/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/recursive_list.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:28:48,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:28:48,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:28:48,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:28:48,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:28:48,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:28:48,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:28:48,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:28:48,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:28:48,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:28:48,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:28:48,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:28:48,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:28:48,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:28:48,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:28:48,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:28:48,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:28:48,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:28:48,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:28:48,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:28:48,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:28:48,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:28:48,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:28:48,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:28:48,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:28:48,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:28:48,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:28:48,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:28:48,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:28:48,189 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:28:48,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:28:48,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:28:48,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:28:48,191 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:28:48,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:28:48,192 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:28:48,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:28:48,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:28:48,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:28:48,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:28:48,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:28:48,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:28:48,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:28:48,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:28:48,194 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:28:48,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:28:48,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:28:48,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:28:48,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:28:48,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:28:48,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:28:48,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:28:48,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:28:48,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:28:48,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:28:48,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:28:48,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:28:48,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:28:48,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:28:48,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:28:48,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:28:48,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:28:48,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:28:48,525 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:28:48,526 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/recursive_list.i [2020-07-17 22:28:48,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e00a80c11/6274f0b5f4dd4f64a716231bde248509/FLAG26b10dd2f [2020-07-17 22:28:49,086 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:28:49,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/recursive_list.i [2020-07-17 22:28:49,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e00a80c11/6274f0b5f4dd4f64a716231bde248509/FLAG26b10dd2f [2020-07-17 22:28:49,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e00a80c11/6274f0b5f4dd4f64a716231bde248509 [2020-07-17 22:28:49,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:28:49,463 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:28:49,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:28:49,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:28:49,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:28:49,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f91bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49, skipping insertion in model container [2020-07-17 22:28:49,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:28:49,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:28:49,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:28:49,686 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:28:49,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:28:49,725 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:28:49,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49 WrapperNode [2020-07-17 22:28:49,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:28:49,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:28:49,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:28:49,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:28:49,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (1/1) ... [2020-07-17 22:28:49,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:28:49,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:28:49,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:28:49,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:28:49,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (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 [2020-07-17 22:28:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:28:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:28:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-17 22:28:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_memory [2020-07-17 22:28:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2020-07-17 22:28:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:28:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:28:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:28:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-17 22:28:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_memory [2020-07-17 22:28:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:28:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure append [2020-07-17 22:28:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:28:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 22:28:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:28:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:28:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 22:28:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:28:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:28:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:28:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:28:50,220 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:28:50,220 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 22:28:50,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:28:50 BoogieIcfgContainer [2020-07-17 22:28:50,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:28:50,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:28:50,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:28:50,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:28:50,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:28:49" (1/3) ... [2020-07-17 22:28:50,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ef96bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:28:50, skipping insertion in model container [2020-07-17 22:28:50,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:28:49" (2/3) ... [2020-07-17 22:28:50,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ef96bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:28:50, skipping