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_preciseopt.epf -i ../../../trunk/examples/svcomp/array-examples/relax_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 01:04:45,434 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 01:04:45,436 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 01:04:45,452 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 01:04:45,452 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 01:04:45,453 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 01:04:45,455 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 01:04:45,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 01:04:45,461 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 01:04:45,461 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 01:04:45,467 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 01:04:45,467 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 01:04:45,468 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 01:04:45,469 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 01:04:45,474 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 01:04:45,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 01:04:45,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 01:04:45,486 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 01:04:45,488 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 01:04:45,489 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 01:04:45,495 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 01:04:45,501 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 01:04:45,502 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 01:04:45,502 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_preciseopt.epf [2018-01-25 01:04:45,514 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 01:04:45,514 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 01:04:45,515 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 01:04:45,515 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 01:04:45,515 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 01:04:45,516 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 01:04:45,516 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 01:04:45,516 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 01:04:45,516 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 01:04:45,517 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 01:04:45,517 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 01:04:45,517 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 01:04:45,517 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 01:04:45,518 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 01:04:45,518 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 01:04:45,518 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 01:04:45,518 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 01:04:45,518 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 01:04:45,519 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 01:04:45,519 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 01:04:45,520 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 01:04:45,520 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 01:04:45,520 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 01:04:45,520 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 01:04:45,520 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 01:04:45,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 01:04:45,521 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 01:04:45,521 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 01:04:45,521 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 01:04:45,521 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 01:04:45,521 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 01:04:45,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 01:04:45,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 01:04:45,522 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 01:04:45,523 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 01:04:45,524 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 01:04:45,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 01:04:45,581 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 01:04:45,587 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 01:04:45,589 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 01:04:45,589 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 01:04:45,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/relax_false-valid-deref.i [2018-01-25 01:04:45,803 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 01:04:45,808 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 01:04:45,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 01:04:45,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 01:04:45,815 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 01:04:45,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 01:04:45" (1/1) ... [2018-01-25 01:04:45,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ce22e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:45, skipping insertion in model container [2018-01-25 01:04:45,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 01:04:45" (1/1) ... [2018-01-25 01:04:45,832 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 01:04:45,872 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 01:04:46,004 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 01:04:46,031 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 01:04:46,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46 WrapperNode [2018-01-25 01:04:46,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 01:04:46,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 01:04:46,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 01:04:46,042 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 01:04:46,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46" (1/1) ... [2018-01-25 