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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 11:51:03,992 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 11:51:03,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 11:51:04,009 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 11:51:04,009 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 11:51:04,010 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 11:51:04,011 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 11:51:04,013 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 11:51:04,015 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 11:51:04,016 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 11:51:04,017 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 11:51:04,017 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 11:51:04,018 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 11:51:04,019 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 11:51:04,020 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 11:51:04,023 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 11:51:04,025 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 11:51:04,027 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 11:51:04,028 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 11:51:04,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 11:51:04,032 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 11:51:04,032 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 11:51:04,032 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 11:51:04,033 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 11:51:04,034 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 11:51:04,035 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 11:51:04,035 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 11:51:04,036 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 11:51:04,037 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 11:51:04,037 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 11:51:04,038 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 11:51:04,038 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-03-23 11:51:04,047 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 11:51:04,047 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 11:51:04,047 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 11:51:04,047 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 11:51:04,048 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 11:51:04,048 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 11:51:04,048 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 11:51:04,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 11:51:04,048 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 11:51:04,048 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 11:51:04,049 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 11:51:04,049 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 11:51:04,049 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 11:51:04,049 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 11:51:04,049 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 11:51:04,049 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 11:51:04,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 11:51:04,049 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 11:51:04,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 11:51:04,050 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 11:51:04,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 11:51:04,050 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 11:51:04,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 11:51:04,050 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 11:51:04,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 11:51:04,051 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 11:51:04,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 11:51:04,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 11:51:04,051 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 11:51:04,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 11:51:04,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 11:51:04,052 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 11:51:04,052 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 11:51:04,053 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 11:51:04,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 11:51:04,096 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 11:51:04,100 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 11:51:04,101 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 11:51:04,101 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 11:51:04,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c [2018-03-23 11:51:04,387 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0d2d6de0b [2018-03-23 11:51:04,519 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 11:51:04,520 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 11:51:04,520 INFO L171 CDTParser]: Scanning ArraysOfVariableLength2_false-valid-deref-write.c [2018-03-23 11:51:04,521 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 11:51:04,521 INFO L215 ultiparseSymbolTable]: [2018-03-23 11:51:04,521 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 11:51:04,521 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_false-valid-deref-write.c [2018-03-23 11:51:04,521 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__foo ('foo') in ArraysOfVariableLength2_false-valid-deref-write.c [2018-03-23 11:51:04,521 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__bar ('bar') in ArraysOfVariableLength2_false-valid-deref-write.c [2018-03-23 11:51:04,522 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 11:51:04,522 INFO L233 ultiparseSymbolTable]: [2018-03-23 11:51:04,536 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0d2d6de0b [2018-03-23 11:51:04,541 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 11:51:04,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-23 11:51:04,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 11:51:04,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 11:51:04,550 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 11:51:04,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@648adf18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04, skipping insertion in model container [2018-03-23 11:51:04,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,568 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:51:04,580 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:51:04,708 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:51:04,732 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:51:04,737 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-03-23 11:51:04,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04 WrapperNode [2018-03-23 11:51:04,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 11:51:04,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 11:51:04,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 11:51:04,750 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 11:51:04,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (1/1) ... [2018-03-23 11:51:04,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 11:51:04,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 11:51:04,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 11:51:04,780 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 11:51:04,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (1/1) ... No working directory specified, using /storage/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 [2018-03-23 11:51:04,832 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 11:51:04,832 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 11:51:04,832 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__bar [2018-03-23 11:51:04,832 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__foo [2018-03-23 11:51:04,832 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 11:51:04,832 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__bar [2018-03-23 11:51:04,832 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-23 11:51:04,832 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_write_c__foo [2018-03-23 11:51:04,832 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-23 11:51:04,833 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-23 11:51:04,833 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 11:51:04,833 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 11:51:04,833 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 11:51:04,833 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 11:51:04,833 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-23 11:51:05,233 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 11:51:05,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:51:05 BoogieIcfgContainer [2018-03-23 11:51:05,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 11:51:05,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 11:51:05,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 11:51:05,237 