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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 18:28:01,562 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 18:28:01,563 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 18:28:01,579 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 18:28:01,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 18:28:01,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 18:28:01,582 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 18:28:01,584 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 18:28:01,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 18:28:01,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 18:28:01,587 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 18:28:01,587 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 18:28:01,588 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 18:28:01,589 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 18:28:01,591 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 18:28:01,592 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 18:28:01,594 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 18:28:01,596 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 18:28:01,597 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 18:28:01,598 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 18:28:01,603 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 18:28:01,603 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 18:28:01,603 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 18:28:01,604 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 18:28:01,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 18:28:01,606 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 18:28:01,606 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 18:28:01,607 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 18:28:01,607 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 18:28:01,608 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 18:28:01,608 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 18:28:01,608 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-04-11 18:28:01,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 18:28:01,652 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 18:28:01,653 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 18:28:01,653 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 18:28:01,653 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 18:28:01,653 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 18:28:01,653 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 18:28:01,653 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 18:28:01,654 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 18:28:01,654 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 18:28:01,654 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 18:28:01,654 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 18:28:01,654 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 18:28:01,654 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 18:28:01,655 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 18:28:01,655 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 18:28:01,655 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 18:28:01,655 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 18:28:01,655 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 18:28:01,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 18:28:01,656 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 18:28:01,656 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-04-11 18:28:01,656 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-04-11 18:28:01,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 18:28:01,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 18:28:01,714 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 18:28:01,720 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 18:28:01,721 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 18:28:01,722 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 18:28:01,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 18:28:02,059 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG250ffca45 [2018-04-11 18:28:02,147 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 18:28:02,147 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 18:28:02,147 INFO L168 CDTParser]: Scanning ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 18:28:02,148 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 18:28:02,148 INFO L215 ultiparseSymbolTable]: [2018-04-11 18:28:02,148 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 18:28:02,148 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 18:28:02,148 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 18:28:02,148 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 18:28:02,148 INFO L233 ultiparseSymbolTable]: [2018-04-11 18:28:02,164 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG250ffca45 [2018-04-11 18:28:02,167 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 18:28:02,169 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 18:28:02,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 18:28:02,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 18:28:02,174 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 18:28:02,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a2c47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02, skipping insertion in model container [2018-04-11 18:28:02,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,190 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 18:28:02,202 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 18:28:02,323 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 18:28:02,345 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 18:28:02,349 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-11 18:28:02,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02 WrapperNode [2018-04-11 18:28:02,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 18:28:02,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 18:28:02,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 18:28:02,358 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 18:28:02,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (1/1) ... [2018-04-11 18:28:02,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 18:28:02,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 18:28:02,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 18:28:02,389 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 18:28:02,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 18:28:02,445 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 18:28:02,445 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 18:28:02,445 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-11 18:28:02,446 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 18:28:02,446 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-11 18:28:02,446 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 18:28:02,446 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 18:28:02,446 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 18:28:02,446 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 18:28:02,446 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 18:28:02,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 18:28:02,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 18:28:02,447 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 18:28:02,685 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 18:28:02,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 06:28:02 BoogieIcfgContainer [2018-04-11 18:28:02,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 18:28:02,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 18:28:02,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 