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/mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 08:54:37,132 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 08:54:37,134 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 08:54:37,146 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 08:54:37,147 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 08:54:37,148 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 08:54:37,149 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 08:54:37,151 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 08:54:37,153 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 08:54:37,154 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 08:54:37,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 08:54:37,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 08:54:37,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 08:54:37,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 08:54:37,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 08:54:37,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 08:54:37,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 08:54:37,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 08:54:37,164 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 08:54:37,166 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 08:54:37,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 08:54:37,173 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 08:54:37,173 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 08:54:37,174 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-21 08:54:37,183 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 08:54:37,184 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 08:54:37,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 08:54:37,185 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 08:54:37,185 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 08:54:37,185 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 08:54:37,185 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-21 08:54:37,186 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 08:54:37,186 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 08:54:37,187 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 08:54:37,187 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 08:54:37,187 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 08:54:37,187 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 08:54:37,187 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 08:54:37,188 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 08:54:37,188 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 08:54:37,188 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 08:54:37,188 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 08:54:37,188 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 08:54:37,189 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 08:54:37,189 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 08:54:37,189 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 08:54:37,189 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 08:54:37,189 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 08:54:37,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 08:54:37,190 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 08:54:37,190 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 08:54:37,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 08:54:37,190 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 08:54:37,191 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 08:54:37,191 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 08:54:37,191 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 08:54:37,191 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 08:54:37,191 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 08:54:37,192 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 08:54:37,192 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 08:54:37,192 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 08:54:37,192 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 08:54:37,193 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 08:54:37,193 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 08:54:37,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 08:54:37,240 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 08:54:37,244 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 08:54:37,246 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 08:54:37,246 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 08:54:37,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-01-21 08:54:37,435 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 08:54:37,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 08:54:37,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 08:54:37,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 08:54:37,448 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 08:54:37,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22caeb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37, skipping insertion in model container [2018-01-21 08:54:37,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,468 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:54:37,516 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:54:37,629 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:54:37,646 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:54:37,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37 WrapperNode [2018-01-21 08:54:37,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 08:54:37,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 08:54:37,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 08:54:37,653 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 08:54:37,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (1/1) ... [2018-01-21 08:54:37,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 08:54:37,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 08:54:37,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 08:54:37,691 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 08:54:37,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (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 [2018-01-21 08:54:37,736 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 08:54:37,736 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 08:54:37,736 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-21 08:54:37,737 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-21 08:54:37,737 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 08:54:37,737 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 08:54:37,737 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 08:54:37,737 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 08:54:37,737 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 08:54:37,737 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 08:54:37,737 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 08:54:37,737 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 08:54:37,738 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-21 08:54:37,738 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-21 08:54:37,738 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 08:54:37,738 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 08:54:37,738 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 08:54:37,878 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 08:54:37,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:54:37 BoogieIcfgContainer [2018-01-21 08:54:37,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 08:54:37,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 08:54:37,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 08:54:37,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 08:54:37,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 08:54:37" (1/3) ... [2018-01-21 08:54:37,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c8288a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:54:37, skipping insertion in model container [2018-01-21 08:54:37,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:54:37" (2/3) ... [2018-01-21 08:54:37,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c8288a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:54:37, skipping insertion in model container [2018-01-21 08:54:37,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:54:37" (3/3) ... [2018-01-21 08:54:37,885 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-01-21 08:54:37,891 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 08:54:37,897 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-21 08:54:37,948 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:54:37,948 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:54:37,948 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:54:37,948 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:54:37,949 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:54:37,949 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:54:37,949 