/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/recursive_list.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:23:28,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:23:28,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:23:28,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:23:28,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:23:28,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:23:28,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:23:28,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:23:28,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:23:28,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:23:28,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:23:28,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:23:28,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:23:28,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:23:28,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:23:28,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:23:28,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:23:28,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:23:28,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:23:28,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:23:28,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:23:28,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:23:28,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:23:28,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:23:28,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:23:28,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:23:28,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:23:28,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:23:28,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:23:28,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:23:28,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:23:28,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:23:28,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:23:28,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:23:28,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:23:28,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:23:28,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:23:28,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:23:28,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:23:28,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:23:28,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:23:28,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:23:28,226 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:23:28,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:23:28,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:23:28,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:23:28,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:23:28,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:23:28,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:23:28,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:23:28,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:23:28,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:23:28,230 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:23:28,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:23:28,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:23:28,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:23:28,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:23:28,231 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:23:28,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:23:28,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:23:28,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:23:28,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:23:28,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:23:28,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:23:28,232 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:23:28,499 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:23:28,513 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:23:28,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:23:28,518 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:23:28,518 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:23:28,519 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/recursive_list.i [2020-07-08 16:23:28,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7efa81558/9d48e3ff902e4a72a104a87bed012c81/FLAGc75f7bf36 [2020-07-08 16:23:29,142 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:23:29,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/recursive_list.i [2020-07-08 16:23:29,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7efa81558/9d48e3ff902e4a72a104a87bed012c81/FLAGc75f7bf36 [2020-07-08 16:23:29,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7efa81558/9d48e3ff902e4a72a104a87bed012c81 [2020-07-08 16:23:29,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:23:29,553 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:23:29,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:23:29,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:23:29,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:23:29,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b09f6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29, skipping insertion in model container [2020-07-08 16:23:29,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:23:29,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:23:29,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:23:29,788 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:23:29,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:23:29,838 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:23:29,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29 WrapperNode [2020-07-08 16:23:29,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:23:29,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:23:29,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:23:29,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:23:29,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (1/1) ... [2020-07-08 16:23:29,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:23:29,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:23:29,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:23:29,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:23:29,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (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 [2020-07-08 16:23:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:23:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:23:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-08 16:23:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_memory [2020-07-08 16:23:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2020-07-08 16:23:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:23:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:23:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 16:23:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-08 16:23:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_memory [2020-07-08 16:23:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 16:23:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure append [2020-07-08 16:23:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 16:23:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 16:23:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:23:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 16:23:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 16:23:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 16:23:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 16:23:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:23:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:23:30,510 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:23:30,510 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 16:23:30,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:23:30 BoogieIcfgContainer [2020-07-08 16:23:30,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:23:30,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:23:30,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:23:30,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:23:30,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:23:29" (1/3) ... [2020-07-08 16:23:30,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef2be4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:23:30, skipping insertion in model container [2020-07-08 16:23:30,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:29" (2/3) ... [2020-07-08 16:23:30,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ef2be4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:23:30, skipping insertion in model container [2020-07-08 16:23:30,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:23:30" (3/3) ... [2020-07-08 16:23:30,526 INFO L109 eAbstractionObserver]: Analyzing ICFG recursive_list.i [2020-07-08 16:23:30,535 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:23:30,543 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 16:23:30,556 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 16:23:30,576 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:23:30,577 