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_imprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 17:23:44,607 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 17:23:44,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 17:23:44,624 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 17:23:44,625 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 17:23:44,626 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 17:23:44,627 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 17:23:44,628 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 17:23:44,630 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 17:23:44,631 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 17:23:44,632 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 17:23:44,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 17:23:44,633 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 17:23:44,634 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 17:23:44,635 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 17:23:44,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 17:23:44,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 17:23:44,642 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 17:23:44,643 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 17:23:44,645 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 17:23:44,647 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 17:23:44,647 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 17:23:44,648 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 17:23:44,649 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 17:23:44,650 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 17:23:44,651 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 17:23:44,651 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 17:23:44,652 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 17:23:44,652 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 17:23:44,652 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 17:23:44,653 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 17:23:44,653 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_imprecise.epf [2018-01-24 17:23:44,662 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 17:23:44,662 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 17:23:44,663 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 17:23:44,663 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 17:23:44,663 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 17:23:44,663 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 17:23:44,663 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 17:23:44,663 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 17:23:44,664 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 17:23:44,664 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 17:23:44,664 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 17:23:44,664 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 17:23:44,664 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 17:23:44,664 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 17:23:44,665 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 17:23:44,665 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 17:23:44,665 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 17:23:44,665 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 17:23:44,665 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 17:23:44,665 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 17:23:44,665 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 17:23:44,666 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 17:23:44,666 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 17:23:44,666 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 17:23:44,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 17:23:44,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 17:23:44,667 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 17:23:44,667 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 17:23:44,667 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 17:23:44,667 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 17:23:44,667 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 17:23:44,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 17:23:44,667 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 17:23:44,667 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 17:23:44,668 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 17:23:44,668 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 17:23:44,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 17:23:44,712 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 17:23:44,715 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 17:23:44,716 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 17:23:44,716 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 17:23:44,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_2_false-valid-memtrack_true-termination.i [2018-01-24 17:23:44,891 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 17:23:44,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 17:23:44,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 17:23:44,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 17:23:44,937 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 17:23:44,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:23:44" (1/1) ... [2018-01-24 17:23:44,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d434187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:44, skipping insertion in model container [2018-01-24 17:23:44,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:23:44" (1/1) ... [2018-01-24 17:23:44,960 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:23:45,011 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:23:45,123 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:23:45,135 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:23:45,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45 WrapperNode [2018-01-24 17:23:45,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 17:23:45,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 17:23:45,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 17:23:45,143 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 17:23:45,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (1/1) ... [2018-01-24 17:23:45,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (1/1) ... [2018-01-24 17:23:45,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (1/1) ... [2018-01-24 17:23:45,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (1/1) ... [2018-01-24 17:23:45,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (1/1) ... [2018-01-24 17:23:45,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (1/1) ... [2018-01-24 17:23:45,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (1/1) ... [2018-01-24 17:23:45,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 17:23:45,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 17:23:45,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 17:23:45,184 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 17:23:45,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (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 17:23:45,243 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 17:23:45,243 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 17:23:45,243 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 17:23:45,243 INFO L136 BoogieDeclarations]: Found implementation of procedure f5 [2018-01-24 17:23:45,243 INFO L136 BoogieDeclarations]: Found implementation of procedure g5 [2018-01-24 17:23:45,243 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 17:23:45,244 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 17:23:45,244 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 17:23:45,244 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 17:23:45,244 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 17:23:45,244 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 17:23:45,244 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 17:23:45,245 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 17:23:45,245 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 17:23:45,245 INFO L128 BoogieDeclarations]: Found specification of procedure f5 [2018-01-24 17:23:45,245 INFO L128 BoogieDeclarations]: Found specification of procedure g5 [2018-01-24 17:23:45,245 