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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 22:53:08,422 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 22:53:08,423 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 22:53:08,433 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 22:53:08,433 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 22:53:08,434 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 22:53:08,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 22:53:08,436 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 22:53:08,438 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 22:53:08,439 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 22:53:08,439 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 22:53:08,440 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 22:53:08,441 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 22:53:08,441 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 22:53:08,442 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 22:53:08,444 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 22:53:08,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 22:53:08,447 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 22:53:08,447 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 22:53:08,448 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 22:53:08,450 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 22:53:08,450 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 22:53:08,450 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 22:53:08,451 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 22:53:08,452 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 22:53:08,453 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 22:53:08,453 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 22:53:08,454 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 22:53:08,454 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 22:53:08,454 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 22:53:08,455 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 22:53:08,455 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-11 22:53:08,477 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 22:53:08,478 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 22:53:08,479 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 22:53:08,479 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 22:53:08,479 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 22:53:08,479 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 22:53:08,479 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 22:53:08,479 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 22:53:08,480 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 22:53:08,480 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 22:53:08,480 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 22:53:08,480 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 22:53:08,480 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 22:53:08,480 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 22:53:08,481 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 22:53:08,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 22:53:08,481 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 22:53:08,481 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 22:53:08,481 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 22:53:08,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 22:53:08,482 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 22:53:08,482 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 22:53:08,482 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 22:53:08,482 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 22:53:08,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 22:53:08,524 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 22:53:08,528 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 22:53:08,529 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 22:53:08,529 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 22:53:08,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 22:53:08,887 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGc75e2c08a [2018-04-11 22:53:08,973 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 22:53:08,973 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 22:53:08,974 INFO L168 CDTParser]: Scanning ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 22:53:08,974 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 22:53:08,974 INFO L215 ultiparseSymbolTable]: [2018-04-11 22:53:08,974 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 22:53:08,974 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 22:53:08,974 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 22:53:08,974 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 22:53:08,975 INFO L233 ultiparseSymbolTable]: [2018-04-11 22:53:08,986 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGc75e2c08a [2018-04-11 22:53:08,989 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 22:53:08,990 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 22:53:08,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 22:53:08,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 22:53:08,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 22:53:08,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 10:53:08" (1/1) ... [2018-04-11 22:53:08,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b363cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:08, skipping insertion in model container [2018-04-11 22:53:08,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 10:53:08" (1/1) ... [2018-04-11 22:53:09,007 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 22:53:09,016 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 22:53:09,108 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 22:53:09,125 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 22:53:09,129 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-11 22:53:09,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09 WrapperNode [2018-04-11 22:53:09,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 22:53:09,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 22:53:09,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 22:53:09,136 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 22:53:09,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (1/1) ... [2018-04-11 22:53:09,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (1/1) ... [2018-04-11 22:53:09,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (1/1) ... [2018-04-11 22:53:09,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (1/1) ... [2018-04-11 22:53:09,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (1/1) ... [2018-04-11 22:53:09,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (1/1) ... [2018-04-11 22:53:09,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (1/1) ... [2018-04-11 22:53:09,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 22:53:09,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 22:53:09,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 22:53:09,163 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 22:53:09,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 22:53:09,204 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 22:53:09,204 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 22:53:09,204 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-11 22:53:09,205 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 22:53:09,205 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-11 22:53:09,205 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 22:53:09,205 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 22:53:09,205 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 22:53:09,205 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 22:53:09,205 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 22:53:09,205 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 22:53:09,205 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 22:53:09,206 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 22:53:09,438 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 22:53:09,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:53:09 BoogieIcfgContainer [2018-04-11 22:53:09,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 22:53:09,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 22:53:09,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 22:53:09,442 