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_RubberTaipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 13:03:27,431 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 13:03:27,433 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 13:03:27,448 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 13:03:27,448 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 13:03:27,449 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 13:03:27,451 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 13:03:27,452 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 13:03:27,454 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 13:03:27,455 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 13:03:27,455 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 13:03:27,455 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 13:03:27,456 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 13:03:27,457 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 13:03:27,458 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 13:03:27,461 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 13:03:27,463 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 13:03:27,465 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 13:03:27,466 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 13:03:27,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 13:03:27,470 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 13:03:27,475 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 13:03:27,476 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 13:03:27,476 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf [2018-01-24 13:03:27,487 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 13:03:27,487 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 13:03:27,488 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 13:03:27,488 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 13:03:27,488 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 13:03:27,488 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 13:03:27,488 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 13:03:27,489 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 13:03:27,489 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 13:03:27,489 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 13:03:27,490 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 13:03:27,490 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 13:03:27,490 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 13:03:27,490 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 13:03:27,490 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 13:03:27,491 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 13:03:27,491 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 13:03:27,491 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 13:03:27,491 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 13:03:27,491 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 13:03:27,492 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 13:03:27,492 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 13:03:27,492 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 13:03:27,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 13:03:27,492 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 13:03:27,493 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 13:03:27,493 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 13:03:27,493 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 13:03:27,493 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-01-24 13:03:27,493 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 13:03:27,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 13:03:27,494 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 13:03:27,495 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 13:03:27,495 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 13:03:27,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 13:03:27,541 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 13:03:27,545 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 13:03:27,547 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 13:03:27,547 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 13:03:27,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0158_false-valid-memtrack_true-termination.i [2018-01-24 13:03:27,699 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 13:03:27,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 13:03:27,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 13:03:27,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 13:03:27,713 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 13:03:27,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3be31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27, skipping insertion in model container [2018-01-24 13:03:27,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,734 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:03:27,773 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:03:27,885 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:03:27,898 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:03:27,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27 WrapperNode [2018-01-24 13:03:27,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 13:03:27,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 13:03:27,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 13:03:27,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 13:03:27,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (1/1) ... [2018-01-24 13:03:27,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 13:03:27,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 13:03:27,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 13:03:27,937 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 13:03:27,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (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 [2018-01-24 13:03:27,982 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 13:03:27,982 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 13:03:27,982 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 13:03:27,983 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 13:03:27,983 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 13:03:27,983 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 13:03:27,983 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 13:03:27,983 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 13:03:27,983 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 13:03:27,984 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 13:03:27,984 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 13:03:27,984 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 13:03:27,984 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 13:03:27,984 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 13:03:28,126 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 13:03:28,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:03:28 BoogieIcfgContainer [2018-01-24 13:03:28,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 13:03:28,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 13:03:28,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 13:03:28,130 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 13:03:28,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 01:03:27" (1/3) ... [2018-01-24 13:03:28,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796e019f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 01:03:28, skipping insertion in model container [2018-01-24 13:03:28,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:03:27" (2/3) ... [2018-01-24 13:03:28,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@796e019f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 01:03:28, skipping insertion in model container [2018-01-24 13:03:28,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:03:28" (3/3) ... [2018-01-24 13:03:28,135 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0158_false-valid-memtrack_true-termination.i [2018-01-24 13:03:28,144 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 13:03:28,152 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-24 13:03:28,196 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 13:03:28,197 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 13:03:28,197 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 13:03:28,197 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 13:03:28,197 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 13:03:28,197 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 13:03:28,198 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 13:03:28,198 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 13:03:28,199 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 13:03:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-01-24 13:03:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 13:03:28,226 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:03:28,227 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:03:28,227 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 13:03:28,232 INFO L82 PathProgramCache]: Analyzing