./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/memsafety-ext3/derefInLoop1_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/svcomp/c/memsafety-ext3/derefInLoop1_false-valid-deref.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa3ae4378a5284e50be7191d52900376e96b0fdc ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 00:36:39,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 00:36:39,089 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 00:36:39,101 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 00:36:39,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 00:36:39,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 00:36:39,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 00:36:39,106 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 00:36:39,108 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 00:36:39,110 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 00:36:39,111 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 00:36:39,112 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 00:36:39,112 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 00:36:39,116 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 00:36:39,118 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 00:36:39,119 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 00:36:39,119 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 00:36:39,121 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 00:36:39,123 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 00:36:39,125 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 00:36:39,126 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 00:36:39,127 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 00:36:39,130 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 00:36:39,130 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 00:36:39,130 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 00:36:39,131 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 00:36:39,132 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 00:36:39,133 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 00:36:39,134 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 00:36:39,135 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 00:36:39,135 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 00:36:39,136 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 00:36:39,136 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 00:36:39,136 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 00:36:39,137 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 00:36:39,138 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 00:36:39,138 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-14 00:36:39,153 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 00:36:39,154 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 00:36:39,155 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 00:36:39,155 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 00:36:39,155 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 00:36:39,156 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 00:36:39,156 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 00:36:39,156 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 00:36:39,156 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 00:36:39,156 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 00:36:39,156 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 00:36:39,157 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-14 00:36:39,157 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-14 00:36:39,157 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-14 00:36:39,157 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 00:36:39,157 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 00:36:39,157 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 00:36:39,158 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 00:36:39,158 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 00:36:39,158 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 00:36:39,158 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 00:36:39,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 00:36:39,159 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 00:36:39,159 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 00:36:39,159 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 00:36:39,159 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 00:36:39,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa3ae4378a5284e50be7191d52900376e96b0fdc [2019-01-14 00:36:39,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 00:36:39,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 00:36:39,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 00:36:39,211 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 00:36:39,212 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 00:36:39,212 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety-ext3/derefInLoop1_false-valid-deref.c [2019-01-14 00:36:39,275 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92242668/6ffcbde2804842b9a7b7475ff8c88fe0/FLAGc87477088 [2019-01-14 00:36:39,681 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 00:36:39,682 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety-ext3/derefInLoop1_false-valid-deref.c [2019-01-14 00:36:39,688 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92242668/6ffcbde2804842b9a7b7475ff8c88fe0/FLAGc87477088 [2019-01-14 00:36:40,061 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92242668/6ffcbde2804842b9a7b7475ff8c88fe0 [2019-01-14 00:36:40,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 00:36:40,067 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-14 00:36:40,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 00:36:40,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 00:36:40,073 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 00:36:40,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45617025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40, skipping insertion in model container [2019-01-14 00:36:40,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 00:36:40,106 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 00:36:40,351 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 00:36:40,367 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 00:36:40,385 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 00:36:40,402 INFO L195 MainTranslator]: Completed translation [2019-01-14 00:36:40,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40 WrapperNode [2019-01-14 00:36:40,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 00:36:40,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 00:36:40,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 00:36:40,404 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 00:36:40,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (1/1) ... [2019-01-14 00:36:40,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 00:36:40,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 00:36:40,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 00:36:40,448 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 00:36:40,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (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 [2019-01-14 00:36:40,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-14 00:36:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 00:36:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-14 00:36:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-14 00:36:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 00:36:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 00:36:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 00:36:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-14 00:36:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 00:36:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 00:36:40,887 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 00:36:40,888 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-14 00:36:40,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 12:36:40 BoogieIcfgContainer [2019-01-14 00:36:40,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 00:36:40,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 00:36:40,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 00:36:40,894 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 00:36:40,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 12:36:40" (1/3) ... [2019-01-14 00:36:40,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370cdd57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 12:36:40, skipping insertion in model container [2019-01-14 00:36:40,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 12:36:40" (2/3) ... [2019-01-14 00:36:40,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370cdd57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 12:36:40, skipping insertion in model container [2019-01-14 00:36:40,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 12:36:40" (3/3) ... [2019-01-14 00:36:40,898 INFO L112 eAbstractionObserver]: Analyzing ICFG derefInLoop1_false-valid-deref.c [2019-01-14 00:36:40,910 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 00:36:40,918 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-14 00:36:40,935 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-14 00:36:40,961 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 00:36:40,962 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 00:36:40,962 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-14 00:36:40,962 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 00:36:40,963 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 00:36:40,963 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 00:36:40,963 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 00:36:40,963 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 00:36:40,963 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 00:36:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-01-14 00:36:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-14 00:36:40,990 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 00:36:40,991 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 00:36:40,993 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-14 00:36:41,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 