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/array-memsafety/diff_usafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 11:41:57,089 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 11:41:57,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 11:41:57,108 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 11:41:57,108 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 11:41:57,109 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 11:41:57,110 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 11:41:57,112 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 11:41:57,114 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 11:41:57,115 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 11:41:57,116 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 11:41:57,116 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 11:41:57,117 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 11:41:57,119 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 11:41:57,120 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 11:41:57,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 11:41:57,124 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 11:41:57,126 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 11:41:57,128 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 11:41:57,129 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 11:41:57,132 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 11:41:57,132 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 11:41:57,132 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 11:41:57,133 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 11:41:57,134 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 11:41:57,135 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 11:41:57,136 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 11:41:57,136 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 11:41:57,137 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 11:41:57,137 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 11:41:57,138 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 11:41:57,138 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 11:41:57,148 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 11:41:57,148 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 11:41:57,149 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 11:41:57,149 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 11:41:57,149 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 11:41:57,149 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 11:41:57,150 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 11:41:57,150 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 11:41:57,150 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 11:41:57,151 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 11:41:57,151 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 11:41:57,151 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 11:41:57,151 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 11:41:57,151 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 11:41:57,151 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 11:41:57,152 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 11:41:57,152 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 11:41:57,152 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 11:41:57,152 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 11:41:57,152 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 11:41:57,153 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 11:41:57,153 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 11:41:57,153 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 11:41:57,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 11:41:57,153 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 11:41:57,153 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 11:41:57,154 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 11:41:57,154 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 11:41:57,154 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 11:41:57,154 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 11:41:57,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 11:41:57,155 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 11:41:57,155 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 11:41:57,156 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 11:41:57,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 11:41:57,202 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 11:41:57,206 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 11:41:57,207 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 11:41:57,208 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 11:41:57,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/diff_usafe_false-valid-deref.i [2018-03-23 11:41:57,546 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf043644f8 [2018-03-23 11:41:57,647 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 11:41:57,647 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 11:41:57,647 INFO L171 CDTParser]: Scanning diff_usafe_false-valid-deref.i [2018-03-23 11:41:57,648 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 11:41:57,648 INFO L215 ultiparseSymbolTable]: [2018-03-23 11:41:57,648 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 11:41:57,649 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in diff_usafe_false-valid-deref.i [2018-03-23 11:41:57,649 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fdiff_usafe_false_valid_deref_i__diff ('diff') in diff_usafe_false-valid-deref.i [2018-03-23 11:41:57,649 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 11:41:57,649 INFO L233 ultiparseSymbolTable]: [2018-03-23 11:41:57,664 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf043644f8 [2018-03-23 11:41:57,668 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 11:41:57,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-23 11:41:57,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 11:41:57,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 11:41:57,677 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 11:41:57,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673da5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57, skipping insertion in model container [2018-03-23 11:41:57,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,694 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:41:57,707 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:41:57,837 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:41:57,862 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:41:57,866 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-03-23 11:41:57,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57 WrapperNode [2018-03-23 11:41:57,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 11:41:57,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 11:41:57,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 11:41:57,875 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 11:41:57,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (1/1) ... [2018-03-23 11:41:57,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 11:41:57,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 11:41:57,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 11:41:57,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 11:41:57,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (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 11:41:57,964 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 11:41:57,964 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 11:41:57,964 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fdiff_usafe_false_valid_deref_i__diff [2018-03-23 11:41:57,964 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 11:41:57,965 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-23 11:41:57,965 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fdiff_usafe_false_valid_deref_i__diff [2018-03-23 11:41:57,965 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-23 11:41:57,965 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-23 11:41:57,965 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 11:41:57,965 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 11:41:57,965 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 11:41:57,966 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-23 11:41:57,966 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 11:41:58,286 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 11:41:58,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:41:58 BoogieIcfgContainer [2018-03-23 11:41:58,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 11:41:58,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 11:41:58,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 11:41:58,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 11:41:58,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 11:41:57" (1/3) ... [2018-03-23 11:41:58,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d05ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:41:58, skipping insertion in model container [2018-03-23 11:41:58,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:41:57" (2/3) ... [2018-03-23 11:41:58,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d05ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:41:58, skipping insertion in model container [2018-03-23 11:41:58,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:41:58" (3/3) ... [2018-03-23 