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_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 00:09:20,307 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:09:20,308 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:09:20,320 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:09:20,320 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:09:20,321 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:09:20,322 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:09:20,323 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:09:20,324 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:09:20,325 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:09:20,326 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 00:09:20,326 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 00:09:20,326 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 00:09:20,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 00:09:20,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 00:09:20,330 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 00:09:20,332 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 00:09:20,334 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 00:09:20,336 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 00:09:20,337 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 00:09:20,339 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-30 00:09:20,344 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 00:09:20,345 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 00:09:20,345 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 00:09:20,355 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:09:20,355 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:09:20,356 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:09:20,356 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:09:20,356 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:09:20,356 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:09:20,357 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:09:20,357 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:09:20,357 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:09:20,358 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 00:09:20,358 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:09:20,358 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:09:20,358 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:09:20,358 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 00:09:20,359 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 00:09:20,359 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 00:09:20,359 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:09:20,359 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:09:20,359 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:09:20,359 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:09:20,360 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:09:20,360 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:09:20,360 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:09:20,360 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:09:20,360 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:09:20,361 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:09:20,361 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:09:20,361 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:09:20,361 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:09:20,361 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:09:20,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:09:20,362 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:09:20,363 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:09:20,363 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:09:20,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:09:20,411 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:09:20,415 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:09:20,417 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:09:20,417 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:09:20,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test5_2_false-valid-memtrack_true-termination.i [2018-01-30 00:09:20,617 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:09:20,624 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-30 00:09:20,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:09:20,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:09:20,632 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:09:20,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7acb6c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20, skipping insertion in model container [2018-01-30 00:09:20,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,655 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:09:20,709 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:09:20,816 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:09:20,828 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:09:20,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20 WrapperNode [2018-01-30 00:09:20,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:09:20,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:09:20,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:09:20,837 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:09:20,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (1/1) ... [2018-01-30 00:09:20,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:09:20,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:09:20,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:09:20,871 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:09:20,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (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 [2018-01-30 00:09:20,917 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:09:20,917 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:09:20,917 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-30 00:09:20,917 INFO L136 BoogieDeclarations]: Found implementation of procedure f5 [2018-01-30 00:09:20,917 INFO L136 BoogieDeclarations]: Found implementation of procedure g5 [2018-01-30 00:09:20,917 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-30 00:09:20,917 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:09:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 00:09:20,917 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure f5 [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure g5 [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:09:20,918 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:09:20,919 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:09:21,048 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:09:21,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:09:21 BoogieIcfgContainer [2018-01-30 00:09:21,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:09:21,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 00:09:21,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 00:09:21,053 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 00:09:21,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:09:20" (1/3) ... [2018-01-30 00:09:21,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1252e32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:09:21, skipping insertion in model container [2018-01-30 00:09:21,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:20" (2/3) ... [2018-01-30 00:09:21,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1252e32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:09:21, skipping insertion in model container [2018-01-30 00:09:21,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:09:21" (3/3) ... [2018-01-30 00:09:21,055 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test5_2_false-valid-memtrack_true-termination.i [2018-01-30 00:09:21,062 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 00:09:21,067 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-30 00:09:21,109 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 00:09:21,109 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 00:09:21,110 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 00:09:21,110 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 00:09:21,110 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 00:09:21,110 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 00:09:21,110 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 00:09:21,110 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 00:09:21,111 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 00:09:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-30 00:09:21,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-30 00:09:21,132 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:21,133 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:21,133 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-30 00:09:21,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1352423081, now seen corresponding path program 1 times [2018-01-30 00:09:21,139 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:21,139 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:21,185 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:21,185 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:21,186 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:21,244 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:09:21,428 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:21,428 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-30 00:09:21,430 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-30 00:09:21,445 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-30 00:09:21,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-30 00:09:21,448 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 7 states. [2018-01-30 00:09:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:21,600 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2018-01-30 00:09:21,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 00:09:21,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-01-30 00:09:21,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:21,614 