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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:51:26,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:51:26,197 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:51:26,209 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:51:26,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:51:26,210 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:51:26,211 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:51:26,212 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:51:26,214 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:51:26,215 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:51:26,215 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:51:26,216 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:51:26,216 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:51:26,217 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:51:26,218 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:51:26,220 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:51:26,221 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:51:26,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:51:26,223 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:51:26,224 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:51:26,226 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:51:26,230 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:51:26,231 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:51:26,231 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 04:51:26,241 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:51:26,241 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:51:26,242 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:51:26,242 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:51:26,242 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:51:26,243 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:51:26,243 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:51:26,243 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:51:26,243 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:51:26,243 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:51:26,243 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:51:26,243 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:51:26,243 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:51:26,243 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:51:26,244 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:51:26,244 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:51:26,244 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:51:26,244 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:51:26,244 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:51:26,244 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:51:26,244 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:51:26,244 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:51:26,244 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:51:26,245 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:51:26,245 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:51:26,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:51:26,283 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:51:26,285 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:51:26,286 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:51:26,287 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:51:26,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test9_2_false-valid-memtrack_true-termination.i [2018-02-04 04:51:26,413 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:51:26,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:51:26,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:51:26,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:51:26,419 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:51:26,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc89e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26, skipping insertion in model container [2018-02-04 04:51:26,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,431 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:51:26,465 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:51:26,546 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:51:26,558 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:51:26,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26 WrapperNode [2018-02-04 04:51:26,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:51:26,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:51:26,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:51:26,565 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:51:26,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (1/1) ... [2018-02-04 04:51:26,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:51:26,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:51:26,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:51:26,591 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:51:26,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 04:51:26,628 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:51:26,628 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:51:26,628 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:51:26,628 INFO L136 BoogieDeclarations]: Found implementation of procedure probe_9 [2018-02-04 04:51:26,629 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:51:26,629 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:51:26,629 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:51:26,629 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:51:26,629 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:51:26,629 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:51:26,629 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:51:26,629 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:51:26,630 INFO L128 BoogieDeclarations]: Found specification of procedure probe_9 [2018-02-04 04:51:26,630 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:51:26,630 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:51:26,630 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:51:26,630 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:51:26,728 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:51:26,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:51:26 BoogieIcfgContainer [2018-02-04 04:51:26,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:51:26,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:51:26,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:51:26,731 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:51:26,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:51:26" (1/3) ... [2018-02-04 04:51:26,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46013901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:51:26, skipping insertion in model container [2018-02-04 04:51:26,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:51:26" (2/3) ... [2018-02-04 04:51:26,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46013901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:51:26, skipping insertion in model container [2018-02-04 04:51:26,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:51:26" (3/3) ... [2018-02-04 04:51:26,734 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test9_2_false-valid-memtrack_true-termination.i [2018-02-04 04:51:26,739 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:51:26,744 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-02-04 04:51:26,773 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:51:26,773 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:51:26,773 