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_test9_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 00:09:51,213 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:09:51,215 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:09:51,229 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:09:51,229 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:09:51,230 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:09:51,231 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:09:51,233 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:09:51,235 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:09:51,235 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:09:51,236 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 00:09:51,236 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 00:09:51,237 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 00:09:51,239 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 00:09:51,240 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 00:09:51,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 00:09:51,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 00:09:51,246 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 00:09:51,247 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 00:09:51,248 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 00:09:51,251 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-30 00:09:51,255 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 00:09:51,256 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 00:09:51,256 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 00:09:51,266 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:09:51,266 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:09:51,267 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:09:51,267 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:09:51,268 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:09:51,268 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:09:51,268 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:09:51,269 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:09:51,269 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:09:51,269 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 00:09:51,269 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:09:51,270 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:09:51,270 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:09:51,270 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 00:09:51,270 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 00:09:51,270 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 00:09:51,270 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:09:51,271 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:09:51,271 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:09:51,271 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:09:51,271 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:09:51,272 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:09:51,272 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:09:51,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:09:51,272 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:09:51,272 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:09:51,273 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:09:51,273 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:09:51,273 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:09:51,273 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:09:51,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:09:51,274 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:09:51,274 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:09:51,275 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:09:51,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:09:51,323 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:09:51,327 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:09:51,328 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:09:51,329 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:09:51,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_2_false-valid-memtrack_true-termination.i [2018-01-30 00:09:51,512 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:09:51,518 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-30 00:09:51,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:09:51,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:09:51,525 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:09:51,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca3c60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51, skipping insertion in model container [2018-01-30 00:09:51,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,542 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:09:51,591 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:09:51,696 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:09:51,708 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:09:51,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51 WrapperNode [2018-01-30 00:09:51,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:09:51,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:09:51,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:09:51,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:09:51,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (1/1) ... [2018-01-30 00:09:51,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:09:51,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:09:51,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:09:51,753 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:09:51,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (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 00:09:51,807 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:09:51,808 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:09:51,808 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-30 00:09:51,808 INFO L136 BoogieDeclarations]: Found implementation of procedure probe_9 [2018-01-30 00:09:51,808 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-30 00:09:51,808 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:09:51,808 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 00:09:51,808 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 00:09:51,809 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 00:09:51,809 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-30 00:09:51,809 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:09:51,809 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-30 00:09:51,809 INFO L128 BoogieDeclarations]: Found specification of procedure probe_9 [2018-01-30 00:09:51,809 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-30 00:09:51,810 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:09:51,810 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:09:51,810 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:09:51,986 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:09:51,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:09:51 BoogieIcfgContainer [2018-01-30 00:09:51,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:09:51,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 00:09:51,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 00:09:51,990 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 00:09:51,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:09:51" (1/3) ... [2018-01-30 00:09:51,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ec67a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:09:51, skipping insertion in model container [2018-01-30 00:09:51,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:09:51" (2/3) ... [2018-01-30 00:09:51,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ec67a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:09:51, skipping insertion in model container [2018-01-30 00:09:51,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:09:51" (3/3) ... [2018-01-30 00:09:51,992 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test9_2_false-valid-memtrack_true-termination.i [2018-01-30 00:09:51,999 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 00:09:52,004 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-01-30 00:09:52,050 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 00:09:52,050 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 00:09:52,050 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 00:09:52,050 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 00:09:52,050 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 00:09:52,050 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 00:09:52,050 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 00:09:52,051 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 00:09:52,051 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 00:09:52,065 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-01-30 00:09:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-30 00:09:52,070 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:52,071 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] [2018-01-30 00:09:52,071 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-30 00:09:52,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1566139477, now seen corresponding path program 1 times [2018-01-30 00:09:52,077 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:52,077 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:52,132 