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_Taipan+AI_EQ_smtcomp.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 05:58:58,056 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 05:58:58,057 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 05:58:58,069 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 05:58:58,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 05:58:58,070 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 05:58:58,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 05:58:58,073 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 05:58:58,075 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 05:58:58,076 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 05:58:58,076 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 05:58:58,077 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 05:58:58,077 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 05:58:58,078 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 05:58:58,079 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 05:58:58,082 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 05:58:58,084 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 05:58:58,086 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 05:58:58,087 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 05:58:58,088 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 05:58:58,090 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 05:58:58,090 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 05:58:58,091 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 05:58:58,092 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 05:58:58,092 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 05:58:58,094 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 05:58:58,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 05:58:58,094 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 05:58:58,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 05:58:58,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 05:58:58,095 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 05:58:58,096 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf [2018-01-25 05:58:58,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 05:58:58,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 05:58:58,106 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 05:58:58,107 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 05:58:58,107 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 05:58:58,107 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 05:58:58,107 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 05:58:58,107 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 05:58:58,108 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 05:58:58,108 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 05:58:58,108 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 05:58:58,109 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 05:58:58,109 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 05:58:58,109 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 05:58:58,109 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 05:58:58,109 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 05:58:58,110 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 05:58:58,110 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 05:58:58,110 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 05:58:58,110 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 05:58:58,110 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 05:58:58,111 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 05:58:58,111 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 05:58:58,111 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 05:58:58,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 05:58:58,111 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 05:58:58,112 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 05:58:58,112 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 05:58:58,112 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 05:58:58,112 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 05:58:58,112 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 05:58:58,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 05:58:58,113 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 05:58:58,113 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 05:58:58,114 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 05:58:58,114 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 05:58:58,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 05:58:58,160 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 05:58:58,164 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 05:58:58,166 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 05:58:58,166 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 05:58:58,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c [2018-01-25 05:58:58,301 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 05:58:58,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 05:58:58,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 05:58:58,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 05:58:58,316 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 05:58:58,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bda5655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58, skipping insertion in model container [2018-01-25 05:58:58,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,335 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 05:58:58,354 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 05:58:58,470 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 05:58:58,485 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 05:58:58,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58 WrapperNode [2018-01-25 05:58:58,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 05:58:58,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 05:58:58,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 05:58:58,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 05:58:58,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (1/1) ... [2018-01-25 05:58:58,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 05:58:58,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 05:58:58,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 05:58:58,526 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 05:58:58,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (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 [2018-01-25 05:58:58,572 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 05:58:58,572 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 05:58:58,572 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-25 05:58:58,573 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 05:58:58,573 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 05:58:58,573 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 05:58:58,573 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 05:58:58,573 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 05:58:58,573 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 05:58:58,574 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-25 05:58:58,574 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 05:58:58,574 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 05:58:58,574 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 05:58:58,765 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 05:58:58,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 05:58:58 BoogieIcfgContainer [2018-01-25 05:58:58,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 05:58:58,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 05:58:58,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 05:58:58,769 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 05:58:58,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 05:58:58" (1/3) ... [2018-01-25 05:58:58,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c97e5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 05:58:58, skipping insertion in model container [2018-01-25 05:58:58,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:58:58" (2/3) ... [2018-01-25 05:58:58,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c97e5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 05:58:58, skipping insertion in model container [2018-01-25 05:58:58,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 05:58:58" (3/3) ... [2018-01-25 05:58:58,772 INFO L105 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-write.c [2018-01-25 05:58:58,779 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 05:58:58,784 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-01-25 05:58:58,820 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 05:58:58,820 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 05:58:58,820 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 05:58:58,821 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 05:58:58,821 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 05:58:58,821 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 05:58:58,821 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 05:58:58,821 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 05:58:58,822 