,886 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-03-23 12:19:27,886 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 12:19:27,887 INFO L82 PathProgramCache]: Analyzing trace with hash 4531407, now seen corresponding path program 1 times [2018-03-23 12:19:27,887 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:27,887 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:27,888 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:27,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:27,888 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 12:19:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 12:19:27,917 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-03-23 12:19:27,920 INFO L84 mationBacktranslator]: Skipped ATE [117] [117] ULTIMATE.startENTRY-->L-1: Formula: true InVars {} OutVars{#NULL.offset=|v_#NULL.offset_2|, #NULL.base=|v_#NULL.base_2|, #valid=|v_#valid_4|} AuxVars[] AssignedVars[#valid, #NULL.offset, #NULL.base] [2018-03-23 12:19:27,920 INFO L84 mationBacktranslator]: Skipped ATE [123] [123] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-23 12:19:27,920 INFO L84 mationBacktranslator]: Skipped ATE [129] [129] mainENTRY-->L21: Formula: (and (not (= |v_main_~#cstats~0.base_1| 0)) (= |v_#valid_8| (store |v_#valid_9| |v_main_~#cstats~0.base_1| 1)) (= 0 (select |v_#valid_9| |v_main_~#cstats~0.base_1|)) (= (store |v_#length_5| |v_main_~#cstats~0.base_1| 40) |v_#length_4|) (= |v_main_~#cstats~0.offset_1| 0)) InVars {#length=|v_#length_5|, #valid=|v_#valid_9|} OutVars{main_~#cstats~0.base=|v_main_~#cstats~0.base_1|, #length=|v_#length_4|, main_~#cstats~0.offset=|v_main_~#cstats~0.offset_1|, #valid=|v_#valid_8|} AuxVars[] AssignedVars[#valid, main_~#cstats~0.base, #length, main_~#cstats~0.offset] [2018-03-23 12:19:27,920 INFO L84 mationBacktranslator]: Skipped ATE [137] [137] L21-->mainErr1RequiresViolation: Formula: (or (not (<= 0 |v_main_~#cstats~0.offset_3|)) (not (<= (+ |v_main_~#cstats~0.offset_3| 41) (select |v_#length_7| |v_main_~#cstats~0.base_4|)))) InVars {main_~#cstats~0.base=|v_main_~#cstats~0.base_4|, #length=|v_#length_7|, main_~#cstats~0.offset=|v_main_~#cstats~0.offset_3|} OutVars{main_~#cstats~0.base=|v_main_~#cstats~0.base_4|, #length=|v_#length_7|, main_~#cstats~0.offset=|v_main_~#cstats~0.offset_3|} AuxVars[] AssignedVars[] [2018-03-23 12:19:27,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 12:19:27 BasicIcfg [2018-03-23 12:19:27,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 12:19:27,927 INFO L168 Benchmark]: Toolchain (without parser) took 1395.55 ms. Allocated memory was 302.5 MB in the beginning and 459.8 MB in the end (delta: 157.3 MB). Free memory was 247.2 MB in the beginning and 348.3 MB in the end (delta: -101.1 MB). Peak memory consumption was 56.2 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:27,928 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 302.5 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 12:19:27,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.99 ms. Allocated memory is still 302.5 MB. Free memory was 247.2 MB in the beginning and 238.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:27,929 INFO L168 Benchmark]: Boogie Preprocessor took 26.42 ms. Allocated memory is still 302.5 MB. Free memory was 238.0 MB in the beginning and 236.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:27,930 INFO L168 Benchmark]: RCFGBuilder took 282.84 ms. Allocated memory was 302.5 MB in the beginning and 459.8 MB in the end (delta: 157.3 MB). Free memory was 236.0 MB in the beginning and 430.8 MB in the end (delta: -194.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:27,931 INFO L168 Benchmark]: IcfgTransformer took 482.53 ms. Allocated memory is still 459.8 MB. Free memory was 430.8 MB in the beginning and 373.7 MB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:27,931 INFO L168 Benchmark]: TraceAbstraction took 371.25 ms. Allocated memory is still 459.8 MB. Free memory was 372.4 MB in the beginning and 348.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:27,935 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 302.5 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 225.99 ms. Allocated memory is still 302.5 MB. Free memory was 247.2 MB in the beginning and 238.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.42 ms. Allocated memory is still 302.5 MB. Free memory was 238.0 MB in the beginning and 236.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 282.84 ms. Allocated memory was 302.5 MB in the beginning and 459.8 MB in the end (delta: 157.3 MB). Free memory was 236.0 MB in the beginning and 430.8 MB in the end (delta: -194.8 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * IcfgTransformer took 482.53 ms. Allocated memory is still 459.8 MB. Free memory was 430.8 MB in the beginning and 373.7 MB in the end (delta: 57.1 MB). Peak memory consumption was 57.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 371.25 ms. Allocated memory is still 459.8 MB. Free memory was 372.4 MB in the beginning and 348.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 24 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 83 LocStat_NO_SUPPORTING_DISEQUALITIES : 34 LocStat_NO_DISJUNCTIONS : -48 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 38 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 43 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 39 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.301202 RENAME_VARIABLES(MILLISECONDS) : 0.043365 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.109744 PROJECTAWAY(MILLISECONDS) : 0.489158 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.161591 DISJOIN(MILLISECONDS) : 3.644655 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.072421 ADD_EQUALITY(MILLISECONDS) : 0.091084 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.014472 #CONJOIN_DISJUNCTIVE : 53 #RENAME_VARIABLES : 104 #UNFREEZE : 0 #CONJOIN : 92 #PROJECTAWAY : 101 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 1 #RENAME_VARIABLES_DISJUNCTIVE : 103 #ADD_EQUALITY : 43 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics * 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: - 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: 25 SDtfs, 4 SDslu, 13 SDs, 0 SdLazy, 12 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 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/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-03-23_12-19-27-950.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-03-23_12-19-27-950.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-03-23_12-19-27-950.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-03-23_12-19-27-950.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_12-19-27-950.csv Received shutdown request...