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-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 11:51:01,478 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 11:51:01,481 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 11:51:01,498 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 11:51:01,498 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 11:51:01,499 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 11:51:01,501 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 11:51:01,503 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 11:51:01,505 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 11:51:01,506 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 11:51:01,507 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 11:51:01,507 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 11:51:01,508 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 11:51:01,510 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 11:51:01,511 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 11:51:01,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 11:51:01,516 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 11:51:01,518 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 11:51:01,519 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 11:51:01,521 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 11:51:01,523 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 11:51:01,524 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 11:51:01,524 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 11:51:01,525 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 11:51:01,526 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 11:51:01,527 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 11:51:01,528 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 11:51:01,528 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 11:51:01,529 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 11:51:01,529 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 11:51:01,530 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 11:51:01,531 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 11:51:01,540 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 11:51:01,540 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 11:51:01,541 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 11:51:01,541 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 11:51:01,542 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 11:51:01,542 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 11:51:01,542 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 11:51:01,543 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 11:51:01,543 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 11:51:01,543 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 11:51:01,543 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 11:51:01,544 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 11:51:01,544 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 11:51:01,544 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 11:51:01,544 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 11:51:01,544 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 11:51:01,545 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 11:51:01,545 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 11:51:01,545 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 11:51:01,545 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 11:51:01,545 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 11:51:01,546 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 11:51:01,546 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 11:51:01,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 11:51:01,546 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 11:51:01,546 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 11:51:01,547 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 11:51:01,547 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 11:51:01,547 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 11:51:01,547 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 11:51:01,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 11:51:01,547 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 11:51:01,548 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 11:51:01,549 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 11:51:01,584 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 11:51:01,596 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 11:51:01,600 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 11:51:01,602 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 11:51:01,602 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 11:51:01,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-23 11:51:01,912 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG805e31b0a [2018-03-23 11:51:02,028 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 11:51:02,028 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 11:51:02,029 INFO L171 CDTParser]: Scanning ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-23 11:51:02,030 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 11:51:02,030 INFO L215 ultiparseSymbolTable]: [2018-03-23 11:51:02,030 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 11:51:02,030 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar ('bar') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-23 11:51:02,030 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-23 11:51:02,030 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-23 11:51:02,030 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 11:51:02,030 INFO L233 ultiparseSymbolTable]: [2018-03-23 11:51:02,045 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG805e31b0a [2018-03-23 11:51:02,050 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 11:51:02,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-23 11:51:02,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 11:51:02,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 11:51:02,060 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 11:51:02,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d772c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02, skipping insertion in model container [2018-03-23 11:51:02,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,085 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:51:02,098 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:51:02,243 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:51:02,273 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:51:02,278 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 10 non ball SCCs. Number of states in SCCs 10. [2018-03-23 11:51:02,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02 WrapperNode [2018-03-23 11:51:02,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 11:51:02,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 11:51:02,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 11:51:02,287 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 11:51:02,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (1/1) ... [2018-03-23 11:51:02,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 11:51:02,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 11:51:02,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 11:51:02,321 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 11:51:02,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (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 11:51:02,366 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 11:51:02,366 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 11:51:02,367 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-03-23 11:51:02,367 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-03-23 11:51:02,367 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 11:51:02,367 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__bar [2018-03-23 11:51:02,367 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-23 11:51:02,367 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__foo [2018-03-23 11:51:02,367 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-23 11:51:02,367 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-23 11:51:02,367 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 11:51:02,368 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 11:51:02,368 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 