./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/test28_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-regression/test28_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash abfa11a491c166b78e1d0644316a3829704ada11 .................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 04:23:56,285 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 04:23:56,288 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 04:23:56,304 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 04:23:56,305 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 04:23:56,306 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 04:23:56,307 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 04:23:56,309 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 04:23:56,311 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 04:23:56,311 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 04:23:56,312 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 04:23:56,313 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 04:23:56,314 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 04:23:56,314 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 04:23:56,316 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 04:23:56,316 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 04:23:56,317 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 04:23:56,319 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 04:23:56,324 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 04:23:56,327 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 04:23:56,329 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 04:23:56,330 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 04:23:56,334 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 04:23:56,335 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 04:23:56,335 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 04:23:56,336 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 04:23:56,339 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 04:23:56,340 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 04:23:56,341 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 04:23:56,342 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 04:23:56,342 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 04:23:56,343 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 04:23:56,343 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 04:23:56,343 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 04:23:56,344 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 04:23:56,345 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 04:23:56,346 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 04:23:56,369 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 04:23:56,373 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 04:23:56,374 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 04:23:56,374 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 04:23:56,374 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 04:23:56,375 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 04:23:56,376 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 04:23:56,376 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 04:23:56,376 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 04:23:56,376 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 04:23:56,376 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 04:23:56,376 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 04:23:56,377 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 04:23:56,378 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 04:23:56,378 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 04:23:56,378 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 04:23:56,378 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 04:23:56,378 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 04:23:56,378 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 04:23:56,379 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 04:23:56,379 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 04:23:56,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:23:56,379 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 04:23:56,379 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 04:23:56,380 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 04:23:56,381 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 04:23:56,381 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 04:23:56,381 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 04:23:56,381 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 ! call(__VERIFIER_error())) ) 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 -> abfa11a491c166b78e1d0644316a3829704ada11 [2018-12-31 04:23:56,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 04:23:56,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 04:23:56,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 04:23:56,467 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 04:23:56,468 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 04:23:56,469 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/test28_true-unreach-call_true-termination.c [2018-12-31 04:23:56,539 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9842ee479/fb804b016bd2460e9fb3f11947ca4906/FLAG9e8eafd6b [2018-12-31 04:23:56,949 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 04:23:56,949 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/test28_true-unreach-call_true-termination.c [2018-12-31 04:23:56,955 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9842ee479/fb804b016bd2460e9fb3f11947ca4906/FLAG9e8eafd6b [2018-12-31 04:23:57,326 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9842ee479/fb804b016bd2460e9fb3f11947ca4906 [2018-12-31 04:23:57,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 04:23:57,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 04:23:57,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 04:23:57,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 04:23:57,337 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 04:23:57,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b526487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57, skipping insertion in model container [2018-12-31 04:23:57,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 04:23:57,366 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 04:23:57,536 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:23:57,549 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 04:23:57,569 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 04:23:57,587 INFO L195 MainTranslator]: Completed translation [2018-12-31 04:23:57,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57 WrapperNode [2018-12-31 04:23:57,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 04:23:57,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 04:23:57,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 04:23:57,588 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 04:23:57,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 04:23:57,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 04:23:57,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 04:23:57,636 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 04:23:57,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... [2018-12-31 04:23:57,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 04:23:57,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 04:23:57,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 04:23:57,674 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 04:23:57,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 04:23:57,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 04:23:57,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 04:23:57,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 04:23:57,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 04:23:57,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 04:23:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 04:23:58,223 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 04:23:58,224 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 04:23:58,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:58 BoogieIcfgContainer [2018-12-31 04:23:58,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 04:23:58,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 04:23:58,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 04:23:58,231 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 04:23:58,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 04:23:57" (1/3) ... [2018-12-31 04:23:58,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab7516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:23:58, skipping insertion in model container [2018-12-31 04:23:58,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 04:23:57" (2/3) ... [2018-12-31 04:23:58,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab7516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 04:23:58, skipping insertion in model container [2018-12-31 04:23:58,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:58" (3/3) ... [2018-12-31 04:23:58,235 INFO L112 eAbstractionObserver]: Analyzing ICFG test28_true-unreach-call_true-termination.c [2018-12-31 04:23:58,244 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 04:23:58,251 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 04:23:58,268 