insertion in model container [2020-07-17 22:28:50,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:28:50" (3/3) ... [2020-07-17 22:28:50,235 INFO L109 eAbstractionObserver]: Analyzing ICFG recursive_list.i [2020-07-17 22:28:50,251 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:28:50,262 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:28:50,280 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:28:50,311 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:28:50,311 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:28:50,311 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:28:50,312 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:28:50,312 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:28:50,312 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:28:50,312 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:28:50,312 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:28:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-17 22:28:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-17 22:28:50,364 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:28:50,366 INFO L422 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] [2020-07-17 22:28:50,366 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:28:50,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:28:50,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1715006850, now seen corresponding path program 1 times [2020-07-17 22:28:50,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:28:50,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787443926] [2020-07-17 22:28:50,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:28:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:28:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:28:50,839 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:28:50,840 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:28:50,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:28:50,903 WARN L170 areAnnotationChecker]: allocate_memoryENTRY has no Hoare annotation [2020-07-17 22:28:50,903 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:28:50,903 WARN L170 areAnnotationChecker]: errENTRY has no Hoare annotation [2020-07-17 22:28:50,903 WARN L170 areAnnotationChecker]: errENTRY has no Hoare annotation [2020-07-17 22:28:50,903 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:28:50,904 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:28:50,904 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:28:50,904 WARN L170 areAnnotationChecker]: appendENTRY has no Hoare annotation [2020-07-17 22:28:50,904 WARN L170 areAnnotationChecker]: allocate_memoryFINAL has no Hoare annotation [2020-07-17 22:28:50,904 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:28:50,905 WARN L170 areAnnotationChecker]: errFINAL has no Hoare annotation [2020-07-17 22:28:50,905 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:28:50,905 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:28:50,905 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:28:50,905 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:28:50,906 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:28:50,906 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-17 22:28:50,906 WARN L170 areAnnotationChecker]: allocate_memoryEXIT has no Hoare annotation [2020-07-17 22:28:50,906 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:28:50,907 WARN L170 areAnnotationChecker]: errEXIT has no Hoare annotation [2020-07-17 22:28:50,907 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:28:50,907 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-17 22:28:50,907 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-17 22:28:50,907 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2020-07-17 22:28:50,908 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-17 22:28:50,908 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-17 22:28:50,908 WARN L170 areAnnotationChecker]: appendFINAL has no Hoare annotation [2020-07-17 22:28:50,908 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:28:50,908 WARN L170 areAnnotationChecker]: L43-1 has no Hoare annotation [2020-07-17 22:28:50,909 WARN L170 areAnnotationChecker]: appendEXIT has no Hoare annotation [2020-07-17 22:28:50,909 WARN L170 areAnnotationChecker]: appendEXIT has no Hoare annotation [2020-07-17 22:28:50,909 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:28:50,909 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:28:50,909 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:28:50,910 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-17 22:28:50,910 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-17 22:28:50,910 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. [2020-07-17 22:28:50,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:28:50 BoogieIcfgContainer [2020-07-17 22:28:50,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:28:50,918 INFO L168 Benchmark]: Toolchain (without parser) took 1455.28 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 103.6 MB in the beginning and 135.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:50,919 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-17 22:28:50,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.71 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 92.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:50,921 INFO L168 Benchmark]: Boogie Preprocessor took 127.01 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 92.0 MB in the beginning and 180.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:50,922 INFO L168 Benchmark]: RCFGBuilder took 371.05 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 157.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:50,923 INFO L168 Benchmark]: TraceAbstraction took 688.41 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 135.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:28:50,926 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 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.71 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 92.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.01 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 92.0 MB in the beginning and 180.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 371.05 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 157.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 688.41 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 135.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 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)=16, i=1] [L37] struct list *l,m; [L38] l = &m [L39] l->next = 0 [L40] l->n = 0 VAL [i=1, l={3:0}, m={3:0}] [L42] CALL, EXPR append(l, 1) VAL [\old(n)=1, i=1, l={3:0}] [L25] struct list *new_el; VAL [\old(n)=1, i=1, l={3:0}, l={3:0}, n=1] [L27] CALL, EXPR allocate_memory() VAL [i=1] [L20] return malloc(8U); VAL [\result={-1:0}, i=1, malloc(8U)={-1:0}] [L27] RET, EXPR allocate_memory() VAL [\old(n)=1, allocate_memory()={-1:0}, i=1, l={3:0}, l={3:0}, n=1] [L27] new_el = allocate_memory() [L29] new_el->n = n [L30] new_el->next = l [L32] return new_el; VAL [\old(n)=1, \result={-1:0}, i=1, l={3:0}, l={3:0}, n=1, new_el={-1:0}] [L42] RET, EXPR append(l, 1) VAL [append(l, 1)={-1:0}, i=1, l={3:0}, m={3:0}] [L42] l = append(l, 1) [L43] CALL, EXPR append(l, 2) VAL [\old(n)=2, i=1, l={-1:0}] [L25] struct list *new_el; VAL [\old(n)=2, i=1, l={-1:0}, l={-1:0}, n=2] [L27] CALL, EXPR allocate_memory() VAL [i=1] [L20] return malloc(8U); VAL [\result={-2:0}, i=1, malloc(8U)={-2:0}] [L27] RET, EXPR allocate_memory() VAL [\old(n)=2, allocate_memory()={-2:0}, i=1, l={-1:0}, l={-1:0}, n=2] [L27] new_el = allocate_memory() [L29] new_el->n = n [L30] new_el->next = l [L32] return new_el; VAL [\old(n)=2, \result={-2:0}, i=1, l={-1:0}, l={-1:0}, n=2, new_el={-2:0}] [L43] RET, EXPR append(l, 2) VAL [append(l, 2)={-2:0}, i=1, l={-1:0}, m={3:0}] [L43] l = append(l, 2) [L48] EXPR l->next [L48] EXPR l->next->next [L48] EXPR l->next->next->n VAL [i=1, l={-2:0}, l->next={-1:0}, l->next->next={3:0}, l->next->next->n=0, m={3:0}] [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. 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=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 DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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, 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...