/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 0.1.25-8fc6572 [2020-07-10 15:05:47,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:05:47,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:05:47,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:05:47,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:05:47,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:05:47,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:05:47,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:05:47,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:05:47,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:05:47,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:05:47,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:05:47,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:05:47,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:05:47,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:05:47,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:05:47,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:05:47,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:05:47,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:05:47,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:05:47,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:05:47,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:05:47,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:05:47,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:05:47,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:05:47,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:05:47,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:05:47,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:05:47,762 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 [2020-07-10 15:05:47,786 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:05:47,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:05:47,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:05:47,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:05:47,789 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:05:47,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:05:47,789 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:05:47,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:05:47,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:05:47,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:05:47,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:05:47,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:05:47,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:05:47,791 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:05:47,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:05:47,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:05:47,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:05:47,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:05:47,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:05:47,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:05:47,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:05:47,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:05:47,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:05:47,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:05:47,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:05:47,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:05:47,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:05:47,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:05:47,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:05:47,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:05:48,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:05:48,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:05:48,126 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:05:48,128 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:05:48,128 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:05:48,129 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/recursive_list.i [2020-07-10 15:05:48,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e240b99/cda033e6a16840cc8182d00a8eb3b86b/FLAG9b53a6b95 [2020-07-10 15:05:48,714 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:05:48,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/recursive_list.i [2020-07-10 15:05:48,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e240b99/cda033e6a16840cc8182d00a8eb3b86b/FLAG9b53a6b95 [2020-07-10 15:05:49,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e240b99/cda033e6a16840cc8182d00a8eb3b86b [2020-07-10 15:05:49,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:05:49,117 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:05:49,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:05:49,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:05:49,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:05:49,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579d2d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49, skipping insertion in model container [2020-07-10 15:05:49,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:05:49,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:05:49,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:05:49,337 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:05:49,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:05:49,380 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:05:49,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49 WrapperNode [2020-07-10 15:05:49,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:05:49,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:05:49,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:05:49,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:05:49,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (1/1) ... [2020-07-10 15:05:49,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:05:49,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:05:49,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:05:49,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:05:49,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (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 [2020-07-10 15:05:49,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:05:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:05:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-10 15:05:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_memory [2020-07-10 15:05:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2020-07-10 15:05:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:05:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:05:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 15:05:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-10 15:05:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_memory [2020-07-10 15:05:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 15:05:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure append [2020-07-10 15:05:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:05:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 15:05:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:05:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:05:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 15:05:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:05:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:05:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:05:49,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:05:50,029 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:05:50,030 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 15:05:50,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:05:50 BoogieIcfgContainer [2020-07-10 15:05:50,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:05:50,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:05:50,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:05:50,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:05:50,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:05:49" (1/3) ... [2020-07-10 15:05:50,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1876a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:05:50, skipping insertion in model container [2020-07-10 15:05:50,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:05:49" (2/3) ... [2020-07-10 15:05:50,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1876a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:05:50, skipping insertion in model container [2020-07-10 15:05:50,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:05:50" (3/3) ... [2020-07-10 15:05:50,042 INFO L109 eAbstractionObserver]: Analyzing ICFG recursive_list.i [2020-07-10 15:05:50,054 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:05:50,062 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:05:50,077 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:05:50,102 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:05:50,102 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:05:50,102 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:05:50,103 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:05:50,103 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:05:50,103 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:05:50,103 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:05:50,103 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:05:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-10 15:05:50,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-10 15:05:50,133 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:05:50,134 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] [2020-07-10 15:05:50,134 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:05:50,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:05:50,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1715006850, now seen corresponding path program 1 times [2020-07-10 15:05:50,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:05:50,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410556003] [2020-07-10 15:05:50,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:05:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:05:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:05:50,531 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:05:50,532 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:05:50,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:05:50,592 WARN L170 areAnnotationChecker]: allocate_memoryENTRY has no Hoare annotation [2020-07-10 15:05:50,593 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:05:50,593 WARN L170 areAnnotationChecker]: errENTRY has no Hoare annotation [2020-07-10 15:05:50,594 WARN L170 areAnnotationChecker]: errENTRY has no Hoare annotation [2020-07-10 15:05:50,594 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:05:50,594 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:05:50,594 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:05:50,595 WARN L170 areAnnotationChecker]: appendENTRY has no Hoare annotation [2020-07-10 15:05:50,595 WARN L170 areAnnotationChecker]: allocate_memoryFINAL has no Hoare annotation [2020-07-10 15:05:50,595 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:05:50,595 WARN L170 areAnnotationChecker]: errFINAL has no Hoare annotation [2020-07-10 15:05:50,595 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:05:50,596 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:05:50,597 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-10 15:05:50,597 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-10 15:05:50,597 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 15:05:50,597 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 15:05:50,598 WARN L170 areAnnotationChecker]: allocate_memoryEXIT has no Hoare annotation [2020-07-10 15:05:50,598 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:05:50,598 WARN L170 areAnnotationChecker]: errEXIT has no Hoare annotation [2020-07-10 15:05:50,598 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:05:50,598 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-10 15:05:50,599 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-10 15:05:50,599 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2020-07-10 15:05:50,599 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-10 15:05:50,599 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-10 15:05:50,599 WARN L170 areAnnotationChecker]: appendFINAL has no Hoare annotation [2020-07-10 15:05:50,600 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:05:50,600 WARN L170 areAnnotationChecker]: L43-1 has no Hoare annotation [2020-07-10 15:05:50,600 WARN L170 areAnnotationChecker]: appendEXIT has no Hoare annotation [2020-07-10 15:05:50,600 WARN L170 areAnnotationChecker]: appendEXIT has no Hoare annotation [2020-07-10 15:05:50,600 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:05:50,600 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 15:05:50,601 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 15:05:50,601 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-10 15:05:50,601 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-10 15:05:50,601 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. [2020-07-10 15:05:50,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:05:50 BoogieIcfgContainer [2020-07-10 15:05:50,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:05:50,619 INFO L168 Benchmark]: Toolchain (without parser) took 1499.60 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 131.5 MB in the end (delta: -31.4 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:50,621 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-10 15:05:50,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.19 ms. Allocated memory is still 135.3 MB. Free memory was 99.9 MB in the beginning and 89.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:50,626 INFO L168 Benchmark]: Boogie Preprocessor took 144.89 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 89.2 MB in the beginning and 176.0 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:50,627 INFO L168 Benchmark]: RCFGBuilder took 506.12 ms. Allocated memory is still 199.2 MB. Free memory was 176.0 MB in the beginning and 154.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:50,628 INFO L168 Benchmark]: TraceAbstraction took 579.31 ms. Allocated memory is still 199.2 MB. Free memory was 153.3 MB in the beginning and 131.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:05:50,639 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 0.49 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.19 ms. Allocated memory is still 135.3 MB. Free memory was 99.9 MB in the beginning and 89.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.89 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 89.2 MB in the beginning and 176.0 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 506.12 ms. Allocated memory is still 199.2 MB. Free memory was 176.0 MB in the beginning and 154.0 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 579.31 ms. Allocated memory is still 199.2 MB. Free memory was 153.3 MB in the beginning and 131.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 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; 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: 0.4s, 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...