01:04:46,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46" (1/1) ... [2018-01-25 01:04:46,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46" (1/1) ... [2018-01-25 01:04:46,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46" (1/1) ... [2018-01-25 01:04:46,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46" (1/1) ... [2018-01-25 01:04:46,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46" (1/1) ... [2018-01-25 01:04:46,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46" (1/1) ... [2018-01-25 01:04:46,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 01:04:46,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 01:04:46,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 01:04:46,080 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 01:04:46,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 01:04:46" (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 01:04:46,134 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 01:04:46,134 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 01:04:46,134 INFO L136 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-01-25 01:04:46,135 INFO L136 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2018-01-25 01:04:46,135 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 01:04:46,135 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 01:04:46,135 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 01:04:46,135 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 01:04:46,135 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 01:04:46,135 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 01:04:46,135 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-01-25 01:04:46,135 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2018-01-25 01:04:46,136 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-25 01:04:46,136 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-01-25 01:04:46,136 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 01:04:46,136 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 01:04:46,136 INFO L128 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2018-01-25 01:04:46,136 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 01:04:46,136 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 01:04:46,137 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 01:04:46,541 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 01:04:46,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 01:04:46 BoogieIcfgContainer [2018-01-25 01:04:46,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 01:04:46,542 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 01:04:46,543 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 01:04:46,543 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 01:04:46,544 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 01:04:46" (1/1) ... [2018-01-25 01:04:46,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 01:04:54,924 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 01:04:54,946 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 01:04:54,957 INFO L268 AbstractInterpreter]: Visited 110 different actions 365 times. Merged at 55 different actions 133 times. Never widened. Found 49 fixpoints after 25 different actions. Largest state had 41 variables. [2018-01-25 01:04:54,959 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 01:04:54,960 INFO L168 Benchmark]: Toolchain (without parser) took 9156.95 ms. Allocated memory was 308.3 MB in the beginning and 897.1 MB in the end (delta: 588.8 MB). Free memory was 268.3 MB in the beginning and 198.0 MB in the end (delta: 70.3 MB). Peak memory consumption was 659.1 MB. Max. memory is 5.3 GB. [2018-01-25 01:04:54,961 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 308.3 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 01:04:54,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.88 ms. Allocated memory is still 308.3 MB. Free memory was 267.3 MB in the beginning and 256.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. [2018-01-25 01:04:54,962 INFO L168 Benchmark]: Boogie Preprocessor took 37.51 ms. Allocated memory is still 308.3 MB. Free memory was 256.2 MB in the beginning and 254.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 01:04:54,962 INFO L168 Benchmark]: RCFGBuilder took 461.64 ms. Allocated memory is still 308.3 MB. Free memory was 254.3 MB in the beginning and 226.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 5.3 GB. [2018-01-25 01:04:54,963 INFO L168 Benchmark]: Abstract Interpretation took 8416.93 ms. Allocated memory was 308.3 MB in the beginning and 897.1 MB in the end (delta: 588.8 MB). Free memory was 226.6 MB in the beginning and 198.0 MB in the end (delta: 28.7 MB). Peak memory consumption was 617.4 MB. Max. memory is 5.3 GB. [2018-01-25 01:04:54,964 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 308.3 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 232.88 ms. Allocated memory is still 308.3 MB. Free memory was 267.3 MB in the beginning and 256.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.51 ms. Allocated memory is still 308.3 MB. Free memory was 256.2 MB in the beginning and 254.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 461.64 ms. Allocated memory is still 308.3 MB. Free memory was 254.3 MB in the beginning and 226.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 8416.93 ms. Allocated memory was 308.3 MB in the beginning and 897.1 MB in the end (delta: 588.8 MB). Free memory was 226.6 MB in the beginning and 198.0 MB in the end (delta: 28.7 MB). Peak memory consumption was 617.