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-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 13:50:57,643 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 13:50:57,645 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 13:50:57,657 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 13:50:57,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 13:50:57,658 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 13:50:57,659 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 13:50:57,661 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 13:50:57,663 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 13:50:57,664 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 13:50:57,664 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 13:50:57,665 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 13:50:57,666 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 13:50:57,668 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 13:50:57,669 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 13:50:57,671 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 13:50:57,672 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 13:50:57,674 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 13:50:57,675 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 13:50:57,676 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 13:50:57,678 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 13:50:57,678 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 13:50:57,678 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 13:50:57,679 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 13:50:57,680 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 13:50:57,681 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 13:50:57,681 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 13:50:57,682 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 13:50:57,683 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 13:50:57,683 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 13:50:57,684 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 13:50:57,684 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 13:50:57,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 13:50:57,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 13:50:57,707 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 13:50:57,708 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 13:50:57,708 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 13:50:57,708 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 13:50:57,708 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 13:50:57,708 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 13:50:57,708 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 13:50:57,709 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 13:50:57,709 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 13:50:57,710 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 13:50:57,710 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 13:50:57,710 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 13:50:57,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 13:50:57,749 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 13:50:57,752 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 13:50:57,753 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 13:50:57,753 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 13:50:57,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c [2018-04-11 13:50:58,125 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGc02712107 [2018-04-11 13:50:58,213 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 13:50:58,213 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 13:50:58,213 INFO L168 CDTParser]: Scanning ArraysOfVariableLength_false-valid-deref-write.c [2018-04-11 13:50:58,214 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 13:50:58,214 INFO L215 ultiparseSymbolTable]: [2018-04-11 13:50:58,214 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 13:50:58,214 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__foo ('foo') in ArraysOfVariableLength_false-valid-deref-write.c [2018-04-11 13:50:58,214 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength_false-valid-deref-write.c [2018-04-11 13:50:58,214 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 13:50:58,214 INFO L233 ultiparseSymbolTable]: [2018-04-11 13:50:58,225 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGc02712107 [2018-04-11 13:50:58,229 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 13:50:58,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 13:50:58,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 13:50:58,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 13:50:58,235 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 13:50:58,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47de5149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58, skipping insertion in model container [2018-04-11 13:50:58,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,247 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 13:50:58,255 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 13:50:58,349 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 13:50:58,367 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 13:50:58,372 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-11 13:50:58,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58 WrapperNode [2018-04-11 13:50:58,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 13:50:58,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 13:50:58,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 13:50:58,381 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 13:50:58,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (1/1) ... [2018-04-11 13:50:58,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 13:50:58,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 13:50:58,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 13:50:58,408 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 13:50:58,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (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 13:50:58,446 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 13:50:58,446 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 13:50:58,447 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__foo [2018-04-11 13:50:58,447 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_write_c__foo [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 13:50:58,447 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 13:50:58,625 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 13:50:58,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 01:50:58 BoogieIcfgContainer [2018-04-11 13:50:58,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 13:50:58,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 13:50:58,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 13:50:58,627 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 13:50:58,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 01:50:58" (1/3) ... [2018-04-11 13:50:58,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc106a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 01:50:58, skipping insertion in model container [2018-04-11 13:50:58,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 01:50:58" (2/3) ... [2018-04-11 13:50:58,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc106a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 01:50:58, skipping insertion in model container [2018-04-11 13:50:58,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 01:50:58" (3/3) ... [2018-04-11 13:50:58,629 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-write.c [2018-04-11 13:50:58,635 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-11 13:50:58,641 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-04-11 13:50:58,669 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 13:50:58,670 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 13:50:58,670 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 13:50:58,670 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-04-11 13:50:58,670 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-11 13:50:58,670 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 13:50:58,670 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 13:50:58,671 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 13:50:58,671 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 13:50:58,672 