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_smtcomp.epf -i ../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 04:37:43,573 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 04:37:43,574 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 04:37:43,586 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 04:37:43,587 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 04:37:43,587 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 04:37:43,588 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 04:37:43,589 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 04:37:43,591 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 04:37:43,591 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 04:37:43,592 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 04:37:43,592 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 04:37:43,593 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 04:37:43,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 04:37:43,594 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 04:37:43,597 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 04:37:43,599 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 04:37:43,601 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 04:37:43,602 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 04:37:43,603 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 04:37:43,606 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 04:37:43,611 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 04:37:43,611 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 04:37:43,612 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_smtcomp.epf [2018-01-25 04:37:43,640 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 04:37:43,640 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 04:37:43,641 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 04:37:43,641 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 04:37:43,641 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 04:37:43,642 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 04:37:43,642 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 04:37:43,642 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 04:37:43,643 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 04:37:43,643 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 04:37:43,643 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 04:37:43,643 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 04:37:43,643 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 04:37:43,644 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 04:37:43,644 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 04:37:43,644 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 04:37:43,644 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 04:37:43,644 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 04:37:43,645 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 04:37:43,645 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 04:37:43,645 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 04:37:43,645 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 04:37:43,645 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 04:37:43,646 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 04:37:43,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 04:37:43,646 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 04:37:43,646 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 04:37:43,646 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 04:37:43,647 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 04:37:43,647 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 04:37:43,647 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 04:37:43,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 04:37:43,647 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 04:37:43,648 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 04:37:43,648 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 04:37:43,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 04:37:43,687 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 04:37:43,690 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 04:37:43,691 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 04:37:43,691 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 04:37:43,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-deref.i [2018-01-25 04:37:43,908 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 04:37:43,914 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 04:37:43,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 04:37:43,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 04:37:43,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 04:37:43,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:37:43" (1/1) ... [2018-01-25 04:37:43,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cccfa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:43, skipping insertion in model container [2018-01-25 04:37:43,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:37:43" (1/1) ... [2018-01-25 04:37:43,945 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:37:43,985 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:37:44,102 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:37:44,124 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:37:44,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44 WrapperNode [2018-01-25 04:37:44,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 04:37:44,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 04:37:44,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 04:37:44,131 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 04:37:44,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44" (1/1) ... [2018-01-25 04:37:44,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44" (1/1) ... [2018-01-25 04:37:44,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44" (1/1) ... [2018-01-25 04:37:44,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44" (1/1) ... [2018-01-25 04:37:44,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44" (1/1) ... [2018-01-25 04:37:44,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44" (1/1) ... [2018-01-25 04:37:44,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44" (1/1) ... [2018-01-25 04:37:44,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 04:37:44,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 04:37:44,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 04:37:44,164 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 04:37:44,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:37:44" (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 [2018-01-25 04:37:44,228 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 04:37:44,228 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 04:37:44,228 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-25 04:37:44,228 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 04:37:44,228 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 04:37:44,229 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 04:37:44,230 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 04:37:44,450 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 04:37:44,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:37:44 BoogieIcfgContainer [2018-01-25 04:37:44,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 04:37:44,451 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 04:37:44,451 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 04:37:44,451 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 04:37:44,452 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:37:44" (1/1) ... [2018-01-25 04:37:44,501 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 04:38:01,554 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 04:38:01,575 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 04:38:01,578 INFO L268 AbstractInterpreter]: Visited 62 different actions 356 times. Merged at 41 different actions 197 times. Never widened. Found 18 fixpoints after 8 different actions. Largest state had 30 variables. [2018-01-25 04:38:01,579 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 04:38:01,580 INFO L168 Benchmark]: Toolchain (without parser) took 17671.64 ms. Allocated memory was 307.8 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 267.8 MB in the beginning and 1.2 GB in the end (delta: -979.0 MB). Peak memory consumption was 108.3 MB. Max. memory is 5.3 GB. [2018-01-25 04:38:01,581 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 307.8 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 04:38:01,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.88 ms. Allocated memory is still 307.8 MB. Free memory was 266.8 MB in the beginning and 256.