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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 14:56:17,966 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 14:56:17,967 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 14:56:17,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 14:56:17,981 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 14:56:17,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 14:56:17,982 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 14:56:17,984 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 14:56:17,986 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 14:56:17,987 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 14:56:17,988 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 14:56:17,988 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 14:56:17,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 14:56:17,990 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 14:56:17,991 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 14:56:17,992 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 14:56:17,994 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 14:56:17,996 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 14:56:17,997 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 14:56:17,998 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 14:56:18,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 14:56:18,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 14:56:18,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 14:56:18,002 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 14:56:18,003 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 14:56:18,003 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 14:56:18,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 14:56:18,004 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 14:56:18,005 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 14:56:18,005 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 14:56:18,005 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 14:56:18,006 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf [2018-04-10 14:56:18,020 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 14:56:18,020 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 14:56:18,021 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 14:56:18,022 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 14:56:18,022 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 14:56:18,022 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 14:56:18,022 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 14:56:18,022 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 14:56:18,022 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 14:56:18,022 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 14:56:18,022 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 14:56:18,023 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 14:56:18,023 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 14:56:18,023 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 14:56:18,023 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 14:56:18,023 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 14:56:18,023 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 14:56:18,023 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 14:56:18,023 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 14:56:18,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 14:56:18,024 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 14:56:18,024 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-04-10 14:56:18,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 14:56:18,063 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 14:56:18,066 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 14:56:18,067 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 14:56:18,067 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 14:56:18,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c [2018-04-10 14:56:18,341 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd2adec2af [2018-04-10 14:56:18,460 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 14:56:18,461 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 14:56:18,461 INFO L168 CDTParser]: Scanning ArraysOfVariableLength_false-valid-deref-write.c [2018-04-10 14:56:18,462 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 14:56:18,462 INFO L215 ultiparseSymbolTable]: [2018-04-10 14:56:18,462 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 14:56:18,462 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__foo ('foo') in ArraysOfVariableLength_false-valid-deref-write.c [2018-04-10 14:56:18,462 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength_false-valid-deref-write.c [2018-04-10 14:56:18,462 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 14:56:18,462 INFO L233 ultiparseSymbolTable]: [2018-04-10 14:56:18,475 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd2adec2af [2018-04-10 14:56:18,479 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 14:56:18,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 14:56:18,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 14:56:18,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 14:56:18,488 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 14:56:18,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@654c699b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18, skipping insertion in model container [2018-04-10 14:56:18,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,504 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 14:56:18,513 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 14:56:18,610 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 14:56:18,632 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 14:56:18,637 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 14:56:18,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18 WrapperNode [2018-04-10 14:56:18,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 14:56:18,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 14:56:18,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 14:56:18,646 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 14:56:18,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (1/1) ... [2018-04-10 14:56:18,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 14:56:18,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 14:56:18,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 14:56:18,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 14:56:18,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (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 [2018-04-10 14:56:18,716 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 14:56:18,716 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 14:56:18,716 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__foo [2018-04-10 14:56:18,716 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__foo [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 14:56:18,717 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 14:56:18,963 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 14:56:18,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 02:56:18 BoogieIcfgContainer [2018-04-10 14:56:18,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 14:56:18,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 14:56:18,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 14:56:18,967 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 14:56:18,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 02:56:18" (1/3) ... [2018-04-10 14:56:18,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227eb156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 02:56:18, skipping insertion in model container [2018-04-10 14:56:18,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 02:56:18" (2/3) ... [2018-04-10 14:56:18,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227eb156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 02:56:18, skipping insertion in model container [2018-04-10 14:56:18,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 02:56:18" (3/3) ... [2018-04-10 14:56:18,969 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-write.c [2018-04-10 14:56:18,975 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-10 14:56:18,981 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-04-10 14:56:19,007 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 14:56:19,008 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 14:56:19,008 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 14:56:19,008 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-04-10 14:56:19,008 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-10 14:56:19,008 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 14:56:19,008 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 14:56:19,008 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 14:56:19,008 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 14:56:19,009 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 14:56:19,020 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-04-10 14:56:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-10 