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_precise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_2_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 22:27:00,992 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 22:27:00,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 22:27:01,007 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 22:27:01,008 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 22:27:01,009 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 22:27:01,010 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 22:27:01,011 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 22:27:01,013 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 22:27:01,014 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 22:27:01,014 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 22:27:01,014 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 22:27:01,015 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 22:27:01,017 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 22:27:01,017 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 22:27:01,020 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 22:27:01,022 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 22:27:01,024 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 22:27:01,025 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 22:27:01,026 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 22:27:01,029 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 22:27:01,034 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_precise.epf [2018-01-24 22:27:01,044 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 22:27:01,044 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 22:27:01,045 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 22:27:01,046 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 22:27:01,046 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 22:27:01,046 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 22:27:01,046 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 22:27:01,046 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 22:27:01,047 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 22:27:01,047 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 22:27:01,047 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 22:27:01,048 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 22:27:01,048 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 22:27:01,048 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 22:27:01,048 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 22:27:01,048 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 22:27:01,049 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 22:27:01,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 22:27:01,049 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 22:27:01,049 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 22:27:01,049 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 22:27:01,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 22:27:01,050 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 22:27:01,050 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 22:27:01,050 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 22:27:01,050 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 22:27:01,051 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 22:27:01,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 22:27:01,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 22:27:01,051 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 22:27:01,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 22:27:01,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 22:27:01,052 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 22:27:01,053 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 22:27:01,053 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 22:27:01,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 22:27:01,100 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 22:27:01,105 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 22:27:01,106 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 22:27:01,107 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 22:27:01,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test8_2_false-valid-free.i [2018-01-24 22:27:01,296 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 22:27:01,301 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 22:27:01,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 22:27:01,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 22:27:01,307 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 22:27:01,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c105265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01, skipping insertion in model container [2018-01-24 22:27:01,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,325 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 22:27:01,373 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 22:27:01,485 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 22:27:01,500 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 22:27:01,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01 WrapperNode [2018-01-24 22:27:01,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 22:27:01,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 22:27:01,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 22:27:01,509 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 22:27:01,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 22:27:01,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 22:27:01,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 22:27:01,543 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 22:27:01,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 10:27:01" (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 22:27:01,590 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 22:27:01,590 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 22:27:01,590 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 22:27:01,590 INFO L136 BoogieDeclarations]: Found implementation of procedure alloc_8 [2018-01-24 22:27:01,590 INFO L136 BoogieDeclarations]: Found implementation of procedure free_8 [2018-01-24 22:27:01,590 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 22:27:01,591 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure alloc_8 [2018-01-24 22:27:01,591 INFO L128 BoogieDeclarations]: Found specification of procedure free_8 [2018-01-24 22:27:01,592 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 22:27:01,592 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 22:27:01,592 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 22:27:01,592 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 22:27:01,717 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 22:27:01,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 10:27:01 BoogieIcfgContainer [2018-01-24 22:27:01,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 22:27:01,718 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 22:27:01,719 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 22:27:01,719 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 22:27:01,719 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 10:27:01" (1/1) ... [2018-01-24 22:27:01,767 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 22:27:02,626 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 22:27:02,638 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 22:27:02,641 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 22:27:02,643 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 22:27:02,644 INFO L168 Benchmark]: Toolchain (without parser) took 1347.09 ms. Allocated memory was 302.5 MB in the beginning and 369.1 MB in the end (delta: 66.6 MB). Free memory was 261.4 MB in the beginning and 232.8 MB in the end (delta: 28.6 MB). Peak memory consumption was 95.2 MB. Max. memory is 5.3 GB. [2018-01-24 22:27:02,645 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 302.5 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 22:27:02,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.44 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 248.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-24 22:27:02,646 INFO L168 Benchmark]: Boogie Preprocessor took 32.98 ms. Allocated memory is still 302.5 MB. Free memory was 248.3 MB in the beginning and 247.3 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-01-24 22:27:02,647 INFO L168 Benchmark]: RCFGBuilder took 175.78 ms. Allocated memory is still 302.5 MB. Free memory was 247.3 MB in the beginning and 233.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. [2018-01-24 22:27:02,647 INFO L168 Benchmark]: Abstract Interpretation took 924.54 ms. Allocated memory was 302.5 MB in the beginning and 369.1 MB in the end (delta: 66.6 MB). Free memory was 233.2 MB in the beginning and 232.8 MB in the end (delta: 351.1 kB). Peak memory consumption was 66.9 MB. Max. memory is 5.3 GB. [2018-01-24 22:27:02,650 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 302.5 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 206.44 ms. Allocated memory is still 302.5 MB. Free memory was 261.4 MB in the beginning and 248.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.98 ms. Allocated memory is still 302.5 MB. Free memory was 248.3 MB in the beginning and 247.3 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 175.78 ms. Allocated memory is still 302.5 MB. Free memory was 247.3 MB in the beginning and 233.2 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 924.54 ms. Allocated memory was 302.5 MB in the beginning and 369.1 MB in the end (delta: 66.6 MB). Free memory was 233.2 MB in the beginning and 232.8 MB in the end (delta: 351.1 kB). Peak memory consumption was 66.9 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 : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 190 LocStat_NO_SUPPORTING_DISEQUALITIES : 13 LocStat_NO_DISJUNCTIONS : -62 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 47 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 79 TransStat_NO_SUPPORTING_DISEQUALITIES : 11 TransStat_NO_DISJUNCTIONS : 51 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.044417 RENAME_VARIABLES(MILLISECONDS) : 0.080663 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.001457 PROJECTAWAY(MILLISECONDS) : 0.045720 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.084454 DISJOIN(MILLISECONDS) : 0.518073 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.109927 ADD_EQUALITY(MILLISECONDS) : 0.027924 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.010558 #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_precise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_22-27-02-664.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_precise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_22-27-02-664.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_precise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_22-27-02-664.csv Received shutdown request...