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/array-memsafety/cstrcmp-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 04:03:13,370 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 04:03:13,371 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 04:03:13,383 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 04:03:13,384 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 04:03:13,385 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 04:03:13,386 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 04:03:13,387 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 04:03:13,389 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 04:03:13,389 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 04:03:13,390 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 04:03:13,390 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 04:03:13,391 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 04:03:13,392 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 04:03:13,393 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 04:03:13,395 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 04:03:13,398 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 04:03:13,399 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 04:03:13,401 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 04:03:13,402 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 04:03:13,404 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 04:03:13,409 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 04:03:13,410 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 04:03:13,410 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 04:03:13,419 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 04:03:13,420 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 04:03:13,421 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 04:03:13,421 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 04:03:13,421 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 04:03:13,421 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 04:03:13,421 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 04:03:13,422 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 04:03:13,422 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 04:03:13,423 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 04:03:13,423 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 04:03:13,423 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 04:03:13,423 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 04:03:13,423 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 04:03:13,424 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 04:03:13,424 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 04:03:13,424 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 04:03:13,424 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 04:03:13,424 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 04:03:13,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 04:03:13,425 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 04:03:13,425 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 04:03:13,425 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 04:03:13,425 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 04:03:13,425 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 04:03:13,426 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 04:03:13,426 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 04:03:13,426 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 04:03:13,426 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 04:03:13,427 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 04:03:13,427 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 04:03:13,427 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 04:03:13,427 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 04:03:13,428 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 04:03:13,428 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 04:03:13,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 04:03:13,476 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 04:03:13,480 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 04:03:13,481 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 04:03:13,482 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 04:03:13,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcmp-alloca_true-valid-memsafety_true-termination.i [2018-01-25 04:03:13,724 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 04:03:13,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 04:03:13,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 04:03:13,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 04:03:13,736 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 04:03:13,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d63a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13, skipping insertion in model container [2018-01-25 04:03:13,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,753 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:03:13,791 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:03:13,912 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:03:13,928 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:03:13,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13 WrapperNode [2018-01-25 04:03:13,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 04:03:13,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 04:03:13,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 04:03:13,934 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 04:03:13,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13" (1/1) ... [2018-01-25 04:03:13,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 04:03:13,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 04:03:13,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 04:03:13,968 