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_test18_2_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:30:30,539 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:30:30,541 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:30:30,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:30:30,553 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:30:30,554 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:30:30,555 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:30:30,556 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:30:30,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:30:30,558 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:30:30,559 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:30:30,559 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:30:30,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:30:30,561 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:30:30,561 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:30:30,564 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:30:30,566 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:30:30,568 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:30:30,569 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:30:30,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:30:30,573 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:30:30,579 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 16:30:30,588 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:30:30,589 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:30:30,589 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:30:30,590 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:30:30,590 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:30:30,590 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:30:30,590 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:30:30,590 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:30:30,591 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:30:30,591 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:30:30,591 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:30:30,592 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:30:30,592 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:30:30,592 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:30:30,592 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:30:30,592 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:30:30,592 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:30:30,593 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:30:30,593 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:30:30,593 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:30:30,593 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:30:30,593 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:30:30,594 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:30:30,594 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:30:30,594 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:30:30,594 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:30:30,594 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:30:30,595 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:30:30,595 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:30:30,595 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:30:30,595 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:30:30,595 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:30:30,596 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:30:30,596 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:30:30,597 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:30:30,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:30:30,641 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:30:30,645 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:30:30,646 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:30:30,646 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:30:30,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_2_false-valid-memtrack_true-termination.i [2018-01-24 16:30:30,849 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:30:30,855 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:30:30,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:30:30,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:30:30,861 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:30:30,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:30:30" (1/1) ... [2018-01-24 16:30:30,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d89a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:30, skipping insertion in model container [2018-01-24 16:30:30,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:30:30" (1/1) ... [2018-01-24 16:30:30,879 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:30:30,927 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:30:31,050 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:30:31,071 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:30:31,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31 WrapperNode [2018-01-24 16:30:31,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:30:31,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:30:31,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:30:31,079 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:30:31,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31" (1/1) ... [2018-01-24 16:30:31,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31" (1/1) ... [2018-01-24 16:30:31,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31" (1/1) ... [2018-01-24 16:30:31,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31" (1/1) ... [2018-01-24 16:30:31,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31" (1/1) ... [2018-01-24 16:30:31,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31" (1/1) ... [2018-01-24 16:30:31,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31" (1/1) ... [2018-01-24 16:30:31,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:30:31,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:30:31,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:30:31,114 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:30:31,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:30:31" (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 16:30:31,164 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:30:31,164 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:30:31,164 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 16:30:31,164 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 16:30:31,165 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:30:31,165 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:30:31,165 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:30:31,165 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:30:31,165 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:30:31,165 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:30:31,165 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:30:31,166 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:30:31,166 