18:28:02,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 18:28:02,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 06:28:02" (1/3) ... [2018-04-11 18:28:02,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce2ef1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 06:28:02, skipping insertion in model container [2018-04-11 18:28:02,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 06:28:02" (2/3) ... [2018-04-11 18:28:02,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce2ef1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 06:28:02, skipping insertion in model container [2018-04-11 18:28:02,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 06:28:02" (3/3) ... [2018-04-11 18:28:02,691 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-read.c [2018-04-11 18:28:02,698 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-11 18:28:02,702 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-04-11 18:28:02,730 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 18:28:02,730 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 18:28:02,731 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 18:28:02,731 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-04-11 18:28:02,731 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-11 18:28:02,731 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 18:28:02,731 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 18:28:02,731 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 18:28:02,731 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 18:28:02,732 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 18:28:02,742 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-04-11 18:28:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 18:28:02,751 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 18:28:02,752 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 18:28:02,752 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr2RequiresViolation]=== [2018-04-11 18:28:02,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1842966804, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 18:28:02,764 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 18:28:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 18:28:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:02,832 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 18:28:02,832 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 18:28:02,833 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 18:28:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:02,833 INFO L182 omatonBuilderFactory]: Interpolants [51#true, 52#false, 56#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-04-11 18:28:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 18:28:02,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 18:28:02,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 18:28:02,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 18:28:02,843 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2018-04-11 18:28:02,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 18:28:02,918 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2018-04-11 18:28:02,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 18:28:02,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-04-11 18:28:02,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 18:28:02,925 INFO L225 Difference]: With dead ends: 48 [2018-04-11 18:28:02,925 INFO L226 Difference]: Without dead ends: 45 [2018-04-11 18:28:02,926 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 18:28:02,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-04-11 18:28:02,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-04-11 18:28:02,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-04-11 18:28:02,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2018-04-11 18:28:02,949 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 13 [2018-04-11 18:28:02,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 18:28:02,949 INFO L459 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2018-04-11 18:28:02,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 18:28:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2018-04-11 18:28:02,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-11 18:28:02,950 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 18:28:02,950 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 18:28:02,950 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__fooErr2RequiresViolation]=== [2018-04-11 18:28:02,951 INFO L82 PathProgramCache]: Analyzing trace with hash 2008787937, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 18:28:02,953 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 18:28:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 18:28:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 18:28:03,001 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 18:28:03,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 06:28:03 BoogieIcfgContainer [2018-04-11 18:28:03,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 18:28:03,023 INFO L168 Benchmark]: Toolchain (without parser) took 855.04 ms. Allocated memory was 400.0 MB in the beginning and 608.7 MB in the end (delta: 208.7 MB). Free memory was 337.1 MB in the beginning and 532.2 MB in the end (delta: -195.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:03,024 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 400.0 MB. Free memory is still 357.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 18:28:03,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.88 ms. Allocated memory is still 400.0 MB. Free memory was 337.1 MB in the beginning and 328.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:03,025 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 400.0 MB. Free memory was 328.7 MB in the beginning and 326.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:03,026 INFO L168 Benchmark]: RCFGBuilder took 296.73 ms. Allocated memory was 400.0 MB in the beginning and 608.7 MB in the end (delta: 208.7 MB). Free memory was 326.0 MB in the beginning and 570.3 MB in the end (delta: -244.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:03,027 INFO L168 Benchmark]: TraceAbstraction took 336.60 ms. Allocated memory is still 608.7 MB. Free memory was 570.3 MB in the beginning and 532.2 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 5.3 GB. [2018-04-11 18:28:03,029 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 400.0 MB. Free memory is still 357.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 187.88 ms. Allocated memory is still 400.0 MB. Free memory was 337.1 MB in the beginning and 328.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 400.0 MB. Free memory was 328.7 MB in the beginning and 326.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 296.73 ms. Allocated memory was 400.0 MB in the beginning and 608.7 MB in the end (delta: 208.7 MB). Free memory was 326.0 MB in the beginning and 570.3 MB in the end (delta: -244.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 336.60 ms. Allocated memory is still 608.7 MB. Free memory was 570.3 MB in the beginning and 532.2 MB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; [L21] FCALL int i, b[100]; VAL [b={5:0}] [L22] i = 0 VAL [b={5:0}, i=0] [L22] COND TRUE i < 100 VAL [b={5:0}, i=0] [L23] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={5:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={5:0}, b={5:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={5:0}, b={5:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={5:0}, b={5:0}, i=0, n=0, size=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 48 locations, 8 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 34 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_18-28-03-037.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_18-28-03-037.csv Received shutdown request...