./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.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 8890a6e15e91dc33e0e8fdcf0ca164911989393b ................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 17:45:43,409 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:45:43,411 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:45:43,423 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:45:43,423 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:45:43,424 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:45:43,425 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:45:43,428 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:45:43,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:45:43,430 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:45:43,431 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:45:43,432 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:45:43,433 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:45:43,434 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:45:43,435 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:45:43,436 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:45:43,437 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:45:43,439 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:45:43,441 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:45:43,443 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:45:43,444 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:45:43,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:45:43,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:45:43,449 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:45:43,449 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:45:43,450 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:45:43,451 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:45:43,452 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:45:43,453 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:45:43,454 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:45:43,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:45:43,456 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:45:43,456 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:45:43,456 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:45:43,457 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:45:43,458 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:45:43,459 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:45:43,480 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:45:43,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:45:43,481 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:45:43,482 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:45:43,482 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:45:43,482 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:45:43,482 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:45:43,482 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:45:43,483 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:45:43,483 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:45:43,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:45:43,484 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:45:43,484 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:45:43,484 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:45:43,484 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:45:43,484 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:45:43,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:45:43,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:45:43,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:45:43,485 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:45:43,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:45:43,486 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:45:43,487 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:45:43,487 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:45:43,487 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:45:43,488 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:45:43,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:45:43,488 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 -> 8890a6e15e91dc33e0e8fdcf0ca164911989393b [2019-01-14 17:45:43,523 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:45:43,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:45:43,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:45:43,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:45:43,539 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:45:43,539 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c [2019-01-14 17:45:43,592 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7149d217/70a5cedddadb4142bb01a7df87d4b0bc/FLAG7200172e4 [2019-01-14 17:45:43,990 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:45:43,991 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-industry-pattern/mod3_true-unreach-call.c.v+cfa-reducer.c [2019-01-14 17:45:43,997 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7149d217/70a5cedddadb4142bb01a7df87d4b0bc/FLAG7200172e4 [2019-01-14 17:45:44,014 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7149d217/70a5cedddadb4142bb01a7df87d4b0bc [2019-01-14 17:45:44,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:45:44,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:45:44,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:45:44,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:45:44,028 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:45:44,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a409c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44, skipping insertion in model container [2019-01-14 17:45:44,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:45:44,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:45:44,226 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:45:44,231 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:45:44,249 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:45:44,262 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:45:44,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44 WrapperNode [2019-01-14 17:45:44,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:45:44,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:45:44,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:45:44,264 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:45:44,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:45:44,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:45:44,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:45:44,302 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:45:44,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... [2019-01-14 17:45:44,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:45:44,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:45:44,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:45:44,321 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:45:44,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:45:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:45:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:45:44,749 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:45:44,749 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 17:45:44,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:45:44 BoogieIcfgContainer [2019-01-14 17:45:44,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:45:44,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:45:44,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:45:44,756 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:45:44,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:45:44" (1/3) ... [2019-01-14 17:45:44,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2193296b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:45:44, skipping insertion in model container [2019-01-14 17:45:44,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:45:44" (2/3) ... [2019-01-14 17:45:44,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2193296b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:45:44, skipping insertion in model container [2019-01-14 17:45:44,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:45:44" (3/3) ... [2019-01-14 17:45:44,760 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c.v+cfa-reducer.c [2019-01-14 17:45:44,774 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:45:44,793 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:45:44,839 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:45:44,903 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:45:44,904 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:45:44,904 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:45:44,905 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:45:44,905 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:45:44,905 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:45:44,905 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:45:44,906 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:45:44,906 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:45:44,927 