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_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-35b68b2 [2018-04-06 21:09:47,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-06 21:09:47,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-06 21:09:47,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-06 21:09:47,046 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-06 21:09:47,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-06 21:09:47,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-06 21:09:47,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-06 21:09:47,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-06 21:09:47,052 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-06 21:09:47,053 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-06 21:09:47,053 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-06 21:09:47,054 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-06 21:09:47,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-06 21:09:47,057 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-06 21:09:47,059 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-06 21:09:47,061 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-06 21:09:47,063 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-06 21:09:47,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-06 21:09:47,065 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-06 21:09:47,068 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-06 21:09:47,074 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-06 21:09:47,074 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-06 21:09:47,075 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-06 21:09:47,097 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-06 21:09:47,098 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-06 21:09:47,098 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-06 21:09:47,098 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-06 21:09:47,099 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-06 21:09:47,099 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-06 21:09:47,099 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-06 21:09:47,099 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-06 21:09:47,099 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-06 21:09:47,100 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-06 21:09:47,100 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-06 21:09:47,100 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-06 21:09:47,100 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-06 21:09:47,100 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-06 21:09:47,101 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-06 21:09:47,101 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-06 21:09:47,101 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-06 21:09:47,101 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-06 21:09:47,101 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-06 21:09:47,101 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-06 21:09:47,101 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-06 21:09:47,102 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-06 21:09:47,102 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-06 21:09:47,102 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-06 21:09:47,102 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-06 21:09:47,102 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-06 21:09:47,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-06 21:09:47,103 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-06 21:09:47,103 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-06 21:09:47,103 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-06 21:09:47,103 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-06 21:09:47,103 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-06 21:09:47,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 21:09:47,104 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-06 21:09:47,104 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-06 21:09:47,104 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-06 21:09:47,105 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-06 21:09:47,105 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-06 21:09:47,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-06 21:09:47,146 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-06 21:09:47,149 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-06 21:09:47,151 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-06 21:09:47,151 INFO L276 PluginConnector]: CDTParser initialized [2018-04-06 21:09:47,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-04-06 21:09:47,435 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGeeaec0d2c [2018-04-06 21:09:47,570 INFO L287 CDTParser]: IsIndexed: true [2018-04-06 21:09:47,570 INFO L288 CDTParser]: Found 1 translation units. [2018-04-06 21:09:47,571 INFO L168 CDTParser]: Scanning ArraysOfVariableLength_false-valid-deref-read.c [2018-04-06 21:09:47,572 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-06 21:09:47,572 INFO L215 ultiparseSymbolTable]: [2018-04-06 21:09:47,572 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-06 21:09:47,572 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-06 21:09:47,572 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo ('foo') in ArraysOfVariableLength_false-valid-deref-read.c [2018-04-06 21:09:47,572 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-06 21:09:47,572 INFO L233 ultiparseSymbolTable]: [2018-04-06 21:09:47,587 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGeeaec0d2c [2018-04-06 21:09:47,592 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-06 21:09:47,593 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-06 21:09:47,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-06 21:09:47,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-06 21:09:47,601 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-06 21:09:47,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123dd80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47, skipping insertion in model container [2018-04-06 21:09:47,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,617 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 21:09:47,629 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 21:09:47,772 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 21:09:47,797 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 21:09:47,803 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-06 21:09:47,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47 WrapperNode [2018-04-06 21:09:47,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-06 21:09:47,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-06 21:09:47,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-06 21:09:47,815 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-06 21:09:47,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (1/1) ... [2018-04-06 21:09:47,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-06 21:09:47,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-06 21:09:47,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-06 21:09:47,850 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-06 21:09:47,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (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 [2018-04-06 21:09:47,911 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-06 21:09:47,911 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-06 21:09:47,912 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-06 21:09:47,912 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-06 21:09:47,912 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength_false_valid_deref_read_c__foo [2018-04-06 21:09:47,912 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-06 21:09:47,912 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-06 21:09:47,912 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-06 21:09:47,913 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-06 21:09:47,913 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-06 21:09:47,913 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-06 21:09:47,913 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-06 21:09:47,913 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-06 21:09:48,190 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-06 21:09:48,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:09:48 BoogieIcfgContainer [2018-04-06 21:09:48,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-06 21:09:48,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-06 21:09:48,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-06 21:09:48,194 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-06 21:09:48,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 09:09:47" (1/3) ... [2018-04-06 21:09:48,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630ea27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:09:48, skipping insertion in model container [2018-04-06 21:09:48,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:09:47" (2/3) ... [2018-04-06 21:09:48,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630ea27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:09:48, skipping insertion in model container [2018-04-06 21:09:48,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:09:48" (3/3) ... [2018-04-06 21:09:48,197 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-read.c [2018-04-06 21:09:48,208 