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_mostprecise.epf -i ../../../trunk/examples/svcomp/list-properties/splice_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 20:53:35,490 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 20:53:35,492 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 20:53:35,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 20:53:35,505 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 20:53:35,506 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 20:53:35,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 20:53:35,508 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 20:53:35,511 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 20:53:35,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 20:53:35,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 20:53:35,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 20:53:35,513 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 20:53:35,514 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 20:53:35,514 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 20:53:35,517 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 20:53:35,519 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 20:53:35,521 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 20:53:35,523 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 20:53:35,524 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 20:53:35,526 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 20:53:35,526 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 20:53:35,527 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 20:53:35,528 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 20:53:35,528 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 20:53:35,530 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 20:53:35,530 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 20:53:35,531 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 20:53:35,531 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 20:53:35,531 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 20:53:35,532 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 20:53:35,532 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_mostprecise.epf [2018-01-24 20:53:35,542 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 20:53:35,542 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 20:53:35,543 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 20:53:35,543 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 20:53:35,543 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 20:53:35,543 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 20:53:35,543 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 20:53:35,544 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-24 20:53:35,544 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 20:53:35,544 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 20:53:35,545 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 20:53:35,545 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 20:53:35,545 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 20:53:35,545 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 20:53:35,545 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 20:53:35,545 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 20:53:35,546 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 20:53:35,546 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 20:53:35,546 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 20:53:35,546 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 20:53:35,546 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 20:53:35,547 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 20:53:35,547 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 20:53:35,547 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 20:53:35,547 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 20:53:35,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 20:53:35,548 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 20:53:35,548 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 20:53:35,548 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 20:53:35,548 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 20:53:35,548 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 20:53:35,549 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 20:53:35,549 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 20:53:35,549 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 20:53:35,549 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 20:53:35,550 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 20:53:35,550 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 20:53:35,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 20:53:35,593 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 20:53:35,597 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 20:53:35,598 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 20:53:35,598 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 20:53:35,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/splice_true-unreach-call_false-valid-memtrack.i [2018-01-24 20:53:35,765 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 20:53:35,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 20:53:35,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 20:53:35,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 20:53:35,782 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 20:53:35,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:35,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472f686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35, skipping insertion in model container [2018-01-24 20:53:35,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:35,807 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 20:53:35,847 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 20:53:35,964 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 20:53:35,984 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 20:53:35,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35 WrapperNode [2018-01-24 20:53:35,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 20:53:35,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 20:53:35,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 20:53:35,992 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 20:53:36,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:36,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:36,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:36,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:36,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:36,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:36,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (1/1) ... [2018-01-24 20:53:36,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 20:53:36,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 20:53:36,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 20:53:36,026 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 20:53:36,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (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 20:53:36,081 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 20:53:36,081 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 20:53:36,081 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-01-24 20:53:36,081 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 20:53:36,081 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 20:53:36,081 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 20:53:36,081 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 20:53:36,081 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 20:53:36,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 20:53:36,083 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 20:53:36,428 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 20:53:36,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 08:53:36 BoogieIcfgContainer [2018-01-24 20:53:36,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 20:53:36,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 20:53:36,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 20:53:36,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 20:53:36,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 08:53:35" (1/3) ... [2018-01-24 20:53:36,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77131f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 08:53:36, skipping insertion in model container [2018-01-24 20:53:36,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:53:35" (2/3) ... [2018-01-24 20:53:36,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77131f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 08:53:36, skipping insertion in model container [2018-01-24 20:53:36,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 08:53:36" (3/3) ... [2018-01-24 20:53:36,437 INFO L105 eAbstractionObserver]: Analyzing ICFG splice_true-unreach-call_false-valid-memtrack.i [2018-01-24 20:53:36,446 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 20:53:36,455 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2018-01-24 20:53:36,500 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 20:53:36,500 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 20:53:36,500 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 20:53:36,500 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 20:53:36,501 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 20:53:36,501 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 20:53:36,501 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 20:53:36,501 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 20:53:36,501 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 20:53:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-01-24 20:53:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-24 20:53:36,524 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:53:36,525 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:53:36,526 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 20:53:36,529 INFO L82 PathProgramCache]: Analyzing trace with hash 26423453, now seen corresponding path program 1 times [2018-01-24 20:53:36,531 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:53:36,571 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:53:36,572 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:53:36,572 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:53:36,572 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:53:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:53:36,622 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:53:36,655 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 20:53:36,657 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:53:36,657 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 20:53:36,657 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:53:36,659 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-24 20:53:36,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-24 20:53:36,670 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 20:53:36,672 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2018-01-24 20:53:36,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:53:36,777 