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/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_2_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:30:11,169 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:30:11,171 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:30:11,186 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:30:11,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:30:11,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:30:11,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:30:11,191 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:30:11,193 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:30:11,194 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:30:11,195 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:30:11,195 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:30:11,196 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:30:11,198 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:30:11,199 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:30:11,202 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:30:11,204 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:30:11,206 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:30:11,207 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:30:11,209 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:30:11,211 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:30:11,217 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_imprecise.epf [2018-01-24 16:30:11,226 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:30:11,226 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:30:11,227 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:30:11,227 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:30:11,227 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:30:11,227 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:30:11,227 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:30:11,227 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:30:11,228 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:30:11,228 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:30:11,228 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:30:11,228 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:30:11,228 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:30:11,229 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:30:11,229 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:30:11,229 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:30:11,229 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:30:11,229 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:30:11,229 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:30:11,229 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:30:11,229 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:30:11,230 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:30:11,230 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:30:11,230 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:30:11,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:30:11,230 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:30:11,231 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:30:11,231 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:30:11,231 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:30:11,231 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:30:11,231 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:30:11,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:30:11,231 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:30:11,232 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:30:11,232 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:30:11,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:30:11,277 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:30:11,280 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:30:11,282 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:30:11,282 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:30:11,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_2_false-valid-free.i [2018-01-24 16:30:11,495 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:30:11,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:30:11,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:30:11,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:30:11,507 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:30:11,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d434187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11, skipping insertion in model container [2018-01-24 16:30:11,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,526 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:30:11,577 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:30:11,693 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:30:11,709 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:30:11,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11 WrapperNode [2018-01-24 16:30:11,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:30:11,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:30:11,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:30:11,720 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:30:11,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:11,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:30:11,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:30:11,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:30:11,755 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:30:11,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:11" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:30:11,807 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:30:11,807 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:30:11,807 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 16:30:11,807 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_8 [2018-01-24 16:30:11,807 INFO L136 BoogieDeclarations]: Found implementation of procedure free_8 [2018-01-24 16:30:11,807 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 16:30:11,807 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_8 [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure free_8 [2018-01-24 16:30:11,808 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 16:30:11,809 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:30:11,809 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:30:11,809 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:30:11,952 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:30:11,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:30:11 BoogieIcfgContainer [2018-01-24 16:30:11,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:30:11,953 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:30:11,953 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:30:11,954 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:30:11,954 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:30:11" (1/1) ... [2018-01-24 16:30:12,002 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:30:12,322 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:30:12,342 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:30:12,346 INFO L268 AbstractInterpreter]: Visited 35 different actions 58 times. Merged at 9 different actions 9 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 21 variables. [2018-01-24 16:30:12,348 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:30:12,349 INFO L168 Benchmark]: Toolchain (without parser) took 853.34 ms. Allocated memory is still 305.7 MB. Free memory was 264.7 MB in the beginning and 201.8 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:12,350 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 305.7 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:30:12,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.48 ms. Allocated memory is still 305.7 MB. Free memory was 264.7 MB in the beginning and 252.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:12,351 INFO L168 Benchmark]: Boogie Preprocessor took 35.41 ms. Allocated memory is still 305.7 MB. Free memory was 252.4 MB in the beginning and 250.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:12,352 INFO L168 Benchmark]: RCFGBuilder took 197.93 ms. Allocated memory is still 305.7 MB. Free memory was 250.4 MB in the beginning and 236.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:12,353 INFO L168 Benchmark]: Abstract Interpretation took 394.92 ms. Allocated memory is still 305.7 MB. Free memory was 236.8 MB in the beginning and 201.8 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:12,356 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 305.7 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 217.48 ms. Allocated memory is still 305.7 MB. Free memory was 264.7 MB in the beginning and 252.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.41 ms. Allocated memory is still 305.7 MB. Free memory was 252.4 MB in the beginning and 250.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 197.93 ms. Allocated memory is still 305.7 MB. Free memory was 250.4 MB in the beginning and 236.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 394.92 ms. Allocated memory is still 305.7 MB. Free memory was 236.8 MB in the beginning and 201.8 MB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 31 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 180 LocStat_NO_SUPPORTING_DISEQUALITIES : 13 LocStat_NO_DISJUNCTIONS : -62 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 47 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 79 TransStat_NO_SUPPORTING_DISEQUALITIES : 11 TransStat_NO_DISJUNCTIONS : 51 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.045078 RENAME_VARIABLES(MILLISECONDS) : 0.136661 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.002160 PROJECTAWAY(MILLISECONDS) : 0.058620 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001404 DISJOIN(MILLISECONDS) : 0.669440 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.170231 ADD_EQUALITY(MILLISECONDS) : 0.038198 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.023674 #CONJOIN_DISJUNCTIVE : 100 #RENAME_VARIABLES : 257 #UNFREEZE : 0 #CONJOIN : 267 #PROJECTAWAY : 180 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 21 #RENAME_VARIABLES_DISJUNCTIVE : 245 #ADD_EQUALITY : 71 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 9 - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L1434] int *a8; [L1453] CALL entry_point() [L1446] CALL alloc_8() [L1437] CALL, EXPR ldv_malloc(sizeof(int)) [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) [L1074] RET return malloc(size); [L1437] EXPR ldv_malloc(sizeof(int)) [L1437] RET a8 = (int *)ldv_malloc(sizeof(int)) [L1446] alloc_8() [L1447] CALL free_8() [L1441] COND TRUE \read(*a8) [L1441] FCALL free(a8) [L1448] CALL free_8() [L1441] COND TRUE \read(*a8) [L1441] FCALL free(a8) - UnprovableResult [Line: 1452]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: abstract domain could reach this error location. Possible FailurePath: [L1434] int *a8; [L1453] CALL entry_point() [L1446] CALL alloc_8() [L1437] CALL, EXPR ldv_malloc(sizeof(int)) [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; [L1437] EXPR ldv_malloc(sizeof(int)) [L1437] RET a8 = (int *)ldv_malloc(sizeof(int)) [L1446] alloc_8() [L1447] CALL free_8() [L1441] COND FALSE, RET !(\read(*a8)) [L1447] free_8() [L1448] CALL free_8() [L1441] COND FALSE, RET !(\read(*a8)) [L1448] free_8() [L1449] RET a8 = 0 [L1453] entry_point() - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) 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_test8_2_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-30-12-370.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test8_2_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-30-12-370.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test8_2_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-30-12-370.csv Received shutdown request...