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 04:23:58,301 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 04:23:58,301 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 04:23:58,301 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 04:23:58,302 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 04:23:58,302 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 04:23:58,302 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 04:23:58,302 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 04:23:58,302 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 04:23:58,302 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 04:23:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-31 04:23:58,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 04:23:58,325 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:23:58,326 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:23:58,328 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:23:58,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:23:58,335 INFO L82 PathProgramCache]: Analyzing trace with hash -594068692, now seen corresponding path program 1 times [2018-12-31 04:23:58,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:23:58,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:23:58,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:23:58,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:23:58,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:23:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:23:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:23:58,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:23:58,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-31 04:23:58,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-31 04:23:58,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-31 04:23:58,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-31 04:23:58,677 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 7 states. [2018-12-31 04:23:58,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:23:58,931 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2018-12-31 04:23:58,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 04:23:58,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2018-12-31 04:23:58,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:23:58,941 INFO L225 Difference]: With dead ends: 25 [2018-12-31 04:23:58,942 INFO L226 Difference]: Without dead ends: 10 [2018-12-31 04:23:58,945 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-12-31 04:23:58,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-12-31 04:23:58,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-31 04:23:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-31 04:23:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2018-12-31 04:23:58,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 9 [2018-12-31 04:23:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:23:58,975 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2018-12-31 04:23:58,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-31 04:23:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2018-12-31 04:23:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 04:23:58,975 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 04:23:58,976 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 04:23:58,976 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 04:23:58,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 04:23:58,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1182785712, now seen corresponding path program 1 times [2018-12-31 04:23:58,976 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 04:23:58,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 04:23:58,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:23:58,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 04:23:58,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 04:23:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 04:23:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 04:23:59,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 04:23:59,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-31 04:23:59,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-31 04:23:59,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-31 04:23:59,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-31 04:23:59,546 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand 8 states. [2018-12-31 04:23:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 04:23:59,864 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2018-12-31 04:23:59,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 04:23:59,864 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2018-12-31 04:23:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 04:23:59,865 INFO L225 Difference]: With dead ends: 10 [2018-12-31 04:23:59,865 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 04:23:59,866 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-31 04:23:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 04:23:59,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 04:23:59,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 04:23:59,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 04:23:59,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-12-31 04:23:59,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 04:23:59,868 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 04:23:59,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-31 04:23:59,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 04:23:59,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 04:23:59,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 04:23:59,885 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 04:23:59,886 INFO L451 ceAbstractionStarter]: At program point L27(lines 10 28) the Hoare annotation is: true [2018-12-31 04:23:59,886 INFO L444 ceAbstractionStarter]: At program point L21(lines 11 28) the Hoare annotation is: false [2018-12-31 04:23:59,886 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-12-31 04:23:59,886 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 15 19) no Hoare annotation was computed. [2018-12-31 04:23:59,887 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2018-12-31 04:23:59,887 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 04:23:59,887 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 04:23:59,887 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 04:23:59,887 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-31 04:23:59,887 INFO L448 ceAbstractionStarter]: For program point L20-2(lines 20 22) no Hoare annotation was computed. [2018-12-31 04:23:59,887 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-12-31 04:23:59,887 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-12-31 04:23:59,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 04:23:59 BoogieIcfgContainer [2018-12-31 04:23:59,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 04:23:59,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 04:23:59,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 04:23:59,894 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 04:23:59,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 04:23:58" (3/4) ... [2018-12-31 04:23:59,898 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 04:23:59,909 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-31 04:23:59,909 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 04:23:59,909 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-31 04:23:59,960 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 04:23:59,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 04:23:59,962 INFO L168 Benchmark]: Toolchain (without parser) took 2631.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -85.2 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:59,964 INFO L168 Benchmark]: CDTParser took 0.36 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. [2018-12-31 04:23:59,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.85 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:59,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 04:23:59,966 INFO L168 Benchmark]: Boogie Preprocessor took 38.11 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:59,966 INFO L168 Benchmark]: RCFGBuilder took 550.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:59,967 INFO L168 Benchmark]: TraceAbstraction took 1666.78 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: 61.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. [2018-12-31 04:23:59,968 INFO L168 Benchmark]: Witness Printer took 67.00 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. [2018-12-31 04:23:59,973 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 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 254.85 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.16 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.11 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 550.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1666.78 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: 61.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 11.5 GB. * Witness Printer took 67.00 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: 26]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 28 SDslu, 22 SDs, 0 SdLazy, 64 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 624 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...