INFO L225 Difference]: With dead ends: 41 [2018-01-30 00:09:21,614 INFO L226 Difference]: Without dead ends: 37 [2018-01-30 00:09:21,617 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-30 00:09:21,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-01-30 00:09:21,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-01-30 00:09:21,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-01-30 00:09:21,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-01-30 00:09:21,646 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 27 [2018-01-30 00:09:21,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:21,646 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-01-30 00:09:21,646 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-30 00:09:21,646 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-01-30 00:09:21,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-30 00:09:21,647 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:21,647 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:21,647 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-30 00:09:21,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1352423082, now seen corresponding path program 1 times [2018-01-30 00:09:21,648 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:21,648 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:21,650 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:21,650 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:21,650 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:21,670 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:09:21,737 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:21,737 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-30 00:09:21,739 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-30 00:09:21,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-30 00:09:21,739 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-30 00:09:21,739 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 7 states. [2018-01-30 00:09:21,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:21,854 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-01-30 00:09:21,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 00:09:21,855 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-01-30 00:09:21,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:21,856 INFO L225 Difference]: With dead ends: 37 [2018-01-30 00:09:21,856 INFO L226 Difference]: Without dead ends: 36 [2018-01-30 00:09:21,857 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-30 00:09:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-30 00:09:21,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-01-30 00:09:21,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-30 00:09:21,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2018-01-30 00:09:21,864 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 27 [2018-01-30 00:09:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:21,864 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2018-01-30 00:09:21,864 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-30 00:09:21,864 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2018-01-30 00:09:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-30 00:09:21,865 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:21,865 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:21,866 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-30 00:09:21,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1890992532, now seen corresponding path program 1 times [2018-01-30 00:09:21,866 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:21,866 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:21,868 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:21,868 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:21,868 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:21,883 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:09:21,931 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:21,931 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 00:09:21,931 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-30 00:09:21,931 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-30 00:09:21,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 00:09:21,932 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 3 states. [2018-01-30 00:09:21,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:21,969 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2018-01-30 00:09:21,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-30 00:09:21,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-01-30 00:09:21,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:21,973 INFO L225 Difference]: With dead ends: 52 [2018-01-30 00:09:21,973 INFO L226 Difference]: Without dead ends: 48 [2018-01-30 00:09:21,973 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 00:09:21,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-01-30 00:09:21,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-01-30 00:09:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-30 00:09:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2018-01-30 00:09:21,985 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 31 [2018-01-30 00:09:21,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:21,985 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2018-01-30 00:09:21,985 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-30 00:09:21,985 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2018-01-30 00:09:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-30 00:09:21,987 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:21,987 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:09:21,987 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, g5Err1RequiresViolation, g5Err0RequiresViolation]=== [2018-01-30 00:09:21,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1650521388, now seen corresponding path program 1 times [2018-01-30 00:09:21,988 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:21,988 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:21,989 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:21,989 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:21,989 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:09:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:09:22,044 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-30 00:09:22,056 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-30 00:09:22,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:09:22 BoogieIcfgContainer [2018-01-30 00:09:22,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 00:09:22,069 INFO L168 Benchmark]: Toolchain (without parser) took 1451.72 ms. Allocated memory was 305.7 MB in the beginning and 462.4 MB in the end (delta: 156.8 MB). Free memory was 264.7 MB in the beginning and 390.4 MB in the end (delta: -125.7 MB). Peak memory consumption was 31.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:22,070 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 305.7 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:09:22,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.26 ms. Allocated memory is still 305.7 MB. Free memory was 264.7 MB in the beginning and 250.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:22,070 INFO L168 Benchmark]: Boogie Preprocessor took 34.59 ms. Allocated memory is still 305.7 MB. Free memory is still 250.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:09:22,070 INFO L168 Benchmark]: RCFGBuilder took 178.05 ms. Allocated memory is still 305.7 MB. Free memory was 250.7 MB in the beginning and 236.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:22,071 INFO L168 Benchmark]: TraceAbstraction took 1018.63 ms. Allocated memory was 305.7 MB in the beginning and 462.4 MB in the end (delta: 156.8 MB). Free memory was 234.2 MB in the beginning and 390.4 MB in the end (delta: -156.2 MB). Peak memory consumption was 515.9 kB. Max. memory is 5.3 GB. [2018-01-30 00:09:22,072 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 305.7 MB. Free memory is still 270.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 211.26 ms. Allocated memory is still 305.7 MB. Free memory was 264.7 MB in the beginning and 250.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.59 ms. Allocated memory is still 305.7 MB. Free memory is still 250.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 178.05 ms. Allocated memory is still 305.7 MB. Free memory was 250.7 MB in the beginning and 236.2 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1018.63 ms. Allocated memory was 305.7 MB in the beginning and 462.4 MB in the end (delta: 156.8 MB). Free memory was 234.2 MB in the beginning and 390.4 MB in the end (delta: -156.2 MB). Peak memory consumption was 515.9 kB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1449]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1449. Possible FailurePath: [L1450] CALL entry_point() [L1445] CALL, EXPR f5() [L1434] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() VAL [\old(size)=4, __VERIFIER_nondet_int()=1, size=4] [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={6:0}, size=4] [L1074] RET return malloc(size); VAL [\old(size)=4, \result={6:0}, malloc(size)={6:0}, size=4] [L1434] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={6:0}] [L1434] int *p = (int *)ldv_malloc(sizeof(int)); VAL [ldv_malloc(sizeof(int))={6:0}, p={6:0}] [L1435] RET return 0; VAL [\result={0:0}, p={6:0}] [L1445] EXPR f5() VAL [f5()={0:0}] [L1445] int *p = f5(); VAL [f5()={0:0}, p={0:0}] [L1446] CALL g5(p) VAL [p={0:0}] [L1439] COND FALSE !(\read(*p)) VAL [p={0:0}, p={0:0}] [L1446] FCALL g5(p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 41 locations, 3 error locations. UNSAFE Result, 0.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 99 SDtfs, 26 SDslu, 322 SDs, 0 SdLazy, 68 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 4584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-30_00-09-22-078.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test5_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_00-09-22-078.csv Received shutdown request...