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 22:53:09,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 10:53:08" (1/3) ... [2018-04-11 22:53:09,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afafe17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:53:09, skipping insertion in model container [2018-04-11 22:53:09,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:53:09" (2/3) ... [2018-04-11 22:53:09,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afafe17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:53:09, skipping insertion in model container [2018-04-11 22:53:09,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:53:09" (3/3) ... [2018-04-11 22:53:09,444 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 22:53:09,450 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 22:53:09,456 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-04-11 22:53:09,485 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 22:53:09,485 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 22:53:09,486 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 22:53:09,486 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 22:53:09,486 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 22:53:09,486 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 22:53:09,486 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 22:53:09,486 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 22:53:09,487 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 22:53:09,487 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 22:53:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-04-11 22:53:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 22:53:09,508 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 22:53:09,509 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 22:53:09,509 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr2RequiresViolation]=== [2018-04-11 22:53:09,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1842966804, now seen corresponding path program 1 times [2018-04-11 22:53:09,515 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 22:53:09,516 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 22:53:09,548 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 22:53:09,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 22:53:09,548 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 22:53:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 22:53:09,573 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 22:53:09,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 22:53:09,592 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 22:53:09,592 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 22:53:09,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-11 22:53:09,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-11 22:53:09,603 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-11 22:53:09,605 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-04-11 22:53:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 22:53:09,622 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-04-11 22:53:09,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-11 22:53:09,624 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-11 22:53:09,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 22:53:09,630 INFO L225 Difference]: With dead ends: 48 [2018-04-11 22:53:09,630 INFO L226 Difference]: Without dead ends: 45 [2018-04-11 22:53:09,631 INFO L567 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 [2018-04-11 22:53:09,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-04-11 22:53:09,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-04-11 22:53:09,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-04-11 22:53:09,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-04-11 22:53:09,655 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 13 [2018-04-11 22:53:09,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 22:53:09,655 INFO L459 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-04-11 22:53:09,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-11 22:53:09,655 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-04-11 22:53:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 22:53:09,656 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 22:53:09,656 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 22:53:09,656 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr2RequiresViolation]=== [2018-04-11 22:53:09,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2008787937, now seen corresponding path program 1 times [2018-04-11 22:53:09,656 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 22:53:09,656 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 22:53:09,657 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 22:53:09,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 22:53:09,657 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 22:53:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 22:53:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 22:53:09,700 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 22:53:09,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 10:53:09 BoogieIcfgContainer [2018-04-11 22:53:09,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 22:53:09,718 INFO L168 Benchmark]: Toolchain (without parser) took 728.97 ms. Allocated memory was 313.5 MB in the beginning and 377.5 MB in the end (delta: 64.0 MB). Free memory was 263.1 MB in the beginning and 317.3 MB in the end (delta: -54.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 5.3 GB. [2018-04-11 22:53:09,720 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 313.5 MB. Free memory is still 281.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 22:53:09,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.50 ms. Allocated memory is still 313.5 MB. Free memory was 263.1 MB in the beginning and 250.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. [2018-04-11 22:53:09,721 INFO L168 Benchmark]: Boogie Preprocessor took 26.34 ms. Allocated memory is still 313.5 MB. Free memory was 250.3 MB in the beginning and 249.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 22:53:09,721 INFO L168 Benchmark]: RCFGBuilder took 276.27 ms. Allocated memory was 313.5 MB in the beginning and 377.5 MB in the end (delta: 64.0 MB). Free memory was 249.0 MB in the beginning and 341.4 MB in the end (delta: -92.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. [2018-04-11 22:53:09,722 INFO L168 Benchmark]: TraceAbstraction took 278.18 ms. Allocated memory is still 377.5 MB. Free memory was 341.4 MB in the beginning and 317.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-11 22:53:09,724 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 313.5 MB. Free memory is still 281.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 145.50 ms. Allocated memory is still 313.5 MB. Free memory was 263.1 MB in the beginning and 250.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.34 ms. Allocated memory is still 313.5 MB. Free memory was 250.3 MB in the beginning and 249.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 276.27 ms. Allocated memory was 313.5 MB in the beginning and 377.5 MB in the end (delta: 64.0 MB). Free memory was 249.0 MB in the beginning and 341.4 MB in the end (delta: -92.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 278.18 ms. Allocated memory is still 377.5 MB. Free memory was 341.4 MB in the beginning and 317.3 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.generator.traceabstraction: - CounterExampleResult [Line: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; [L21] FCALL int i, b[100]; VAL [b={402:0}] [L22] i = 0 VAL [b={402:0}, i=0] [L22] COND TRUE i < 100 VAL [b={402:0}, i=0] [L23] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={402:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={402:0}, b={402:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={402:0}, b={402:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={402:0}, b={402:0}, i=0, n=0, size=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 48 locations, 8 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 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=48occurred 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, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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 /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_22-53-09-731.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_22-53-09-731.csv Received shutdown request...