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_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 17:05:36,962 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 17:05:36,963 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 17:05:36,975 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 17:05:36,976 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 17:05:36,976 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 17:05:36,977 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 17:05:36,978 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 17:05:36,980 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 17:05:36,980 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 17:05:36,981 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 17:05:36,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 17:05:36,982 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 17:05:36,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 17:05:36,983 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 17:05:36,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 17:05:36,986 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 17:05:36,988 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 17:05:36,989 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 17:05:36,990 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 17:05:36,992 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 17:05:36,992 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 17:05:36,992 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 17:05:36,993 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 17:05:36,994 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 17:05:36,994 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 17:05:36,995 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 17:05:36,995 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 17:05:36,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 17:05:36,996 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 17:05:36,996 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 17:05:36,997 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-04-10 17:05:37,015 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 17:05:37,015 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 17:05:37,016 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 17:05:37,016 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 17:05:37,016 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 17:05:37,017 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 17:05:37,017 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 17:05:37,017 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 17:05:37,018 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 17:05:37,018 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 17:05:37,018 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 17:05:37,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 17:05:37,018 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 17:05:37,018 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-10 17:05:37,018 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-10 17:05:37,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:37,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 17:05:37,050 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 17:05:37,053 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 17:05:37,054 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 17:05:37,054 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 17:05:37,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-04-10 17:05:37,330 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG9d0167b5e [2018-04-10 17:05:37,442 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 17:05:37,442 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 17:05:37,442 INFO L168 CDTParser]: Scanning ArraysOfVariableLength_false-valid-deref-read.c [2018-04-10 17:05:37,443 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 17:05:37,443 INFO L215 ultiparseSymbolTable]: [2018-04-10 17:05:37,443 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 17:05:37,443 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-10 17:05:37,444 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-10 17:05:37,444 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 17:05:37,444 INFO L233 ultiparseSymbolTable]: [2018-04-10 17:05:37,457 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG9d0167b5e [2018-04-10 17:05:37,460 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 17:05:37,462 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 17:05:37,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 17:05:37,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 17:05:37,466 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 17:05:37,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b5c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37, skipping insertion in model container [2018-04-10 17:05:37,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,482 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 17:05:37,493 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 17:05:37,607 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 17:05:37,630 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 17:05:37,635 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 17:05:37,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37 WrapperNode [2018-04-10 17:05:37,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 17:05:37,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 17:05:37,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 17:05:37,644 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 17:05:37,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (1/1) ... [2018-04-10 17:05:37,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 17:05:37,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 17:05:37,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 17:05:37,673 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 17:05:37,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (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 17:05:37,718 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 17:05:37,718 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 17:05:37,718 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-10 17:05:37,718 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 17:05:37,718 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-10 17:05:37,718 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 17:05:37,719 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 17:05:37,719 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 17:05:37,719 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 17:05:37,719 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 17:05:37,719 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 17:05:37,719 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 17:05:37,719 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 17:05:37,907 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 17:05:37,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 05:05:37 BoogieIcfgContainer [2018-04-10 17:05:37,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 17:05:37,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 17:05:37,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 17:05:37,911 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 17:05:37,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 05:05:37" (1/3) ... [2018-04-10 17:05:37,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b924a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 05:05:37, skipping insertion in model container [2018-04-10 