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:52,133 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:52,133 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:52,187 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:52,372 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 00:09:52,375 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:52,375 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 00:09:52,377 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:09:52,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:09:52,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:09:52,450 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 5 states. [2018-01-30 00:09:52,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:52,554 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2018-01-30 00:09:52,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:09:52,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-01-30 00:09:52,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:52,565 INFO L225 Difference]: With dead ends: 60 [2018-01-30 00:09:52,565 INFO L226 Difference]: Without dead ends: 44 [2018-01-30 00:09:52,567 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-01-30 00:09:52,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-01-30 00:09:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-01-30 00:09:52,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-01-30 00:09:52,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2018-01-30 00:09:52,596 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 29 [2018-01-30 00:09:52,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:52,596 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2018-01-30 00:09:52,596 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:09:52,596 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2018-01-30 00:09:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-30 00:09:52,597 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:52,597 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] [2018-01-30 00:09:52,597 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-30 00:09:52,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1853170837, now seen corresponding path program 1 times [2018-01-30 00:09:52,598 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:52,598 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:52,599 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:52,599 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:52,599 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:09:52,622 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:09:52,670 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 00:09:52,670 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:09:52,670 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 00:09:52,672 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-30 00:09:52,672 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-30 00:09:52,673 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 00:09:52,673 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 3 states. [2018-01-30 00:09:52,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:09:52,745 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-01-30 00:09:52,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-30 00:09:52,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-01-30 00:09:52,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:09:52,746 INFO L225 Difference]: With dead ends: 49 [2018-01-30 00:09:52,747 INFO L226 Difference]: Without dead ends: 32 [2018-01-30 00:09:52,748 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 00:09:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-01-30 00:09:52,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-01-30 00:09:52,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-01-30 00:09:52,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-01-30 00:09:52,754 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 29 [2018-01-30 00:09:52,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:09:52,755 INFO L432 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-01-30 00:09:52,755 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-30 00:09:52,755 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-01-30 00:09:52,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-30 00:09:52,756 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:09:52,756 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] [2018-01-30 00:09:52,756 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation]=== [2018-01-30 00:09:52,756 INFO L82 PathProgramCache]: Analyzing trace with hash 2055774596, now seen corresponding path program 1 times [2018-01-30 00:09:52,756 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:09:52,756 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:09:52,758 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:52,758 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:09:52,759 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:09:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:09:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:09:52,830 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-30 00:09:52,847 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-30 00:09:52,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:09:52 BoogieIcfgContainer [2018-01-30 00:09:52,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 00:09:52,866 INFO L168 Benchmark]: Toolchain (without parser) took 1353.21 ms. Allocated memory was 303.0 MB in the beginning and 459.8 MB in the end (delta: 156.8 MB). Free memory was 262.1 MB in the beginning and 405.7 MB in the end (delta: -143.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:52,867 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 303.0 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:09:52,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.24 ms. Allocated memory is still 303.0 MB. Free memory was 262.1 MB in the beginning and 249.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:52,867 INFO L168 Benchmark]: Boogie Preprocessor took 38.15 ms. Allocated memory is still 303.0 MB. Free memory was 249.1 MB in the beginning and 248.1 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. [2018-01-30 00:09:52,868 INFO L168 Benchmark]: RCFGBuilder took 233.52 ms. Allocated memory is still 303.0 MB. Free memory was 248.1 MB in the beginning and 234.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. [2018-01-30 00:09:52,868 INFO L168 Benchmark]: TraceAbstraction took 877.55 ms. Allocated memory was 303.0 MB in the beginning and 459.8 MB in the end (delta: 156.8 MB). Free memory was 234.2 MB in the beginning and 405.7 MB in the end (delta: -171.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:09:52,870 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 303.0 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 195.24 ms. Allocated memory is still 303.0 MB. Free memory was 262.1 MB in the beginning and 249.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.15 ms. Allocated memory is still 303.0 MB. Free memory was 249.1 MB in the beginning and 248.1 MB in the end (delta: 996.4 kB). Peak memory consumption was 996.4 kB. Max. memory is 5.3 GB. * RCFGBuilder took 233.52 ms. Allocated memory is still 303.0 MB. Free memory was 248.1 MB in the beginning and 234.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 877.55 ms. Allocated memory was 303.0 MB in the beginning and 459.8 MB in the end (delta: 156.8 MB). Free memory was 234.2 MB in the beginning and 405.7 MB in the end (delta: -171.4 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) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1450]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1450. Possible FailurePath: IVAL [\old(a9)=6, \old(a9)=8, a9={8:6}] [L1434] int *a9; VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1451] CALL entry_point() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1445] CALL probe_9() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1437] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}] [L1073] COND TRUE __VERIFIER_nondet_int() VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, __VERIFIER_nondet_int()=1, a9={0:0}, size=4] [L1074] EXPR, FCALL malloc(size) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}, malloc(size)={7:0}, size=4] [L1074] RET return malloc(size); VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, \result={7:0}, a9={0:0}, malloc(size)={7:0}, size=4] [L1437] EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, ldv_malloc(sizeof(int))={7:0}] [L1437] a9 = (int *)ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, a9={7:0}, ldv_malloc(sizeof(int))={7:0}] [L1438] COND TRUE \read(*a9) VAL [\old(a9)=0, \old(a9)=0, a9={7:0}] [L1439] RET return 0; VAL [\old(a9)=0, \old(a9)=0, \result=0, a9={7:0}] [L1445] probe_9() VAL [\old(a9)=0, \old(a9)=0, a9={7:0}, probe_9()=0] [L1447] RET a9 = 0 VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] [L1451] entry_point() VAL [\old(a9)=0, \old(a9)=0, a9={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 33 SDslu, 94 SDs, 0 SdLazy, 21 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=1, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 3640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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_test9_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-30_00-09-52-877.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_00-09-52-877.csv Received shutdown request...