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-25 04:38:01,581 INFO L168 Benchmark]: Boogie Preprocessor took 32.17 ms. Allocated memory is still 307.8 MB. Free memory was 256.7 MB in the beginning and 254.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:38:01,582 INFO L168 Benchmark]: RCFGBuilder took 287.09 ms. Allocated memory is still 307.8 MB. Free memory was 254.7 MB in the beginning and 236.0 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. [2018-01-25 04:38:01,582 INFO L168 Benchmark]: Abstract Interpretation took 17128.54 ms. Allocated memory was 307.8 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 236.0 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 76.6 MB. Max. memory is 5.3 GB. [2018-01-25 04:38:01,583 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 307.8 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 215.88 ms. Allocated memory is still 307.8 MB. Free memory was 266.8 MB in the beginning and 256.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.17 ms. Allocated memory is still 307.8 MB. Free memory was 256.7 MB in the beginning and 254.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 287.09 ms. Allocated memory is still 307.8 MB. Free memory was 254.7 MB in the beginning and 236.0 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 17128.54 ms. Allocated memory was 307.8 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 236.0 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 76.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 45 LocStat_MAX_WEQGRAPH_SIZE : 8 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 712 LocStat_NO_SUPPORTING_DISEQUALITIES : 117 LocStat_NO_DISJUNCTIONS : -90 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 68 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 142 TransStat_NO_SUPPORTING_DISEQUALITIES : 31 TransStat_NO_DISJUNCTIONS : 82 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.022371 RENAME_VARIABLES(MILLISECONDS) : 0.119261 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.001342 PROJECTAWAY(MILLISECONDS) : 0.096771 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.053501 DISJOIN(MILLISECONDS) : 0.226760 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.135198 ADD_EQUALITY(MILLISECONDS) : 0.027400 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006700 #CONJOIN_DISJUNCTIVE : 572 #RENAME_VARIABLES : 1337 #UNFREEZE : 0 #CONJOIN : 992 #PROJECTAWAY : 706 #ADD_WEAK_EQUALITY : 15 #DISJOIN : 120 #RENAME_VARIABLES_DISJUNCTIVE : 1223 #ADD_EQUALITY : 113 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 25 - 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: [L619] int *a, *b; [L620] int n; [L632] n = 1 [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] EXPR, FCALL malloc(n * sizeof(*a)) [L636] a = malloc(n * sizeof(*a)) [L637] EXPR, FCALL malloc(n * sizeof(*b)) [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ [L638] FCALL *b++ = 0 - 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: [L619] int *a, *b; [L620] int n; [L632] n = 1 [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] EXPR, FCALL malloc(n * sizeof(*a)) [L636] a = malloc(n * sizeof(*a)) [L637] EXPR, FCALL malloc(n * sizeof(*b)) [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ [L638] FCALL *b++ = 0 [L639] CALL foo() [L624] int i; [L625] i = 0 [L625] COND TRUE i < n [L626] FCALL a[i] = n - 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: [L619] int *a, *b; [L620] int n; [L632] n = 1 [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] EXPR, FCALL malloc(n * sizeof(*a)) [L636] a = malloc(n * sizeof(*a)) [L637] EXPR, FCALL malloc(n * sizeof(*b)) [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ [L638] FCALL *b++ = 0 [L639] CALL foo() [L624] int i; [L625] i = 0 [L625] COND FALSE !(i < n) [L627] i = 0 [L627] COND TRUE i < n - 1 [L628] FCALL b[i] = n - 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: [L619] int *a, *b; [L620] int n; [L632] n = 1 [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] EXPR, FCALL malloc(n * sizeof(*a)) [L636] a = malloc(n * sizeof(*a)) [L637] EXPR, FCALL malloc(n * sizeof(*b)) [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ [L638] FCALL *b++ = 0 [L639] CALL foo() [L624] int i; [L625] i = 0 [L625] COND FALSE !(i < n) [L627] i = 0 [L627] COND FALSE, RET !(i < n - 1) [L639] foo() [L640] FCALL b[-2] - 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: [L619] int *a, *b; [L620] int n; [L632] n = 1 [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] EXPR, FCALL malloc(n * sizeof(*a)) [L636] a = malloc(n * sizeof(*a)) [L637] EXPR, FCALL malloc(n * sizeof(*b)) [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ [L638] FCALL *b++ = 0 [L639] CALL foo() [L624] int i; [L625] i = 0 [L625] COND FALSE !(i < n) [L627] i = 0 [L627] COND FALSE, RET !(i < n - 1) [L639] foo() [L640] FCALL b[-2] [L640] COND TRUE b[-2] [L641] FCALL free(a) [L641] FCALL free(b-1) - 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: [L619] int *a, *b; [L620] int n; [L632] n = 1 [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] EXPR, FCALL malloc(n * sizeof(*a)) [L636] a = malloc(n * sizeof(*a)) [L637] EXPR, FCALL malloc(n * sizeof(*b)) [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ [L638] FCALL *b++ = 0 [L639] CALL foo() [L624] int i; [L625] i = 0 [L625] COND FALSE !(i < n) [L627] i = 0 [L627] COND FALSE, RET !(i < n - 1) [L639] foo() [L640] FCALL b[-2] [L640] COND FALSE !(b[-2]) [L643] FCALL free(a) [L643] FCALL free(b-1) - UnprovableResult [Line: 630]: 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: [L619] int *a, *b; [L620] int n; [L632] n = 1 [L633] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L636] EXPR, FCALL malloc(n * sizeof(*a)) [L636] a = malloc(n * sizeof(*a)) [L637] EXPR, FCALL malloc(n * sizeof(*b)) [L637] b = malloc(n * sizeof(*b)) [L638] EXPR b++ [L638] FCALL *b++ = 0 [L639] CALL foo() [L624] int i; [L625] i = 0 [L625] COND FALSE !(i < n) [L627] i = 0 [L627] COND FALSE, RET !(i < n - 1) [L639] foo() [L640] FCALL b[-2] [L640] COND TRUE b[-2] [L641] FCALL free(a) [L641] FCALL free(b-1) [L644] return 0; - 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 - 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]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference 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]: pointer dereference always succeeds For all program executions holds that pointer dereference 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/960521-1_1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-25_04-38-01-591.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-25_04-38-01-591.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_04-38-01-591.csv Received shutdown request...