11:51:02,368 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 11:51:02,368 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-23 11:51:02,725 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 11:51:02,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:51:02 BoogieIcfgContainer [2018-03-23 11:51:02,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 11:51:02,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 11:51:02,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 11:51:02,729 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 11:51:02,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 11:51:02" (1/3) ... [2018-03-23 11:51:02,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b20e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:51:02, skipping insertion in model container [2018-03-23 11:51:02,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:51:02" (2/3) ... [2018-03-23 11:51:02,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b20e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:51:02, skipping insertion in model container [2018-03-23 11:51:02,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:51:02" (3/3) ... [2018-03-23 11:51:02,733 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-read.c [2018-03-23 11:51:02,743 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 11:51:02,751 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-03-23 11:51:02,786 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 11:51:02,786 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 11:51:02,787 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 11:51:02,787 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 11:51:02,787 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 11:51:02,787 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 11:51:02,787 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 11:51:02,787 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 11:51:02,788 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 11:51:02,788 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 11:51:02,808 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-03-23 11:51:02,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-03-23 11:51:02,814 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:02,815 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:02,815 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:51:02,819 INFO L82 PathProgramCache]: Analyzing trace with hash 598866422, now seen corresponding path program 1 times [2018-03-23 11:51:02,820 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:02,820 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:02,862 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:02,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:02,862 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:02,901 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:02,928 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 11:51:02,930 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:02,931 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-03-23 11:51:02,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-23 11:51:02,944 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-23 11:51:02,945 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-23 11:51:02,947 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2018-03-23 11:51:02,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:02,978 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2018-03-23 11:51:02,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-23 11:51:02,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-03-23 11:51:02,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:02,988 INFO L225 Difference]: With dead ends: 169 [2018-03-23 11:51:02,988 INFO L226 Difference]: Without dead ends: 86 [2018-03-23 11:51:02,991 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 11:51:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-03-23 11:51:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-03-23 11:51:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-03-23 11:51:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2018-03-23 11:51:03,024 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 14 [2018-03-23 11:51:03,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:03,025 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2018-03-23 11:51:03,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-23 11:51:03,025 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2018-03-23 11:51:03,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-03-23 11:51:03,026 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:03,026 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:03,026 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:51:03,027 INFO L82 PathProgramCache]: Analyzing trace with hash 883394078, now seen corresponding path program 1 times [2018-03-23 11:51:03,027 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:03,027 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:03,028 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:03,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:03,029 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:03,044 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:03,077 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 11:51:03,078 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:03,078 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-03-23 11:51:03,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-23 11:51:03,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-23 11:51:03,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 11:51:03,080 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand 3 states. [2018-03-23 11:51:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:03,153 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2018-03-23 11:51:03,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-23 11:51:03,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-03-23 11:51:03,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:03,157 INFO L225 Difference]: With dead ends: 110 [2018-03-23 11:51:03,157 INFO L226 Difference]: Without dead ends: 93 [2018-03-23 11:51:03,158 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 11:51:03,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-03-23 11:51:03,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2018-03-23 11:51:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-03-23 11:51:03,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-03-23 11:51:03,174 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 15 [2018-03-23 11:51:03,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:03,174 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-03-23 11:51:03,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-23 11:51:03,175 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-03-23 11:51:03,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-23 11:51:03,175 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:03,176 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 11:51:03,176 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:51:03,176 INFO L82 PathProgramCache]: Analyzing trace with hash 43082517, now seen corresponding path program 1 times [2018-03-23 11:51:03,176 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:03,176 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:03,177 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:03,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:03,178 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:03,200 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:03,311 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 11:51:03,311 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:03,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-03-23 11:51:03,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-23 11:51:03,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-23 11:51:03,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-03-23 11:51:03,312 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 6 states. [2018-03-23 11:51:03,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:03,426 INFO L93 Difference]: Finished difference Result 188 states and 200 transitions. [2018-03-23 11:51:03,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-23 11:51:03,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-03-23 