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 04:03:13,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:03:13" (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 04:03:14,023 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 04:03:14,023 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 04:03:14,023 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcmp [2018-01-25 04:03:14,024 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 04:03:14,024 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 04:03:14,024 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 04:03:14,024 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 04:03:14,024 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 04:03:14,024 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 04:03:14,025 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 04:03:14,025 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcmp [2018-01-25 04:03:14,025 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 04:03:14,025 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 04:03:14,025 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 04:03:14,253 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 04:03:14,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:03:14 BoogieIcfgContainer [2018-01-25 04:03:14,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 04:03:14,254 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 04:03:14,254 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 04:03:14,255 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 04:03:14,256 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:03:14" (1/1) ... [2018-01-25 04:03:14,300 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 04:03:46,410 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 04:03:46,433 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 04:03:46,437 INFO L268 AbstractInterpreter]: Visited 61 different actions 543 times. Merged at 44 different actions 312 times. Never widened. Found 37 fixpoints after 7 different actions. Largest state had 32 variables. [2018-01-25 04:03:46,439 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 04:03:46,439 INFO L168 Benchmark]: Toolchain (without parser) took 32714.61 ms. Allocated memory was 306.2 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 266.3 MB in the beginning and 599.5 MB in the end (delta: -333.3 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-01-25 04:03:46,440 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 306.2 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 04:03:46,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.51 ms. Allocated memory is still 306.2 MB. Free memory was 265.3 MB in the beginning and 255.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. [2018-01-25 04:03:46,441 INFO L168 Benchmark]: Boogie Preprocessor took 33.35 ms. Allocated memory is still 306.2 MB. Free memory was 255.1 MB in the beginning and 253.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:03:46,441 INFO L168 Benchmark]: RCFGBuilder took 286.08 ms. Allocated memory is still 306.2 MB. Free memory was 253.1 MB in the beginning and 234.5 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. [2018-01-25 04:03:46,441 INFO L168 Benchmark]: Abstract Interpretation took 32184.61 ms. Allocated memory was 306.2 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 234.5 MB in the beginning and 599.5 MB in the end (delta: -365.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-01-25 04:03:46,443 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 306.2 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 203.51 ms. Allocated memory is still 306.2 MB. Free memory was 265.3 MB in the beginning and 255.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.35 ms. Allocated memory is still 306.2 MB. Free memory was 255.1 MB in the beginning and 253.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 286.08 ms. Allocated memory is still 306.2 MB. Free memory was 253.1 MB in the beginning and 234.5 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 32184.61 ms. Allocated memory was 306.2 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 234.5 MB in the beginning and 599.5 MB in the end (delta: -365.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 48 LocStat_MAX_WEQGRAPH_SIZE : 5 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 594 LocStat_NO_SUPPORTING_DISEQUALITIES : 119 LocStat_NO_DISJUNCTIONS : -96 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 67 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 95 TransStat_NO_SUPPORTING_DISEQUALITIES : 14 TransStat_NO_DISJUNCTIONS : 75 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.763730 RENAME_VARIABLES(MILLISECONDS) : 0.008986 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.659859 PROJECTAWAY(MILLISECONDS) : 0.359675 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.066517 DISJOIN(MILLISECONDS) : 0.235590 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.018696 ADD_EQUALITY(MILLISECONDS) : 0.017607 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008255 #CONJOIN_DISJUNCTIVE : 867 #RENAME_VARIABLES : 2061 #UNFREEZE : 0 #CONJOIN : 1380 #PROJECTAWAY : 1258 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 215 #RENAME_VARIABLES_DISJUNCTIVE : 1961 #ADD_EQUALITY : 97 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 12 - 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: [L552] int length1 = __VERIFIER_nondet_int(); [L553] int length2 = __VERIFIER_nondet_int(); [L554] COND TRUE length1 < 1 [L555] length1 = 1 [L557] COND TRUE length2 < 1 [L558] length2 = 1 [L560] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L560] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L561] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L561] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L562] FCALL