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 17:23:45,245 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 17:23:45,246 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 17:23:45,246 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 17:23:45,404 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 17:23:45,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:23:45 BoogieIcfgContainer [2018-01-24 17:23:45,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 17:23:45,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 17:23:45,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 17:23:45,408 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 17:23:45,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 05:23:44" (1/3) ... [2018-01-24 17:23:45,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5d33ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:23:45, skipping insertion in model container [2018-01-24 17:23:45,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:23:45" (2/3) ... [2018-01-24 17:23:45,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5d33ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:23:45, skipping insertion in model container [2018-01-24 17:23:45,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:23:45" (3/3) ... [2018-01-24 17:23:45,411 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test5_2_false-valid-memtrack_true-termination.i [2018-01-24 17:23:45,419 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 17:23:45,427 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-24 17:23:45,480 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 17:23:45,480 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 17:23:45,480 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 17:23:45,480 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 17:23:45,480 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 17:23:45,480 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 17:23:45,481 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 17:23:45,481 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 17:23:45,482 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 17:23:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-01-24 17:23:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 17:23:45,512 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:23:45,513 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:23:45,514 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-24 17:23:45,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1938829302, now seen corresponding path program 1 times [2018-01-24 17:23:45,522 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:23:45,588 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:45,588 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:23:45,588 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:45,589 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:23:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:23:45,655 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:23:45,847 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 17:23:45,849 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:23:45,849 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:23:45,849 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:23:45,851 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 17:23:45,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 17:23:45,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:23:45,864 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 7 states. [2018-01-24 17:23:46,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:23:46,018 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2018-01-24 17:23:46,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 17:23:46,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-01-24 17:23:46,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:23:46,027 INFO L225 Difference]: With dead ends: 33 [2018-01-24 17:23:46,028 INFO L226 Difference]: Without dead ends: 29 [2018-01-24 17:23:46,030 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 17:23:46,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-01-24 17:23:46,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-01-24 17:23:46,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-01-24 17:23:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-01-24 17:23:46,058 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 20 [2018-01-24 17:23:46,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:23:46,058 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-01-24 17:23:46,058 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 17:23:46,058 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-01-24 17:23:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 17:23:46,059 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:23:46,059 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:23:46,059 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-24 17:23:46,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1938829303, now seen corresponding path program 1 times [2018-01-24 17:23:46,060 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:23:46,062 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:46,062 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:23:46,062 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:46,063 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:23:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:23:46,081 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:23:46,183 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 17:23:46,184 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:23:46,184 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:23:46,184 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:23:46,186 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 17:23:46,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 17:23:46,186 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:23:46,187 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2018-01-24 17:23:46,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:23:46,276 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-01-24 17:23:46,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 17:23:46,276 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-01-24 17:23:46,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:23:46,277 INFO L225 Difference]: With dead ends: 29 [2018-01-24 17:23:46,277 INFO L226 Difference]: Without dead ends: 28 [2018-01-24 17:23:46,278 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 17:23:46,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-01-24 17:23:46,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-01-24 17:23:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-24 17:23:46,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-01-24 17:23:46,283 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 20 [2018-01-24 17:23:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:23:46,284 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-01-24 17:23:46,284 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 17:23:46,284 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-01-24 17:23:46,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-24 17:23:46,285 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:23:46,285 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:23:46,285 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-24 17:23:46,286 INFO L82 PathProgramCache]: Analyzing trace with hash -665916823, now seen corresponding path program 1 times [2018-01-24 17:23:46,286 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:23:46,287 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:46,288 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:23:46,288 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:46,288 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:23:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:23:46,303 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:23:46,343 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 17:23:46,344 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:23:46,344 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 17:23:46,344 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:23:46,344 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 17:23:46,344 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 