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2018-01-24 20:53:36,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-24 20:53:36,778 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-01-24 20:53:36,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:53:36,788 INFO L225 Difference]: With dead ends: 144 [2018-01-24 20:53:36,788 INFO L226 Difference]: Without dead ends: 82 [2018-01-24 20:53:36,792 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 20:53:36,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-01-24 20:53:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-01-24 20:53:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-01-24 20:53:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-01-24 20:53:36,825 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 12 [2018-01-24 20:53:36,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:53:36,826 INFO L432 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-01-24 20:53:36,826 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-24 20:53:36,826 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-01-24 20:53:36,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 20:53:36,826 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:53:36,826 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:53:36,826 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 20:53:36,827 INFO L82 PathProgramCache]: Analyzing trace with hash -378065087, now seen corresponding path program 1 times [2018-01-24 20:53:36,827 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:53:36,828 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:53:36,828 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:53:36,828 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:53:36,828 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:53:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:53:36,844 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:53:36,914 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 20:53:36,915 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:53:36,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 20:53:36,915 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:53:36,917 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 20:53:36,917 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 20:53:36,917 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:53:36,918 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 5 states. [2018-01-24 20:53:37,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:53:37,127 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2018-01-24 20:53:37,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 20:53:37,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 20:53:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:53:37,129 INFO L225 Difference]: With dead ends: 101 [2018-01-24 20:53:37,129 INFO L226 Difference]: Without dead ends: 91 [2018-01-24 20:53:37,131 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-24 20:53:37,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-01-24 20:53:37,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 85. [2018-01-24 20:53:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-01-24 20:53:37,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2018-01-24 20:53:37,141 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 14 [2018-01-24 20:53:37,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:53:37,142 INFO L432 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2018-01-24 20:53:37,142 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 20:53:37,142 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2018-01-24 20:53:37,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 20:53:37,142 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:53:37,143 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:53:37,143 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 20:53:37,143 INFO L82 PathProgramCache]: Analyzing trace with hash -378065086, now seen corresponding path program 1 times [2018-01-24 20:53:37,143 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:53:37,144 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:53:37,144 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:53:37,144 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:53:37,144 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:53:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:53:37,162 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:53:37,253 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 20:53:37,253 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:53:37,253 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 20:53:37,253 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:53:37,254 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 20:53:37,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 20:53:37,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:53:37,254 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2018-01-24 20:53:37,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:53:37,422 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2018-01-24 20:53:37,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 20:53:37,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 20:53:37,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:53:37,423 INFO L225 Difference]: With dead ends: 108 [2018-01-24 20:53:37,424 INFO L226 Difference]: Without dead ends: 100 [2018-01-24 20:53:37,424 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-24 20:53:37,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-01-24 20:53:37,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2018-01-24 20:53:37,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-01-24 20:53:37,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2018-01-24 20:53:37,431 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 14 [2018-01-24 20:53:37,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:53:37,431 INFO L432 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2018-01-24 20:53:37,431 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 20:53:37,431 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2018-01-24 20:53:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 20:53:37,432 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:53:37,432 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:53:37,432 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-01-24 20:53:37,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1532728651, now seen corresponding path program 1 times [2018-01-24 20:53:37,432 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:53:37,433 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:53:37,433 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:53:37,433 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:53:37,433 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:53:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 20:53:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 20:53:37,489 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 20:53:37,501 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 20:53:37,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 08:53:37 BoogieIcfgContainer [2018-01-24 20:53:37,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 20:53:37,519 INFO L168 Benchmark]: Toolchain (without parser) took 1753.23 ms. Allocated memory was 302.5 MB in the beginning and 461.9 MB in the end (delta: 159.4 MB). Free memory was 262.4 MB in the beginning and 369.9 MB in the end (delta: -107.4 MB). Peak memory consumption was 51.9 MB. Max. memory is 5.3 GB. [2018-01-24 20:53:37,520 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 302.5 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 20:53:37,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.39 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 250.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 5.3 GB. [2018-01-24 20:53:37,520 INFO L168 Benchmark]: Boogie Preprocessor took 34.45 ms. Allocated memory is still 302.5 MB. Free memory was 250.2 MB in the beginning and 248.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 20:53:37,520 INFO L168 Benchmark]: RCFGBuilder took 402.86 ms. Allocated memory is still 302.5 MB. Free memory was 248.3 MB in the beginning and 222.3 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. [2018-01-24 20:53:37,521 INFO L168 Benchmark]: TraceAbstraction took 1087.82 ms. Allocated memory was 302.5 MB in the beginning and 461.9 MB in the end (delta: 159.4 MB). Free memory was 222.3 MB in the beginning and 369.9 MB in the end (delta: -147.6 MB). Peak memory consumption was 11.8 MB. Max. memory is 5.3 GB. [2018-01-24 20:53:37,523 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 302.5 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.39 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 250.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.45 ms. Allocated memory is still 302.5 MB. Free memory was 250.2 MB in the beginning and 248.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 402.86 ms. Allocated memory is still 302.5 MB. Free memory was 248.3 MB in the beginning and 222.3 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1087.82 ms. Allocated memory was 302.5 MB in the beginning and 461.9 MB in the end (delta: 159.4 MB). Free memory was 222.3 MB in the beginning and 369.9 MB in the end (delta: -147.6 MB). Peak memory consumption was 11.8 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: 626]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 626. Possible FailurePath: [L627] int flag = 1; VAL [flag=1] [L628] EXPR, FCALL malloc(sizeof(struct node)) VAL [flag=1, malloc(sizeof(struct node))={10:0}] [L628] List a = (List) malloc(sizeof(struct node)); VAL [a={10:0}, flag=1, malloc(sizeof(struct node))={10:0}] [L629] COND FALSE !(a == 0) VAL [a={10:0}, flag=1, malloc(sizeof(struct node))={10:0}] [L630] List t; [L631] List l1; [L632] List l2; [L633] List b; [L634] List u; [L635] List p = a; VAL [a={10:0}, flag=1, malloc(sizeof(struct node))={10:0}, p={10:0}] [L636] COND FALSE !(__VERIFIER_nondet_int()) [L649] FCALL p->h = 3 VAL [a={10:0}, flag=1, malloc(sizeof(struct node))={10:0}, p={10:0}] [L650] EXPR, FCALL a->h VAL [a={10:0}, a->h=3, flag=1, malloc(sizeof(struct node))={10:0}, p={10:0}] [L650] COND TRUE a->h == 3 [L650] return 0; VAL [\result=0, a={10:0}, flag=1, malloc(sizeof(struct node))={10:0}, p={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 92 locations, 29 error locations. UNSAFE Result, 1.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 189 SDtfs, 426 SDslu, 74 SDs, 0 SdLazy, 155 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred 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, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 1551 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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/splice_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_20-53-37-531.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/splice_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_mostprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_20-53-37-531.csv Received shutdown request...