java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-memsafety/reverse_array_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:41:26,619 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:41:26,621 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:41:26,635 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:41:26,635 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:41:26,636 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:41:26,637 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:41:26,639 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:41:26,641 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:41:26,641 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:41:26,642 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:41:26,643 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:41:26,644 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:41:26,645 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:41:26,646 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:41:26,647 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:41:26,648 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:41:26,649 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:41:26,655 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:41:26,659 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:41:26,660 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:41:26,663 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:41:26,669 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:41:26,669 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:41:26,669 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:41:26,670 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:41:26,671 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:41:26,675 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:41:26,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:41:26,678 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:41:26,679 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:41:26,680 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:41:26,680 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:41:26,680 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:41:26,681 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:41:26,684 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:41:26,684 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:41:26,712 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:41:26,712 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:41:26,713 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:41:26,715 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:41:26,715 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:41:26,715 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:41:26,715 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:41:26,716 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:41:26,716 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:41:26,716 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:41:26,716 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:41:26,716 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:41:26,717 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:41:26,717 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:41:26,717 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:41:26,718 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:41:26,718 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:41:26,718 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:41:26,718 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:41:26,719 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:41:26,720 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:41:26,720 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:41:26,720 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:41:26,721 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:41:26,721 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:41:26,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:41:26,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:41:26,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:41:26,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:41:26,793 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:41:26,793 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:41:26,794 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/reverse_array_unsafe_false-valid-deref.i [2018-10-10 14:41:27,121 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/517ead127/bec5a5d784f94017bb6c2ca37c69bd91/FLAG67e2fd6d6 [2018-10-10 14:41:27,393 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:41:27,394 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-memsafety/reverse_array_unsafe_false-valid-deref.i [2018-10-10 14:41:27,407 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/517ead127/bec5a5d784f94017bb6c2ca37c69bd91/FLAG67e2fd6d6 [2018-10-10 14:41:27,423 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/517ead127/bec5a5d784f94017bb6c2ca37c69bd91 [2018-10-10 14:41:27,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:41:27,435 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:41:27,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:27,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:41:27,440 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:41:27,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:27,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e874cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27, skipping insertion in model container [2018-10-10 14:41:27,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:27,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:41:27,500 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:41:27,734 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:27,750 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:41:27,855 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:41:27,919 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:41:27,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27 WrapperNode [2018-10-10 14:41:27,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:41:27,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:27,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:41:27,921 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:41:27,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:27,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:27,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:41:27,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:41:27,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:41:27,982 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:41:27,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:27,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:28,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:28,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:28,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:28,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:28,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... [2018-10-10 14:41:28,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:41:28,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:41:28,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:41:28,039 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:41:28,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (1/1) ... No working directory specified, using /storage/repos/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 [2018-10-10 14:41:28,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:41:28,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:41:29,274 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:41:29,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:29 BoogieIcfgContainer [2018-10-10 14:41:29,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:41:29,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:41:29,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:41:29,280 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:41:29,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:41:27" (1/3) ... [2018-10-10 14:41:29,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d51e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:29, skipping insertion in model container [2018-10-10 14:41:29,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:41:27" (2/3) ... [2018-10-10 14:41:29,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d51e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:41:29, skipping insertion in model container [2018-10-10 14:41:29,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:41:29" (3/3) ... [2018-10-10 14:41:29,283 INFO L112 eAbstractionObserver]: Analyzing ICFG reverse_array_unsafe_false-valid-deref.i [2018-10-10 14:41:29,293 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:41:29,302 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-10-10 14:41:29,319 INFO L257 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2018-10-10 14:41:29,347 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:41:29,348 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:41:29,348 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:41:29,349 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:41:29,349 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:41:29,349 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:41:29,349 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:41:29,350 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:41:29,350 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:41:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2018-10-10 14:41:29,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-10 14:41:29,383 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:29,385 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:29,388 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:29,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:29,396 INFO L82 PathProgramCache]: Analyzing trace with hash 588333945, now seen corresponding path program 1 times [2018-10-10 14:41:29,398 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:29,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:29,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:29,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:29,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:29,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:29,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:29,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:41:29,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:41:29,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:41:29,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:41:29,742 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 6 states. [2018-10-10 14:41:30,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:30,630 INFO L93 Difference]: Finished difference Result 221 states and 227 transitions. [2018-10-10 14:41:30,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:41:30,632 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-10-10 14:41:30,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:30,646 INFO L225 Difference]: With dead ends: 221 [2018-10-10 14:41:30,647 INFO L226 Difference]: Without dead ends: 216 [2018-10-10 14:41:30,648 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:41:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-10-10 14:41:30,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 195. [2018-10-10 14:41:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-10-10 14:41:30,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 200 transitions. [2018-10-10 14:41:30,698 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 200 transitions. Word has length 35 [2018-10-10 14:41:30,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:30,699 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 200 transitions. [2018-10-10 14:41:30,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:41:30,699 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2018-10-10 14:41:30,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-10 14:41:30,700 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:30,700 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:30,701 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:30,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:30,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1058267678, now seen corresponding path program 1 times [2018-10-10 14:41:30,702 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:30,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:30,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:30,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:30,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:41:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:41:30,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:41:30,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:41:30,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:41:30,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:41:30,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:41:30,852 INFO L87 Difference]: Start difference. First operand 195 states and 200 transitions. Second operand 6 states. [2018-10-10 14:41:31,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:41:31,372 INFO L93 Difference]: Finished difference Result 230 states and 237 transitions. [2018-10-10 14:41:31,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:41:31,376 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-10-10 14:41:31,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:41:31,378 INFO L225 Difference]: With dead ends: 230 [2018-10-10 14:41:31,378 INFO L226 Difference]: Without dead ends: 230 [2018-10-10 14:41:31,379 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:41:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-10-10 14:41:31,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 193. [2018-10-10 14:41:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-10-10 14:41:31,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 198 transitions. [2018-10-10 14:41:31,400 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 198 transitions. Word has length 36 [2018-10-10 14:41:31,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:41:31,403 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 198 transitions. [2018-10-10 14:41:31,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:41:31,404 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2018-10-10 14:41:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-10 14:41:31,405 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:41:31,405 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:41:31,407 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:41:31,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:41:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1058483200, now seen corresponding path program 1 times [2018-10-10 14:41:31,411 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:41:31,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:41:31,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:31,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:41:31,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:41:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-10 14:41:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-10 14:41:31,491 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-10 14:41:31,505 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,507 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,507 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,507 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,508 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,510 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,510 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,511 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,511 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,511 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,512 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,512 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,512 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,513 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,513 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,513 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,514 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,514 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,514 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 14:41:31,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:41:31 BoogieIcfgContainer [2018-10-10 14:41:31,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:41:31,532 INFO L168 Benchmark]: Toolchain (without parser) took 4097.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -649.3 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:31,534 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:31,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:31,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.70 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:31,536 INFO L168 Benchmark]: Boogie Preprocessor took 56.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:41:31,536 INFO L168 Benchmark]: RCFGBuilder took 1236.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -764.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:31,537 INFO L168 Benchmark]: TraceAbstraction took 2254.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 93.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:41:31,542 INFO L336 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 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 484.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.70 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1236.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -764.0 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2254.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 93.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * 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: [L541] int i, j, tmp; [L542] int length = __VERIFIER_nondet_int(); [L543] COND FALSE !(length < 1) [L544] COND FALSE !(length % 2 == 0) [L545] EXPR, FCALL __builtin_alloca (length) [L545] int *arr = __builtin_alloca (length); [L546] i=0 [L546] COND TRUE i