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/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-examples/relax_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:37:11,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:37:11,602 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:37:11,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:37:11,611 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:37:11,612 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:37:11,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:37:11,614 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:37:11,615 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:37:11,616 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:37:11,616 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:37:11,617 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:37:11,617 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:37:11,618 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:37:11,619 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:37:11,621 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:37:11,622 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:37:11,624 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:37:11,625 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:37:11,625 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:37:11,627 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:37:11,631 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:37:11,631 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:37:11,631 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 10:37:11,640 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:37:11,641 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:37:11,641 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:37:11,642 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:37:11,642 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:37:11,642 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:37:11,642 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:37:11,642 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:37:11,642 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:37:11,643 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:37:11,643 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:37:11,643 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:37:11,643 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:37:11,643 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:37:11,643 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:37:11,643 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:37:11,643 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:37:11,644 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:37:11,644 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:37:11,644 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:37:11,644 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:37:11,644 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:37:11,644 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:37:11,644 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:37:11,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:37:11,682 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:37:11,685 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:37:11,686 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:37:11,686 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:37:11,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/relax_false-valid-deref.i [2018-02-02 10:37:11,833 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:37:11,835 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:37:11,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:37:11,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:37:11,841 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:37:11,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:11,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6525d2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11, skipping insertion in model container [2018-02-02 10:37:11,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:11,856 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:37:11,878 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:37:11,958 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:37:11,974 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:37:11,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11 WrapperNode [2018-02-02 10:37:11,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:37:11,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:37:11,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:37:11,983 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:37:11,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:11,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:12,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:12,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:12,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:12,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:12,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (1/1) ... [2018-02-02 10:37:12,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:37:12,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:37:12,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:37:12,011 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:37:12,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (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 10:37:12,050 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:37:12,050 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:37:12,050 INFO L136 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-02-02 10:37:12,050 INFO L136 BoogieDeclarations]: Found implementation of procedure is_relaxed_prefix [2018-02-02 10:37:12,050 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:37:12,050 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure is_relaxed_prefix [2018-02-02 10:37:12,051 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:37:12,052 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:37:12,052 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:37:12,358 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:37:12,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:37:12 BoogieIcfgContainer [2018-02-02 10:37:12,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:37:12,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:37:12,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:37:12,361 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:37:12,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:37:11" (1/3) ... [2018-02-02 10:37:12,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da3b91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:37:12, skipping insertion in model container [2018-02-02 10:37:12,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:37:11" (2/3) ... [2018-02-02 10:37:12,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da3b91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:37:12, skipping insertion in model container [2018-02-02 10:37:12,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:37:12" (3/3) ... [2018-02-02 10:37:12,364 INFO L107 eAbstractionObserver]: Analyzing ICFG relax_false-valid-deref.i [2018-02-02 10:37:12,370 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:37:12,375 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-02-02 10:37:12,399 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:37:12,399 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:37:12,399 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:37:12,399 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:37:12,399 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:37:12,400 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:37:12,400 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:37:12,400 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:37:12,400 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:37:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-02-02 10:37:12,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-02 10:37:12,419 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:37:12,420 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:37:12,420 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]=== [2018-02-02 10:37:12,423 INFO L82 PathProgramCache]: Analyzing trace with hash 74559662, now seen corresponding path program 1 times [2018-02-02 10:37:12,455 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:37:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 10:37:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 10:37:12,574 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-02 10:37:12,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 10:37:12 BoogieIcfgContainer [2018-02-02 10:37:12,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 10:37:12,657 INFO L168 Benchmark]: Toolchain (without parser) took 823.64 ms. Allocated memory was 400.6 MB in the beginning and 605.0 MB in the end (delta: 204.5 MB). Free memory was 357.4 MB in the beginning and 577.6 MB in the end (delta: -220.1 MB). Peak memory consumption was 77.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:37:12,659 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 400.6 MB. Free memory is still 364.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:37:12,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.89 ms. Allocated memory is still 400.6 MB. Free memory was 357.4 MB in the beginning and 346.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:37:12,659 INFO L168 Benchmark]: Boogie Preprocessor took 28.36 ms. Allocated memory is still 400.6 MB. Free memory was 346.9 MB in the beginning and 344.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:37:12,660 INFO L168 Benchmark]: RCFGBuilder took 347.67 ms. Allocated memory is still 400.6 MB. Free memory was 344.2 MB in the beginning and 315.5 MB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 5.3 GB. [2018-02-02 10:37:12,660 INFO L168 Benchmark]: TraceAbstraction took 297.49 ms. Allocated memory was 400.6 MB in the beginning and 605.0 MB in the end (delta: 204.5 MB). Free memory was 315.5 MB in the beginning and 577.6 MB in the end (delta: -262.0 MB). Peak memory consumption was 35.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:37:12,662 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 400.6 MB. Free memory is still 364.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 146.89 ms. Allocated memory is still 400.6 MB. Free memory was 357.4 MB in the beginning and 346.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.36 ms. Allocated memory is still 400.6 MB. Free memory was 346.9 MB in the beginning and 344.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 347.67 ms. Allocated memory is still 400.6 MB. Free memory was 344.2 MB in the beginning and 315.5 MB in the end (delta: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 297.49 ms. Allocated memory was 400.6 MB in the beginning and 605.0 MB in the end (delta: 204.5 MB). Free memory was 315.5 MB in the beginning and 577.6 MB in the end (delta: -262.0 MB). Peak memory consumption was 35.3 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=536870912, malloc(sizeof(int)*pat_len)={2147483656:0}, pat_len=536870913] [L585] int *pat=malloc(sizeof(int)*pat_len); VAL [a_len=536870912, malloc(sizeof(int)*pat_len)={2147483656:0}, pat={2147483656:0}, pat_len=536870913] [L586] EXPR, FCALL malloc(sizeof(int)*a_len) VAL [a_len=536870912, malloc(sizeof(int)*a_len)={2147483655:0}, malloc(sizeof(int)*pat_len)={2147483656:0}, pat={2147483656:0}, pat_len=536870913] [L586] int *a=malloc(sizeof(int)*a_len); VAL [a={2147483655:0}, a_len=536870912, malloc(sizeof(int)*a_len)={2147483655:0}, malloc(sizeof(int)*pat_len)={2147483656:0}, pat={2147483656:0}, pat_len=536870913] [L587] CALL is_relaxed_prefix(pat, pat_len, a, a_len) VAL [\old(a_length)=536870912, \old(pat_length)=536870913, a={2147483655:0}, pat={2147483656:0}] [L564] COND FALSE !(pat_length>a_length+1) [L566] int shift=0; [L567] int i=0; VAL [\old(a_length)=536870912, \old(pat_length)=536870913, a={2147483655:0}, a={2147483655:0}, a_length=536870912, i=0, pat={2147483656:0}, pat={2147483656:0}, pat_length=536870913, shift=0] [L567] COND TRUE i