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/list-ext-properties/simple-ext_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:28:47,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:28:47,912 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:28:47,928 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:28:47,929 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:28:47,930 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:28:47,931 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:28:47,933 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:28:47,935 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:28:47,936 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:28:47,937 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:28:47,937 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:28:47,938 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:28:47,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:28:47,940 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:28:47,943 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:28:47,945 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:28:47,947 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:28:47,948 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:28:47,950 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:28:47,952 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:28:47,958 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:28:47,958 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:28:47,959 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 16:28:47,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:28:47,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:28:47,970 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:28:47,970 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:28:47,971 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:28:47,971 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:28:47,971 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:28:47,971 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:28:47,972 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:28:47,972 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:28:47,972 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:28:47,973 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:28:47,973 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:28:47,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:28:47,973 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:28:47,973 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:28:47,974 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:28:47,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:28:47,974 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:28:47,974 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:28:47,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:28:47,975 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:28:47,975 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:28:47,975 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:28:47,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:28:47,975 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:28:47,976 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:28:47,976 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:28:47,976 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:28:47,976 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:28:47,976 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:28:47,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:28:47,977 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:28:47,978 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:28:47,978 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:28:48,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:28:48,026 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:28:48,030 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:28:48,031 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:28:48,031 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:28:48,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext_1_true-valid-memsafety.i [2018-01-24 16:28:48,253 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:28:48,259 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:28:48,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:28:48,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:28:48,265 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:28:48,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ee3542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48, skipping insertion in model container [2018-01-24 16:28:48,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,289 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:28:48,330 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:28:48,451 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:28:48,475 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:28:48,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48 WrapperNode [2018-01-24 16:28:48,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:28:48,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:28:48,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:28:48,483 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:28:48,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:28:48,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:28:48,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:28:48,518 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:28:48,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:28:48" (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 16:28:48,564 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:28:48,565 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:28:48,565 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-01-24 16:28:48,565 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:28:48,565 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:28:48,565 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:28:48,565 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:28:48,565 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:28:48,565 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:28:48,565 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:28:48,565 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:28:48,566 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:28:48,566 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 16:28:48,566 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:28:48,566 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:28:48,566 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-01-24 16:28:48,566 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:28:48,566 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:28:48,566 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:28:48,823 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:28:48,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:28:48 BoogieIcfgContainer [2018-01-24 16:28:48,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:28:48,824 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:28:48,824 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:28:48,825 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:28:48,825 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:28:48" (1/1) ... [2018-01-24 16:28:48,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:28:50,009 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:28:50,041 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:28:50,046 INFO L268 AbstractInterpreter]: Visited 70 different actions 279 times. Merged at 51 different actions 150 times. Widened at 2 different actions 2 times. Found 19 fixpoints after 14 different actions. Largest state had 37 variables. [2018-01-24 16:28:50,049 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:28:50,050 INFO L168 Benchmark]: Toolchain (without parser) took 1796.71 ms. Allocated memory was 297.3 MB in the beginning and 381.2 MB in the end (delta: 83.9 MB). Free memory was 255.2 MB in the beginning and 302.3 MB in the end (delta: -47.1 MB). Peak memory consumption was 36.8 MB. Max. memory is 5.3 GB. [2018-01-24 16:28:50,051 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 297.3 MB. Free memory is still 261.