11:41:58,294 INFO L107 eAbstractionObserver]: Analyzing ICFG diff_usafe_false-valid-deref.i [2018-03-23 11:41:58,301 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 11:41:58,308 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-03-23 11:41:58,345 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 11:41:58,345 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 11:41:58,346 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 11:41:58,346 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 11:41:58,346 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 11:41:58,346 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 11:41:58,346 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 11:41:58,346 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 11:41:58,346 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 11:41:58,347 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 11:41:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-03-23 11:41:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-03-23 11:41:58,371 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:41:58,372 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:41:58,372 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr5RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr3RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr1RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr7RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr2RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr6RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr4RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr0RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-23 11:41:58,376 INFO L82 PathProgramCache]: Analyzing trace with hash 38396996, now seen corresponding path program 1 times [2018-03-23 11:41:58,378 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:41:58,378 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:41:58,417 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:41:58,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:41:58,418 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:41:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:41:58,474 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:41:58,511 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 11:41:58,514 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:41:58,514 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-03-23 11:41:58,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-23 11:41:58,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-23 11:41:58,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-23 11:41:58,528 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-03-23 11:41:58,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:41:58,550 INFO L93 Difference]: Finished difference Result 111 states and 122 transitions. [2018-03-23 11:41:58,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-23 11:41:58,552 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2018-03-23 11:41:58,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:41:58,560 INFO L225 Difference]: With dead ends: 111 [2018-03-23 11:41:58,561 INFO L226 Difference]: Without dead ends: 61 [2018-03-23 11:41:58,564 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-23 11:41:58,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-03-23 11:41:58,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-03-23 11:41:58,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-03-23 11:41:58,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-03-23 11:41:58,594 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 31 [2018-03-23 11:41:58,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:41:58,595 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-03-23 11:41:58,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-23 11:41:58,595 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-03-23 11:41:58,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-03-23 11:41:58,596 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:41:58,596 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:41:58,596 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr5RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr3RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr1RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr7RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr2RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr6RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr4RequiresViolation, __U_MULTI_fdiff_usafe_false_valid_deref_i__diffErr0RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-03-23 11:41:58,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1610659954, now seen corresponding path program 1 times [2018-03-23 11:41:58,597 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:41:58,597 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:41:58,598 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:41:58,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:41:58,598 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:41:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:41:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:41:58,663 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-03-23 11:41:58,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 11:41:58 BoogieIcfgContainer [2018-03-23 11:41:58,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 11:41:58,698 INFO L168 Benchmark]: Toolchain (without parser) took 1030.01 ms. Allocated memory was 305.7 MB in the beginning and 469.8 MB in the end (delta: 164.1 MB). Free memory was 250.1 MB in the beginning and 406.5 MB in the end (delta: -156.5 MB). Peak memory consumption was 7.7 MB. Max. memory is 5.3 GB. [2018-03-23 11:41:58,700 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 305.7 MB. Free memory is still 269.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 11:41:58,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.42 ms. Allocated memory is still 305.7 MB. Free memory was 250.1 MB in the beginning and 240.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:41:58,701 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 ms. Allocated memory is still 305.7 MB. Free memory was 240.0 MB in the beginning and 239.0 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. [2018-03-23 11:41:58,701 INFO L168 Benchmark]: RCFGBuilder took 384.27 ms. Allocated memory was 305.7 MB in the beginning and 469.8 MB in the end (delta: 164.1 MB). Free memory was 238.0 MB in the beginning and 434.5 MB in the end (delta: -196.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-03-23 11:41:58,702 INFO L168 Benchmark]: TraceAbstraction took 410.15 ms. Allocated memory is still 469.8 MB. Free memory was 434.5 MB in the beginning and 406.5 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:41:58,704 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 305.7 MB. Free memory is still 269.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 202.42 ms. Allocated memory is still 305.7 MB. Free memory was 250.1 MB in the beginning and 240.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.98 ms. Allocated memory is still 305.7 MB. Free memory was 240.0 MB in the beginning and 239.0 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. * RCFGBuilder took 384.27 ms. Allocated memory was 305.7 MB in the beginning and 469.8 MB in the end (delta: 164.1 MB). Free memory was 238.0 MB in the beginning and 434.5 MB in the end (delta: -196.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 410.15 ms. Allocated memory is still 469.8 MB. Free memory was 434.5 MB in the beginning and 406.5 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L27] int *A; [L28] int Alen = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, Alen=1] [L29] int *B; VAL [Alen=1] [L30] int Blen = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, Alen=1, Blen=1] [L31] int *D; VAL [Alen=1, Blen=1] [L32] CALL diff(A, Alen, B, Blen, D) VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, B={5:6}, D={7:9}] [L4] int k = 0; VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, k=0] [L5] int i = 0; VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, i=0, k=0] [L6] int l1 = Alen; VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, i=0, k=0, l1=1] [L7] int l2 = Blen; VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, i=0, k=0, l1=1, l2=1] [L8] int found; VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, i=0, k=0, l1=1, l2=1] [L9] COND TRUE i < l1 VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, i=0, k=0, l1=1, l2=1] [L10] int j = 0; VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, i=0, j=0, k=0, l1=1, l2=1] [L11] found = 0 VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, found=0, i=0, j=0, k=0, l1=1, l2=1] [L12] COND TRUE j < l2 && !found VAL [\old(Alen)=1, \old(Blen)=1, A={2:10}, A={2:10}, Alen=1, B={5:6}, B={5:6}, Blen=1, D={7:9}, D={7:9}, found=0, i=0, j=0, k=0, l1=1, l2=1] [L13] FCALL A[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 9 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 71 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred 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, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 900 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/diff_usafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-23_11-41-58-711.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diff_usafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_11-41-58-711.csv Received shutdown request...