./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memsafety.prp --file /storage/repos/svcomp/c/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.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/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.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 6b14dd63832ca953bb678ff696ab3d8598ab5b62 ............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-13 22:56:04,395 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-13 22:56:04,397 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-13 22:56:04,409 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-13 22:56:04,409 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-13 22:56:04,410 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-13 22:56:04,411 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-13 22:56:04,413 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-13 22:56:04,415 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-13 22:56:04,416 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-13 22:56:04,417 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-13 22:56:04,417 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-13 22:56:04,418 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-13 22:56:04,419 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-13 22:56:04,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-13 22:56:04,421 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-13 22:56:04,422 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-13 22:56:04,423 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-13 22:56:04,426 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-13 22:56:04,427 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-13 22:56:04,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-13 22:56:04,430 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-13 22:56:04,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-13 22:56:04,433 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-13 22:56:04,433 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-13 22:56:04,434 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-13 22:56:04,435 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-13 22:56:04,436 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-13 22:56:04,437 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-13 22:56:04,439 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-13 22:56:04,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-13 22:56:04,440 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-13 22:56:04,440 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-13 22:56:04,440 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-13 22:56:04,441 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-13 22:56:04,442 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-13 22:56:04,442 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-01-13 22:56:04,457 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-13 22:56:04,457 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-13 22:56:04,458 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-13 22:56:04,459 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-13 22:56:04,459 INFO L133 SettingsManager]: * Use SBE=true [2019-01-13 22:56:04,459 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-13 22:56:04,459 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-13 22:56:04,459 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-13 22:56:04,460 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-13 22:56:04,460 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-13 22:56:04,460 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-13 22:56:04,460 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-01-13 22:56:04,460 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2019-01-13 22:56:04,460 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-01-13 22:56:04,461 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-13 22:56:04,461 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-13 22:56:04,461 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-13 22:56:04,461 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-13 22:56:04,461 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-13 22:56:04,462 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-13 22:56:04,462 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-13 22:56:04,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-13 22:56:04,462 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-13 22:56:04,462 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-13 22:56:04,462 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-13 22:56:04,463 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-13 22:56:04,463 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 -> 6b14dd63832ca953bb678ff696ab3d8598ab5b62 [2019-01-13 22:56:04,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-13 22:56:04,509 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-13 22:56:04,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-13 22:56:04,514 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-13 22:56:04,514 INFO L276 PluginConnector]: CDTParser initialized [2019-01-13 22:56:04,515 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c [2019-01-13 22:56:04,573 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bca55f90/6483cc783bee49d7904c94736b256383/FLAG8a909c95e [2019-01-13 22:56:05,051 INFO L307 CDTParser]: Found 1 translation units. [2019-01-13 22:56:05,054 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c [2019-01-13 22:56:05,061 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bca55f90/6483cc783bee49d7904c94736b256383/FLAG8a909c95e [2019-01-13 22:56:05,392 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bca55f90/6483cc783bee49d7904c94736b256383 [2019-01-13 22:56:05,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-13 22:56:05,397 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-01-13 22:56:05,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-13 22:56:05,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-13 22:56:05,403 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-13 22:56:05,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32fe48ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05, skipping insertion in model container [2019-01-13 22:56:05,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-13 22:56:05,440 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-13 22:56:05,687 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 22:56:05,702 INFO L191 MainTranslator]: Completed pre-run [2019-01-13 22:56:05,728 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-13 22:56:05,744 INFO L195 MainTranslator]: Completed translation [2019-01-13 22:56:05,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05 WrapperNode [2019-01-13 22:56:05,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-13 22:56:05,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-13 22:56:05,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-13 22:56:05,746 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-13 22:56:05,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (1/1) ... [2019-01-13 22:56:05,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-13 22:56:05,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-13 22:56:05,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-13 22:56:05,782 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-13 22:56:05,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (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 [2019-01-13 22:56:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-01-13 22:56:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-13 22:56:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-13 22:56:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-01-13 22:56:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-01-13 22:56:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-13 22:56:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-13 22:56:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-01-13 22:56:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-13 22:56:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-01-13 22:56:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-13 22:56:06,023 WARN L745 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-01-13 22:56:06,174 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-13 22:56:06,175 INFO L286 CfgBuilder]: Removed 0 assue(true) statements. [2019-01-13 22:56:06,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 10:56:06 BoogieIcfgContainer [2019-01-13 22:56:06,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-13 22:56:06,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-13 22:56:06,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-13 22:56:06,182 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-13 22:56:06,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.01 10:56:05" (1/3) ... [2019-01-13 