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_test1_false-valid-free.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:30:07,074 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:30:07,077 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:30:07,090 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:30:07,091 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:30:07,092 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:30:07,093 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:30:07,095 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:30:07,097 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:30:07,097 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:30:07,098 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:30:07,098 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:30:07,099 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:30:07,100 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:30:07,100 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:30:07,103 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:30:07,105 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:30:07,108 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:30:07,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:30:07,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:30:07,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 16:30:07,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 16:30:07,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 16:30:07,115 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 16:30:07,116 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 16:30:07,117 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 16:30:07,117 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 16:30:07,118 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 16:30:07,118 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 16:30:07,118 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:30:07,119 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:30:07,119 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 16:30:07,129 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:30:07,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:30:07,130 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:30:07,130 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:30:07,131 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:30:07,131 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:30:07,131 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:30:07,131 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:30:07,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:30:07,132 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:30:07,132 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:30:07,133 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:30:07,133 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:30:07,133 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:30:07,133 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:30:07,133 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:30:07,134 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:30:07,134 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:30:07,134 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:30:07,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:30:07,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:30:07,135 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:30:07,135 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:30:07,135 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:30:07,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:30:07,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:30:07,136 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:30:07,136 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:30:07,136 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:30:07,136 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:30:07,136 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:30:07,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:30:07,137 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:30:07,138 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:30:07,138 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:30:07,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:30:07,186 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:30:07,190 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:30:07,191 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:30:07,192 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:30:07,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-free.i [2018-01-24 16:30:07,404 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:30:07,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:30:07,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:30:07,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:30:07,419 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:30:07,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c336041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07, skipping insertion in model container [2018-01-24 16:30:07,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,442 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:30:07,495 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:30:07,612 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:30:07,625 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:30:07,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07 WrapperNode [2018-01-24 16:30:07,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:30:07,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:30:07,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:30:07,636 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:30:07,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:30:07,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:30:07,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:30:07,684 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:30:07,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:07" (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 16:30:07,750 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:30:07,751 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:30:07,751 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 16:30:07,751 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 16:30:07,751 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:30:07,751 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:30:07,751 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:30:07,752 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:30:07,752 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:30:07,752 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:30:07,752 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:30:07,752 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 16:30:07,752 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 16:30:07,753 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:30:07,753 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:30:07,753 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:30:07,911 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:30:07,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:30:07 BoogieIcfgContainer [2018-01-24 16:30:07,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:30:07,912 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:30:07,912 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:30:07,913 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:30:07,913 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:30:07" (1/1) ... [2018-01-24 16:30:07,965 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:30:08,273 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:30:08,292 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:30:08,296 INFO L268 AbstractInterpreter]: Visited 27 different actions 36 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-01-24 16:30:08,298 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:30:08,299 INFO L168 Benchmark]: Toolchain (without parser) took 893.85 ms. Allocated memory is still 307.2 MB. Free memory was 266.1 MB in the beginning and 217.0 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:08,300 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 307.2 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:30:08,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.53 ms. Allocated memory is still 307.2 MB. Free memory was 266.1 MB in the beginning and 253.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:08,301 INFO L168 Benchmark]: Boogie Preprocessor took 46.90 ms. Allocated memory is still 307.2 MB. Free memory was 253.9 MB in the beginning and 251.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:08,302 INFO L168 Benchmark]: RCFGBuilder took 228.45 ms. Allocated memory is still 307.2 MB. Free memory was 251.9 MB in the beginning and 239.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:08,302 INFO L168 Benchmark]: Abstract Interpretation took 385.84 ms. Allocated memory is still 307.2 MB. Free memory was 239.0 MB in the beginning and 217.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:08,305 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 307.2 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 221.53 ms. Allocated memory is still 307.2 MB. Free memory was 266.1 MB in the beginning and 253.9 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 46.90 ms. Allocated memory is still 307.2 MB. Free memory was 253.9 MB in the beginning and 251.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 228.45 ms. Allocated memory is still 307.2 MB. Free memory was 251.9 MB in the beginning and 239.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 385.84 ms. Allocated memory is still 307.2 MB. Free memory was 239.0 MB in the beginning and 217.0 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 23 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 103 LocStat_NO_SUPPORTING_DISEQUALITIES : 6 LocStat_NO_DISJUNCTIONS : -46 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 35 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 65 TransStat_NO_SUPPORTING_DISEQUALITIES : 14 TransStat_NO_DISJUNCTIONS : 41 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.052439 RENAME_VARIABLES(MILLISECONDS) : 0.130402 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.002965 PROJECTAWAY(MILLISECONDS) : 0.079096 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001847 DISJOIN(MILLISECONDS) : 0.784597 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.169051 ADD_EQUALITY(MILLISECONDS) : 0.047005 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.022774 #CONJOIN_DISJUNCTIVE : 64 #RENAME_VARIABLES : 134 #UNFREEZE : 0 #CONJOIN : 168 #PROJECTAWAY : 101 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 5 #RENAME_VARIABLES_DISJUNCTIVE : 116 #ADD_EQUALITY : 49 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 11 - 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: [L1441] CALL entry_point() [L1435] CALL, EXPR ldv_malloc(sizeof(int)) [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) [L1074] RET return malloc(size); [L1435] EXPR ldv_malloc(sizeof(int)) [L1435] int *p = (int *)ldv_malloc(sizeof(int)); [L1436] FCALL free(p) [L1437] FCALL free(p) - UnprovableResult [Line: 1440]: 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: [L1441] CALL entry_point() [L1435] CALL, EXPR ldv_malloc(sizeof(int)) [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; [L1435] EXPR ldv_malloc(sizeof(int)) [L1435] int *p = (int *)ldv_malloc(sizeof(int)); [L1436] FCALL free(p) [L1437] FCALL free(p) - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - 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_test1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-30-08-319.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-30-08-319.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-free.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-30-08-319.csv Received shutdown request...