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:51:26,773 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:51:26,773 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:51:26,773 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:51:26,773 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:51:26,773 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:51:26,774 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:51:26,784 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-02-04 04:51:26,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:51:26,793 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:51:26,794 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:51:26,794 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-02-04 04:51:26,798 INFO L82 PathProgramCache]: Analyzing trace with hash 107445153, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:51:26,809 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:51:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:51:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:51:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:51:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:51:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:51:27,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:51:27,092 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:51:27,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 04:51:27,093 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:51:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:51:27,093 INFO L182 omatonBuilderFactory]: Interpolants [48#(and (= ~a9.base |old(~a9.base)|) (= |#valid| |old(#valid)|) (= ~a9.offset |old(~a9.offset)|) (= |old(#length)| |#length|)), 64#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 65#(and (= 0 |ldv_malloc_#res.offset|) (= 0 |ldv_malloc_#res.base|)), 29#true, 30#false, 62#(and (= 0 |probe_9_#t~ret2.offset|) (= 0 |probe_9_#t~ret2.base|)), 47#(and (= ~a9.base |old(~a9.base)|) (= |#valid| |old(#valid)|) (= ~a9.offset |old(~a9.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 63#(and (= ~a9.base 0) (= ~a9.offset 0))] [2018-02-04 04:51:27,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:51:27,094 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:51:27,101 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:51:27,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:51:27,103 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 8 states. [2018-02-04 04:51:27,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:51:27,334 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-02-04 04:51:27,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:51:27,335 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-02-04 04:51:27,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:51:27,342 INFO L225 Difference]: With dead ends: 40 [2018-02-04 04:51:27,343 INFO L226 Difference]: Without dead ends: 26 [2018-02-04 04:51:27,344 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:51:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-02-04 04:51:27,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2018-02-04 04:51:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-02-04 04:51:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-02-04 04:51:27,366 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 20 [2018-02-04 04:51:27,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:51:27,367 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-02-04 04:51:27,367 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:51:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-02-04 04:51:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:51:27,368 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:51:27,368 INFO L351 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] [2018-02-04 04:51:27,368 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-02-04 04:51:27,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1491142881, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:51:27,371 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:51:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:51:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 04:51:27,421 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 04:51:27,431 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 04:51:27,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 04:51:27 BoogieIcfgContainer [2018-02-04 04:51:27,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 04:51:27,443 INFO L168 Benchmark]: Toolchain (without parser) took 1029.87 ms. Allocated memory is still 400.6 MB. Free memory was 357.2 MB in the beginning and 250.6 MB in the end (delta: 106.6 MB). Peak memory consumption was 106.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:51:27,444 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 400.6 MB. Free memory is still 363.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:51:27,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.03 ms. Allocated memory is still 400.6 MB. Free memory was 357.2 MB in the beginning and 345.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:51:27,445 INFO L168 Benchmark]: Boogie Preprocessor took 25.28 ms. Allocated memory is still 400.6 MB. Free memory was 344.0 MB in the beginning and 342.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:51:27,445 INFO L168 Benchmark]: RCFGBuilder took 138.07 ms. Allocated memory is still 400.6 MB. Free memory was 342.7 MB in the beginning and 328.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:51:27,446 INFO L168 Benchmark]: TraceAbstraction took 713.90 ms. Allocated memory is still 400.6 MB. Free memory was 328.1 MB in the beginning and 250.6 MB in the end (delta: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:51:27,448 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 400.6 MB. Free memory is still 363.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 150.03 ms. Allocated memory is still 400.6 MB. Free memory was 357.2 MB in the beginning and 345.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.28 ms. Allocated memory is still 400.6 MB. Free memory was 344.0 MB in the beginning and 342.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 138.07 ms. Allocated memory is still 400.6 MB. Free memory was 342.7 MB in the beginning and 328.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 713.90 ms. Allocated memory is still 400.6 MB. Free memory was 328.1 MB in the beginning and 250.6 MB in the end (delta: 77.5 MB). Peak memory consumption was 77.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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: [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() [L1074] EXPR, FCALL malloc(size) VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, a9={0:0}, malloc(size)={9:0}, size=4] [L1074] RET return malloc(size); VAL [\old(a9)=0, \old(a9)=0, \old(size)=4, \result={9:0}, a9={0:0}, malloc(size)={9:0}, size=4] [L1437] EXPR ldv_malloc(sizeof(int)) VAL [\old(a9)=0, \old(a9)=0, a9={0:0}, ldv_malloc(sizeof(int))={9:0}] [L1437] a9 = (int *)ldv_malloc(sizeof(int)) [L1438] COND TRUE \read(*a9) [L1439] RET return 0; VAL [\old(a9)=0, \old(a9)=0, \result=0, a9={9:0}] [L1445] probe_9() VAL [\old(a9)=0, \old(a9)=0, a9={9:0}, 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, 26 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 38 SDslu, 43 SDs, 0 SdLazy, 90 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1672 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-51-27-503.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test9_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_04-51-27-503.csv Received shutdown request...