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_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 04:40:46,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 04:40:46,983 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 04:40:46,999 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 04:40:46,999 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 04:40:47,000 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 04:40:47,001 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 04:40:47,003 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 04:40:47,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 04:40:47,006 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 04:40:47,007 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 04:40:47,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 04:40:47,009 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 04:40:47,010 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 04:40:47,011 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 04:40:47,014 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 04:40:47,016 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 04:40:47,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 04:40:47,020 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 04:40:47,021 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 04:40:47,023 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 04:40:47,029 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 04:40:47,029 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 04:40:47,030 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 04:40:47,039 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 04:40:47,039 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 04:40:47,040 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 04:40:47,040 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 04:40:47,040 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 04:40:47,040 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 04:40:47,040 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 04:40:47,041 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 04:40:47,041 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 04:40:47,041 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 04:40:47,041 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 04:40:47,041 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 04:40:47,042 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 04:40:47,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 04:40:47,042 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 04:40:47,042 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 04:40:47,042 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 04:40:47,042 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 04:40:47,042 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 04:40:47,043 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 04:40:47,043 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 04:40:47,043 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 04:40:47,043 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 04:40:47,043 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 04:40:47,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 04:40:47,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 04:40:47,044 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 04:40:47,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 04:40:47,044 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 04:40:47,044 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 04:40:47,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 04:40:47,045 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 04:40:47,045 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 04:40:47,046 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 04:40:47,046 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 04:40:47,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 04:40:47,094 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 04:40:47,097 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 04:40:47,098 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 04:40:47,099 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 04:40:47,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_true-valid-memsafety.i [2018-01-25 04:40:47,370 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 04:40:47,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 04:40:47,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 04:40:47,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 04:40:47,381 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 04:40:47,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73691d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47, skipping insertion in model container [2018-01-25 04:40:47,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,398 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:40:47,437 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:40:47,552 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:40:47,570 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:40:47,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47 WrapperNode [2018-01-25 04:40:47,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 04:40:47,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 04:40:47,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 04:40:47,579 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 04:40:47,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 04:40:47,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 04:40:47,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 04:40:47,611 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 04:40:47,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:40:47" (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 04:40:47,656 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 04:40:47,656 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 04:40:47,656 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-25 04:40:47,656 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 04:40:47,656 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 04:40:47,656 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 04:40:47,657 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 04:40:47,890 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 04:40:47,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:40:47 BoogieIcfgContainer [2018-01-25 04:40:47,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 04:40:47,892 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 04:40:47,892 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 04:40:47,893 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 04:40:47,893 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:40:47" (1/1) ... [2018-01-25 04:40:47,937 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 04:40:54,519 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 04:40:54,540 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 04:40:54,543 INFO L268 AbstractInterpreter]: Visited 65 different actions 310 times. Merged at 43 different actions 156 times. Never widened. Found 21 fixpoints after 9 different actions. Largest state had 31 variables. [2018-01-25 04:40:54,545 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 04:40:54,546 INFO L168 Benchmark]: Toolchain (without parser) took 7175.72 ms. Allocated memory was 302.0 MB in the beginning and 882.4 MB in the end (delta: 580.4 MB). Free memory was 261.1 MB in the beginning and 202.1 MB in the end (delta: 58.9 MB). Peak memory consumption was 639.3 MB. Max. memory is 5.3 GB. [2018-01-25 04:40:54,547 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 302.0 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 04:40:54,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.50 ms. Allocated memory is still 302.0 MB. Free memory was 261.1 MB in the beginning and 251.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:40:54,547 INFO L168 Benchmark]: Boogie Preprocessor took 31.94 ms. Allocated memory is still 302.0 MB. Free memory was 251.1 MB in the beginning and 249.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:40:54,547 INFO L168 Benchmark]: RCFGBuilder took 280.62 ms. Allocated memory is still 302.0 MB. Free memory was 249.1 MB in the beginning and 228.6 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 5.3 GB. [2018-01-25 04:40:54,548 INFO L168 Benchmark]: Abstract Interpretation took 6653.34 ms. Allocated memory was 302.0 MB in the beginning and 882.4 MB in the end (delta: 580.4 MB). Free memory was 228.6 MB in the beginning and 202.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 606.8 MB. Max. memory is 5.3 GB. [2018-01-25 04:40:54,549 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 302.0 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 202.50 ms. Allocated memory is still 302.0 MB. Free memory was 261.1 MB in the beginning and 251.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.94 ms. Allocated memory is still 302.0 MB. Free memory was 251.1 MB in the beginning and 249.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 280.62 ms. Allocated memory is still 302.0 MB. Free memory was 249.1 MB in the beginning and 228.6 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 6653.34 ms. Allocated memory was 302.0 MB in the beginning and 882.4 MB in the end (delta: 580.4 MB). Free memory was 228.6 MB in the beginning and 202.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 606.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 47 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 661 LocStat_NO_SUPPORTING_DISEQUALITIES : 120 LocStat_NO_DISJUNCTIONS : -94 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 71 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 146 TransStat_NO_SUPPORTING_DISEQUALITIES : 32 TransStat_NO_DISJUNCTIONS : 86 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.022273 RENAME_VARIABLES(MILLISECONDS) : 0.204152 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.001283 PROJECTAWAY(MILLISECONDS) : 0.055045 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.085176 DISJOIN(MILLISECONDS) : 0.249726 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.230127 ADD_EQUALITY(MILLISECONDS) : 0.027937 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.009430 #CONJOIN_DISJUNCTIVE : 483 #RENAME_VARIABLES : 1077 #UNFREEZE : 0 #CONJOIN : 813 #PROJECTAWAY : 594 #ADD_WEAK_EQUALITY : 15 #DISJOIN : 95 #RENAME_VARIABLES_DISJUNCTIVE : 1007 #ADD_EQUALITY : 117 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 26 - 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++ = 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++ = n [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++ = n [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++ = n [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[-1] - 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++ = n [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[-1] [L640] FCALL b[n - 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++ = n [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] EXPR, FCALL b[-1] [L640] EXPR, FCALL b[n - 2] [L640] COND FALSE !(b[-1] - b[n - 2]) [L643] FCALL free(a) [L643] 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++ = n [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] EXPR, FCALL b[-1] [L640] EXPR, FCALL b[n - 2] [L640] COND TRUE b[-1] - b[n - 2] [L641] FCALL free(a) [L641] FCALL free(b) - 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++ = n [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] EXPR, FCALL b[-1] [L640] EXPR, FCALL b[n - 2] [L640] COND FALSE !(b[-1] - b[n - 2]) [L643] FCALL free(a) [L643] 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]: 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_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-25_04-40-54-560.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-25_04-40-54-560.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_04-40-54-560.csv Received shutdown request...