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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/stroeder1_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 20:58:55,748 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 20:58:55,750 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 20:58:55,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 20:58:55,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 20:58:55,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 20:58:55,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 20:58:55,763 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 20:58:55,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 20:58:55,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 20:58:55,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 20:58:55,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 20:58:55,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 20:58:55,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 20:58:55,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 20:58:55,771 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 20:58:55,773 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 20:58:55,775 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 20:58:55,776 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 20:58:55,777 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 20:58:55,778 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 20:58:55,779 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 20:58:55,779 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 20:58:55,780 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 20:58:55,781 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 20:58:55,782 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 20:58:55,782 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 20:58:55,782 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 20:58:55,783 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 20:58:55,783 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 20:58:55,783 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 20:58:55,783 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 20:58:55,793 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 20:58:55,793 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 20:58:55,794 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 20:58:55,794 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 20:58:55,795 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 20:58:55,795 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 20:58:55,795 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 20:58:55,795 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 20:58:55,795 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 20:58:55,795 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 20:58:55,795 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 20:58:55,796 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 20:58:55,796 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 20:58:55,796 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 20:58:55,796 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 20:58:55,796 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 20:58:55,796 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 20:58:55,796 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 20:58:55,797 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 20:58:55,797 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 20:58:55,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 20:58:55,797 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 20:58:55,797 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 20:58:55,797 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 20:58:55,797 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 20:58:55,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 20:58:55,836 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 20:58:55,840 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 20:58:55,841 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 20:58:55,842 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 20:58:55,842 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/stroeder1_unsafe_false-valid-deref.i [2018-02-02 20:58:55,938 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 20:58:55,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 20:58:55,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 20:58:55,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 20:58:55,945 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 20:58:55,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:58:55" (1/1) ... [2018-02-02 20:58:55,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a750568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:55, skipping insertion in model container [2018-02-02 20:58:55,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 08:58:55" (1/1) ... [2018-02-02 20:58:55,964 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 20:58:55,978 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 20:58:56,069 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 20:58:56,081 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 20:58:56,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56 WrapperNode [2018-02-02 20:58:56,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 20:58:56,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 20:58:56,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 20:58:56,085 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 20:58:56,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (1/1) ... [2018-02-02 20:58:56,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (1/1) ... [2018-02-02 20:58:56,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (1/1) ... [2018-02-02 20:58:56,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (1/1) ... [2018-02-02 20:58:56,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (1/1) ... [2018-02-02 20:58:56,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (1/1) ... [2018-02-02 20:58:56,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (1/1) ... [2018-02-02 20:58:56,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 20:58:56,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 20:58:56,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 20:58:56,106 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 20:58:56,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-02 20:58:56,141 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 20:58:56,142 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 20:58:56,142 INFO L136 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2018-02-02 20:58:56,142 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 20:58:56,142 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 20:58:56,142 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 20:58:56,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 20:58:56,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 20:58:56,142 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 20:58:56,142 INFO L128 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2018-02-02 20:58:56,142 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 20:58:56,142 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 20:58:56,143 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 20:58:56,245 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 20:58:56,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:58:56 BoogieIcfgContainer [2018-02-02 20:58:56,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 20:58:56,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 20:58:56,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 20:58:56,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 20:58:56,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 08:58:55" (1/3) ... [2018-02-02 20:58:56,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a74e923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:58:56, skipping insertion in model container [2018-02-02 20:58:56,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 08:58:56" (2/3) ... [2018-02-02 20:58:56,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a74e923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 08:58:56, skipping insertion in model container [2018-02-02 20:58:56,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 08:58:56" (3/3) ... [2018-02-02 20:58:56,251 INFO L107 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe_false-valid-deref.i [2018-02-02 20:58:56,257 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 20:58:56,262 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-02 20:58:56,288 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 20:58:56,288 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 20:58:56,288 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 20:58:56,289 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 20:58:56,289 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 20:58:56,289 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 20:58:56,289 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 20:58:56,289 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 20:58:56,290 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 20:58:56,301 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-02-02 20:58:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-02 20:58:56,310 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 20:58:56,311 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 20:58:56,311 INFO L371 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-02 20:58:56,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1614335889, now seen corresponding path program 1 times [2018-02-02 20:58:56,317 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 20:58:56,318 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 20:58:56,363 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 20:58:56,363 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 20:58:56,363 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 20:58:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 20:58:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 20:58:56,425 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-02 20:58:56,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 08:58:56 BoogieIcfgContainer [2018-02-02 20:58:56,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 20:58:56,445 INFO L168 Benchmark]: Toolchain (without parser) took 506.91 ms. Allocated memory is still 403.2 MB. Free memory was 360.9 MB in the beginning and 324.9 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 5.3 GB. [2018-02-02 20:58:56,446 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 366.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 20:58:56,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.36 ms. Allocated memory is still 403.2 MB. Free memory was 360.9 MB in the beginning and 352.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. [2018-02-02 20:58:56,447 INFO L168 Benchmark]: Boogie Preprocessor took 19.88 ms. Allocated memory is still 403.2 MB. Free memory was 352.8 MB in the beginning and 351.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 20:58:56,448 INFO L168 Benchmark]: RCFGBuilder took 140.62 ms. Allocated memory is still 403.2 MB. Free memory was 351.5 MB in the beginning and 336.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-02-02 20:58:56,448 INFO L168 Benchmark]: TraceAbstraction took 198.09 ms. Allocated memory is still 403.2 MB. Free memory was 336.9 MB in the beginning and 324.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-02-02 20:58:56,451 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 366.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 145.36 ms. Allocated memory is still 403.2 MB. Free memory was 360.9 MB in the beginning and 352.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.88 ms. Allocated memory is still 403.2 MB. Free memory was 352.8 MB in the beginning and 351.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 140.62 ms. Allocated memory is still 403.2 MB. Free memory was 351.5 MB in the beginning and 336.9 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 198.09 ms. Allocated memory is still 403.2 MB. Free memory was 336.9 MB in the beginning and 324.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 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: [L15] int* numbers; [L16] int array_size = __VERIFIER_nondet_int(); [L17] CALL sumOfThirdBytes(numbers, array_size) VAL [\old(array_size)=1, numbers={4:-2}] [L4] int i, sum; [L5] char* p; [L6] sum = 0 [L7] i = 0 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, sum=0] [L7] COND TRUE i < array_size [L8] p = &(numbers[i]) [L9] p = p + 2 VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, p={4:0}, sum=0] [L10] FCALL \read(*p) VAL [\old(array_size)=1, array_size=1, i=0, numbers={4:-2}, numbers={4:-2}, p={4:0}, sum=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 3 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_20-58-56-459.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stroeder1_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_20-58-56-459.csv Received shutdown request...