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_preciseopt.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 03:26:39,664 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 03:26:39,667 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 03:26:39,682 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 03:26:39,683 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 03:26:39,684 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 03:26:39,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 03:26:39,687 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 03:26:39,689 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 03:26:39,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 03:26:39,690 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 03:26:39,691 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 03:26:39,692 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 03:26:39,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 03:26:39,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 03:26:39,697 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 03:26:39,699 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 03:26:39,701 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 03:26:39,703 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 03:26:39,704 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 03:26:39,707 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 03:26:39,707 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 03:26:39,708 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 03:26:39,709 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 03:26:39,709 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 03:26:39,711 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 03:26:39,711 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 03:26:39,712 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 03:26:39,712 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 03:26:39,712 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 03:26:39,713 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 03:26:39,713 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_preciseopt.epf [2018-01-25 03:26:39,723 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 03:26:39,723 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 03:26:39,724 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 03:26:39,724 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 03:26:39,724 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 03:26:39,725 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 03:26:39,725 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 03:26:39,725 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 03:26:39,725 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 03:26:39,726 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 03:26:39,726 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 03:26:39,727 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 03:26:39,727 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 03:26:39,727 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 03:26:39,727 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 03:26:39,727 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 03:26:39,727 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 03:26:39,728 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 03:26:39,728 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 03:26:39,728 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 03:26:39,728 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 03:26:39,729 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 03:26:39,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 03:26:39,729 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 03:26:39,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 03:26:39,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:26:39,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 03:26:39,730 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 03:26:39,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 03:26:39,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 03:26:39,731 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 03:26:39,731 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 03:26:39,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 03:26:39,731 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 03:26:39,731 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 03:26:39,732 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 03:26:39,732 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 03:26:39,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 03:26:39,782 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 03:26:39,787 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 03:26:39,789 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 03:26:39,789 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 03:26:39,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-free.i [2018-01-25 03:26:40,002 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 03:26:40,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 03:26:40,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 03:26:40,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 03:26:40,016 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 03:26:40,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:26:39" (1/1) ... [2018-01-25 03:26:40,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388a8c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40, skipping insertion in model container [2018-01-25 03:26:40,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:26:39" (1/1) ... [2018-01-25 03:26:40,042 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:26:40,095 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:26:40,211 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:26:40,224 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:26:40,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40 WrapperNode [2018-01-25 03:26:40,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 03:26:40,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 03:26:40,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 03:26:40,232 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 03:26:40,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (1/1) ... [2018-01-25 03:26:40,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (1/1) ... [2018-01-25 03:26:40,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (1/1) ... [2018-01-25 03:26:40,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (1/1) ... [2018-01-25 03:26:40,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (1/1) ... [2018-01-25 03:26:40,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (1/1) ... [2018-01-25 03:26:40,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (1/1) ... [2018-01-25 03:26:40,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 03:26:40,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 03:26:40,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 03:26:40,262 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 03:26:40,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (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 03:26:40,314 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 03:26:40,315 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 03:26:40,315 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-25 03:26:40,315 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 03:26:40,315 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 03:26:40,315 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 03:26:40,315 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 03:26:40,315 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 03:26:40,315 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 03:26:40,316 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 03:26:40,316 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 03:26:40,316 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-25 03:26:40,316 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 03:26:40,316 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 03:26:40,316 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 03:26:40,316 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 03:26:40,461 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 03:26:40,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:26:40 BoogieIcfgContainer [2018-01-25 03:26:40,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 03:26:40,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 03:26:40,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 03:26:40,465 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 03:26:40,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 03:26:39" (1/3) ... [2018-01-25 03:26:40,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529d9800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:26:40, skipping insertion in model container [2018-01-25 03:26:40,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:26:40" (2/3) ... [2018-01-25 03:26:40,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529d9800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:26:40, skipping insertion in model container [2018-01-25 03:26:40,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:26:40" (3/3) ... [2018-01-25 03:26:40,468 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test1_false-valid-free.i [2018-01-25 03:26:40,475 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 03:26:40,482 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-25 03:26:40,533 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 03:26:40,533 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 03:26:40,533 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 03:26:40,533 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 03:26:40,533 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 03:26:40,534 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 03:26:40,534 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 03:26:40,534 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 03:26:40,535 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 03:26:40,557 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-01-25 03:26:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-25 03:26:40,565 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:26:40,566 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:26:40,566 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 03:26:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1168738877, now seen corresponding path program 1 times [2018-01-25 03:26:40,575 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:26:40,646 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:40,647 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:26:40,647 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:40,647 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:26:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:26:40,713 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:26:40,926 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 03:26:40,928 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:26:40,928 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:26:40,928 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:26:40,930 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:26:40,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:26:40,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:26:40,944 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2018-01-25 03:26:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:26:41,090 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-01-25 03:26:41,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:26:41,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-01-25 03:26:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:26:41,102 INFO L225 Difference]: With dead ends: 33 [2018-01-25 03:26:41,103 INFO L226 