17:23:46,344 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 17:23:46,345 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 3 states. [2018-01-24 17:23:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:23:46,383 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-01-24 17:23:46,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 17:23:46,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-01-24 17:23:46,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:23:46,386 INFO L225 Difference]: With dead ends: 41 [2018-01-24 17:23:46,387 INFO L226 Difference]: Without dead ends: 37 [2018-01-24 17:23:46,387 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 17:23:46,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-01-24 17:23:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-01-24 17:23:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-01-24 17:23:46,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-01-24 17:23:46,402 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 24 [2018-01-24 17:23:46,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:23:46,402 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-01-24 17:23:46,402 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 17:23:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-01-24 17:23:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 17:23:46,405 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:23:46,405 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:23:46,405 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-24 17:23:46,405 INFO L82 PathProgramCache]: Analyzing trace with hash 487892875, now seen corresponding path program 1 times [2018-01-24 17:23:46,405 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:23:46,407 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:46,407 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:23:46,407 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:46,407 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:23:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:23:46,422 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:23:46,575 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 17:23:46,575 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:23:46,575 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 17:23:46,575 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:23:46,576 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 17:23:46,576 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 17:23:46,576 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 17:23:46,577 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 8 states. [2018-01-24 17:23:46,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:23:46,654 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-01-24 17:23:46,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 17:23:46,655 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-01-24 17:23:46,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:23:46,656 INFO L225 Difference]: With dead ends: 41 [2018-01-24 17:23:46,656 INFO L226 Difference]: Without dead ends: 27 [2018-01-24 17:23:46,656 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:23:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-24 17:23:46,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-01-24 17:23:46,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-24 17:23:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-01-24 17:23:46,660 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 25 [2018-01-24 17:23:46,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:23:46,660 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-01-24 17:23:46,660 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 17:23:46,660 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-01-24 17:23:46,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 17:23:46,661 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:23:46,661 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:23:46,661 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-24 17:23:46,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1904749191, now seen corresponding path program 1 times [2018-01-24 17:23:46,661 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:23:46,663 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:46,663 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:23:46,663 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:23:46,663 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:23:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 17:23:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 17:23:46,707 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 17:23:46,718 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 17:23:46,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 05:23:46 BoogieIcfgContainer [2018-01-24 17:23:46,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 17:23:46,729 INFO L168 Benchmark]: Toolchain (without parser) took 1837.98 ms. Allocated memory was 300.9 MB in the beginning and 455.6 MB in the end (delta: 154.7 MB). Free memory was 259.8 MB in the beginning and 365.9 MB in the end (delta: -106.0 MB). Peak memory consumption was 48.6 MB. Max. memory is 5.3 GB. [2018-01-24 17:23:46,730 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 300.9 MB. Free memory is still 266.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:23:46,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.29 ms. Allocated memory is still 300.9 MB. Free memory was 259.8 MB in the beginning and 247.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. [2018-01-24 17:23:46,731 INFO L168 Benchmark]: Boogie Preprocessor took 41.03 ms. Allocated memory is still 300.9 MB. Free memory was 247.6 MB in the beginning and 245.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:23:46,731 INFO L168 Benchmark]: RCFGBuilder took 221.34 ms. Allocated memory is still 300.9 MB. Free memory was 245.6 MB in the beginning and 231.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 5.3 GB. [2018-01-24 17:23:46,731 INFO L168 Benchmark]: TraceAbstraction took 1322.97 ms. Allocated memory was 300.9 MB in the beginning and 455.6 MB in the end (delta: 154.7 MB). Free memory was 231.4 MB in the beginning and 365.9 MB in the end (delta: -134.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 5.3 GB. [2018-01-24 17:23:46,732 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 300.9 MB. Free memory is still 266.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 210.29 ms. Allocated memory is still 300.9 MB. Free memory was 259.8 MB in the beginning and 247.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.03 ms. Allocated memory is still 300.9 MB. Free memory was 247.6 MB in the beginning and 245.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 221.34 ms. Allocated memory is still 300.9 MB. Free memory was 245.6 MB in the beginning and 231.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1322.97 ms. Allocated memory was 300.9 MB in the beginning and 455.6 MB in the end (delta: 154.7 MB). Free memory was 231.4 MB in the beginning and 365.9 MB in the end (delta: -134.4 MB). Peak memory consumption was 20.2 MB. 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: 1449]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1449. Possible FailurePath: [L1450] CALL entry_point() [L1445] CALL, EXPR f5() [L1434] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={6:0}, size=4] [L1074] RET return malloc(size); VAL [\old(size)=4, \result={6:0}, malloc(size)={6:0}, size=4] [L1434] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={6:0}] [L1434] int *p = (int *)ldv_malloc(sizeof(int)); [L1435] RET return 0; VAL [\result={0:0}, p={6:0}] [L1445] EXPR f5() VAL [f5()={0:0}] [L1445] int *p = f5(); [L1446] CALL g5(p) VAL [p={0:0}] [L1439] COND FALSE !(\read(*p)) VAL [p={0:0}, p={0:0}] [L1446] FCALL g5(p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 33 locations, 3 error locations. UNSAFE Result, 1.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 29 SDslu, 379 SDs, 0 SdLazy, 99 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 4817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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/memleaks_test5_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_17-23-46-738.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_17-23-46-738.csv Received shutdown request...