22:56:06,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247ff102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 10:56:06, skipping insertion in model container [2019-01-13 22:56:06,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.01 10:56:05" (2/3) ... [2019-01-13 22:56:06,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247ff102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.01 10:56:06, skipping insertion in model container [2019-01-13 22:56:06,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 10:56:06" (3/3) ... [2019-01-13 22:56:06,187 INFO L112 eAbstractionObserver]: Analyzing ICFG memsetNonZero3_true-valid-memsafety_true-termination.c [2019-01-13 22:56:06,201 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-13 22:56:06,213 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-13 22:56:06,238 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-13 22:56:06,268 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-13 22:56:06,269 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-13 22:56:06,269 INFO L383 AbstractCegarLoop]: Hoare is false [2019-01-13 22:56:06,269 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-13 22:56:06,269 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-13 22:56:06,269 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-13 22:56:06,269 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-13 22:56:06,270 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-13 22:56:06,270 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-13 22:56:06,287 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-01-13 22:56:06,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-13 22:56:06,299 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 22:56:06,300 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-13 22:56:06,303 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 22:56:06,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 22:56:06,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847368, now seen corresponding path program 1 times [2019-01-13 22:56:06,312 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 22:56:06,313 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 22:56:06,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:06,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 22:56:06,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 22:56:06,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 22:56:06,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 22:56:06,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-13 22:56:06,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 22:56:06,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 22:56:06,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 22:56:06,513 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-01-13 22:56:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 22:56:06,571 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-13 22:56:06,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 22:56:06,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-13 22:56:06,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 22:56:06,581 INFO L225 Difference]: With dead ends: 19 [2019-01-13 22:56:06,581 INFO L226 Difference]: Without dead ends: 16 [2019-01-13 22:56:06,583 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 22:56:06,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-13 22:56:06,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-13 22:56:06,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-13 22:56:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-01-13 22:56:06,619 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2019-01-13 22:56:06,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 22:56:06,620 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-01-13 22:56:06,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 22:56:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-01-13 22:56:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-13 22:56:06,621 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 22:56:06,621 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-13 22:56:06,621 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 22:56:06,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 22:56:06,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1092847367, now seen corresponding path program 1 times [2019-01-13 22:56:06,622 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 22:56:06,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 22:56:06,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:06,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 22:56:06,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 22:56:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 22:56:06,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 22:56:06,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-13 22:56:06,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-13 22:56:06,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-13 22:56:06,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 22:56:06,712 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2019-01-13 22:56:06,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 22:56:06,733 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-13 22:56:06,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-13 22:56:06,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-13 22:56:06,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 22:56:06,734 INFO L225 Difference]: With dead ends: 15 [2019-01-13 22:56:06,734 INFO L226 Difference]: Without dead ends: 15 [2019-01-13 22:56:06,737 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-13 22:56:06,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-13 22:56:06,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-13 22:56:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-13 22:56:06,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-01-13 22:56:06,741 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2019-01-13 22:56:06,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 22:56:06,741 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-01-13 22:56:06,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-13 22:56:06,742 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-01-13 22:56:06,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-13 22:56:06,743 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 22:56:06,743 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 22:56:06,744 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 22:56:06,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 22:56:06,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1462327129, now seen corresponding path program 1 times [2019-01-13 22:56:06,744 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 22:56:06,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 22:56:06,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:06,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 22:56:06,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 22:56:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 22:56:06,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-13 22:56:06,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-13 22:56:06,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-13 22:56:06,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-13 22:56:06,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-13 22:56:06,867 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2019-01-13 22:56:06,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 22:56:06,963 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-13 22:56:06,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-13 22:56:06,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-01-13 22:56:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 22:56:06,966 INFO L225 Difference]: With dead ends: 18 [2019-01-13 22:56:06,966 INFO L226 Difference]: Without dead ends: 16 [2019-01-13 22:56:06,966 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-13 22:56:06,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-13 22:56:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-13 22:56:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-13 22:56:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-01-13 22:56:06,971 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-01-13 22:56:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 22:56:06,971 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-01-13 22:56:06,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-13 22:56:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-01-13 22:56:06,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-13 22:56:06,972 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 22:56:06,972 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 22:56:06,972 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 22:56:06,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 