java -ea -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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 17:22:31,609 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 17:22:31,611 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 17:22:31,625 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 17:22:31,626 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 17:22:31,631 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 17:22:31,632 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 17:22:31,634 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 17:22:31,637 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 17:22:31,643 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 17:22:31,644 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 17:22:31,647 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 17:22:31,648 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 17:22:31,651 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 17:22:31,652 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 17:22:31,653 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 17:22:31,654 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 17:22:31,659 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 17:22:31,663 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 17:22:31,667 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 17:22:31,668 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 17:22:31,671 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 17:22:31,676 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 17:22:31,690 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-14 17:22:31,717 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 17:22:31,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 17:22:31,718 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 17:22:31,719 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 17:22:31,719 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 17:22:31,719 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 17:22:31,720 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 17:22:31,721 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 17:22:31,721 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 17:22:31,721 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 17:22:31,721 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 17:22:31,721 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 17:22:31,722 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 17:22:31,722 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 17:22:31,722 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 17:22:31,722 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 17:22:31,722 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 17:22:31,724 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 17:22:31,724 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 17:22:31,724 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 17:22:31,724 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 17:22:31,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 17:22:31,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 17:22:31,725 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 17:22:31,725 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 17:22:31,725 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 17:22:31,726 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 17:22:31,726 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 17:22:31,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 17:22:31,727 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 17:22:31,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 17:22:31,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 17:22:31,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 17:22:31,814 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 17:22:31,815 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 17:22:31,816 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i [2018-11-14 17:22:31,885 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4067715/25b5e7fd6d154a7787638f684def614b/FLAGb8c68c400 [2018-11-14 17:22:32,327 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 17:22:32,327 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/recursive_list_true-termination.c_false-unreach-call.i [2018-11-14 17:22:32,335 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4067715/25b5e7fd6d154a7787638f684def614b/FLAGb8c68c400 [2018-11-14 17:22:32,355 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4067715/25b5e7fd6d154a7787638f684def614b [2018-11-14 17:22:32,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 17:22:32,368 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 17:22:32,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 17:22:32,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 17:22:32,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 17:22:32,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c00ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32, skipping insertion in model container [2018-11-14 17:22:32,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 17:22:32,417 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 17:22:32,636 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:22:32,659 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 17:22:32,690 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:22:32,718 INFO L195 MainTranslator]: Completed translation [2018-11-14 17:22:32,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32 WrapperNode [2018-11-14 17:22:32,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 17:22:32,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 17:22:32,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 17:22:32,720 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 17:22:32,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (1/1) ... [2018-11-14 17:22:32,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 17:22:32,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 17:22:32,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 17:22:32,770 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 17:22:32,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (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 [2018-11-14 17:22:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 17:22:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 17:22:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2018-11-14 17:22:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_memory [2018-11-14 17:22:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2018-11-14 17:22:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 17:22:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 17:22:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-14 17:22:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure err [2018-11-14 17:22:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_memory [2018-11-14 17:22:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 17:22:32,915 INFO L130 BoogieDeclarations]: Found specification of procedure append [2018-11-14 17:22:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-14 17:22:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-14 17:22:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 17:22:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-14 17:22:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-14 17:22:32,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 17:22:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 17:22:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 17:22:32,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-14 17:22:33,455 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 17:22:33,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:22:33 BoogieIcfgContainer [2018-11-14 17:22:33,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 17:22:33,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 17:22:33,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 17:22:33,460 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 17:22:33,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:22:32" (1/3) ... [2018-11-14 17:22:33,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dda636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:22:33, skipping insertion in model container [2018-11-14 17:22:33,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:32" (2/3) ... [2018-11-14 17:22:33,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79dda636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:22:33, skipping