java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 16:10:34,679 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 16:10:34,681 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 16:10:34,693 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 16:10:34,693 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 16:10:34,693 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 16:10:34,694 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 16:10:34,695 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 16:10:34,697 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 16:10:34,698 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 16:10:34,698 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 16:10:34,698 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 16:10:34,699 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 16:10:34,700 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 16:10:34,701 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 16:10:34,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 16:10:34,704 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 16:10:34,705 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 16:10:34,706 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 16:10:34,707 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 16:10:34,708 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 16:10:34,708 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 16:10:34,709 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 16:10:34,709 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 16:10:34,710 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 16:10:34,711 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 16:10:34,711 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 16:10:34,712 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 16:10:34,712 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 16:10:34,712 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 16:10:34,713 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 16:10:34,713 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_NoArray.epf [2018-04-10 16:10:34,729 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 16:10:34,729 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 16:10:34,730 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 16:10:34,730 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 16:10:34,730 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 16:10:34,730 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 16:10:34,730 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 16:10:34,730 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 16:10:34,730 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 16:10:34,730 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 16:10:34,730 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 16:10:34,730 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 16:10:34,731 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 16:10:34,731 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 16:10:34,731 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 16:10:34,731 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 16:10:34,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 16:10:34,731 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 16:10:34,731 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 16:10:34,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 16:10:34,731 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 16:10:34,732 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-10 16:10:34,732 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-10 16:10:34,732 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-04-10 16:10:34,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 16:10:34,764 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 16:10:34,766 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 16:10:34,767 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 16:10:34,768 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 16:10:34,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 16:10:35,134 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG870ac7025 [2018-04-10 16:10:35,206 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 16:10:35,206 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 16:10:35,206 INFO L168 CDTParser]: Scanning ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 16:10:35,207 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 16:10:35,207 INFO L215 ultiparseSymbolTable]: [2018-04-10 16:10:35,207 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 16:10:35,207 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar ('bar') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 16:10:35,207 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 16:10:35,207 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 16:10:35,207 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 16:10:35,207 INFO L233 ultiparseSymbolTable]: [2018-04-10 16:10:35,219 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG870ac7025 [2018-04-10 16:10:35,223 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 16:10:35,225 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 16:10:35,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 16:10:35,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 16:10:35,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 16:10:35,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fcab67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35, skipping insertion in model container [2018-04-10 16:10:35,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,243 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:10:35,253 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:10:35,372 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:10:35,394 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:10:35,399 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-04-10 16:10:35,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35 WrapperNode [2018-04-10 16:10:35,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 16:10:35,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 16:10:35,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 16:10:35,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 16:10:35,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (1/1) ... [2018-04-10 16:10:35,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 16:10:35,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 16:10:35,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 16:10:35,437 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 16:10:35,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (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 16:10:35,478 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 16:10:35,478 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 16:10:35,478 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-04-10 16:10:35,478 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-04-10 16:10:35,479 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 16:10:35,479 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-04-10 16:10:35,479 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 16:10:35,479 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-04-10 16:10:35,479 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 16:10:35,479 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 16:10:35,479 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 16:10:35,479 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 16:10:35,479 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 16:10:35,480 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 16:10:35,480 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 16:10:35,700 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 16:10:35,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:10:35 BoogieIcfgContainer [2018-04-10 16:10:35,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 16:10:35,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 16:10:35,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 16:10:35,703 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 16:10:35,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 04:10:35" (1/3) ... [2018-04-10 16:10:35,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcb4678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:10:35, skipping insertion in model container [2018-04-10 16:10:35,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:35" (2/3) ... [2018-04-10 16:10:35,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcb4678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:10:35, skipping insertion in model container [2018-04-10 16:10:35,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:10:35" (3/3) ... [2018-04-10 16:10:35,706 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 16:10:35,712 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-10 16:10:35,718 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-04-10 16:10:35,739 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 16:10:35,740 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 16:10:35,740 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 16:10:35,740 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-10 16:10:35,740 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-10 16:10:35,741 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 16:10:35,741 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 16:10:35,741 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 16:10:35,741 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 16:10:35,741 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 16:10:35,753 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-04-10 16:10:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-10 16:10:35,760 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:35,761 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:35,761 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:35,764 INFO L82 PathProgramCache]: Analyzing trace with hash -2016169232, now seen corresponding path program 1 times [2018-04-10 16:10:35,765 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:35,765 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:35,793 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:35,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:35,793 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:35,824 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:10:35,844 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 16:10:35,845 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:10:35,845 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-10 16:10:35,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-10 16:10:35,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-10 16:10:35,855 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-10 16:10:35,856 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-04-10 16:10:35,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:10:35,870 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-04-10 16:10:35,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-10 16:10:35,871 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-10 16:10:35,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:10:35,877 INFO L225 Difference]: With dead ends: 68 [2018-04-10 16:10:35,877 INFO L226 Difference]: Without dead ends: 65 [2018-04-10 16:10:35,878 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-10 16:10:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-10 16:10:35,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-10 16:10:35,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-10 16:10:35,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-04-10 