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 75 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 974 LocStat_NO_SUPPORTING_DISEQUALITIES : 223 LocStat_NO_DISJUNCTIONS : -150 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 118 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 154 TransStat_NO_SUPPORTING_DISEQUALITIES : 33 TransStat_NO_DISJUNCTIONS : 134 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.029872 RENAME_VARIABLES(MILLISECONDS) : 0.413584 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.001271 PROJECTAWAY(MILLISECONDS) : 0.309543 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.103423 DISJOIN(MILLISECONDS) : 0.341559 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.452003 ADD_EQUALITY(MILLISECONDS) : 0.043737 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.016145 #CONJOIN_DISJUNCTIVE : 546 #RENAME_VARIABLES : 1177 #UNFREEZE : 0 #CONJOIN : 814 #PROJECTAWAY : 708 #ADD_WEAK_EQUALITY : 7 #DISJOIN : 107 #RENAME_VARIABLES_DISJUNCTIVE : 1100 #ADD_EQUALITY : 137 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 29 - 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: [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L585] EXPR, FCALL malloc(sizeof(int)*pat_len) [L585] int *pat=malloc(sizeof(int)*pat_len); [L586] EXPR, FCALL malloc(sizeof(int)*a_len) [L586] int *a=malloc(sizeof(int)*a_len); [L587] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L564] COND FALSE !(pat_length>a_length+1) [L566] int shift=0; [L567] int i=0; [L567] COND TRUE ia_length+1) [L566] int shift=0; [L567] int i=0; [L567] COND TRUE ia_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND FALSE !(is_relaxed_prefix(pat, pat_len, a, a_len)) [L603] COND TRUE pat_len<=a_len+1 [L605] unsigned long differences=0; [L606] int i=0; [L606] COND TRUE ia_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND FALSE !(is_relaxed_prefix(pat, pat_len, a, a_len)) [L603] COND TRUE pat_len<=a_len+1 [L605] unsigned long differences=0; [L606] int i=0; [L606] COND TRUE ia_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND FALSE !(is_relaxed_prefix(pat, pat_len, a, a_len)) [L603] COND FALSE !(pat_len<=a_len+1) [L615] FCALL free(pat) [L616] FCALL free(a) [L617] return 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: [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L585] EXPR, FCALL malloc(sizeof(int)*pat_len) [L585] int *pat=malloc(sizeof(int)*pat_len); [L586] EXPR, FCALL malloc(sizeof(int)*a_len) [L586] int *a=malloc(sizeof(int)*a_len); [L587] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L564] COND TRUE pat_length>a_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND TRUE is_relaxed_prefix(pat, pat_len, a, a_len) [L589] CALL __VERIFIER_assert(pat_len<=a_len+1) [L5] COND FALSE, RET !(!(cond)) [L589] __VERIFIER_assert(pat_len<=a_len+1) [L590] unsigned long different = __VERIFIER_nondet_ulong(); [L591] COND TRUE pat_len>a_len [L592] different=pat_len-1 [L593] int i=0; [L593] COND TRUE ia_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND TRUE is_relaxed_prefix(pat, pat_len, a, a_len) [L589] CALL __VERIFIER_assert(pat_len<=a_len+1) [L5] COND FALSE, RET !(!(cond)) [L589] __VERIFIER_assert(pat_len<=a_len+1) [L590] unsigned long different = __VERIFIER_nondet_ulong(); [L591] COND TRUE pat_len>a_len [L592] different=pat_len-1 [L593] int i=0; [L593] COND TRUE ia_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND TRUE is_relaxed_prefix(pat, pat_len, a, a_len) [L589] CALL __VERIFIER_assert(pat_len<=a_len+1) [L5] COND FALSE, RET !(!(cond)) [L589] __VERIFIER_assert(pat_len<=a_len+1) [L590] unsigned long different = __VERIFIER_nondet_ulong(); [L591] COND TRUE pat_len>a_len [L592] different=pat_len-1 [L593] int i=0; [L593] COND TRUE ia_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND TRUE is_relaxed_prefix(pat, pat_len, a, a_len) [L589] CALL __VERIFIER_assert(pat_len<=a_len+1) [L5] COND FALSE, RET !(!(cond)) [L589] __VERIFIER_assert(pat_len<=a_len+1) [L590] unsigned long different = __VERIFIER_nondet_ulong(); [L591] COND TRUE pat_len>a_len [L592] different=pat_len-1 [L593] int i=0; [L593] COND TRUE ia_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND TRUE is_relaxed_prefix(pat, pat_len, a, a_len) [L589] CALL __VERIFIER_assert(pat_len<=a_len+1) [L5] COND FALSE, RET !(!(cond)) [L589] __VERIFIER_assert(pat_len<=a_len+1) [L590] unsigned long different = __VERIFIER_nondet_ulong(); [L591] COND TRUE pat_len>a_len [L592] different=pat_len-1 [L593] int i=0; [L593] COND TRUE idifferent [L600] FCALL pat[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: [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L584] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L585] EXPR, FCALL malloc(sizeof(int)*pat_len) [L585] int *pat=malloc(sizeof(int)*pat_len); [L586] EXPR, FCALL malloc(sizeof(int)*a_len) [L586] int *a=malloc(sizeof(int)*a_len); [L587] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L564] COND TRUE pat_length>a_length+1 [L565] RET return 0; [L587] is_relaxed_prefix(pat, pat_len, a, a_len) [L587] COND TRUE is_relaxed_prefix(pat, pat_len, a, a_len) [L589] CALL __VERIFIER_assert(pat_len<=a_len+1) [L5] COND FALSE, RET !(!(cond)) [L589] __VERIFIER_assert(pat_len<=a_len+1) [L590] unsigned long different = __VERIFIER_nondet_ulong(); [L591] COND TRUE pat_len>a_len [L592] different=pat_len-1 [L593] int i=0; [L593] COND TRUE idifferent [L600] FCALL pat[i] [L600] FCALL a[i-1] - 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]: 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]: 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]: 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 * 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/relax_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_preciseopt.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-25_01-04-54-976.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/relax_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_preciseopt.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-25_01-04-54-976.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/relax_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_preciseopt.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_01-04-54-976.csv Received shutdown request...