11:51:03,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:03,428 INFO L225 Difference]: With dead ends: 188 [2018-03-23 11:51:03,428 INFO L226 Difference]: Without dead ends: 114 [2018-03-23 11:51:03,429 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-03-23 11:51:03,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-03-23 11:51:03,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2018-03-23 11:51:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-03-23 11:51:03,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 113 transitions. [2018-03-23 11:51:03,442 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 113 transitions. Word has length 21 [2018-03-23 11:51:03,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:03,443 INFO L459 AbstractCegarLoop]: Abstraction has 107 states and 113 transitions. [2018-03-23 11:51:03,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-23 11:51:03,443 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 113 transitions. [2018-03-23 11:51:03,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-03-23 11:51:03,444 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:03,444 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, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:03,444 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:51:03,444 INFO L82 PathProgramCache]: Analyzing trace with hash 283568854, now seen corresponding path program 1 times [2018-03-23 11:51:03,444 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:03,445 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:03,445 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:03,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:03,446 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:51:03,464 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:51:03,514 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 11:51:03,514 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:51:03,515 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-03-23 11:51:03,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-23 11:51:03,515 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-23 11:51:03,515 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:51:03,516 INFO L87 Difference]: Start difference. First operand 107 states and 113 transitions. Second operand 5 states. [2018-03-23 11:51:03,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:51:03,630 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2018-03-23 11:51:03,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-23 11:51:03,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-03-23 11:51:03,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:51:03,635 INFO L225 Difference]: With dead ends: 107 [2018-03-23 11:51:03,636 INFO L226 Difference]: Without dead ends: 105 [2018-03-23 11:51:03,636 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-23 11:51:03,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-03-23 11:51:03,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-03-23 11:51:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-03-23 11:51:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2018-03-23 11:51:03,647 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 29 [2018-03-23 11:51:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:51:03,648 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2018-03-23 11:51:03,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-23 11:51:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2018-03-23 11:51:03,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-03-23 11:51:03,649 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:51:03,649 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, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:51:03,649 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__barErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr3RequiresViolation, __U_MULTI_fArraysOfVariableLength__false_valid_deref_read_c__fooErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-23 11:51:03,650 INFO L82 PathProgramCache]: Analyzing trace with hash 283568855, now seen corresponding path program 1 times [2018-03-23 11:51:03,650 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:51:03,650 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:51:03,651 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:03,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:51:03,651 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:51:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:51:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:51:03,705 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-03-23 11:51:03,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 11:51:03 BoogieIcfgContainer [2018-03-23 11:51:03,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 11:51:03,733 INFO L168 Benchmark]: Toolchain (without parser) took 1682.58 ms. Allocated memory was 309.9 MB in the beginning and 472.4 MB in the end (delta: 162.5 MB). Free memory was 254.7 MB in the beginning and 356.8 MB in the end (delta: -102.1 MB). Peak memory consumption was 60.5 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:03,734 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 309.9 MB. Free memory is still 274.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 11:51:03,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.39 ms. Allocated memory is still 309.9 MB. Free memory was 254.7 MB in the beginning and 244.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:03,734 INFO L168 Benchmark]: Boogie Preprocessor took 33.32 ms. Allocated memory is still 309.9 MB. Free memory was 244.5 MB in the beginning and 242.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:03,735 INFO L168 Benchmark]: RCFGBuilder took 405.08 ms. Allocated memory was 309.9 MB in the beginning and 472.4 MB in the end (delta: 162.5 MB). Free memory was 242.5 MB in the beginning and 434.6 MB in the end (delta: -192.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:03,735 INFO L168 Benchmark]: TraceAbstraction took 1005.72 ms. Allocated memory is still 472.4 MB. Free memory was 434.6 MB in the beginning and 356.8 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 5.3 GB. [2018-03-23 11:51:03,737 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 309.9 MB. Free memory is still 274.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 233.39 ms. Allocated memory is still 309.9 MB. Free memory was 254.7 MB in the beginning and 244.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.32 ms. Allocated memory is still 309.9 MB. Free memory was 244.5 MB in the beginning and 242.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 405.08 ms. Allocated memory was 309.9 MB in the beginning and 472.4 MB in the end (delta: 162.5 MB). Free memory was 242.5 MB in the beginning and 434.6 MB in the end (delta: -192.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1005.72 ms. Allocated memory is still 472.4 MB. Free memory was 434.6 MB in the beginning and 356.8 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L32] FCALL int i, b[100]; VAL [b={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) VAL [\old(n)=0, \old(size)=0, b={403:0}] [L21] FCALL int a[n], i; VAL [\old(n)=0, \old(size)=0, a={402:0}, b={403:0}, b={403:0}, n=0, size=0] [L21] int a[n], i; VAL [\old(n)=0, \old(size)=0, a={402:0}, b={403:0}, b={403:0}, n=0, size=0] [L22] i = 0 VAL [\old(n)=0, \old(size)=0, a={402:0}, b={403:0}, b={403:0}, i=0, n=0, size=0] [L22] COND FALSE !(i < size) VAL [\old(n)=0, \old(size)=0, a={402:0}, b={403:0}, b={403:0}, i=0, n=0, size=0] [L25] CALL bar(a, size + 1) VAL [\old(size)=1, b={402:0}] [L12] int res = 0, i; VAL [\old(size)=1, b={402:0}, b={402:0}, res=0, size=1] [L12] int res = 0, i; VAL [\old(size)=1, b={402:0}, b={402:0}, res=0, size=1] [L13] i = 0 VAL [\old(size)=1, b={402:0}, b={402:0}, i=0, res=0, size=1] [L13] COND TRUE i < size VAL [\old(size)=1, b={402:0}, b={402:0}, i=0, res=0, size=1] [L14] FCALL b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 89 locations, 11 error locations. UNSAFE Result, 0.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 323 SDtfs, 129 SDslu, 426 SDs, 0 SdLazy, 128 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred 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, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 3661 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-23_11-51-03-744.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_11-51-03-744.csv Received shutdown request...