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-06 21:09:48,215 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-04-06 21:09:48,258 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-06 21:09:48,259 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-06 21:09:48,259 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-06 21:09:48,259 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-06 21:09:48,259 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-06 21:09:48,259 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-06 21:09:48,259 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-06 21:09:48,259 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-06 21:09:48,259 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-06 21:09:48,260 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-06 21:09:48,273 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-04-06 21:09:48,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-06 21:09:48,278 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:09:48,278 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:09:48,278 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]=== [2018-04-06 21:09:48,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1399729439, now seen corresponding path program 1 times No working directory specified, using /storage/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 [2018-04-06 21:09:48,293 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:09:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:09:48,328 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:09:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:09:48,345 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:09:48,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:09:48,386 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:09:48,386 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-06 21:09:48,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-06 21:09:48,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-06 21:09:48,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-06 21:09:48,401 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-04-06 21:09:48,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:09:48,425 INFO L93 Difference]: Finished difference Result 113 states and 126 transitions. [2018-04-06 21:09:48,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-06 21:09:48,426 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-04-06 21:09:48,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:09:48,433 INFO L225 Difference]: With dead ends: 113 [2018-04-06 21:09:48,434 INFO L226 Difference]: Without dead ends: 58 [2018-04-06 21:09:48,438 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-06 21:09:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-06 21:09:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-04-06 21:09:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-06 21:09:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-04-06 21:09:48,474 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 14 [2018-04-06 21:09:48,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:09:48,475 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-04-06 21:09:48,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-06 21:09:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-04-06 21:09:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-04-06 21:09:48,476 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:09:48,476 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:09:48,476 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]=== [2018-04-06 21:09:48,477 INFO L82 PathProgramCache]: Analyzing trace with hash -943535541, now seen corresponding path program 1 times No working directory specified, using /storage/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 [2018-04-06 21:09:48,488 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:09:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:09:48,508 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:09:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:09:48,526 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:09:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:09:48,578 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:09:48,578 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-04-06 21:09:48,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-06 21:09:48,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-06 21:09:48,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-06 21:09:48,582 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 4 states. [2018-04-06 21:09:48,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:09:48,645 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2018-04-06 21:09:48,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-06 21:09:48,646 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-04-06 21:09:48,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:09:48,648 INFO L225 Difference]: With dead ends: 82 [2018-04-06 21:09:48,648 INFO L226 Difference]: Without dead ends: 65 [2018-04-06 21:09:48,649 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-06 21:09:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-06 21:09:48,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2018-04-06 21:09:48,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-06 21:09:48,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2018-04-06 21:09:48,658 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 15 [2018-04-06 21:09:48,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:09:48,659 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2018-04-06 21:09:48,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-06 21:09:48,659 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-04-06 21:09:48,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-06 21:09:48,659 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:09:48,660 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:09:48,660 INFO L408 AbstractCegarLoop]: === Iteration 3 === [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]=== [2018-04-06 21:09:48,660 INFO L82 PathProgramCache]: Analyzing trace with hash -617589909, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 21:09:48,668 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:09:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-06 21:09:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-06 21:09:48,749 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-06 21:09:48,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 09:09:48 BoogieIcfgContainer [2018-04-06 21:09:48,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-06 21:09:48,775 INFO L168 Benchmark]: Toolchain (without parser) took 1183.02 ms. Allocated memory was 308.8 MB in the beginning and 449.3 MB in the end (delta: 140.5 MB). Free memory was 249.9 MB in the beginning and 372.6 MB in the end (delta: -122.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 5.3 GB. [2018-04-06 21:09:48,777 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 308.8 MB. Free memory is still 270.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-06 21:09:48,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.08 ms. Allocated memory is still 308.8 MB. Free memory was 249.9 MB in the beginning and 239.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-04-06 21:09:48,778 INFO L168 Benchmark]: Boogie Preprocessor took 34.77 ms. Allocated memory is still 308.8 MB. Free memory was 239.9 MB in the beginning and 237.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-06 21:09:48,779 INFO L168 Benchmark]: RCFGBuilder took 341.81 ms. Allocated memory was 308.8 MB in the beginning and 449.3 MB in the end (delta: 140.5 MB). Free memory was 237.9 MB in the beginning and 416.0 MB in the end (delta: -178.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 5.3 GB. [2018-04-06 21:09:48,779 INFO L168 Benchmark]: TraceAbstraction took 582.51 ms. Allocated memory is still 449.3 MB. Free memory was 416.0 MB in the beginning and 372.6 MB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 5.3 GB. [2018-04-06 21:09:48,782 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 308.8 MB. Free memory is still 270.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 220.08 ms. Allocated memory is still 308.8 MB. Free memory was 249.9 MB in the beginning and 239.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.77 ms. Allocated memory is still 308.8 MB. Free memory was 239.9 MB in the beginning and 237.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 341.81 ms. Allocated memory was 308.8 MB in the beginning and 449.3 MB in the end (delta: 140.5 MB). Free memory was 237.9 MB in the beginning and 416.0 MB in the end (delta: -178.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 582.51 ms. Allocated memory is still 449.3 MB. Free memory was 416.0 MB in the beginning and 372.6 MB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 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; VAL [\old(n)=0, \old(size)=0, b={5:0}, b={5:0}, n=0, size=0] [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, 61 locations, 8 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 113 SDtfs, 46 SDslu, 34 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 842 SizeOfPredicates, 1 NumberOfNonLiveVariables, 87 ConjunctsInSsa, 3 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/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-06_21-09-48-792.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-06_21-09-48-792.csv Received shutdown request...