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 05:58:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-25 05:58:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-25 05:58:58,850 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:58:58,851 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 05:58:58,852 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-25 05:58:58,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1202729229, now seen corresponding path program 1 times [2018-01-25 05:58:58,860 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:58:58,917 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:58:58,917 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:58:58,917 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:58:58,917 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:58:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:58:58,966 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:58:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 05:58:59,003 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:58:59,004 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 05:58:59,004 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:58:59,007 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-25 05:58:59,021 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-25 05:58:59,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-25 05:58:59,024 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-01-25 05:58:59,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:58:59,049 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2018-01-25 05:58:59,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-25 05:58:59,051 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-25 05:58:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:58:59,060 INFO L225 Difference]: With dead ends: 90 [2018-01-25 05:58:59,060 INFO L226 Difference]: Without dead ends: 46 [2018-01-25 05:58:59,063 INFO L525 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 [2018-01-25 05:58:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-01-25 05:58:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-01-25 05:58:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-01-25 05:58:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-01-25 05:58:59,092 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2018-01-25 05:58:59,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:58:59,093 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-01-25 05:58:59,093 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-25 05:58:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-01-25 05:58:59,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-25 05:58:59,094 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:58:59,094 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 05:58:59,094 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-25 05:58:59,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1812590093, now seen corresponding path program 1 times [2018-01-25 05:58:59,094 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:58:59,095 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:58:59,095 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:58:59,095 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:58:59,095 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:58:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:58:59,112 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:58:59,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 05:58:59,161 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:58:59,161 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 05:58:59,161 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:58:59,163 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 05:58:59,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 05:58:59,164 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 05:58:59,164 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 3 states. [2018-01-25 05:58:59,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:58:59,323 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2018-01-25 05:58:59,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 05:58:59,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-01-25 05:58:59,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:58:59,327 INFO L225 Difference]: With dead ends: 83 [2018-01-25 05:58:59,327 INFO L226 Difference]: Without dead ends: 67 [2018-01-25 05:58:59,328 INFO L525 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 [2018-01-25 05:58:59,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-01-25 05:58:59,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2018-01-25 05:58:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-01-25 05:58:59,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-01-25 05:58:59,345 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 14 [2018-01-25 05:58:59,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:58:59,345 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-01-25 05:58:59,346 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 05:58:59,346 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-01-25 05:58:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 05:58:59,346 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:58:59,347 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 05:58:59,347 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-25 05:58:59,347 INFO L82 PathProgramCache]: Analyzing trace with hash -267768884, now seen corresponding path program 1 times [2018-01-25 05:58:59,347 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:58:59,348 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:58:59,348 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:58:59,349 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:58:59,349 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:58:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-25 05:58:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-25 05:58:59,403 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-25 05:58:59,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 05:58:59 BoogieIcfgContainer [2018-01-25 05:58:59,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 05:58:59,421 INFO L168 Benchmark]: Toolchain (without parser) took 1118.79 ms. Allocated memory was 306.2 MB in the beginning and 466.6 MB in the end (delta: 160.4 MB). Free memory was 267.3 MB in the beginning and 433.3 MB in the end (delta: -166.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 05:58:59,422 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 306.2 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 05:58:59,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.40 ms. Allocated memory is still 306.2 MB. Free memory was 267.3 MB in the beginning and 257.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-25 05:58:59,423 INFO L168 Benchmark]: Boogie Preprocessor took 33.55 ms. Allocated memory is still 306.2 MB. Free memory is still 257.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 05:58:59,423 INFO L168 Benchmark]: RCFGBuilder took 239.88 ms. Allocated memory is still 306.2 MB. Free memory was 255.3 MB in the beginning and 240.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-25 05:58:59,423 INFO L168 Benchmark]: TraceAbstraction took 653.68 ms. Allocated memory was 306.2 MB in the beginning and 466.6 MB in the end (delta: 160.4 MB). Free memory was 240.7 MB in the beginning and 433.3 MB in the end (delta: -192.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 05:58:59,425 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 306.2 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 183.40 ms. Allocated memory is still 306.2 MB. Free memory was 267.3 MB in the beginning and 257.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.55 ms. Allocated memory is still 306.2 MB. Free memory is still 257.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 239.88 ms. Allocated memory is still 306.2 MB. Free memory was 255.3 MB in the beginning and 240.7 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 653.68 ms. Allocated memory was 306.2 MB in the beginning and 466.6 MB in the end (delta: 160.4 MB). Free memory was 240.7 MB in the beginning and 433.3 MB in the end (delta: -192.5 MB). There was no memory consumed. 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]; VAL [b={402:0}] [L22] i = 0 VAL [b={402:0}, i=0] [L22] COND TRUE i < 100 VAL [b={402:0}, i=0] [L23] CALL foo(i, b, i + 1) VAL [\old(n)=0, \old(size)=1, b={402:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=1, b={402:0}, b={402:0}, i=0, n=0, size=1] [L14] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, b={402:0}, b={402:0}, i=0, n=0, size=1] [L15] a[i] VAL [\old(n)=0, \old(size)=1, b={402:0}, b={402:0}, i=0, n=0, size=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 49 locations, 8 error locations. UNSAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 92 SDtfs, 17 SDslu, 34 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=2, 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: 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-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_05-58-59-432.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-25_05-58-59-432.csv Received shutdown request...