trace with hash 481461009, now seen corresponding path program 1 times [2018-01-24 13:03:28,235 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:03:28,279 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:03:28,279 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:03:28,279 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:03:28,279 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:03:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:03:28,330 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:03:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:03:28,428 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:03:28,428 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 13:03:28,428 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:03:28,430 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 13:03:28,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 13:03:28,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 13:03:28,444 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-01-24 13:03:28,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:03:28,592 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-01-24 13:03:28,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 13:03:28,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-01-24 13:03:28,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:03:28,601 INFO L225 Difference]: With dead ends: 24 [2018-01-24 13:03:28,602 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 13:03:28,605 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 [2018-01-24 13:03:28,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 13:03:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 13:03:28,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 13:03:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-01-24 13:03:28,630 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 8 [2018-01-24 13:03:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:03:28,631 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-01-24 13:03:28,631 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 13:03:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-01-24 13:03:28,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 13:03:28,631 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:03:28,632 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:03:28,632 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 13:03:28,632 INFO L82 PathProgramCache]: Analyzing trace with hash 481461010, now seen corresponding path program 1 times [2018-01-24 13:03:28,632 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:03:28,633 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:03:28,633 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:03:28,633 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:03:28,633 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:03:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 13:03:28,651 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 13:03:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 13:03:28,750 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 13:03:28,750 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 13:03:28,750 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 13:03:28,752 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 13:03:28,752 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 13:03:28,753 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-24 13:03:28,753 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 4 states. [2018-01-24 13:03:28,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 13:03:28,791 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-01-24 13:03:28,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 13:03:28,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 13:03:28,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 13:03:28,793 INFO L225 Difference]: With dead ends: 18 [2018-01-24 13:03:28,793 INFO L226 Difference]: Without dead ends: 15 [2018-01-24 13:03:28,794 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-24 13:03:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-01-24 13:03:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-01-24 13:03:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-01-24 13:03:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-01-24 13:03:28,797 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 8 [2018-01-24 13:03:28,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 13:03:28,797 INFO L432 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-01-24 13:03:28,798 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 13:03:28,798 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-01-24 13:03:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 13:03:28,798 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 13:03:28,798 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 13:03:28,799 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-24 13:03:28,799 INFO L82 PathProgramCache]: Analyzing trace with hash 2142709462, now seen corresponding path program 1 times [2018-01-24 13:03:28,799 INFO L67 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-01-24 13:03:28,800 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:03:28,800 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 13:03:28,800 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 13:03:28,801 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 13:03:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 13:03:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 13:03:28,864 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 13:03:28,873 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 13:03:28,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 01:03:28 BoogieIcfgContainer [2018-01-24 13:03:28,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 13:03:28,884 INFO L168 Benchmark]: Toolchain (without parser) took 1184.79 ms. Allocated memory was 300.4 MB in the beginning and 456.7 MB in the end (delta: 156.2 MB). Free memory was 260.4 MB in the beginning and 410.9 MB in the end (delta: -150.5 MB). Peak memory consumption was 5.7 MB. Max. memory is 5.3 GB. [2018-01-24 13:03:28,885 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 300.4 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:03:28,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.36 ms. Allocated memory is still 300.4 MB. Free memory was 260.4 MB in the beginning and 249.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:03:28,886 INFO L168 Benchmark]: Boogie Preprocessor took 29.67 ms. Allocated memory is still 300.4 MB. Free memory was 249.4 MB in the beginning and 248.4 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-01-24 13:03:28,886 INFO L168 Benchmark]: RCFGBuilder took 189.94 ms. Allocated memory is still 300.4 MB. Free memory was 248.4 MB in the beginning and 234.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. [2018-01-24 13:03:28,887 INFO L168 Benchmark]: TraceAbstraction took 755.75 ms. Allocated memory was 300.4 MB in the beginning and 456.7 MB in the end (delta: 156.2 MB). Free memory was 234.5 MB in the beginning and 410.9 MB in the end (delta: -176.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:03:28,888 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 300.4 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 201.36 ms. Allocated memory is still 300.4 MB. Free memory was 260.4 MB in the beginning and 249.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.67 ms. Allocated memory is still 300.4 MB. Free memory was 249.4 MB in the beginning and 248.4 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 189.94 ms. Allocated memory is still 300.4 MB. Free memory was 248.4 MB in the beginning and 234.5 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 755.75 ms. Allocated memory was 300.4 MB in the beginning and 456.7 MB in the end (delta: 156.2 MB). Free memory was 234.5 MB in the beginning and 410.9 MB in the end (delta: -176.4 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 619]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 619. Possible FailurePath: [L621-L628] FCALL union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; VAL [data={42:0}] [L629] EXPR, FCALL malloc(37U) VAL [data={42:0}, malloc(37U)={38:0}] [L629] FCALL data.p0 = malloc(37U) VAL [data={42:0}, malloc(37U)={38:0}] [L630] FCALL data.str.p2 = &data VAL [data={42:0}, malloc(37U)={38:0}] [L631] FCALL data.str.c[1] = sizeof data.str.p1 VAL [data={42:0}, malloc(37U)={38:0}] [L632] return 0; VAL [\result=0, data={42:0}, malloc(37U)={38:0}] [L632] return 0; VAL [\result=0, malloc(37U)={38:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 7 error locations. UNSAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 11 SDslu, 16 SDs, 0 SdLazy, 23 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 301 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 could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_13-03-28-896.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0158_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_RubberTaipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_13-03-28-896.csv Received shutdown request...