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-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-10 16:10:37,800 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 16:10:37,802 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 16:10:37,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 16:10:37,814 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 16:10:37,815 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 16:10:37,816 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 16:10:37,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 16:10:37,819 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 16:10:37,819 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 16:10:37,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 16:10:37,820 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 16:10:37,821 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 16:10:37,822 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 16:10:37,822 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 16:10:37,824 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 16:10:37,825 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 16:10:37,827 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 16:10:37,827 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 16:10:37,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 16:10:37,830 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 16:10:37,830 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 16:10:37,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 16:10:37,831 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 16:10:37,832 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 16:10:37,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 16:10:37,833 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 16:10:37,833 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 16:10:37,834 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 16:10:37,834 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 16:10:37,834 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 16:10:37,835 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 16:10:37,851 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 16:10:37,852 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 16:10:37,853 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-10 16:10:37,853 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-10 16:10:37,853 INFO L133 SettingsManager]: * Use SBE=true [2018-04-10 16:10:37,853 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 16:10:37,853 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 16:10:37,853 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 16:10:37,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 16:10:37,854 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 16:10:37,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 16:10:37,854 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 16:10:37,854 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-10 16:10:37,854 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 16:10:37,854 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 16:10:37,854 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 16:10:37,855 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-10 16:10:37,855 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-10 16:10:37,855 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 16:10:37,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 16:10:37,855 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 16:10:37,855 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-10 16:10:37,855 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-10 16:10:37,855 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-04-10 16:10:37,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 16:10:37,892 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 16:10:37,895 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 16:10:37,897 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 16:10:37,897 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 16:10:37,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c [2018-04-10 16:10:38,183 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa59b6d1e6 [2018-04-10 16:10:38,256 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 16:10:38,256 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 16:10:38,256 INFO L168 CDTParser]: Scanning ArraysOfVariableLength2_false-valid-deref-write.c [2018-04-10 16:10:38,257 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 16:10:38,257 INFO L215 ultiparseSymbolTable]: [2018-04-10 16:10:38,257 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 16:10:38,258 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_false-valid-deref-write.c [2018-04-10 16:10:38,258 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__foo ('foo') in ArraysOfVariableLength2_false-valid-deref-write.c [2018-04-10 16:10:38,258 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__bar ('bar') in ArraysOfVariableLength2_false-valid-deref-write.c [2018-04-10 16:10:38,258 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 16:10:38,258 INFO L233 ultiparseSymbolTable]: [2018-04-10 16:10:38,270 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa59b6d1e6 [2018-04-10 16:10:38,274 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 16:10:38,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-10 16:10:38,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 16:10:38,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 16:10:38,281 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 16:10:38,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57769c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38, skipping insertion in model container [2018-04-10 16:10:38,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,300 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:10:38,310 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 16:10:38,428 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:10:38,450 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 16:10:38,455 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-04-10 16:10:38,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38 WrapperNode [2018-04-10 16:10:38,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 16:10:38,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 16:10:38,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 16:10:38,464 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 16:10:38,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (1/1) ... [2018-04-10 16:10:38,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 16:10:38,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 16:10:38,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 16:10:38,495 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 16:10:38,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (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 16:10:38,529 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 16:10:38,530 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 16:10:38,530 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__bar [2018-04-10 16:10:38,530 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__foo [2018-04-10 16:10:38,530 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 16:10:38,530 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__bar [2018-04-10 16:10:38,530 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 16:10:38,530 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__foo [2018-04-10 16:10:38,530 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 16:10:38,530 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 16:10:38,530 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 16:10:38,530 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 16:10:38,530 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 16:10:38,531 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 16:10:38,531 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 16:10:38,747 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 16:10:38,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:10:38 BoogieIcfgContainer [2018-04-10 16:10:38,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 16:10:38,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 16:10:38,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 16:10:38,750 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 16:10:38,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 04:10:38" (1/3) ... [2018-04-10 16:10:38,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ed4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:10:38, skipping