17:05:37,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 05:05:37" (2/3) ... [2018-04-10 17:05:37,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b924a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 05:05:37, skipping insertion in model container [2018-04-10 17:05:37,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 05:05:37" (3/3) ... [2018-04-10 17:05:37,914 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-read.c [2018-04-10 17:05:37,920 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-10 17:05:37,925 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-04-10 17:05:37,952 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 17:05:37,952 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 17:05:37,952 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 17:05:37,952 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-10 17:05:37,953 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-10 17:05:37,953 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 17:05:37,953 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 17:05:37,953 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 17:05:37,953 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 17:05:37,954 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 17:05:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-04-10 17:05:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-10 17:05:37,974 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:05:37,975 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:05:37,975 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]=== [2018-04-10 17:05:37,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1842966804, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:37,988 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:05:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 17:05:38,041 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 17:05:38,060 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 17:05:38,060 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 17:05:38,061 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-10 17:05:38,061 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 17:05:38,061 INFO L182 omatonBuilderFactory]: Interpolants [51#true, 52#false, 56#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-10 17:05:38,061 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 17:05:38,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 17:05:38,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 17:05:38,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 17:05:38,071 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2018-04-10 17:05:38,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 17:05:38,165 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-04-10 17:05:38,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 17:05:38,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-04-10 17:05:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 17:05:38,173 INFO L225 Difference]: With dead ends: 48 [2018-04-10 17:05:38,174 INFO L226 Difference]: Without dead ends: 45 [2018-04-10 17:05:38,175 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 17:05:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-04-10 17:05:38,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-04-10 17:05:38,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-04-10 17:05:38,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-04-10 17:05:38,198 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 13 [2018-04-10 17:05:38,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 17:05:38,198 INFO L459 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-04-10 17:05:38,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 17:05:38,199 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-04-10 17:05:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-10 17:05:38,199 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 17:05:38,199 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 17:05:38,199 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]=== [2018-04-10 17:05:38,199 INFO L82 PathProgramCache]: Analyzing trace with hash 2008787937, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 17:05:38,202 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 17:05:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 17:05:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 17:05:38,246 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 17:05:38,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 05:05:38 BoogieIcfgContainer [2018-04-10 17:05:38,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 17:05:38,261 INFO L168 Benchmark]: Toolchain (without parser) took 800.58 ms. Allocated memory was 403.7 MB in the beginning and 614.5 MB in the end (delta: 210.8 MB). Free memory was 339.5 MB in the beginning and 543.0 MB in the end (delta: -203.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:38,263 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 403.7 MB. Free memory is still 358.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 17:05:38,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.41 ms. Allocated memory is still 403.7 MB. Free memory was 339.5 MB in the beginning and 330.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:38,264 INFO L168 Benchmark]: Boogie Preprocessor took 28.74 ms. Allocated memory is still 403.7 MB. Free memory was 330.2 MB in the beginning and 327.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:38,264 INFO L168 Benchmark]: RCFGBuilder took 234.89 ms. Allocated memory was 403.7 MB in the beginning and 614.5 MB in the end (delta: 210.8 MB). Free memory was 327.6 MB in the beginning and 579.6 MB in the end (delta: -252.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:38,265 INFO L168 Benchmark]: TraceAbstraction took 352.49 ms. Allocated memory is still 614.5 MB. Free memory was 579.6 MB in the beginning and 543.0 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 5.3 GB. [2018-04-10 17:05:38,267 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 403.7 MB. Free memory is still 358.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 181.41 ms. Allocated memory is still 403.7 MB. Free memory was 339.5 MB in the beginning and 330.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.74 ms. Allocated memory is still 403.7 MB. Free memory was 330.2 MB in the beginning and 327.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 234.89 ms. Allocated memory was 403.7 MB in the beginning and 614.5 MB in the end (delta: 210.8 MB). Free memory was 327.6 MB in the beginning and 579.6 MB in the end (delta: -252.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 352.49 ms. Allocated memory is still 614.5 MB. Free memory was 579.6 MB in the beginning and 543.0 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 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={5:0}] [L22] i = 0 VAL [b={5:0}, i=0] [L22] COND TRUE i < 100 VAL [b={5:0}, i=0] [L23] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={5:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={5:0}, b={5:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={5:0}, b={5:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={5:0}, b={5:0}, i=0, n=0, size=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 48 locations, 8 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 34 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 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, 252 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_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_17-05-38-275.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_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_17-05-38-275.csv Received shutdown request...