22:56:06,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1971150090, now seen corresponding path program 1 times [2019-01-13 22:56:06,973 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 22:56:06,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 22:56:06,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:06,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 22:56:06,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 22:56:07,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 22:56:07,133 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-13 22:56:07,133 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 [2019-01-13 22:56:07,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 22:56:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 22:56:07,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 22:56:07,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 22:56:07,324 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-13 22:56:07,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-01-13 22:56:07,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-13 22:56:07,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-13 22:56:07,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-13 22:56:07,325 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2019-01-13 22:56:07,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 22:56:07,531 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-13 22:56:07,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-13 22:56:07,532 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-01-13 22:56:07,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 22:56:07,532 INFO L225 Difference]: With dead ends: 19 [2019-01-13 22:56:07,532 INFO L226 Difference]: Without dead ends: 17 [2019-01-13 22:56:07,533 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2019-01-13 22:56:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-13 22:56:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-01-13 22:56:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-13 22:56:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-01-13 22:56:07,541 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2019-01-13 22:56:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 22:56:07,541 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-01-13 22:56:07,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-13 22:56:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-01-13 22:56:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-13 22:56:07,544 INFO L394 BasicCegarLoop]: Found error trace [2019-01-13 22:56:07,544 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-13 22:56:07,545 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION]=== [2019-01-13 22:56:07,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-13 22:56:07,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1034761479, now seen corresponding path program 2 times [2019-01-13 22:56:07,545 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-13 22:56:07,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-13 22:56:07,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:07,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-13 22:56:07,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-13 22:56:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-13 22:56:07,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-13 22:56:07,718 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-13 22:56:07,718 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-13 22:56:07,728 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-13 22:56:07,749 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-01-13 22:56:07,749 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-13 22:56:07,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-13 22:56:07,968 INFO L701 Elim1Store]: detected not equals via solver [2019-01-13 22:56:07,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2019-01-13 22:56:07,977 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-13 22:56:08,003 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-01-13 22:56:08,004 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2019-01-13 22:56:08,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-13 22:56:08,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-13 22:56:08,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2019-01-13 22:56:08,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-13 22:56:08,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-13 22:56:08,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2019-01-13 22:56:08,476 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 10 states. [2019-01-13 22:56:08,995 WARN L181 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-13 22:56:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-13 22:56:09,061 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-01-13 22:56:09,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-13 22:56:09,061 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-01-13 22:56:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-13 22:56:09,062 INFO L225 Difference]: With dead ends: 19 [2019-01-13 22:56:09,062 INFO L226 Difference]: Without dead ends: 0 [2019-01-13 22:56:09,063 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=144, Unknown=1, NotChecked=0, Total=210 [2019-01-13 22:56:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-13 22:56:09,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-13 22:56:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-13 22:56:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-13 22:56:09,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-01-13 22:56:09,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-13 22:56:09,064 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-13 22:56:09,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-13 22:56:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-13 22:56:09,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-13 22:56:09,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.01 10:56:09 BoogieIcfgContainer [2019-01-13 22:56:09,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-13 22:56:09,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-13 22:56:09,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-13 22:56:09,070 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-13 22:56:09,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.01 10:56:06" (3/4) ... [2019-01-13 22:56:09,075 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-13 22:56:09,081 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2019-01-13 22:56:09,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memset [2019-01-13 22:56:09,082 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2019-01-13 22:56:09,087 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-13 22:56:09,087 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-13 22:56:09,088 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-13 22:56:09,088 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-13 22:56:09,125 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-13 22:56:09,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-13 22:56:09,126 INFO L168 Benchmark]: Toolchain (without parser) took 3730.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -68.1 MB). Peak memory consumption was 72.9 MB. Max. memory is 11.5 GB. [2019-01-13 22:56:09,127 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 22:56:09,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.48 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-13 22:56:09,128 INFO L168 Benchmark]: Boogie Preprocessor took 36.01 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 22:56:09,129 INFO L168 Benchmark]: RCFGBuilder took 394.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-13 22:56:09,130 INFO L168 Benchmark]: TraceAbstraction took 2892.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.1 MB). Peak memory consumption was 103.1 MB. Max. memory is 11.5 GB. [2019-01-13 22:56:09,131 INFO L168 Benchmark]: Witness Printer took 55.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-13 22:56:09,135 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.48 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.01 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 394.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2892.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.1 MB). Peak memory consumption was 103.1 MB. Max. memory is 11.5 GB. * Witness Printer took 55.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 29]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 29]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 3 error locations. SAFE Result, 2.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 16 SDslu, 95 SDs, 0 SdLazy, 88 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 83 ConstructedInterpolants, 8 QuantifiedInterpolants, 3121 SizeOfPredicates, 1 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...