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_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 13:50:54,745 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 13:50:54,746 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 13:50:54,757 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 13:50:54,758 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 13:50:54,759 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 13:50:54,760 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 13:50:54,761 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 13:50:54,763 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 13:50:54,764 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 13:50:54,765 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 13:50:54,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 13:50:54,766 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 13:50:54,767 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 13:50:54,767 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 13:50:54,769 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 13:50:54,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 13:50:54,772 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 13:50:54,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 13:50:54,774 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 13:50:54,776 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 13:50:54,776 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 13:50:54,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 13:50:54,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 13:50:54,778 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 13:50:54,779 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 13:50:54,779 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 13:50:54,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 13:50:54,780 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 13:50:54,780 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 13:50:54,781 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 13:50:54,781 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 [2018-04-11 13:50:54,802 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 13:50:54,803 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 13:50:54,804 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 13:50:54,804 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 13:50:54,804 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 13:50:54,804 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 13:50:54,805 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 13:50:54,805 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 13:50:54,805 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 13:50:54,805 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 13:50:54,805 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 13:50:54,805 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 13:50:54,805 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 13:50:54,806 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 13:50:54,806 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 13:50:54,806 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 13:50:54,806 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 13:50:54,806 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 13:50:54,807 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 13:50:54,807 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 13:50:54,807 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 13:50:54,807 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 13:50:54,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 13:50:54,850 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 13:50:54,856 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 13:50:54,857 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 13:50:54,858 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 13:50:54,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 13:50:55,156 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa2a4affc5 [2018-04-11 13:50:55,252 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 13:50:55,252 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 13:50:55,252 INFO L168 CDTParser]: Scanning ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 13:50:55,253 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 13:50:55,253 INFO L215 ultiparseSymbolTable]: [2018-04-11 13:50:55,253 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 13:50:55,253 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 13:50:55,253 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 13:50:55,253 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 13:50:55,253 INFO L233 ultiparseSymbolTable]: [2018-04-11 13:50:55,265 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa2a4affc5 [2018-04-11 13:50:55,269 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 13:50:55,270 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 13:50:55,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 13:50:55,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 13:50:55,274 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 13:50:55,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383da413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55, skipping insertion in model container [2018-04-11 13:50:55,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,287 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 13:50:55,295 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 13:50:55,389 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 13:50:55,406 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 13:50:55,409 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-11 13:50:55,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55 WrapperNode [2018-04-11 13:50:55,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 13:50:55,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 13:50:55,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 13:50:55,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 13:50:55,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (1/1) ... [2018-04-11 13:50:55,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 13:50:55,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 13:50:55,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 13:50:55,436 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 13:50:55,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (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 13:50:55,470 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 13:50:55,470 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 13:50:55,470 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-11 13:50:55,470 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 13:50:55,471 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 13:50:55,676 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 13:50:55,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 01:50:55 BoogieIcfgContainer [2018-04-11 13:50:55,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 13:50:55,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 13:50:55,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 13:50:55,681 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 13:50:55,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 01:50:55" (1/3) ... [2018-04-11 13:50:55,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116cd630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 01:50:55, skipping insertion in model container [2018-04-11 13:50:55,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:55" (2/3) ... [2018-04-11 13:50:55,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116cd630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 01:50:55, skipping insertion in model container [2018-04-11 13:50:55,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 01:50:55" (3/3) ... [2018-04-11 13:50:55,684 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 13:50:55,691 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-11 13:50:55,697 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-04-11 13:50:55,723 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 13:50:55,723 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 13:50:55,723 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 13:50:55,723 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-04-11 13:50:55,724 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-11 13:50:55,724 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 13:50:55,724 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 13:50:55,724 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 13:50:55,724 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 13:50:55,724 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 13:50:55,732 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-04-11 13:50:55,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 13:50:55,738 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 13:50:55,738 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 13:50:55,739 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 13:50:55,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1842966804, now seen corresponding path program 1 times [2018-04-11 13:50:55,773 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 13:50:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 13:50:55,796 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 13:50:55,815 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 13:50:55,817 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 13:50:55,817 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 13:50:55,818 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 13:50:55,818 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 13:50:55,818 INFO L182 omatonBuilderFactory]: Interpolants [51#true, 52#false] [2018-04-11 13:50:55,818 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 13:50:55,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-11 13:50:55,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-11 13:50:55,828 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-11 13:50:55,829 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-04-11 13:50:55,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 13:50:55,844 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-04-11 13:50:55,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-11 13:50:55,845 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-11 13:50:55,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 13:50:55,852 INFO L225 Difference]: With dead ends: 48 [2018-04-11 13:50:55,852 INFO L226 Difference]: Without dead ends: 45 [2018-04-11 13:50:55,854 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 13:50:55,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-04-11 13:50:55,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-04-11 13:50:55,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-04-11 13:50:55,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-04-11 13:50:55,879 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 13 [2018-04-11 13:50:55,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 13:50:55,879 INFO L459 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-04-11 13:50:55,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-11 13:50:55,879 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-04-11 13:50:55,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 13:50:55,880 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 13:50:55,880 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 13:50:55,880 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 13:50:55,880 INFO L82 PathProgramCache]: Analyzing trace with hash 2008787937, now seen corresponding path program 1 times [2018-04-11 13:50:55,881 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 13:50:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 13:50:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 13:50:55,928 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 13:50:55,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 01:50:55 BoogieIcfgContainer [2018-04-11 13:50:55,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 13:50:55,944 INFO L168 Benchmark]: Toolchain (without parser) took 675.49 ms. Allocated memory was 403.7 MB in the beginning and 596.6 MB in the end (delta: 192.9 MB). Free memory was 339.8 MB in the beginning and 535.4 MB in the end (delta: -195.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 13:50:55,946 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 403.7 MB. Free memory is still 361.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 13:50:55,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.28 ms. Allocated memory is still 403.7 MB. Free memory was 339.8 MB in the beginning and 331.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:55,946 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 ms. Allocated memory is still 403.7 MB. Free memory was 331.9 MB in the beginning and 329.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:55,948 INFO L168 Benchmark]: RCFGBuilder took 241.15 ms. Allocated memory was 403.7 MB in the beginning and 596.6 MB in the end (delta: 192.9 MB). Free memory was 329.2 MB in the beginning and 559.2 MB in the end (delta: -230.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:55,948 INFO L168 Benchmark]: TraceAbstraction took 266.47 ms. Allocated memory is still 596.6 MB. Free memory was 559.2 MB in the beginning and 535.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:55,950 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 403.7 MB. Free memory is still 361.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 144.28 ms. Allocated memory is still 403.7 MB. Free memory was 339.8 MB in the beginning and 331.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.18 ms. Allocated memory is still 403.7 MB. Free memory was 331.9 MB in the beginning and 329.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 241.15 ms. Allocated memory was 403.7 MB in the beginning and 596.6 MB in the end (delta: 192.9 MB). Free memory was 329.2 MB in the beginning and 559.2 MB in the end (delta: -230.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 266.47 ms. Allocated memory is still 596.6 MB. Free memory was 559.2 MB in the beginning and 535.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 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_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_13-50-55-956.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_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_13-50-55-956.csv Received shutdown request...