16:10:35,903 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-04-10 16:10:35,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:10:35,904 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-04-10 16:10:35,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-10 16:10:35,904 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-04-10 16:10:35,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-10 16:10:35,904 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:35,904 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:35,904 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:35,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1480772723, now seen corresponding path program 1 times [2018-04-10 16:10:35,905 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:35,905 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:35,906 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:35,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:35,906 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:35,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:10:35,944 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 16:10:35,944 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:10:35,945 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 16:10:35,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 16:10:35,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 16:10:35,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 16:10:35,946 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 3 states. [2018-04-10 16:10:35,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:10:35,976 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2018-04-10 16:10:35,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 16:10:35,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-04-10 16:10:35,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:10:35,978 INFO L225 Difference]: With dead ends: 71 [2018-04-10 16:10:35,978 INFO L226 Difference]: Without dead ends: 71 [2018-04-10 16:10:35,979 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 [2018-04-10 16:10:35,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-10 16:10:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-04-10 16:10:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-10 16:10:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-04-10 16:10:35,987 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-04-10 16:10:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:10:35,988 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-04-10 16:10:35,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 16:10:35,988 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-04-10 16:10:35,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 16:10:35,989 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:35,989 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:35,989 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:35,989 INFO L82 PathProgramCache]: Analyzing trace with hash -759595471, now seen corresponding path program 1 times [2018-04-10 16:10:35,989 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:35,989 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:35,990 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:35,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:35,990 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:36,006 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:10:36,067 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 16:10:36,068 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:10:36,068 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-10 16:10:36,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 16:10:36,068 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 16:10:36,068 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-10 16:10:36,068 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2018-04-10 16:10:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:10:36,163 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-04-10 16:10:36,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 16:10:36,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-10 16:10:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:10:36,164 INFO L225 Difference]: With dead ends: 85 [2018-04-10 16:10:36,165 INFO L226 Difference]: Without dead ends: 85 [2018-04-10 16:10:36,165 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-10 16:10:36,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-10 16:10:36,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2018-04-10 16:10:36,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-10 16:10:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-04-10 16:10:36,171 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 17 [2018-04-10 16:10:36,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:10:36,171 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-04-10 16:10:36,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 16:10:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-04-10 16:10:36,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 16:10:36,172 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:36,172 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:36,172 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:36,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1050708377, now seen corresponding path program 1 times [2018-04-10 16:10:36,173 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:36,173 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:36,173 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:36,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:36,174 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:36,187 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:10:36,223 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 16:10:36,223 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:10:36,223 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 16:10:36,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 16:10:36,224 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 16:10:36,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 16:10:36,224 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 5 states. [2018-04-10 16:10:36,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:10:36,313 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-04-10 16:10:36,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 16:10:36,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-04-10 16:10:36,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:10:36,316 INFO L225 Difference]: With dead ends: 77 [2018-04-10 16:10:36,316 INFO L226 Difference]: Without dead ends: 77 [2018-04-10 16:10:36,316 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-10 16:10:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-10 16:10:36,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-04-10 16:10:36,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-04-10 16:10:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2018-04-10 16:10:36,322 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 21 [2018-04-10 16:10:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:10:36,322 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2018-04-10 16:10:36,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 16:10:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2018-04-10 16:10:36,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 16:10:36,323 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:36,323 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:36,323 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:36,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1050708376, now seen corresponding path program 1 times [2018-04-10 16:10:36,324 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:36,324 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:36,324 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:36,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:36,325 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:10:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:10:36,367 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 16:10:36,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 04:10:36 BoogieIcfgContainer [2018-04-10 16:10:36,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 16:10:36,385 INFO L168 Benchmark]: Toolchain (without parser) took 1160.95 ms. Allocated memory was 400.6 MB in the beginning and 608.2 MB in the end (delta: 207.6 MB). Free memory was 338.6 MB in the beginning and 495.3 MB in the end (delta: -156.7 MB). Peak memory consumption was 50.9 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:36,386 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 400.6 MB. Free memory is still 358.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:10:36,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.95 ms. Allocated memory is still 400.6 MB. Free memory was 338.6 MB in the beginning and 328.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:36,386 INFO L168 Benchmark]: Boogie Preprocessor took 28.66 ms. Allocated memory is still 400.6 MB. Free memory is still 328.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:10:36,387 INFO L168 Benchmark]: RCFGBuilder took 264.38 ms. Allocated memory was 400.6 MB in the beginning and 608.2 MB in the end (delta: 207.6 MB). Free memory was 328.0 MB in the beginning and 567.0 MB in the end (delta: -239.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:36,387 INFO L168 Benchmark]: TraceAbstraction took 682.89 ms. Allocated memory is still 608.2 MB. Free memory was 567.0 MB in the beginning and 495.3 MB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:36,388 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 400.6 MB. Free memory is still 358.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 181.95 ms. Allocated memory is still 400.6 MB. Free memory was 338.6 MB in the beginning and 328.0 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.66 ms. Allocated memory is still 400.6 MB. Free memory is still 328.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 264.38 ms. Allocated memory was 400.6 MB in the beginning and 608.2 MB in the end (delta: 207.6 MB). Free memory was 328.0 MB in the beginning and 567.0 MB in the end (delta: -239.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 682.89 ms. Allocated memory is still 608.2 MB. Free memory was 567.0 MB in the beginning and 495.3 MB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L32] FCALL int i, b[100]; VAL [b={402:0}] [L33] i = 0 VAL [b={402:0}, i=0] [L33] COND TRUE i < 100 VAL [b={402:0}, i=0] [L34] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={402:0}] [L21] FCALL int a[n], i; VAL [\old(n)=0, \old(size)=0, a={404:0}, b={402:0}, b={402:0}, n=0, size=0] [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={404:0}, b={402:0}, b={402:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=0, a={404:0}, b={402:0}, b={402:0}, i=0, n=0, size=0] [L25] CALL bar(a, size + 1) VAL [\old(size)=1, b={404:0}] [L12] int res = 0, i; [L12] int res = 0, i; [L13] i = 0 VAL [\old(size)=1, b={404:0}, b={404:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={404:0}, b={404:0}, i=0, res=0, size=1] [L14] FCALL b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 11 error locations. UNSAFE Result, 0.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 239 SDtfs, 94 SDslu, 306 SDs, 0 SdLazy, 125 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=3, 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, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 2045 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_16-10-36-394.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_16-10-36-394.csv Received shutdown request...