Difference]: Without dead ends: 28 [2018-01-25 03:26:41,105 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:26:41,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-01-25 03:26:41,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-01-25 03:26:41,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-25 03:26:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-01-25 03:26:41,135 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2018-01-25 03:26:41,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:26:41,135 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-01-25 03:26:41,135 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:26:41,135 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-01-25 03:26:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-25 03:26:41,136 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:26:41,136 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:26:41,136 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 03:26:41,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1168738878, now seen corresponding path program 1 times [2018-01-25 03:26:41,136 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:26:41,138 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:41,138 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:26:41,139 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:41,139 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:26:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:26:41,157 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:26:41,221 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 03:26:41,311 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:26:41,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:26:41,312 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:26:41,313 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:26:41,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:26:41,313 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:26:41,314 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 5 states. [2018-01-25 03:26:41,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:26:41,359 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-01-25 03:26:41,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:26:41,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-01-25 03:26:41,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:26:41,362 INFO L225 Difference]: With dead ends: 32 [2018-01-25 03:26:41,362 INFO L226 Difference]: Without dead ends: 30 [2018-01-25 03:26:41,363 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:26:41,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-25 03:26:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2018-01-25 03:26:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-25 03:26:41,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-01-25 03:26:41,367 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 13 [2018-01-25 03:26:41,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:26:41,367 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-01-25 03:26:41,367 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:26:41,368 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-01-25 03:26:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 03:26:41,368 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:26:41,369 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:26:41,369 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 03:26:41,369 INFO L82 PathProgramCache]: Analyzing trace with hash -602021893, now seen corresponding path program 1 times [2018-01-25 03:26:41,369 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:26:41,371 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:41,372 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:26:41,372 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:41,372 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:26:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:26:41,396 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:26:41,496 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 03:26:41,496 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:26:41,497 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:26:41,497 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:26:41,497 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 03:26:41,497 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 03:26:41,498 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:26:41,498 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 6 states. [2018-01-25 03:26:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:26:41,631 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-01-25 03:26:41,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 03:26:41,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-01-25 03:26:41,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:26:41,633 INFO L225 Difference]: With dead ends: 28 [2018-01-25 03:26:41,633 INFO L226 Difference]: Without dead ends: 27 [2018-01-25 03:26:41,633 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:26:41,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-25 03:26:41,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-01-25 03:26:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-01-25 03:26:41,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-01-25 03:26:41,642 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 15 [2018-01-25 03:26:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:26:41,643 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-01-25 03:26:41,643 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 03:26:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-01-25 03:26:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 03:26:41,644 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:26:41,644 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:26:41,644 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 03:26:41,645 INFO L82 PathProgramCache]: Analyzing trace with hash -602021892, now seen corresponding path program 1 times [2018-01-25 03:26:41,645 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:26:41,647 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:41,648 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:26:41,648 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:41,648 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:26:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:26:41,663 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:26:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:26:41,750 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:26:41,751 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:26:41,751 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:26:41,751 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 03:26:41,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 03:26:41,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:26:41,752 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 6 states. [2018-01-25 03:26:41,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:26:41,810 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-01-25 03:26:41,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:26:41,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-01-25 03:26:41,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:26:41,811 INFO L225 Difference]: With dead ends: 27 [2018-01-25 03:26:41,811 INFO L226 Difference]: Without dead ends: 26 [2018-01-25 03:26:41,812 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:26:41,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-01-25 03:26:41,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-01-25 03:26:41,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-01-25 03:26:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-01-25 03:26:41,815 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 15 [2018-01-25 03:26:41,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:26:41,815 INFO L432 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-01-25 03:26:41,815 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 03:26:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-01-25 03:26:41,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 03:26:41,817 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:26:41,817 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:26:41,817 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-01-25 03:26:41,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1482809507, now seen corresponding path program 1 times [2018-01-25 03:26:41,818 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:26:41,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:41,819 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:26:41,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:26:41,820 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:26:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-25 03:26:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-25 03:26:41,882 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-25 03:26:41,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 03:26:41 BoogieIcfgContainer [2018-01-25 03:26:41,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 03:26:41,906 INFO L168 Benchmark]: Toolchain (without parser) took 1903.86 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 262.4 MB in the beginning and 395.9 MB in the end (delta: -133.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 5.3 GB. [2018-01-25 03:26:41,908 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 305.1 MB. Free memory is still 269.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 03:26:41,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.02 ms. Allocated memory is still 305.1 MB. Free memory was 262.4 MB in the beginning and 250.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. [2018-01-25 03:26:41,908 INFO L168 Benchmark]: Boogie Preprocessor took 29.15 ms. Allocated memory is still 305.1 MB. Free memory was 250.1 MB in the beginning and 248.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 03:26:41,908 INFO L168 Benchmark]: RCFGBuilder took 200.24 ms. Allocated memory is still 305.1 MB. Free memory was 248.1 MB in the beginning and 235.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. [2018-01-25 03:26:41,909 INFO L168 Benchmark]: TraceAbstraction took 1443.04 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 235.5 MB in the beginning and 395.9 MB in the end (delta: -160.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 03:26:41,910 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 305.1 MB. Free memory is still 269.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 222.02 ms. Allocated memory is still 305.1 MB. Free memory was 262.4 MB in the beginning and 250.1 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.15 ms. Allocated memory is still 305.1 MB. Free memory was 250.1 MB in the beginning and 248.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 200.24 ms. Allocated memory is still 305.1 MB. Free memory was 248.1 MB in the beginning and 235.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1443.04 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 235.5 MB in the beginning and 395.9 MB in the end (delta: -160.4 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L1441] CALL entry_point() [L1435] 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] [L1435] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={6:0}] [L1435] int *p = (int *)ldv_malloc(sizeof(int)); [L1436] FCALL free(p) VAL [p={6:0}] [L1437] FCALL free(p) VAL [p={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 5 error locations. UNSAFE Result, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 17 SDslu, 245 SDs, 0 SdLazy, 83 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1292 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 proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_03-26-41-917.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-25_03-26-41-917.csv Received shutdown request...