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-14 17:45:44,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 17:45:44,937 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:45:44,939 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:45:44,942 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:45:44,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:45:44,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1804535397, now seen corresponding path program 1 times [2019-01-14 17:45:44,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:45:44,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:45:45,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:45:45,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:45:45,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:45:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:45:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:45:45,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:45:45,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 17:45:45,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 17:45:45,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 17:45:45,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:45:45,242 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-01-14 17:45:45,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:45:45,309 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-01-14 17:45:45,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 17:45:45,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-01-14 17:45:45,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:45:45,322 INFO L225 Difference]: With dead ends: 29 [2019-01-14 17:45:45,322 INFO L226 Difference]: Without dead ends: 16 [2019-01-14 17:45:45,326 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:45:45,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-14 17:45:45,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2019-01-14 17:45:45,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-14 17:45:45,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-01-14 17:45:45,361 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2019-01-14 17:45:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:45:45,361 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-01-14 17:45:45,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 17:45:45,362 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-01-14 17:45:45,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 17:45:45,362 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:45:45,362 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:45:45,363 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:45:45,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:45:45,363 INFO L82 PathProgramCache]: Analyzing trace with hash -527269500, now seen corresponding path program 1 times [2019-01-14 17:45:45,363 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:45:45,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:45:45,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:45:45,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:45:45,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:45:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:45:45,678 WARN L181 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 16 [2019-01-14 17:45:45,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:45:45,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:45:45,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 17:45:45,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 17:45:45,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 17:45:45,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:45:45,717 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2019-01-14 17:45:46,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:45:46,515 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-01-14 17:45:46,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:45:46,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-01-14 17:45:46,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:45:46,516 INFO L225 Difference]: With dead ends: 25 [2019-01-14 17:45:46,516 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:45:46,518 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:45:46,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:45:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:45:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:45:46,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:45:46,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-01-14 17:45:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:45:46,523 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:45:46,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 17:45:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:45:46,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:45:46,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:45:46,716 WARN L181 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-01-14 17:45:46,732 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:45:46,732 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 47) no Hoare annotation was computed. [2019-01-14 17:45:46,732 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 74) no Hoare annotation was computed. [2019-01-14 17:45:46,733 INFO L451 ceAbstractionStarter]: At program point L73(lines 7 76) the Hoare annotation is: true [2019-01-14 17:45:46,733 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2019-01-14 17:45:46,733 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 17:45:46,733 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:45:46,733 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-01-14 17:45:46,733 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:45:46,734 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-01-14 17:45:46,734 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 48) no Hoare annotation was computed. [2019-01-14 17:45:46,734 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 75) no Hoare annotation was computed. [2019-01-14 17:45:46,735 INFO L444 ceAbstractionStarter]: At program point L45(lines 8 76) the Hoare annotation is: (or (and (<= 1 ULTIMATE.start_main_~main__y~0) (<= (div ULTIMATE.start_main_~main__y~0 4294967296) 0)) (and (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 4294967296 .cse0) (* 3 (div (+ ULTIMATE.start_main_~main__x~0 (* (- 4294967296) .cse0)) 3))))) (= ULTIMATE.start_main_~main__y~0 0))) [2019-01-14 17:45:46,735 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 46) no Hoare annotation was computed. [2019-01-14 17:45:46,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:45:46 BoogieIcfgContainer [2019-01-14 17:45:46,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:45:46,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:45:46,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:45:46,750 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:45:46,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:45:44" (3/4) ... [2019-01-14 17:45:46,755 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:45:46,767 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 17:45:46,767 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:45:46,826 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:45:46,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:45:46,827 INFO L168 Benchmark]: Toolchain (without parser) took 2808.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -102.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-01-14 17:45:46,828 INFO L168 Benchmark]: CDTParser took 0.15 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. [2019-01-14 17:45:46,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.45 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:45:46,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.40 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:45:46,830 INFO L168 Benchmark]: Boogie Preprocessor took 18.96 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:45:46,831 INFO L168 Benchmark]: RCFGBuilder took 430.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-01-14 17:45:46,831 INFO L168 Benchmark]: TraceAbstraction took 1997.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:45:46,832 INFO L168 Benchmark]: Witness Printer took 76.16 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-14 17:45:46,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 241.45 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.40 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.96 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 430.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1997.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. * Witness Printer took 76.16 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: 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: 8]: Loop Invariant Derived loop invariant: (1 <= main__y && main__y / 4294967296 <= 0) || (main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3) && main__y == 0) - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 10 SDslu, 26 SDs, 0 SdLazy, 22 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 34 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...