nondetString1[length1-1] = '\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: [L552] int length1 = __VERIFIER_nondet_int(); [L553] int length2 = __VERIFIER_nondet_int(); [L554] COND TRUE length1 < 1 [L555] length1 = 1 [L557] COND TRUE length2 < 1 [L558] length2 = 1 [L560] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L560] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L561] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L561] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L562] FCALL nondetString1[length1-1] = '\0' [L563] FCALL nondetString2[length2-1] = '\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: [L552] int length1 = __VERIFIER_nondet_int(); [L553] int length2 = __VERIFIER_nondet_int(); [L554] COND TRUE length1 < 1 [L555] length1 = 1 [L557] COND TRUE length2 < 1 [L558] length2 = 1 [L560] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L560] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L561] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L561] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L562] FCALL nondetString1[length1-1] = '\0' [L563] FCALL nondetString2[length2-1] = '\0' [L564] CALL cstrcmp(nondetString1,nondetString2) [L542] unsigned char uc1, uc2; [L543] FCALL \read(*s1) - 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: [L552] int length1 = __VERIFIER_nondet_int(); [L553] int length2 = __VERIFIER_nondet_int(); [L554] COND TRUE length1 < 1 [L555] length1 = 1 [L557] COND TRUE length2 < 1 [L558] length2 = 1 [L560] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L560] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L561] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L561] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L562] FCALL nondetString1[length1-1] = '\0' [L563] FCALL nondetString2[length2-1] = '\0' [L564] CALL cstrcmp(nondetString1,nondetString2) [L542] unsigned char uc1, uc2; [L543] EXPR, FCALL \read(*s1) [L543] *s1 != '\0' && *s1 == *s2 [L543] FCALL \read(*s1) - 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: [L552] int length1 = __VERIFIER_nondet_int(); [L553] int length2 = __VERIFIER_nondet_int(); [L554] COND TRUE length1 < 1 [L555] length1 = 1 [L557] COND TRUE length2 < 1 [L558] length2 = 1 [L560] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L560] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L561] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L561] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L562] FCALL nondetString1[length1-1] = '\0' [L563] FCALL nondetString2[length2-1] = '\0' [L564] CALL cstrcmp(nondetString1,nondetString2) [L542] unsigned char uc1, uc2; [L543] EXPR, FCALL \read(*s1) [L543] *s1 != '\0' && *s1 == *s2 [L543] COND FALSE !(*s1 != '\0' && *s1 == *s2) [L547] FCALL \read(*s1) - 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: [L552] int length1 = __VERIFIER_nondet_int(); [L553] int length2 = __VERIFIER_nondet_int(); [L554] COND TRUE length1 < 1 [L555] length1 = 1 [L557] COND TRUE length2 < 1 [L558] length2 = 1 [L560] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L560] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L561] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L561] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L562] FCALL nondetString1[length1-1] = '\0' [L563] FCALL nondetString2[length2-1] = '\0' [L564] CALL cstrcmp(nondetString1,nondetString2) [L542] unsigned char uc1, uc2; [L543] EXPR, FCALL \read(*s1) [L543] *s1 != '\0' && *s1 == *s2 [L543] FCALL \read(*s1) [L543] FCALL \read(*s2) - 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: [L552] int length1 = __VERIFIER_nondet_int(); [L553] int length2 = __VERIFIER_nondet_int(); [L554] COND TRUE length1 < 1 [L555] length1 = 1 [L557] COND TRUE length2 < 1 [L558] length2 = 1 [L560] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L560] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L561] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L561] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L562] FCALL nondetString1[length1-1] = '\0' [L563] FCALL nondetString2[length2-1] = '\0' [L564] CALL cstrcmp(nondetString1,nondetString2) [L542] unsigned char uc1, uc2; [L543] EXPR, FCALL \read(*s1) [L543] *s1 != '\0' && *s1 == *s2 [L543] COND FALSE !(*s1 != '\0' && *s1 == *s2) [L547] EXPR, FCALL \read(*s1) [L547] uc1 = (*(unsigned char *) s1) [L548] FCALL \read(*s2) - UnprovableResult [Line: 551]: 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: [L552] int length1 = __VERIFIER_nondet_int(); [L553] int length2 = __VERIFIER_nondet_int(); [L554] COND TRUE length1 < 1 [L555] length1 = 1 [L557] COND TRUE length2 < 1 [L558] length2 = 1 [L560] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L560] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L561] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L561] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L562] FCALL nondetString1[length1-1] = '\0' [L563] FCALL nondetString2[length2-1] = '\0' [L564] CALL, EXPR cstrcmp(nondetString1,nondetString2) [L542] unsigned char uc1, uc2; [L543] EXPR, FCALL \read(*s1) [L543] *s1 != '\0' && *s1 == *s2 [L543] COND FALSE !(*s1 != '\0' && *s1 == *s2) [L547] EXPR, FCALL \read(*s1) [L547] uc1 = (*(unsigned char *) s1) [L548] EXPR, FCALL \read(*s2) [L548] uc2 = (*(unsigned char *) s2) [L549] COND TRUE, EXPR (uc1 < uc2) ? -1 : (uc1 > uc2) [L549] RET return ((uc1 < uc2) ? -1 : (uc1 > uc2)); [L564] EXPR cstrcmp(nondetString1,nondetString2) [L564] return cstrcmp(nondetString1,nondetString2); - 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 * 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/cstrcmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-25_04-03-46-451.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-25_04-03-46-451.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcmp-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_04-03-46-451.csv Received shutdown request...