insertion in model container [2018-11-14 17:22:33,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:22:33" (3/3) ... [2018-11-14 17:22:33,465 INFO L112 eAbstractionObserver]: Analyzing ICFG recursive_list_true-termination.c_false-unreach-call.i [2018-11-14 17:22:33,475 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 17:22:33,486 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 17:22:33,506 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 17:22:33,542 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 17:22:33,543 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 17:22:33,545 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 17:22:33,545 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 17:22:33,547 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 17:22:33,547 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 17:22:33,548 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 17:22:33,548 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 17:22:33,548 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 17:22:33,575 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-14 17:22:33,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-14 17:22:33,589 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:22:33,591 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:22:33,594 INFO L423 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:22:33,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:22:33,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1715006850, now seen corresponding path program 1 times [2018-11-14 17:22:33,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:22:33,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:22:33,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:22:33,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:22:33,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:22:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 17:22:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 17:22:33,920 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-14 17:22:33,998 WARN L170 areAnnotationChecker]: allocate_memoryENTRY has no Hoare annotation [2018-11-14 17:22:33,999 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2018-11-14 17:22:33,999 WARN L170 areAnnotationChecker]: errENTRY has no Hoare annotation [2018-11-14 17:22:33,999 WARN L170 areAnnotationChecker]: errENTRY has no Hoare annotation [2018-11-14 17:22:33,999 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 17:22:33,999 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 17:22:34,000 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-14 17:22:34,000 WARN L170 areAnnotationChecker]: appendENTRY has no Hoare annotation [2018-11-14 17:22:34,000 WARN L170 areAnnotationChecker]: allocate_memoryFINAL has no Hoare annotation [2018-11-14 17:22:34,000 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 17:22:34,000 WARN L170 areAnnotationChecker]: errFINAL has no Hoare annotation [2018-11-14 17:22:34,000 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 17:22:34,000 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 17:22:34,001 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2018-11-14 17:22:34,001 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2018-11-14 17:22:34,001 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2018-11-14 17:22:34,001 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2018-11-14 17:22:34,001 WARN L170 areAnnotationChecker]: allocate_memoryEXIT has no Hoare annotation [2018-11-14 17:22:34,002 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 17:22:34,002 WARN L170 areAnnotationChecker]: errEXIT has no Hoare annotation [2018-11-14 17:22:34,002 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 17:22:34,002 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2018-11-14 17:22:34,002 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2018-11-14 17:22:34,002 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2018-11-14 17:22:34,003 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2018-11-14 17:22:34,003 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2018-11-14 17:22:34,003 WARN L170 areAnnotationChecker]: appendFINAL has no Hoare annotation [2018-11-14 17:22:34,003 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 17:22:34,003 WARN L170 areAnnotationChecker]: L43-1 has no Hoare annotation [2018-11-14 17:22:34,004 WARN L170 areAnnotationChecker]: appendEXIT has no Hoare annotation [2018-11-14 17:22:34,004 WARN L170 areAnnotationChecker]: appendEXIT has no Hoare annotation [2018-11-14 17:22:34,004 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 17:22:34,004 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2018-11-14 17:22:34,004 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2018-11-14 17:22:34,004 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2018-11-14 17:22:34,005 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2018-11-14 17:22:34,005 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 17:22:34,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:22:34 BoogieIcfgContainer [2018-11-14 17:22:34,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 17:22:34,010 INFO L168 Benchmark]: Toolchain (without parser) took 1643.54 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 669.0 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -674.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 17:22:34,013 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-11-14 17:22:34,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.28 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-14 17:22:34,014 INFO L168 Benchmark]: Boogie Preprocessor took 50.33 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. [2018-11-14 17:22:34,015 INFO L168 Benchmark]: RCFGBuilder took 685.64 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 669.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -699.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2018-11-14 17:22:34,016 INFO L168 Benchmark]: TraceAbstraction took 552.05 ms. Allocated memory is still 2.1 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-14 17:22:34,021 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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. * CACSL2BoogieTranslator took 350.28 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.33 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 685.64 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 669.0 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -699.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 552.05 ms. Allocated memory is still 2.1 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int i = 1; VAL [\old(i)=12, i=1] [L37] struct list *l,m; [L38] l = &m [L39] FCALL l->next = 0 [L40] FCALL l->n = 0 VAL [i=1, l={11:0}, m={11:0}] [L42] CALL, EXPR append(l, 1) VAL [\old(n)=1, i=1, l={11:0}] [L25] struct list *new_el; VAL [\old(n)=1, i=1, l={11:0}, l={11:0}, n=1] [L27] CALL, EXPR allocate_memory() VAL [i=1] [L20] EXPR, FCALL malloc(8U) [L20] RET return malloc(8U); VAL [\result={10:0}, i=1, malloc(8U)={10:0}] [L27] EXPR allocate_memory() VAL [\old(n)=1, allocate_memory()={10:0}, i=1, l={11:0}, l={11:0}, n=1] [L27] new_el = allocate_memory() [L29] FCALL new_el->n = n [L30] FCALL new_el->next = l [L32] RET return new_el; VAL [\old(n)=1, \result={10:0}, i=1, l={11:0}, l={11:0}, n=1, new_el={10:0}] [L42] EXPR append(l, 1) VAL [append(l, 1)={10:0}, i=1, l={11:0}, m={11:0}] [L42] l = append(l, 1) [L43] CALL, EXPR append(l, 2) VAL [\old(n)=2, i=1, l={10:0}] [L25] struct list *new_el; VAL [\old(n)=2, i=1, l={10:0}, l={10:0}, n=2] [L27] CALL, EXPR allocate_memory() VAL [i=1] [L20] EXPR, FCALL malloc(8U) [L20] RET return malloc(8U); VAL [\result={13:0}, i=1, malloc(8U)={13:0}] [L27] EXPR allocate_memory() VAL [\old(n)=2, allocate_memory()={13:0}, i=1, l={10:0}, l={10:0}, n=2] [L27] new_el = allocate_memory() [L29] FCALL new_el->n = n [L30] FCALL new_el->next = l [L32] RET return new_el; VAL [\old(n)=2, \result={13:0}, i=1, l={10:0}, l={10:0}, n=2, new_el={13:0}] [L43] EXPR append(l, 2) VAL [append(l, 2)={13:0}, i=1, l={10:0}, m={11:0}] [L43] l = append(l, 2) [L48] EXPR, FCALL l->next [L48] EXPR, FCALL l->next->next [L48] EXPR, FCALL l->next->next->n VAL [i=1, l={13:0}, l->next={10:0}, l->next->next={11:0}, l->next->next->n=0, m={11:0}] [L48] COND TRUE l->next->next->n == 0 [L48] CALL err() VAL [i=1] [L8] __VERIFIER_error() VAL [i=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 29 NumberOfCodeBlocks, 29 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! Received shutdown request...