insertion in model container [2018-04-10 16:10:38,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 04:10:38" (2/3) ... [2018-04-10 16:10:38,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ed4eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 04:10:38, skipping insertion in model container [2018-04-10 16:10:38,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 04:10:38" (3/3) ... [2018-04-10 16:10:38,754 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-write.c [2018-04-10 16:10:38,760 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-10 16:10:38,765 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-04-10 16:10:38,789 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 16:10:38,789 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 16:10:38,790 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-10 16:10:38,790 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-10 16:10:38,790 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-10 16:10:38,790 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 16:10:38,790 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 16:10:38,790 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 16:10:38,790 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 16:10:38,791 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 16:10:38,803 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-04-10 16:10:38,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-10 16:10:38,811 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:38,811 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:38,812 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:38,816 INFO L82 PathProgramCache]: Analyzing trace with hash -2016169232, now seen corresponding path program 1 times [2018-04-10 16:10:38,817 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:38,817 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:38,845 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:38,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:38,846 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:38,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:10:38,888 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 16:10:38,890 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:10:38,891 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-10 16:10:38,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-10 16:10:38,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-10 16:10:38,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-10 16:10:38,907 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-04-10 16:10:38,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:10:38,924 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2018-04-10 16:10:38,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-10 16:10:38,925 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-10 16:10:38,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:10:38,933 INFO L225 Difference]: With dead ends: 68 [2018-04-10 16:10:38,933 INFO L226 Difference]: Without dead ends: 65 [2018-04-10 16:10:38,934 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 16:10:38,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-10 16:10:38,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-10 16:10:38,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-10 16:10:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2018-04-10 16:10:38,957 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 13 [2018-04-10 16:10:38,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:10:38,958 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2018-04-10 16:10:38,958 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-10 16:10:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2018-04-10 16:10:38,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-10 16:10:38,958 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:38,958 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:38,958 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:38,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1480772723, now seen corresponding path program 1 times [2018-04-10 16:10:38,959 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:38,959 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:38,959 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:38,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:38,959 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:38,971 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:10:39,011 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 16:10:39,012 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:10:39,012 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-10 16:10:39,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 16:10:39,014 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 16:10:39,014 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 16:10:39,014 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand 3 states. [2018-04-10 16:10:39,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:10:39,056 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2018-04-10 16:10:39,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 16:10:39,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-04-10 16:10:39,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:10:39,059 INFO L225 Difference]: With dead ends: 71 [2018-04-10 16:10:39,059 INFO L226 Difference]: Without dead ends: 71 [2018-04-10 16:10:39,059 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 16:10:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-10 16:10:39,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 64. [2018-04-10 16:10:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-10 16:10:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2018-04-10 16:10:39,068 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2018-04-10 16:10:39,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:10:39,068 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2018-04-10 16:10:39,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 16:10:39,068 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2018-04-10 16:10:39,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-10 16:10:39,069 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:39,069 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 16:10:39,069 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:39,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1380848046, now seen corresponding path program 1 times [2018-04-10 16:10:39,069 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:39,069 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:39,070 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:39,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:39,070 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:39,091 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:10:39,103 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-10 16:10:39,103 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-10 16:10:39,104 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-10 16:10:39,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:39,131 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 16:10:39,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-10 16:10:39,162 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 16:10:39,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-10 16:10:39,170 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 16:10:39,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 16:10:39,176 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-10 16:10:39,231 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 16:10:39,232 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 16:10:39,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-04-10 16:10:39,233 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 16:10:39,245 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 16:10:39,246 INFO L700 Elim1Store]: detected not equals via solver [2018-04-10 16:10:39,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-10 16:10:39,247 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-10 16:10:39,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-10 16:10:39,253 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-04-10 16:10:39,284 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 16:10:39,284 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:10:39,284 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-10 16:10:39,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-10 