00:36:41,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1075805963, now seen corresponding path program 1 times [2019-01-14 00:36:41,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 00:36:41,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 00:36:41,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:41,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:41,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 00:36:41,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 00:36:41,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 00:36:41,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-14 00:36:41,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 00:36:41,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 00:36:41,135 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-01-14 00:36:41,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 00:36:41,150 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-01-14 00:36:41,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 00:36:41,151 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-01-14 00:36:41,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 00:36:41,160 INFO L225 Difference]: With dead ends: 18 [2019-01-14 00:36:41,160 INFO L226 Difference]: Without dead ends: 15 [2019-01-14 00:36:41,162 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 00:36:41,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-14 00:36:41,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-14 00:36:41,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-14 00:36:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-01-14 00:36:41,199 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2019-01-14 00:36:41,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 00:36:41,200 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-01-14 00:36:41,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-14 00:36:41,200 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-01-14 00:36:41,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-14 00:36:41,201 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 00:36:41,201 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 00:36:41,201 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-14 00:36:41,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 00:36:41,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1075819417, now seen corresponding path program 1 times [2019-01-14 00:36:41,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 00:36:41,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 00:36:41,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:41,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:41,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:41,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 00:36:41,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 00:36:41,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 00:36:41,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 00:36:41,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 00:36:41,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 00:36:41,291 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2019-01-14 00:36:41,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 00:36:41,365 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-01-14 00:36:41,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 00:36:41,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-01-14 00:36:41,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 00:36:41,368 INFO L225 Difference]: With dead ends: 18 [2019-01-14 00:36:41,368 INFO L226 Difference]: Without dead ends: 18 [2019-01-14 00:36:41,369 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 00:36:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-01-14 00:36:41,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-01-14 00:36:41,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-14 00:36:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-01-14 00:36:41,376 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2019-01-14 00:36:41,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 00:36:41,377 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-01-14 00:36:41,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 00:36:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-01-14 00:36:41,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 00:36:41,378 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 00:36:41,378 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 00:36:41,378 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-14 00:36:41,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 00:36:41,378 INFO L82 PathProgramCache]: Analyzing trace with hash -643356833, now seen corresponding path program 1 times [2019-01-14 00:36:41,379 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 00:36:41,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 00:36:41,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:41,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:41,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:41,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 00:36:41,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 00:36:41,473 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 00:36:41,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 00:36:41,536 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 00:36:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 00:36:41,612 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 00:36:41,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-01-14 00:36:41,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 00:36:41,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 00:36:41,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-14 00:36:41,613 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 5 states. [2019-01-14 00:36:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 00:36:41,667 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-01-14 00:36:41,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 00:36:41,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-01-14 00:36:41,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 00:36:41,669 INFO L225 Difference]: With dead ends: 19 [2019-01-14 00:36:41,669 INFO L226 Difference]: Without dead ends: 19 [2019-01-14 00:36:41,669 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-14 00:36:41,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-14 00:36:41,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-14 00:36:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-14 00:36:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-01-14 00:36:41,675 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2019-01-14 00:36:41,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 00:36:41,675 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-01-14 00:36:41,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 00:36:41,676 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-01-14 00:36:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 00:36:41,676 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 00:36:41,676 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 00:36:41,677 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-01-14 00:36:41,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 00:36:41,677 INFO L82 PathProgramCache]: Analyzing trace with hash -643355199, now seen corresponding path program 1 times [2019-01-14 00:36:41,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 00:36:41,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 00:36:41,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:41,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 00:36:41,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 00:36:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 00:36:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 00:36:41,739 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 00:36:41,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 12:36:41 BoogieIcfgContainer [2019-01-14 00:36:41,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 00:36:41,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 00:36:41,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 00:36:41,759 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 00:36:41,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 12:36:40" (3/4) ... [2019-01-14 00:36:41,762 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 00:36:41,802 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 00:36:41,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 00:36:41,803 INFO L168 Benchmark]: Toolchain (without parser) took 1737.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -118.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-01-14 00:36:41,805 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 00:36:41,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.19 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 00:36:41,806 INFO L168 Benchmark]: Boogie Preprocessor took 43.57 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 00:36:41,807 INFO L168 Benchmark]: RCFGBuilder took 441.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-01-14 00:36:41,807 INFO L168 Benchmark]: TraceAbstraction took 867.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. [2019-01-14 00:36:41,808 INFO L168 Benchmark]: Witness Printer took 43.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 00:36:41,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.19 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.57 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 441.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 867.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 11.5 GB. * Witness Printer took 43.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L3] int i = 0; VAL [i=0] [L3] COND TRUE i < 2 [L4] int a[10]; VAL [a={1:0}, i=0] [L5] COND TRUE i == 0 [L6] p = a VAL [a={1:0}, i=0, p={1:0}] [L3] i++ [L3] COND TRUE i < 2 [L4] int a[10]; VAL [a={-1:0}, i=1, p={1:0}] [L5] COND FALSE !(i == 0) VAL [a={-1:0}, i=1, p={1:0}] [L8] p[0] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 3 error locations. UNSAFE Result, 0.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 9 SDslu, 30 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 562 SizeOfPredicates, 1 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...