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 11:51:05,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 11:51:04" (1/3) ... [2018-03-23 11:51:05,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0b9dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:51:05, skipping insertion in model container [2018-03-23 11:51:05,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:04" (2/3) ... [2018-03-23 11:51:05,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0b9dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:51:05, skipping insertion in model container [2018-03-23 11:51:05,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:51:05" (3/3) ... [2018-03-23 11:51:05,241 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-write.c [2018-03-23 11:51:05,249 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 11:51:05,255 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-03-23 11:51:05,297 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 11:51:05,297 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 11:51:05,297 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 11:51:05,298 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 11:51:05,298 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 11:51:05,298 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 11:51:05,298 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 11:51:05,298 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 11:51:05,298 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 11:51:05,299 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 11:51:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-03-23 11:51:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-03-23 11:51:05,318 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:05,319 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:05,319 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]=== [2018-03-23 11:51:05,323 INFO L82 PathProgramCache]: Analyzing trace with hash 598866422, now seen corresponding path program 1 times [2018-03-23 11:51:05,324 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:05,324 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:05,365 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:05,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:05,366 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:05,409 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:05,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:51:05,437 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:05,437 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-03-23 11:51:05,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-23 11:51:05,448 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-23 11:51:05,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-23 11:51:05,451 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2018-03-23 11:51:05,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:05,482 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2018-03-23 11:51:05,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-23 11:51:05,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-03-23 11:51:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:05,493 INFO L225 Difference]: With dead ends: 169 [2018-03-23 11:51:05,493 INFO L226 Difference]: Without dead ends: 86 [2018-03-23 11:51:05,496 INFO L568 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 [2018-03-23 11:51:05,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-03-23 11:51:05,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-03-23 11:51:05,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-03-23 11:51:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-03-23 11:51:05,532 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 14 [2018-03-23 11:51:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:05,532 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-03-23 11:51:05,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-23 11:51:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-03-23 11:51:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-03-23 11:51:05,534 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:05,534 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:05,534 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]=== [2018-03-23 11:51:05,534 INFO L82 PathProgramCache]: Analyzing trace with hash 883394078, now seen corresponding path program 1 times [2018-03-23 11:51:05,535 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:05,535 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:05,536 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:05,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:05,536 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:05,551 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:51:05,593 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:05,593 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:51:05,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-23 11:51:05,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-23 11:51:05,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:51:05,596 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 3 states. [2018-03-23 11:51:05,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:05,666 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2018-03-23 11:51:05,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-23 11:51:05,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-03-23 11:51:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:05,670 INFO L225 Difference]: With dead ends: 110 [2018-03-23 11:51:05,671 INFO L226 Difference]: Without dead ends: 93 [2018-03-23 11:51:05,672 INFO L568 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 [2018-03-23 11:51:05,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-03-23 11:51:05,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2018-03-23 11:51:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-03-23 11:51:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-03-23 11:51:05,687 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 15 [2018-03-23 11:51:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:05,688 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-03-23 11:51:05,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-23 11:51:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-03-23 11:51:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-23 11:51:05,689 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:05,689 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:05,689 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]=== [2018-03-23 11:51:05,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1944482040, now seen corresponding path program 1 times [2018-03-23 11:51:05,690 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:05,690 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:05,691 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:05,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:05,691 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:05,718 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:05,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:51:05,826 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:05,826 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-03-23 11:51:05,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-23 11:51:05,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-23 11:51:05,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:51:05,827 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 5 states. [2018-03-23 11:51:05,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:05,909 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2018-03-23 11:51:05,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-23 11:51:05,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-03-23 11:51:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:05,911 INFO L225 Difference]: With dead ends: 85 [2018-03-23 11:51:05,911 INFO L226 Difference]: Without dead ends: 83 [2018-03-23 11:51:05,912 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-23 11:51:05,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-03-23 11:51:05,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-03-23 11:51:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-03-23 11:51:05,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2018-03-23 11:51:05,921 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 21 [2018-03-23 11:51:05,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:05,921 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2018-03-23 11:51:05,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-23 11:51:05,922 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2018-03-23 11:51:05,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-23 11:51:05,922 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:05,923 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:05,923 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]=== [2018-03-23 11:51:05,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1944482041, now seen corresponding path program 1 times [2018-03-23 11:51:05,923 