14:56:19,027 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:56:19,027 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:56:19,027 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr0AssertViolationARRAY_INDEX, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 14:56:19,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1496456173, now seen corresponding path program 1 times [2018-04-10 14:56:19,067 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:56:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:56:19,090 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:56:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 14:56:19,114 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 14:56:19,115 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-10 14:56:19,115 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:56:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 14:56:19,116 INFO L182 omatonBuilderFactory]: Interpolants [52#true, 53#false] [2018-04-10 14:56:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 14:56:19,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-10 14:56:19,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-10 14:56:19,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-10 14:56:19,125 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-04-10 14:56:19,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:56:19,136 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2018-04-10 14:56:19,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-10 14:56:19,137 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-10 14:56:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:56:19,143 INFO L225 Difference]: With dead ends: 49 [2018-04-10 14:56:19,143 INFO L226 Difference]: Without dead ends: 46 [2018-04-10 14:56:19,144 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 [2018-04-10 14:56:19,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-04-10 14:56:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-04-10 14:56:19,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-04-10 14:56:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-04-10 14:56:19,165 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2018-04-10 14:56:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:56:19,165 INFO L459 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-04-10 14:56:19,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-10 14:56:19,165 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-04-10 14:56:19,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-10 14:56:19,166 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:56:19,166 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:56:19,166 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr0AssertViolationARRAY_INDEX, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 14:56:19,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1296989421, now seen corresponding path program 1 times [2018-04-10 14:56:19,167 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:56:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 14:56:19,175 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 14:56:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 14:56:19,194 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 14:56:19,194 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 14:56:19,194 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 14:56:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 14:56:19,195 INFO L182 omatonBuilderFactory]: Interpolants [149#true, 150#false, 151#(= main_~i~1 0)] [2018-04-10 14:56:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 14:56:19,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 14:56:19,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 14:56:19,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 14:56:19,196 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 3 states. [2018-04-10 14:56:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 14:56:19,230 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2018-04-10 14:56:19,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 14:56:19,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-04-10 14:56:19,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 14:56:19,233 INFO L225 Difference]: With dead ends: 67 [2018-04-10 14:56:19,233 INFO L226 Difference]: Without dead ends: 67 [2018-04-10 14:56:19,233 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 14:56:19,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-10 14:56:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2018-04-10 14:56:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-10 14:56:19,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-04-10 14:56:19,239 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 14 [2018-04-10 14:56:19,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 14:56:19,239 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-04-10 14:56:19,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 14:56:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-04-10 14:56:19,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-10 14:56:19,239 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 14:56:19,240 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 14:56:19,240 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__fooErr0AssertViolationARRAY_INDEX, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 14:56:19,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1464078804, now seen corresponding path program 1 times [2018-04-10 14:56:19,240 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 14:56:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 14:56:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 14:56:19,282 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 14:56:19,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 02:56:19 BoogieIcfgContainer [2018-04-10 14:56:19,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 14:56:19,297 INFO L168 Benchmark]: Toolchain (without parser) took 816.82 ms. Allocated memory was 414.2 MB in the beginning and 630.7 MB in the end (delta: 216.5 MB). Free memory was 357.2 MB in the beginning and 557.1 MB in the end (delta: -199.9 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. [2018-04-10 14:56:19,297 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 414.2 MB. Free memory is still 377.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 14:56:19,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.01 ms. Allocated memory is still 414.2 MB. Free memory was 357.2 MB in the beginning and 347.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 5.3 GB. [2018-04-10 14:56:19,298 INFO L168 Benchmark]: Boogie Preprocessor took 28.64 ms. Allocated memory is still 414.2 MB. Free memory was 347.8 MB in the beginning and 346.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-04-10 14:56:19,298 INFO L168 Benchmark]: RCFGBuilder took 288.50 ms. Allocated memory was 414.2 MB in the beginning and 630.7 MB in the end (delta: 216.5 MB). Free memory was 346.4 MB in the beginning and 593.9 MB in the end (delta: -247.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 5.3 GB. [2018-04-10 14:56:19,299 INFO L168 Benchmark]: TraceAbstraction took 332.13 ms. Allocated memory is still 630.7 MB. Free memory was 593.9 MB in the beginning and 557.1 MB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 5.3 GB. [2018-04-10 14:56:19,301 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 414.2 MB. Free memory is still 377.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 164.01 ms. Allocated memory is still 414.2 MB. Free memory was 357.2 MB in the beginning and 347.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.64 ms. Allocated memory is still 414.2 MB. Free memory was 347.8 MB in the beginning and 346.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 288.50 ms. Allocated memory was 414.2 MB in the beginning and 630.7 MB in the end (delta: 216.5 MB). Free memory was 346.4 MB in the beginning and 593.9 MB in the end (delta: -247.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 332.13 ms. Allocated memory is still 630.7 MB. Free memory was 593.9 MB in the beginning and 557.1 MB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 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={403:0}] [L22] i = 0 VAL [b={403:0}, i=0] [L22] COND TRUE i < 100 VAL [b={403:0}, i=0] [L23] CALL foo(i, b, i + 1) VAL [\old(n)=0, \old(size)=1, b={403:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=1, b={403:0}, b={403:0}, i=0, n=0, size=1] [L14] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, b={403:0}, b={403:0}, i=0, n=0, size=1] [L15] a[i] VAL [\old(n)=0, \old(size)=1, b={403:0}, b={403:0}, i=0, n=0, size=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 49 locations, 8 error locations. UNSAFE Result, 0.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 92 SDtfs, 17 SDslu, 34 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=2, 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, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_14-56-19-308.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_14-56-19-308.csv Received shutdown request...