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 13:50:58,687 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-04-11 13:50:58,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 13:50:58,694 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 13:50:58,695 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 13:50:58,695 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]=== [2018-04-11 13:50:58,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1496456173, now seen corresponding path program 1 times [2018-04-11 13:50:58,738 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 13:50:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 13:50:58,765 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 13:50:58,786 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 13:50:58,789 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 13:50:58,789 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 13:50:58,790 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 13:50:58,790 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 13:50:58,791 INFO L182 omatonBuilderFactory]: Interpolants [52#true, 53#false] [2018-04-11 13:50:58,791 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 13:50:58,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-11 13:50:58,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-11 13:50:58,801 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-11 13:50:58,803 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-04-11 13:50:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 13:50:58,818 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2018-04-11 13:50:58,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-11 13:50:58,819 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-11 13:50:58,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 13:50:58,826 INFO L225 Difference]: With dead ends: 49 [2018-04-11 13:50:58,826 INFO L226 Difference]: Without dead ends: 46 [2018-04-11 13:50:58,828 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 13:50:58,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-04-11 13:50:58,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-04-11 13:50:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-04-11 13:50:58,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-04-11 13:50:58,855 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2018-04-11 13:50:58,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 13:50:58,855 INFO L459 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-04-11 13:50:58,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-11 13:50:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-04-11 13:50:58,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 13:50:58,856 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 13:50:58,856 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 13:50:58,856 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]=== [2018-04-11 13:50:58,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1296989421, now seen corresponding path program 1 times [2018-04-11 13:50:58,857 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 13:50:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 13:50:58,869 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 13:50:58,902 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 13:50:58,903 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 13:50:58,903 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 13:50:58,903 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 13:50:58,903 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 13:50:58,904 INFO L182 omatonBuilderFactory]: Interpolants [149#true, 150#false, 151#(= main_~i~1 0)] [2018-04-11 13:50:58,904 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 13:50:58,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 13:50:58,906 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 13:50:58,906 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 13:50:58,906 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 3 states. [2018-04-11 13:50:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 13:50:58,975 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2018-04-11 13:50:58,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 13:50:58,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-04-11 13:50:58,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 13:50:58,978 INFO L225 Difference]: With dead ends: 67 [2018-04-11 13:50:58,979 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 13:50:58,979 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 [2018-04-11 13:50:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 13:50:58,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2018-04-11 13:50:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 13:50:58,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-04-11 13:50:58,987 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 14 [2018-04-11 13:50:58,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 13:50:58,987 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-04-11 13:50:58,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 13:50:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-04-11 13:50:58,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 13:50:58,988 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 13:50:58,988 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 13:50:58,988 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]=== [2018-04-11 13:50:58,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1464078804, now seen corresponding path program 1 times [2018-04-11 13:50:58,989 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 13:50:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 13:50:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 13:50:59,031 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 13:50:59,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 01:50:59 BoogieIcfgContainer [2018-04-11 13:50:59,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 13:50:59,044 INFO L168 Benchmark]: Toolchain (without parser) took 814.55 ms. Allocated memory was 402.1 MB in the beginning and 587.2 MB in the end (delta: 185.1 MB). Free memory was 338.3 MB in the beginning and 512.9 MB in the end (delta: -174.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:59,045 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 402.1 MB. Free memory is still 361.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 13:50:59,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.09 ms. Allocated memory is still 402.1 MB. Free memory was 338.3 MB in the beginning and 330.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:59,045 INFO L168 Benchmark]: Boogie Preprocessor took 27.19 ms. Allocated memory is still 402.1 MB. Free memory was 330.4 MB in the beginning and 327.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:59,046 INFO L168 Benchmark]: RCFGBuilder took 217.54 ms. Allocated memory was 402.1 MB in the beginning and 587.2 MB in the end (delta: 185.1 MB). Free memory was 327.7 MB in the beginning and 551.7 MB in the end (delta: -224.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:59,046 INFO L168 Benchmark]: TraceAbstraction took 417.76 ms. Allocated memory is still 587.2 MB. Free memory was 549.1 MB in the beginning and 512.9 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 5.3 GB. [2018-04-11 13:50:59,048 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 402.1 MB. Free memory is still 361.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 149.09 ms. Allocated memory is still 402.1 MB. Free memory was 338.3 MB in the beginning and 330.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.19 ms. Allocated memory is still 402.1 MB. Free memory was 330.4 MB in the beginning and 327.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 217.54 ms. Allocated memory was 402.1 MB in the beginning and 587.2 MB in the end (delta: 185.1 MB). Free memory was 327.7 MB in the beginning and 551.7 MB in the end (delta: -224.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 417.76 ms. Allocated memory is still 587.2 MB. Free memory was 549.1 MB in the beginning and 512.9 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 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, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s 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-0-2018-04-11_13-50-59-053.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-0-2018-04-11_13-50-59-053.csv Received shutdown request...