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:54:37,949 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-21 08:54:37,950 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:54:37,970 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-01-21 08:54:37,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-21 08:54:37,977 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:54:37,978 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:54:37,978 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 08:54:37,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1252112159, now seen corresponding path program 1 times [2018-01-21 08:54:37,986 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:54:38,045 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,045 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:54:38,045 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,045 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:54:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:54:38,097 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:54:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:54:38,160 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:54:38,160 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:54:38,160 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:54:38,162 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 08:54:38,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 08:54:38,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:54:38,175 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-01-21 08:54:38,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:54:38,323 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-01-21 08:54:38,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 08:54:38,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-01-21 08:54:38,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:54:38,332 INFO L225 Difference]: With dead ends: 42 [2018-01-21 08:54:38,332 INFO L226 Difference]: Without dead ends: 24 [2018-01-21 08:54:38,335 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:54:38,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-01-21 08:54:38,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-01-21 08:54:38,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-21 08:54:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-01-21 08:54:38,368 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 11 [2018-01-21 08:54:38,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:54:38,369 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-01-21 08:54:38,369 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 08:54:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-01-21 08:54:38,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 08:54:38,370 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:54:38,370 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:54:38,371 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 08:54:38,371 INFO L82 PathProgramCache]: Analyzing trace with hash 688848865, now seen corresponding path program 1 times [2018-01-21 08:54:38,371 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:54:38,373 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,373 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:54:38,373 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,373 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:54:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:54:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:54:38,443 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:54:38,451 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:54:38,452 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:54:38,462 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:54:38,462 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:54:38,462 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:54:38,462 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:54:38,462 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:54:38,463 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:54:38,463 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:54:38,463 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 08:54:38,463 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:54:38,464 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-01-21 08:54:38,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 08:54:38,465 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:54:38,465 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 08:54:38,465 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 08:54:38,465 INFO L82 PathProgramCache]: Analyzing trace with hash 73326, now seen corresponding path program 1 times [2018-01-21 08:54:38,465 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:54:38,467 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,467 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:54:38,467 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,467 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:54:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:54:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:54:38,477 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:54:38,478 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:54:38,480 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:54:38,480 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:54:38,481 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:54:38,481 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:54:38,481 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:54:38,481 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:54:38,481 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:54:38,481 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 08:54:38,481 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:54:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-01-21 08:54:38,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-21 08:54:38,484 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:54:38,484 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:54:38,484 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:54:38,485 INFO L82 PathProgramCache]: Analyzing trace with hash 17364112, now seen corresponding path program 1 times [2018-01-21 08:54:38,485 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:54:38,486 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,486 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:54:38,486 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,487 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:54:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:54:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:54:38,521 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:54:38,523 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:54:38,524 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:54:38,524 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:54:38,525 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:54:38,525 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:54:38,528 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:54:38,528 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:54:38,528 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:54:38,529 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:54:38,529 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:54:38,529 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:54:38,529 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:54:38,529 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 08:54:38,529 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:54:38,531 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-01-21 08:54:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-21 08:54:38,532 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:54:38,532 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:54:38,532 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 08:54:38,533 INFO L82 PathProgramCache]: Analyzing trace with hash 791078642, now seen corresponding path program 1 times [2018-01-21 08:54:38,533 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:54:38,534 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,535 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:54:38,535 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,535 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:54:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:54:38,548 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:54:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:54:38,590 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:54:38,591 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:54:38,591 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:54:38,591 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 08:54:38,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 08:54:38,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:54:38,592 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-01-21 