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:23:30,577 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:23:30,577 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:23:30,577 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:23:30,578 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:23:30,578 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:23:30,578 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:23:30,595 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-07-08 16:23:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-08 16:23:30,609 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:23:30,610 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-08 16:23:30,611 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:23:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:23:30,618 INFO L82 PathProgramCache]: Analyzing trace with hash 2037520420, now seen corresponding path program 1 times [2020-07-08 16:23:30,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:23:30,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5116628] [2020-07-08 16:23:30,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:23:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:23:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 16:23:31,141 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:23:31,143 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 16:23:31,144 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 16:23:31,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:23:31,173 WARN L170 areAnnotationChecker]: allocate_memoryENTRY has no Hoare annotation [2020-07-08 16:23:31,173 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 16:23:31,174 WARN L170 areAnnotationChecker]: errENTRY has no Hoare annotation [2020-07-08 16:23:31,174 WARN L170 areAnnotationChecker]: errENTRY has no Hoare annotation [2020-07-08 16:23:31,174 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:23:31,174 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 16:23:31,174 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 16:23:31,175 WARN L170 areAnnotationChecker]: appendENTRY has no Hoare annotation [2020-07-08 16:23:31,175 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-08 16:23:31,175 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:23:31,175 WARN L170 areAnnotationChecker]: errFINAL has no Hoare annotation [2020-07-08 16:23:31,176 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:23:31,176 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 16:23:31,176 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-08 16:23:31,176 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 16:23:31,177 WARN L170 areAnnotationChecker]: allocate_memoryFINAL has no Hoare annotation [2020-07-08 16:23:31,177 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-08 16:23:31,177 WARN L170 areAnnotationChecker]: errEXIT has no Hoare annotation [2020-07-08 16:23:31,177 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 16:23:31,178 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-08 16:23:31,178 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-08 16:23:31,178 WARN L170 areAnnotationChecker]: allocate_memoryEXIT has no Hoare annotation [2020-07-08 16:23:31,179 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-08 16:23:31,179 WARN L170 areAnnotationChecker]: L48-12 has no Hoare annotation [2020-07-08 16:23:31,179 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-08 16:23:31,180 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-08 16:23:31,180 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-08 16:23:31,180 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-08 16:23:31,180 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 16:23:31,180 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-08 16:23:31,180 WARN L170 areAnnotationChecker]: L39-1 has no Hoare annotation [2020-07-08 16:23:31,181 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2020-07-08 16:23:31,181 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 16:23:31,181 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 16:23:31,181 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-08 16:23:31,181 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-08 16:23:31,182 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-08 16:23:31,182 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 16:23:31,182 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-08 16:23:31,182 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-08 16:23:31,182 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-08 16:23:31,182 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-08 16:23:31,182 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-08 16:23:31,183 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-08 16:23:31,183 WARN L170 areAnnotationChecker]: appendFINAL has no Hoare annotation [2020-07-08 16:23:31,183 WARN L170 areAnnotationChecker]: L43-1 has no Hoare annotation [2020-07-08 16:23:31,183 WARN L170 areAnnotationChecker]: appendEXIT has no Hoare annotation [2020-07-08 16:23:31,183 WARN L170 areAnnotationChecker]: appendEXIT has no Hoare annotation [2020-07-08 16:23:31,183 WARN L170 areAnnotationChecker]: L43-2 has no Hoare annotation [2020-07-08 16:23:31,184 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-08 16:23:31,184 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-08 16:23:31,185 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-08 16:23:31,185 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2020-07-08 16:23:31,185 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2020-07-08 16:23:31,185 WARN L170 areAnnotationChecker]: L48-4 has no Hoare annotation [2020-07-08 16:23:31,185 WARN L170 areAnnotationChecker]: L48-9 has no Hoare annotation [2020-07-08 16:23:31,185 WARN L170 areAnnotationChecker]: L48-5 has no Hoare annotation [2020-07-08 16:23:31,186 WARN L170 areAnnotationChecker]: L48-10 has no Hoare annotation [2020-07-08 16:23:31,186 WARN L170 areAnnotationChecker]: L48-6 has no Hoare annotation [2020-07-08 16:23:31,186 WARN L170 areAnnotationChecker]: L48-11 has no Hoare annotation [2020-07-08 16:23:31,186 WARN L170 areAnnotationChecker]: L48-7 has no Hoare annotation [2020-07-08 16:23:31,186 WARN L170 areAnnotationChecker]: L48-7 has no Hoare annotation [2020-07-08 16:23:31,187 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. [2020-07-08 16:23:31,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 04:23:31 BoogieIcfgContainer [2020-07-08 16:23:31,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 16:23:31,202 INFO L168 Benchmark]: Toolchain (without parser) took 1647.82 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 103.4 MB in the beginning and 124.1 MB in the end (delta: -20.8 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:31,203 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 16:23:31,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.59 ms. Allocated memory is still 138.4 MB. Free memory was 103.0 MB in the beginning and 92.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:31,205 INFO L168 Benchmark]: Boogie Preprocessor took 141.65 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 92.3 MB in the beginning and 180.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:31,206 INFO L168 Benchmark]: RCFGBuilder took 534.04 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 153.6 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:31,207 INFO L168 Benchmark]: TraceAbstraction took 681.44 ms. Allocated memory is still 202.9 MB. Free memory was 153.0 MB in the beginning and 124.1 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:31,211 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 138.4 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.59 ms. Allocated memory is still 138.4 MB. Free memory was 103.0 MB in the beginning and 92.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.65 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 92.3 MB in the beginning and 180.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 534.04 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 153.6 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 681.44 ms. Allocated memory is still 202.9 MB. Free memory was 153.0 MB in the beginning and 124.1 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 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; [L37] struct list *l,m; [L38] l = &m [L39] l->next = 0 [L40] l->n = 0 [L42] CALL, EXPR append(l, 1) [L25] struct list *new_el; [L27] CALL, EXPR allocate_memory() [L20] return malloc(8U); [L27] RET, EXPR allocate_memory() [L27] new_el = allocate_memory() [L29] new_el->n = n [L30] new_el->next = l [L32] return new_el; [L42] RET, EXPR append(l, 1) [L42] l = append(l, 1) [L43] CALL, EXPR append(l, 2) [L25] struct list *new_el; [L27] CALL, EXPR allocate_memory() [L20] return malloc(8U); [L27] RET, EXPR allocate_memory() [L27] new_el = allocate_memory() [L29] new_el->n = n [L30] new_el->next = l [L32] return new_el; [L43] RET, EXPR append(l, 2) [L43] l = append(l, 2) [L48] EXPR l->next [L48] EXPR l->next->next [L48] EXPR l->next->next->n [L48] COND TRUE l->next->next->n == 0 [L48] CALL err() [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...