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:30:31,166 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 16:30:31,166 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 16:30:31,166 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:30:31,166 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:30:31,167 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:30:31,375 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:30:31,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:30:31 BoogieIcfgContainer [2018-01-24 16:30:31,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:30:31,376 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:30:31,376 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:30:31,376 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:30:31,377 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:30:31" (1/1) ... [2018-01-24 16:30:31,435 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:30:32,261 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:30:32,270 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:30:32,286 INFO L268 AbstractInterpreter]: Visited 53 different actions 188 times. Merged at 33 different actions 90 times. Never widened. Found 19 fixpoints after 12 different actions. Largest state had 29 variables. [2018-01-24 16:30:32,288 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:30:32,289 INFO L168 Benchmark]: Toolchain (without parser) took 1439.08 ms. Allocated memory was 304.1 MB in the beginning and 362.3 MB in the end (delta: 58.2 MB). Free memory was 263.1 MB in the beginning and 303.3 MB in the end (delta: -40.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:32,289 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 304.1 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:30:32,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.86 ms. Allocated memory is still 304.1 MB. Free memory was 263.1 MB in the beginning and 249.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:32,290 INFO L168 Benchmark]: Boogie Preprocessor took 34.65 ms. Allocated memory is still 304.1 MB. Free memory was 249.1 MB in the beginning and 247.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:32,290 INFO L168 Benchmark]: RCFGBuilder took 261.98 ms. Allocated memory is still 304.1 MB. Free memory was 247.1 MB in the beginning and 230.5 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 5.3 GB. [2018-01-24 16:30:32,290 INFO L168 Benchmark]: Abstract Interpretation took 911.76 ms. Allocated memory was 304.1 MB in the beginning and 362.3 MB in the end (delta: 58.2 MB). Free memory was 230.5 MB in the beginning and 303.3 MB in the end (delta: -72.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:30:32,292 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 304.1 MB. Free memory is still 269.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 222.86 ms. Allocated memory is still 304.1 MB. Free memory was 263.1 MB in the beginning and 249.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.65 ms. Allocated memory is still 304.1 MB. Free memory was 249.1 MB in the beginning and 247.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 261.98 ms. Allocated memory is still 304.1 MB. Free memory was 247.1 MB in the beginning and 230.5 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 911.76 ms. Allocated memory was 304.1 MB in the beginning and 362.3 MB in the end (delta: 58.2 MB). Free memory was 230.5 MB in the beginning and 303.3 MB in the end (delta: -72.8 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 44 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 234 LocStat_NO_SUPPORTING_DISEQUALITIES : 48 LocStat_NO_DISJUNCTIONS : -88 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 61 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 99 TransStat_NO_SUPPORTING_DISEQUALITIES : 20 TransStat_NO_DISJUNCTIONS : 69 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.721534 RENAME_VARIABLES(MILLISECONDS) : 0.035460 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.295030 PROJECTAWAY(MILLISECONDS) : 0.917030 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001964 DISJOIN(MILLISECONDS) : 0.266368 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.059333 ADD_EQUALITY(MILLISECONDS) : 0.046340 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.027858 #CONJOIN_DISJUNCTIVE : 299 #RENAME_VARIABLES : 721 #UNFREEZE : 0 #CONJOIN : 579 #PROJECTAWAY : 489 #ADD_WEAK_EQUALITY : 9 #DISJOIN : 67 #RENAME_VARIABLES_DISJUNCTIVE : 674 #ADD_EQUALITY : 85 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 17 - UnprovableResult [Line: 1460]: 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: [L1461] CALL entry_point() [L1439] int len = 10; [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] int j; [L1444] COND TRUE, RET !array [L1461] entry_point() - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L1461] CALL entry_point() [L1439] int len = 10; [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) [L1074] RET return malloc(size); [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] int j; [L1444] COND FALSE !(!array) [L1445] COND TRUE i=0 [L1454] FCALL array[j] - 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: [L1461] CALL entry_point() [L1439] int len = 10; [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) [L1074] RET return malloc(size); [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] int j; [L1444] COND FALSE !(!array) [L1445] COND TRUE i=0 [L1454] EXPR, FCALL array[j] [L1454] FCALL free(array[j]) - 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: [L1461] CALL entry_point() [L1439] int len = 10; [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) [L1074] RET return malloc(size); [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] int j; [L1444] COND FALSE !(!array) [L1445] COND TRUE i=0 [L1454] EXPR, FCALL array[j] [L1454] FCALL free(array[j]) - 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: [L1461] CALL entry_point() [L1439] int len = 10; [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) [L1074] RET return malloc(size); [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] int j; [L1444] COND FALSE !(!array) [L1445] COND TRUE i=0 [L1454] EXPR, FCALL array[j] [L1454] FCALL free(array[j]) [L1453] j-- [L1453] COND FALSE !(j>=0) [L1456] FCALL free(array) - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L1461] CALL entry_point() [L1439] int len = 10; [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) [L1074] RET return malloc(size); [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] struct A18 *p; [L1442] int i=0; [L1443] int j; [L1444] COND FALSE !(!array) [L1445] COND TRUE i=0 [L1454] EXPR, FCALL array[j] [L1454] FCALL free(array[j]) [L1453] j-- [L1453] COND TRUE j>=0 [L1454] FCALL array[j] - 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_test18_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-30-32-300.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-30-32-300.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_2_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-30-32-300.csv Received shutdown request...