java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list_true-termination.c_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 12:53:58,118 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:53:58,120 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:53:58,133 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:53:58,133 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:53:58,134 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:53:58,136 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:53:58,137 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:53:58,139 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:53:58,140 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:53:58,141 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:53:58,141 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:53:58,142 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:53:58,143 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:53:58,144 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:53:58,145 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:53:58,146 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:53:58,148 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:53:58,150 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:53:58,152 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:53:58,154 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:53:58,155 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:53:58,157 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:53:58,158 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:53:58,158 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:53:58,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:53:58,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:53:58,161 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:53:58,162 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:53:58,163 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:53:58,163 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:53:58,164 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:53:58,164 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:53:58,165 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:53:58,166 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:53:58,166 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:53:58,167 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 12:53:58,183 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:53:58,183 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:53:58,184 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:53:58,184 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:53:58,185 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:53:58,185 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:53:58,185 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:53:58,185 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:53:58,186 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:53:58,186 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:53:58,186 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:53:58,186 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:53:58,186 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:53:58,187 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:53:58,187 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:53:58,187 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:53:58,187 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:53:58,187 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:53:58,188 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:53:58,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:53:58,188 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:53:58,188 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:53:58,189 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:53:58,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:53:58,189 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:53:58,189 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:53:58,189 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:53:58,190 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:53:58,190 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:53:58,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:53:58,190 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:53:58,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:53:58,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:53:58,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:53:58,277 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:53:58,277 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:53:58,278 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list_true-termination.c_true-unreach-call.i [2018-11-23 12:53:58,345 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c25ef23/a120f78615e54148907f599a1f18abe7/FLAGae9c5ee1b [2018-11-23 12:53:58,864 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:53:58,864 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list_true-termination.c_true-unreach-call.i [2018-11-23 12:53:58,876 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c25ef23/a120f78615e54148907f599a1f18abe7/FLAGae9c5ee1b [2018-11-23 12:53:59,172 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c25ef23/a120f78615e54148907f599a1f18abe7 [2018-11-23 12:53:59,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:53:59,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:53:59,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:53:59,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:53:59,196 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:53:59,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:53:59,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d84c474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59, skipping insertion in model container [2018-11-23 12:53:59,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:53:59,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:53:59,266 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:53:59,700 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:53:59,715 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:53:59,785 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:53:59,868 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:53:59,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59 WrapperNode [2018-11-23 12:53:59,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:53:59,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:53:59,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:53:59,870 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:53:59,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:53:59,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:53:59,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:53:59,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:53:59,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:53:59,989 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:54:00,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:54:00,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:54:00,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:54:00,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:54:00,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:54:00,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:54:00,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... [2018-11-23 12:54:00,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:54:00,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:54:00,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:54:00,048 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:54:00,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:54:00,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 12:54:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 12:54:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 12:54:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:54:00,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:54:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:54:00,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:54:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-23 12:54:00,115 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-23 12:54:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 12:54:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-23 12:54:00,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-23 12:54:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2018-11-23 12:54:00,116 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2018-11-23 12:54:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 12:54:00,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:54:00,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:54:00,701 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:54:00,702 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 12:54:00,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:00 BoogieIcfgContainer [2018-11-23 12:54:00,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:54:00,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:54:00,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:54:00,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:54:00,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:53:59" (1/3) ... [2018-11-23 12:54:00,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fbba1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:54:00, skipping insertion in model container [2018-11-23 12:54:00,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:59" (2/3) ... [2018-11-23 12:54:00,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fbba1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:54:00, skipping insertion in model container [2018-11-23 12:54:00,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:54:00" (3/3) ... [2018-11-23 12:54:00,712 INFO L112 eAbstractionObserver]: Analyzing ICFG rule60_list_true-termination.c_true-unreach-call.i [2018-11-23 12:54:00,720 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:54:00,728 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:54:00,744 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:54:00,776 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:54:00,776 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:54:00,777 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:54:00,777 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:54:00,777 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:54:00,777 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:54:00,778 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:54:00,778 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:54:00,778 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:54:00,800 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-23 12:54:00,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 12:54:00,807 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:54:00,808 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:54:00,810 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:54:00,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:54:00,815 INFO L82 PathProgramCache]: Analyzing trace with hash -258912463, now seen corresponding path program 1 times [2018-11-23 12:54:00,817 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:54:00,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:54:00,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:54:00,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:54:00,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:54:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:54:01,735 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 15 [2018-11-23 12:54:01,864 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: zero is neutral element of plus operator at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:87) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.lambda$0(UltimateNormalFormUtils.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker$MyWalker.walk(SubtermPropertyChecker.java:63) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker.isPropertySatisfied(SubtermPropertyChecker.java:121) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.respectsUltimateNormalForm(UltimateNormalFormUtils.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:103) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.constructNewPredicate(PredicateUnifier.java:375) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:592) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 12:54:01,869 INFO L168 Benchmark]: Toolchain (without parser) took 2686.41 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -693.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2018-11-23 12:54:01,870 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 12:54:01,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 679.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2018-11-23 12:54:01,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2018-11-23 12:54:01,873 INFO L168 Benchmark]: Boogie Preprocessor took 58.05 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 12:54:01,874 INFO L168 Benchmark]: RCFGBuilder took 655.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2018-11-23 12:54:01,875 INFO L168 Benchmark]: TraceAbstraction took 1163.68 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 7.1 GB. [2018-11-23 12:54:01,880 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 679.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 118.83 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.05 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 655.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1163.68 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 39.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: zero is neutral element of plus operator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: zero is neutral element of plus operator: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:87) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...