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/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+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 02:49:39,995 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 02:49:39,997 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 02:49:40,011 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 02:49:40,011 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 02:49:40,012 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 02:49:40,014 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 02:49:40,017 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 02:49:40,019 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 02:49:40,020 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 02:49:40,022 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 02:49:40,022 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 02:49:40,023 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 02:49:40,024 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 02:49:40,025 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 02:49:40,036 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 02:49:40,038 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 02:49:40,040 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 02:49:40,041 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 02:49:40,043 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 02:49:40,045 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 02:49:40,045 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 02:49:40,046 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 02:49:40,047 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 02:49:40,048 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 02:49:40,049 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 02:49:40,049 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 02:49:40,050 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 02:49:40,050 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 02:49:40,051 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 02:49:40,051 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 02:49:40,051 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-25 02:49:40,072 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 02:49:40,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 02:49:40,075 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 02:49:40,075 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 02:49:40,075 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 02:49:40,075 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 02:49:40,076 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 02:49:40,076 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 02:49:40,076 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 02:49:40,077 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 02:49:40,077 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 02:49:40,077 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 02:49:40,077 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 02:49:40,077 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 02:49:40,078 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 02:49:40,078 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 02:49:40,078 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 02:49:40,079 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 02:49:40,079 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 02:49:40,079 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 02:49:40,079 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 02:49:40,079 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 02:49:40,079 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 02:49:40,080 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 02:49:40,081 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 02:49:40,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 02:49:40,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 02:49:40,082 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 02:49:40,082 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 02:49:40,082 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 02:49:40,082 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 02:49:40,083 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 02:49:40,083 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 02:49:40,083 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 02:49:40,083 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 02:49:40,084 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 02:49:40,084 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 02:49:40,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 02:49:40,156 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 02:49:40,160 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 02:49:40,163 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 02:49:40,164 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 02:49:40,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/relax_false-valid-deref.i [2018-01-25 02:49:40,404 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 02:49:40,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 02:49:40,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 02:49:40,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 02:49:40,419 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 02:49:40,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bda4018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40, skipping insertion in model container [2018-01-25 02:49:40,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,444 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 02:49:40,500 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 02:49:40,641 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 02:49:40,676 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 02:49:40,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40 WrapperNode [2018-01-25 02:49:40,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 02:49:40,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 02:49:40,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 02:49:40,690 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 02:49:40,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (1/1) ... [2018-01-25 02:49:40,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 02:49:40,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 02:49:40,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 02:49:40,735 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 02:49:40,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (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 02:49:40,798 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 02:49:40,799 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 02:49:40,799 INFO L136 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-01-25 02:49:40,799 INFO L136 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2018-01-25 02:49:40,799 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 