16:10:39,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-10 16:10:39,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-10 16:10:39,285 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 8 states. [2018-04-10 16:10:39,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:10:39,543 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2018-04-10 16:10:39,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-10 16:10:39,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-04-10 16:10:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:10:39,547 INFO L225 Difference]: With dead ends: 103 [2018-04-10 16:10:39,547 INFO L226 Difference]: Without dead ends: 103 [2018-04-10 16:10:39,547 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-04-10 16:10:39,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-04-10 16:10:39,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 86. [2018-04-10 16:10:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-10 16:10:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 97 transitions. [2018-04-10 16:10:39,555 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 97 transitions. Word has length 17 [2018-04-10 16:10:39,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:10:39,556 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 97 transitions. [2018-04-10 16:10:39,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-10 16:10:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 97 transitions. [2018-04-10 16:10:39,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-10 16:10:39,556 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:39,557 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:39,557 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:39,557 INFO L82 PathProgramCache]: Analyzing trace with hash 143383490, now seen corresponding path program 1 times [2018-04-10 16:10:39,557 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:39,557 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:39,558 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:39,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:39,558 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 16:10:39,569 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-10 16:10:39,586 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 16:10:39,587 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-10 16:10:39,587 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-10 16:10:39,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-10 16:10:39,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-10 16:10:39,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-10 16:10:39,588 INFO L87 Difference]: Start difference. First operand 86 states and 97 transitions. Second operand 3 states. [2018-04-10 16:10:39,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 16:10:39,612 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2018-04-10 16:10:39,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 16:10:39,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-04-10 16:10:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 16:10:39,614 INFO L225 Difference]: With dead ends: 85 [2018-04-10 16:10:39,614 INFO L226 Difference]: Without dead ends: 85 [2018-04-10 16:10:39,614 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 16:10:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-10 16:10:39,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-10 16:10:39,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-10 16:10:39,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2018-04-10 16:10:39,619 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 18 [2018-04-10 16:10:39,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 16:10:39,619 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2018-04-10 16:10:39,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-10 16:10:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2018-04-10 16:10:39,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-10 16:10:39,620 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 16:10:39,620 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 16:10:39,620 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__barErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-10 16:10:39,620 INFO L82 PathProgramCache]: Analyzing trace with hash 143383491, now seen corresponding path program 1 times [2018-04-10 16:10:39,621 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-10 16:10:39,621 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-10 16:10:39,622 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:39,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-10 16:10:39,622 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-10 16:10:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:10:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-10 16:10:39,660 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-10 16:10:39,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 04:10:39 BoogieIcfgContainer [2018-04-10 16:10:39,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 16:10:39,681 INFO L168 Benchmark]: Toolchain (without parser) took 1407.22 ms. Allocated memory was 402.1 MB in the beginning and 602.9 MB in the end (delta: 200.8 MB). Free memory was 341.3 MB in the beginning and 443.6 MB in the end (delta: -102.3 MB). Peak memory consumption was 98.5 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:39,683 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 402.1 MB. Free memory is still 361.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 16:10:39,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.66 ms. Allocated memory is still 402.1 MB. Free memory was 341.3 MB in the beginning and 330.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:39,683 INFO L168 Benchmark]: Boogie Preprocessor took 30.36 ms. Allocated memory is still 402.1 MB. Free memory was 330.8 MB in the beginning and 329.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:39,683 INFO L168 Benchmark]: RCFGBuilder took 252.94 ms. Allocated memory was 402.1 MB in the beginning and 602.9 MB in the end (delta: 200.8 MB). Free memory was 329.5 MB in the beginning and 558.8 MB in the end (delta: -229.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:39,684 INFO L168 Benchmark]: TraceAbstraction took 932.91 ms. Allocated memory is still 602.9 MB. Free memory was 558.8 MB in the beginning and 443.6 MB in the end (delta: 115.2 MB). Peak memory consumption was 115.2 MB. Max. memory is 5.3 GB. [2018-04-10 16:10:39,685 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 402.1 MB. Free memory is still 361.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 187.66 ms. Allocated memory is still 402.1 MB. Free memory was 341.3 MB in the beginning and 330.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.36 ms. Allocated memory is still 402.1 MB. Free memory was 330.8 MB in the beginning and 329.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 252.94 ms. Allocated memory was 402.1 MB in the beginning and 602.9 MB in the end (delta: 200.8 MB). Free memory was 329.5 MB in the beginning and 558.8 MB in the end (delta: -229.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 932.91 ms. Allocated memory is still 602.9 MB. Free memory was 558.8 MB in the beginning and 443.6 MB in the end (delta: 115.2 MB). Peak memory consumption was 115.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 23]: 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 + 1) VAL [\old(n)=0, \old(size)=1, b={402:0}] [L21] FCALL int a[n], i; VAL [\old(n)=0, \old(size)=1, a={403:0}, b={402:0}, b={402:0}, n=0, size=1] [L21] int a[n], i; [L22] i = 0 VAL [\old(n)=0, \old(size)=1, a={403:0}, b={402:0}, b={402:0}, i=0, n=0, size=1] [L22] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, a={403:0}, b={402:0}, b={402:0}, i=0, n=0, size=1] [L23] EXPR, FCALL b[i] VAL [\old(n)=0, \old(size)=1, a={403:0}, b={402:0}, b={402:0}, b[i]=405, i=0, n=0, size=1] [L23] FCALL a[i] = b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 11 error locations. UNSAFE Result, 0.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 245 SDtfs, 124 SDslu, 279 SDs, 0 SdLazy, 208 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred 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, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 4 QuantifiedInterpolants, 3778 SizeOfPredicates, 7 NumberOfNonLiveVariables, 73 ConjunctsInSsa, 28 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-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-10_16-10-39-691.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-10_16-10-39-691.csv Received shutdown request...