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:28:50,051 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.09 ms. Allocated memory is still 297.3 MB. Free memory was 254.2 MB in the beginning and 243.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:28:50,052 INFO L168 Benchmark]: Boogie Preprocessor took 34.47 ms. Allocated memory is still 297.3 MB. Free memory was 243.2 MB in the beginning and 242.2 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-01-24 16:28:50,052 INFO L168 Benchmark]: RCFGBuilder took 305.88 ms. Allocated memory is still 297.3 MB. Free memory was 242.2 MB in the beginning and 219.2 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:28:50,052 INFO L168 Benchmark]: Abstract Interpretation took 1225.10 ms. Allocated memory was 297.3 MB in the beginning and 381.2 MB in the end (delta: 83.9 MB). Free memory was 219.2 MB in the beginning and 302.3 MB in the end (delta: -83.1 MB). Peak memory consumption was 741.5 kB. Max. memory is 5.3 GB. [2018-01-24 16:28:50,054 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 297.3 MB. Free memory is still 261.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 223.09 ms. Allocated memory is still 297.3 MB. Free memory was 254.2 MB in the beginning and 243.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.47 ms. Allocated memory is still 297.3 MB. Free memory was 243.2 MB in the beginning and 242.2 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 305.88 ms. Allocated memory is still 297.3 MB. Free memory was 242.2 MB in the beginning and 219.2 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 1225.10 ms. Allocated memory was 297.3 MB in the beginning and 381.2 MB in the end (delta: 83.9 MB). Free memory was 219.2 MB in the beginning and 302.3 MB in the end (delta: -83.1 MB). Peak memory consumption was 741.5 kB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 56 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 507 LocStat_NO_SUPPORTING_DISEQUALITIES : 145 LocStat_NO_DISJUNCTIONS : -112 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 74 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 123 TransStat_NO_SUPPORTING_DISEQUALITIES : 32 TransStat_NO_DISJUNCTIONS : 87 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.454738 RENAME_VARIABLES(MILLISECONDS) : 0.709499 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.420183 PROJECTAWAY(MILLISECONDS) : 0.360642 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001109 DISJOIN(MILLISECONDS) : 0.687505 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.753560 ADD_EQUALITY(MILLISECONDS) : 0.020871 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007656 #CONJOIN_DISJUNCTIVE : 419 #RENAME_VARIABLES : 861 #UNFREEZE : 0 #CONJOIN : 602 #PROJECTAWAY : 483 #ADD_WEAK_EQUALITY : 30 #DISJOIN : 69 #RENAME_VARIABLES_DISJUNCTIVE : 784 #ADD_EQUALITY : 132 #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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND TRUE i < 30 && __VERIFIER_nondet_int() [L634] FCALL p->h = i - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i [L642] FCALL p->n = 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND TRUE i < 30 && __VERIFIER_nondet_int() [L634] FCALL p->h = i [L635] EXPR, FCALL malloc(sizeof(struct node)) [L635] t = (List) malloc(sizeof(struct node)) [L636] COND FALSE !(t == 0) [L637] FCALL p->n = t - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND TRUE i < 30 && __VERIFIER_nondet_int() [L634] FCALL p->h = i [L635] EXPR, FCALL malloc(sizeof(struct node)) [L635] t = (List) malloc(sizeof(struct node)) [L636] COND FALSE !(t == 0) [L637] FCALL p->n = t - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i [L642] FCALL p->n = 0 [L643] p = a [L644] i = 0 [L645] COND TRUE p!=0 [L646] FCALL p->h - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND TRUE i < 30 && __VERIFIER_nondet_int() [L634] FCALL p->h = i [L635] EXPR, FCALL malloc(sizeof(struct node)) [L635] t = (List) malloc(sizeof(struct node)) [L636] COND FALSE !(t == 0) [L637] FCALL p->n = t [L638] FCALL p->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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i [L642] FCALL p->n = 0 [L643] p = a [L644] i = 0 [L645] COND TRUE p!=0 [L646] EXPR, FCALL p->h [L646] COND FALSE !(p->h != i) [L649] FCALL p->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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i [L642] FCALL p->n = 0 [L643] p = a [L644] i = 0 [L645] COND TRUE p!=0 [L646] EXPR, FCALL p->h [L646] COND FALSE !(p->h != i) [L649] EXPR, FCALL p->n [L649] p = p->n [L650] i++ [L645] COND TRUE p!=0 [L646] FCALL p->h - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND TRUE i < 30 && __VERIFIER_nondet_int() [L634] FCALL p->h = i [L635] EXPR, FCALL malloc(sizeof(struct node)) [L635] t = (List) malloc(sizeof(struct node)) [L636] COND FALSE !(t == 0) [L637] FCALL p->n = t [L638] EXPR, FCALL p->n [L638] p = p->n [L639] i++ [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND TRUE i < 30 && __VERIFIER_nondet_int() [L634] FCALL p->h = i [L635] EXPR, FCALL malloc(sizeof(struct node)) [L635] t = (List) malloc(sizeof(struct node)) [L636] COND FALSE !(t == 0) [L637] FCALL p->n = t [L638] EXPR, FCALL p->n [L638] p = p->n [L639] i++ [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND TRUE i < 30 && __VERIFIER_nondet_int() [L634] FCALL p->h = i - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i [L642] FCALL p->n = 0 [L643] p = a [L644] i = 0 [L645] COND TRUE p!=0 [L646] EXPR, FCALL p->h [L646] COND FALSE !(p->h != i) [L649] EXPR, FCALL p->n [L649] p = p->n [L650] i++ [L645] COND FALSE !(p!=0) [L652] p = a [L653] COND TRUE p != 0 [L654] FCALL p->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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i [L642] FCALL p->n = 0 [L643] p = a [L644] i = 0 [L645] COND TRUE p!=0 [L646] EXPR, FCALL p->h [L646] COND FALSE !(p->h != i) [L649] EXPR, FCALL p->n [L649] p = p->n [L650] i++ [L645] COND FALSE !(p!=0) [L652] p = a [L653] COND TRUE p != 0 [L654] EXPR, FCALL p->n [L654] t = p->n [L655] FCALL free(p) [L656] p = t [L653] COND TRUE p != 0 [L654] FCALL p->n - UnprovableResult [Line: 627]: 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i [L642] FCALL p->n = 0 [L643] p = a [L644] i = 0 [L645] COND TRUE p!=0 [L646] EXPR, FCALL p->h [L646] COND FALSE !(p->h != i) [L649] EXPR, FCALL p->n [L649] p = p->n [L650] i++ [L645] COND FALSE !(p!=0) [L652] p = a [L653] COND TRUE p != 0 [L654] EXPR, FCALL p->n [L654] t = p->n [L655] FCALL free(p) [L656] p = t [L653] COND FALSE !(p != 0) [L658] return 0; - 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: [L628] EXPR, FCALL malloc(sizeof(struct node)) [L628] List a = (List) malloc(sizeof(struct node)); [L629] COND FALSE !(a == 0) [L630] List t; [L631] List p = a; [L632] int i = 0; [L633] i < 30 && __VERIFIER_nondet_int() [L633] i < 30 && __VERIFIER_nondet_int() [L633] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L641] FCALL p->h = i [L642] FCALL p->n = 0 [L643] p = a [L644] i = 0 [L645] COND TRUE p!=0 [L646] EXPR, FCALL p->h [L646] COND FALSE !(p->h != i) [L649] EXPR, FCALL p->n [L649] p = p->n [L650] i++ [L645] COND FALSE !(p!=0) [L652] p = a [L653] COND TRUE p != 0 [L654] EXPR, FCALL p->n [L654] t = p->n [L655] FCALL free(p) [L656] p = t [L653] COND TRUE p != 0 [L654] EXPR, FCALL p->n [L654] t = p->n [L655] FCALL free(p) - 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 * 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/simple-ext_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-28-50-067.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/simple-ext_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-28-50-067.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/simple-ext_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-28-50-067.csv Received shutdown request...