02:49:40,799 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 02:49:40,799 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 02:49:40,799 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 02:49:40,799 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 02:49:40,800 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 02:49:40,801 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 02:49:41,303 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 02:49:41,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 02:49:41 BoogieIcfgContainer [2018-01-25 02:49:41,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 02:49:41,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 02:49:41,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 02:49:41,308 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 02:49:41,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 02:49:40" (1/3) ... [2018-01-25 02:49:41,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382ccddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 02:49:41, skipping insertion in model container [2018-01-25 02:49:41,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:49:40" (2/3) ... [2018-01-25 02:49:41,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382ccddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 02:49:41, skipping insertion in model container [2018-01-25 02:49:41,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 02:49:41" (3/3) ... [2018-01-25 02:49:41,313 INFO L105 eAbstractionObserver]: Analyzing ICFG relax_false-valid-deref.i [2018-01-25 02:49:41,323 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 02:49:41,332 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-01-25 02:49:41,381 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 02:49:41,382 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 02:49:41,382 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 02:49:41,382 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 02:49:41,382 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 02:49:41,382 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 02:49:41,382 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 02:49:41,383 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 02:49:41,384 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 02:49:41,409 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-01-25 02:49:41,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 02:49:41,415 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:49:41,416 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:49:41,417 INFO L371 AbstractCegarLoop]: === Iteration 1 === [is_relaxed_prefixErr3RequiresViolation, is_relaxed_prefixErr0RequiresViolation, is_relaxed_prefixErr2RequiresViolation, is_relaxed_prefixErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr20EnsuresViolation, mainErr9RequiresViolation, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, mainErr19RequiresViolation]=== [2018-01-25 02:49:41,420 INFO L82 PathProgramCache]: Analyzing trace with hash 74559662, now seen corresponding path program 1 times [2018-01-25 02:49:41,422 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:49:41,466 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:49:41,467 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:49:41,467 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:49:41,467 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:49:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-25 02:49:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-25 02:49:41,687 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-25 02:49:41,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 02:49:41 BoogieIcfgContainer [2018-01-25 02:49:41,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 02:49:41,755 INFO L168 Benchmark]: Toolchain (without parser) took 1349.94 ms. Allocated memory was 302.0 MB in the beginning and 332.4 MB in the end (delta: 30.4 MB). Free memory was 260.9 MB in the beginning and 296.1 MB in the end (delta: -35.2 MB). Peak memory consumption was 70.8 MB. Max. memory is 5.3 GB. [2018-01-25 02:49:41,756 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 02:49:41,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.39 ms. Allocated memory is still 302.0 MB. Free memory was 260.9 MB in the beginning and 248.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:49:41,758 INFO L168 Benchmark]: Boogie Preprocessor took 44.34 ms. Allocated memory is still 302.0 MB. Free memory was 248.9 MB in the beginning and 246.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:49:41,758 INFO L168 Benchmark]: RCFGBuilder took 570.20 ms. Allocated memory is still 302.0 MB. Free memory was 246.9 MB in the beginning and 220.0 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 5.3 GB. [2018-01-25 02:49:41,759 INFO L168 Benchmark]: TraceAbstraction took 447.81 ms. Allocated memory was 302.0 MB in the beginning and 332.4 MB in the end (delta: 30.4 MB). Free memory was 220.0 MB in the beginning and 297.0 MB in the end (delta: -77.0 MB). Peak memory consumption was 29.9 MB. Max. memory is 5.3 GB. [2018-01-25 02:49:41,762 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 277.39 ms. Allocated memory is still 302.0 MB. Free memory was 260.9 MB in the beginning and 248.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 44.34 ms. Allocated memory is still 302.0 MB. Free memory was 248.9 MB in the beginning and 246.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 570.20 ms. Allocated memory is still 302.0 MB. Free memory was 246.9 MB in the beginning and 220.0 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 447.81 ms. Allocated memory was 302.0 MB in the beginning and 332.4 MB in the end (delta: 30.4 MB). Free memory was 220.0 MB in the beginning and 297.0 MB in the end (delta: -77.0 MB). Peak memory consumption was 29.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: pointer dereference may fail pointer dereference may fail We found a 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) VAL [a_len=3758096383, malloc(sizeof(int)*pat_len)={3758096385:0}, pat_len=1073741824] [L585] int *pat=malloc(sizeof(int)*pat_len); VAL [a_len=3758096383, malloc(sizeof(int)*pat_len)={3758096385:0}, pat={3758096385:0}, pat_len=1073741824] [L586] EXPR, FCALL malloc(sizeof(int)*a_len) VAL [a_len=3758096383, malloc(sizeof(int)*a_len)={3758096387:0}, malloc(sizeof(int)*pat_len)={3758096385:0}, pat={3758096385:0}, pat_len=1073741824] [L586] int *a=malloc(sizeof(int)*a_len); VAL [a={3758096387:0}, a_len=3758096383, malloc(sizeof(int)*a_len)={3758096387:0}, malloc(sizeof(int)*pat_len)={3758096385:0}, pat={3758096385:0}, pat_len=1073741824] [L587] CALL is_relaxed_prefix(pat, pat_len, a, a_len) VAL [\old(a_length)=3758096383, \old(pat_length)=1073741824, a={3758096387:0}, pat={3758096385:0}] [L564] COND FALSE !(pat_length>a_length+1) [L566] int shift=0; [L567] int i=0; VAL [\old(a_length)=3758096383, \old(pat_length)=1073741824, a={3758096387:0}, a={3758096387:0}, a_length=3758096383, i=0, pat={3758096385:0}, pat={3758096385:0}, pat_length=1073741824, shift=0] [L567] COND TRUE i