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:05,923 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:05,924 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:05,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:05,924 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:05,940 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:51:06,093 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:06,093 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-03-23 11:51:06,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-23 11:51:06,094 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-23 11:51:06,094 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-03-23 11:51:06,094 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand 7 states. [2018-03-23 11:51:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:06,338 INFO L93 Difference]: Finished difference Result 137 states and 147 transitions. [2018-03-23 11:51:06,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-23 11:51:06,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-03-23 11:51:06,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:06,342 INFO L225 Difference]: With dead ends: 137 [2018-03-23 11:51:06,342 INFO L226 Difference]: Without dead ends: 136 [2018-03-23 11:51:06,343 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-03-23 11:51:06,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-03-23 11:51:06,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 114. [2018-03-23 11:51:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-03-23 11:51:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 125 transitions. [2018-03-23 11:51:06,358 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 125 transitions. Word has length 21 [2018-03-23 11:51:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:06,359 INFO L459 AbstractCegarLoop]: Abstraction has 114 states and 125 transitions. [2018-03-23 11:51:06,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-23 11:51:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 125 transitions. [2018-03-23 11:51:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-03-23 11:51:06,360 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:06,360 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:06,360 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]=== [2018-03-23 11:51:06,360 INFO L82 PathProgramCache]: Analyzing trace with hash 149401087, now seen corresponding path program 1 times [2018-03-23 11:51:06,361 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:06,361 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:06,362 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:06,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:06,362 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:06,376 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:51:06,406 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:06,406 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-03-23 11:51:06,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-23 11:51:06,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-23 11:51:06,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:51:06,407 INFO L87 Difference]: Start difference. First operand 114 states and 125 transitions. Second operand 3 states. [2018-03-23 11:51:06,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:06,480 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2018-03-23 11:51:06,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-23 11:51:06,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-03-23 11:51:06,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:06,482 INFO L225 Difference]: With dead ends: 114 [2018-03-23 11:51:06,483 INFO L226 Difference]: Without dead ends: 113 [2018-03-23 11:51:06,483 INFO L568 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 [2018-03-23 11:51:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-03-23 11:51:06,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-03-23 11:51:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-03-23 11:51:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 123 transitions. [2018-03-23 11:51:06,497 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 123 transitions. Word has length 22 [2018-03-23 11:51:06,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:06,497 INFO L459 AbstractCegarLoop]: Abstraction has 113 states and 123 transitions. [2018-03-23 11:51:06,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-23 11:51:06,498 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 123 transitions. [2018-03-23 11:51:06,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-03-23 11:51:06,498 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:06,498 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:06,499 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__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]=== [2018-03-23 11:51:06,499 INFO L82 PathProgramCache]: Analyzing trace with hash 149401088, now seen corresponding path program 1 times [2018-03-23 11:51:06,499 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:06,499 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:06,500 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:06,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:06,500 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:51:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:51:06,562 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-03-23 11:51:06,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 11:51:06 BoogieIcfgContainer [2018-03-23 11:51:06,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 11:51:06,591 INFO L168 Benchmark]: Toolchain (without parser) took 2049.71 ms. Allocated memory was 293.6 MB in the beginning and 449.8 MB in the end (delta: 156.2 MB). Free memory was 238.8 MB in the beginning and 293.5 MB in the end (delta: -54.7 MB). Peak memory consumption was 101.5 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:06,592 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 293.6 MB. Free memory is still 257.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 11:51:06,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.60 ms. Allocated memory is still 293.6 MB. Free memory was 238.8 MB in the beginning and 228.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:06,593 INFO L168 Benchmark]: Boogie Preprocessor took 29.07 ms. Allocated memory is still 293.6 MB. Free memory was 228.7 MB in the beginning and 226.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:06,593 INFO L168 Benchmark]: RCFGBuilder took 454.02 ms. Allocated memory was 293.6 MB in the beginning and 449.8 MB in the end (delta: 156.2 MB). Free memory was 226.7 MB in the beginning and 411.5 MB in the end (delta: -184.8 MB). Peak memory consumption was 25.4 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:06,594 INFO L168 Benchmark]: TraceAbstraction took 1355.97 ms. Allocated memory is still 449.8 MB. Free memory was 411.5 MB in the beginning and 293.5 MB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:06,595 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 293.6 MB. Free memory is still 257.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 205.60 ms. Allocated memory is still 293.6 MB. Free memory was 238.8 MB in the beginning and 228.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.07 ms. Allocated memory is still 293.6 MB. Free memory was 228.7 MB in the beginning and 226.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 454.02 ms. Allocated memory was 293.6 MB in the beginning and 449.8 MB in the end (delta: 156.2 MB). Free memory was 226.7 MB in the beginning and 411.5 MB in the end (delta: -184.8 MB). Peak memory consumption was 25.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1355.97 ms. Allocated memory is still 449.8 MB. Free memory was 411.5 MB in the beginning and 293.5 MB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 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={403:0}] [L33] i = 0 VAL [b={403:0}, i=0] [L33] COND TRUE i < 100 VAL [b={403:0}, i=0] [L34] CALL foo(i, b, i + 1) VAL [\old(n)=0, \old(size)=1, b={403:0}] [L21] FCALL int a[n], i; VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, n=0, size=1] [L21] int a[n], i; VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, n=0, size=1] [L22] i = 0 VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, i=0, n=0, size=1] [L22] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, i=0, n=0, size=1] [L23] EXPR, FCALL b[i] VAL [\old(n)=0, \old(size)=1, a={404:0}, b={403:0}, b={403:0}, b[i]=402, i=0, n=0, size=1] [L23] FCALL a[i] = b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 11 error locations. UNSAFE Result, 1.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 401 SDtfs, 192 SDslu, 512 SDs, 0 SdLazy, 216 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=4, 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, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 6266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-23_11-51-06-605.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_11-51-06-605.csv Received shutdown request...