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_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 13:48:56,942 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 13:48:56,943 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 13:48:56,956 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 13:48:56,956 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 13:48:56,956 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 13:48:56,957 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 13:48:56,958 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 13:48:56,960 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 13:48:56,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 13:48:56,961 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 13:48:56,961 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 13:48:56,962 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 13:48:56,963 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 13:48:56,964 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 13:48:56,965 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 13:48:56,967 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 13:48:56,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 13:48:56,970 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 13:48:56,971 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 13:48:56,973 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 13:48:56,973 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 13:48:56,973 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 13:48:56,974 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 13:48:56,975 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 13:48:56,976 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 13:48:56,976 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 13:48:56,977 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 13:48:56,977 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 13:48:56,977 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 13:48:56,978 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 13:48:56,978 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-10 13:48:56,990 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 13:48:56,990 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 13:48:56,991 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 13:48:56,991 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 13:48:56,991 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 13:48:56,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 13:48:56,992 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 13:48:56,992 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 13:48:56,992 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 13:48:56,992 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 13:48:56,992 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 13:48:56,992 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 13:48:56,992 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 13:48:56,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 13:48:56,993 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 13:48:56,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 13:48:56,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 13:48:56,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 13:48:56,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 13:48:56,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 13:48:56,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 13:48:56,994 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-10 13:48:56,994 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-10 13:48:56,994 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-04-10 13:48:57,022 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 13:48:57,034 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 13:48:57,037 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 13:48:57,040 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 13:48:57,041 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 13:48:57,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 13:48:57,345 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG428fbca24 [2018-04-10 13:48:57,438 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 13:48:57,438 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 13:48:57,438 INFO L168 CDTParser]: Scanning ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 13:48:57,439 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 13:48:57,439 INFO L215 ultiparseSymbolTable]: [2018-04-10 13:48:57,439 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 13:48:57,439 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar ('bar') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 13:48:57,439 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 13:48:57,439 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 13:48:57,440 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 13:48:57,440 INFO L233 ultiparseSymbolTable]: [2018-04-10 13:48:57,451 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG428fbca24 [2018-04-10 13:48:57,455 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 13:48:57,455 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 13:48:57,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 13:48:57,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 13:48:57,460 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 13:48:57,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d357104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57, skipping insertion in model container [2018-04-10 13:48:57,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,474 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 13:48:57,483 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 13:48:57,587 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 13:48:57,606 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 13:48:57,612 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-04-10 13:48:57,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57 WrapperNode [2018-04-10 13:48:57,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 13:48:57,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 13:48:57,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 13:48:57,621 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 13:48:57,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (1/1) ... [2018-04-10 13:48:57,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 13:48:57,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 13:48:57,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 13:48:57,651 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 13:48:57,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (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 13:48:57,690 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 13:48:57,690 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 13:48:57,691 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-04-10 13:48:57,691 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-04-10 13:48:57,691 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 13:48:57,691 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-04-10 13:48:57,691 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 13:48:57,691 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-04-10 13:48:57,691 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 13:48:57,691 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 13:48:57,691 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 13:48:57,692 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 13:48:57,692 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 13:48:57,692 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 13:48:57,692 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 13:48:57,960 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 13:48:57,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 01:48:57 BoogieIcfgContainer [2018-04-10 13:48:57,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 13:48:57,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 13:48:57,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 13:48:57,964 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 13:48:57,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 01:48:57" (1/3) ... [2018-04-10 13:48:57,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6b13e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 01:48:57, skipping insertion in model container [2018-04-10 13:48:57,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 01:48:57" (2/3) ... [2018-04-10 13:48:57,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6b13e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 01:48:57, skipping insertion in model container [2018-04-10 13:48:57,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 01:48:57" (3/3) ... [2018-04-10 13:48:57,966 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-read.c [2018-04-10 13:48:57,974 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-10 13:48:57,979 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-04-10 13:48:58,000 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 13:48:58,001 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 13:48:58,001 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 13:48:58,001 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-10 13:48:58,001 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-10 13:48:58,001 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 13:48:58,001 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 13:48:58,002 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 13:48:58,002 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 13:48:58,002 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 13:48:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-04-10 13:48:58,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-10 13:48:58,021 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:48:58,021 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:48:58,021 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 13:48:58,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2016169232, now seen corresponding path program 1 times [2018-04-10 13:48:58,025 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:48:58,025 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:48:58,063 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:48:58,063 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:48:58,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:48:58,112 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 13:48:58,114 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:48:58,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-10 13:48:58,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-10 13:48:58,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-10 13:48:58,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-10 13:48:58,128 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-04-10 13:48:58,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:48:58,147 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-04-10 13:48:58,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-10 13:48:58,149 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-10 13:48:58,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:48:58,157 INFO L225 Difference]: With dead ends: 68 [2018-04-10 13:48:58,157 INFO L226 Difference]: Without dead ends: 65 [2018-04-10 13:48:58,158 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 13:48:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-10 13:48:58,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-10 13:48:58,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-10 13:48:58,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-04-10 13:48:58,183 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-04-10 13:48:58,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:48:58,183 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-04-10 13:48:58,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-10 13:48:58,183 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-04-10 13:48:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-10 13:48:58,184 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:48:58,184 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 13:48:58,184 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 13:48:58,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1480772723, now seen corresponding path program 1 times [2018-04-10 13:48:58,184 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:48:58,184 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:48:58,185 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:48:58,185 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:48:58,197 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:48:58,229 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 13:48:58,229 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:48:58,229 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 13:48:58,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 13:48:58,231 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 13:48:58,231 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 13:48:58,231 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 3 states. [2018-04-10 13:48:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:48:58,265 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2018-04-10 13:48:58,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 13:48:58,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-04-10 13:48:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:48:58,267 INFO L225 Difference]: With dead ends: 71 [2018-04-10 13:48:58,267 INFO L226 Difference]: Without dead ends: 71 [2018-04-10 13:48:58,268 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 13:48:58,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-10 13:48:58,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-04-10 13:48:58,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-10 13:48:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-04-10 13:48:58,275 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-04-10 13:48:58,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:48:58,275 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-04-10 13:48:58,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 13:48:58,275 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-04-10 13:48:58,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 13:48:58,276 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:48:58,276 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 13:48:58,276 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 13:48:58,276 INFO L82 PathProgramCache]: Analyzing trace with hash -759595471, now seen corresponding path program 1 times [2018-04-10 13:48:58,276 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:48:58,276 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:48:58,277 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:48:58,277 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:48:58,294 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:48:58,359 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 13:48:58,360 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:48:58,360 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-10 13:48:58,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-10 13:48:58,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-10 13:48:58,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-10 13:48:58,361 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2018-04-10 13:48:58,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:48:58,442 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-04-10 13:48:58,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 13:48:58,443 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-10 13:48:58,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:48:58,444 INFO L225 Difference]: With dead ends: 85 [2018-04-10 13:48:58,444 INFO L226 Difference]: Without dead ends: 85 [2018-04-10 13:48:58,444 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 13:48:58,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-10 13:48:58,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2018-04-10 13:48:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-10 13:48:58,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-04-10 13:48:58,449 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 17 [2018-04-10 13:48:58,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:48:58,449 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-04-10 13:48:58,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-10 13:48:58,449 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-04-10 13:48:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 13:48:58,449 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:48:58,449 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 13:48:58,450 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 13:48:58,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1050708377, now seen corresponding path program 1 times [2018-04-10 13:48:58,450 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:48:58,450 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:48:58,451 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:48:58,451 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 13:48:58,460 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 13:48:58,491 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 13:48:58,491 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 13:48:58,491 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-10 13:48:58,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-10 13:48:58,491 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-10 13:48:58,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-10 13:48:58,494 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 5 states. [2018-04-10 13:48:58,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 13:48:58,550 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2018-04-10 13:48:58,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-10 13:48:58,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-04-10 13:48:58,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 13:48:58,553 INFO L225 Difference]: With dead ends: 77 [2018-04-10 13:48:58,553 INFO L226 Difference]: Without dead ends: 77 [2018-04-10 13:48:58,553 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 13:48:58,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-10 13:48:58,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-04-10 13:48:58,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-04-10 13:48:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 83 transitions. [2018-04-10 13:48:58,559 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 83 transitions. Word has length 21 [2018-04-10 13:48:58,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 13:48:58,560 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 83 transitions. [2018-04-10 13:48:58,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-10 13:48:58,560 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 83 transitions. [2018-04-10 13:48:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-10 13:48:58,561 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 13:48:58,561 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 13:48:58,561 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 13:48:58,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1050708376, now seen corresponding path program 1 times [2018-04-10 13:48:58,561 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-10 13:48:58,561 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-10 13:48:58,562 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 13:48:58,562 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 13:48:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 13:48:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 13:48:58,607 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 13:48:58,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 01:48:58 BoogieIcfgContainer [2018-04-10 13:48:58,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 13:48:58,626 INFO L168 Benchmark]: Toolchain (without parser) took 1170.78 ms. Allocated memory was 405.3 MB in the beginning and 613.9 MB in the end (delta: 208.7 MB). Free memory was 346.4 MB in the beginning and 500.2 MB in the end (delta: -153.8 MB). Peak memory consumption was 54.9 MB. Max. memory is 5.3 GB. [2018-04-10 13:48:58,627 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 405.3 MB. Free memory is still 367.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 13:48:58,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.47 ms. Allocated memory is still 405.3 MB. Free memory was 346.4 MB in the beginning and 335.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-10 13:48:58,627 INFO L168 Benchmark]: Boogie Preprocessor took 29.87 ms. Allocated memory is still 405.3 MB. Free memory is still 335.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 13:48:58,628 INFO L168 Benchmark]: RCFGBuilder took 309.71 ms. Allocated memory was 405.3 MB in the beginning and 613.9 MB in the end (delta: 208.7 MB). Free memory was 335.8 MB in the beginning and 571.6 MB in the end (delta: -235.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 5.3 GB. [2018-04-10 13:48:58,628 INFO L168 Benchmark]: TraceAbstraction took 664.05 ms. Allocated memory is still 613.9 MB. Free memory was 571.6 MB in the beginning and 500.2 MB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 5.3 GB. [2018-04-10 13:48:58,630 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 405.3 MB. Free memory is still 367.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 164.47 ms. Allocated memory is still 405.3 MB. Free memory was 346.4 MB in the beginning and 335.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.87 ms. Allocated memory is still 405.3 MB. Free memory is still 335.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 309.71 ms. Allocated memory was 405.3 MB in the beginning and 613.9 MB in the end (delta: 208.7 MB). Free memory was 335.8 MB in the beginning and 571.6 MB in the end (delta: -235.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 664.05 ms. Allocated memory is still 613.9 MB. Free memory was 571.6 MB in the beginning and 500.2 MB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 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_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_13-48-58-636.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_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_13-48-58-636.csv Received shutdown request...