08:54:38,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:54:38,649 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-01-21 08:54:38,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 08:54:38,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-21 08:54:38,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:54:38,651 INFO L225 Difference]: With dead ends: 42 [2018-01-21 08:54:38,651 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:54:38,652 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:54:38,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:54:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:54:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:54:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:54:38,653 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-01-21 08:54:38,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:54:38,653 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:54:38,653 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 08:54:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:54:38,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:54:38,658 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:54:38,658 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:54:38,659 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:54:38,659 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:54:38,659 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:54:38,661 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:54:38,661 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:54:38,661 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-21 08:54:38,661 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:54:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-01-21 08:54:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-21 08:54:38,663 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:54:38,663 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:54:38,663 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 08:54:38,664 INFO L82 PathProgramCache]: Analyzing trace with hash 648867155, now seen corresponding path program 1 times [2018-01-21 08:54:38,664 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:54:38,666 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,666 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:54:38,666 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:54:38,666 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:54:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:54:38,677 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:54:38,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 08:54:38,705 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:54:38,705 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:54:38,706 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:54:38,706 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 08:54:38,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 08:54:38,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:54:38,707 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-01-21 08:54:38,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:54:38,742 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-01-21 08:54:38,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 08:54:38,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-21 08:54:38,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:54:38,743 INFO L225 Difference]: With dead ends: 42 [2018-01-21 08:54:38,743 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:54:38,744 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 08:54:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:54:38,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:54:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:54:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:54:38,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-21 08:54:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:54:38,745 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:54:38,745 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 08:54:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:54:38,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:54:38,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 08:54:38 BoogieIcfgContainer [2018-01-21 08:54:38,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 08:54:38,749 INFO L168 Benchmark]: Toolchain (without parser) took 1313.32 ms. Allocated memory was 305.7 MB in the beginning and 468.7 MB in the end (delta: 163.1 MB). Free memory was 262.8 MB in the beginning and 400.0 MB in the end (delta: -137.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 5.3 GB. [2018-01-21 08:54:38,751 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 305.7 MB. Free memory is still 268.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:54:38,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.82 ms. Allocated memory is still 305.7 MB. Free memory was 262.8 MB in the beginning and 248.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:54:38,751 INFO L168 Benchmark]: Boogie Preprocessor took 37.27 ms. Allocated memory is still 305.7 MB. Free memory was 248.9 MB in the beginning and 246.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:54:38,752 INFO L168 Benchmark]: RCFGBuilder took 188.28 ms. Allocated memory is still 305.7 MB. Free memory was 246.9 MB in the beginning and 231.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:54:38,752 INFO L168 Benchmark]: TraceAbstraction took 868.93 ms. Allocated memory was 305.7 MB in the beginning and 468.7 MB in the end (delta: 163.1 MB). Free memory was 231.9 MB in the beginning and 400.0 MB in the end (delta: -168.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:54:38,754 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 305.7 MB. Free memory is still 268.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 210.82 ms. Allocated memory is still 305.7 MB. Free memory was 262.8 MB in the beginning and 248.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.27 ms. Allocated memory is still 305.7 MB. Free memory was 248.9 MB in the beginning and 246.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 188.28 ms. Allocated memory is still 305.7 MB. Free memory was 246.9 MB in the beginning and 231.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 868.93 ms. Allocated memory was 305.7 MB in the beginning and 468.7 MB in the end (delta: 163.1 MB). Free memory was 231.9 MB in the beginning and 400.0 MB in the end (delta: -168.1 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1072]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1453] CALL entry_point() [L1439] int len = 10; VAL [len=10] [L1440] CALL ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=40, malloc(size)={42:0}, size=40] [L1074] return malloc(size); VAL [\old(size)=40, \result={42:0}, malloc(size)={42:0}, size=40] - StatisticsResult: Ultimate Automizer benchmark data for error location: ldv_mallocErr0EnsuresViolation CFG has 5 procedures, 33 locations, 5 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 14 SDslu, 1 SDs, 0 SdLazy, 15 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 5 procedures, 33 locations, 5 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1453] CALL entry_point() [L1439] int len = 10; VAL [len=10] [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40] [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; VAL [\old(size)=40, \result={0:0}, size=40] [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_malloc(sizeof(struct A18*)*len)={0:0}, len=10] [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; VAL [array={0:0}, i=0, len=10] [L1443] COND TRUE, RET !array VAL [array={0:0}, i=0, len=10] [L1453] entry_point() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 33 locations, 5 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1452]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 5 procedures, 33 locations, 5 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 15 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1438]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: entry_pointErr0EnsuresViolation CFG has 5 procedures, 33 locations, 5 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 10 SDslu, 1 SDs, 0 SdLazy, 15 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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_test18_3_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_08-54-38-764.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_3_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_08-54-38-764.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_3_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_08-54-38-764.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_3_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_08-54-38-764.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_3_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_08-54-38-764.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_3_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_08-54-38-764.csv Received shutdown request...