./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops-crafted-1/nested5_true-unreach-call.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/loops-crafted-1/nested5_true-unreach-call.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 58c483ef37358c272383ba8c3b69f22948f7d8e5 ................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:30:20,179 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 06:30:20,181 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 06:30:20,195 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 06:30:20,196 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 06:30:20,197 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 06:30:20,198 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 06:30:20,199 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 06:30:20,201 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 06:30:20,202 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 06:30:20,203 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 06:30:20,203 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 06:30:20,204 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 06:30:20,205 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 06:30:20,206 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 06:30:20,206 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 06:30:20,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 06:30:20,209 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 06:30:20,211 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 06:30:20,213 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 06:30:20,214 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 06:30:20,215 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 06:30:20,217 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 06:30:20,218 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 06:30:20,218 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 06:30:20,219 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 06:30:20,220 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 06:30:20,220 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 06:30:20,221 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 06:30:20,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 06:30:20,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 06:30:20,223 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 06:30:20,224 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 06:30:20,224 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 06:30:20,225 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 06:30:20,226 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 06:30:20,226 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 06:30:20,248 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 06:30:20,248 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 06:30:20,250 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 06:30:20,252 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 06:30:20,252 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 06:30:20,252 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 06:30:20,252 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 06:30:20,252 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 06:30:20,252 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 06:30:20,253 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 06:30:20,253 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 06:30:20,253 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 06:30:20,253 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 06:30:20,253 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 06:30:20,253 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 06:30:20,254 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 06:30:20,254 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 06:30:20,254 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 06:30:20,254 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 06:30:20,254 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 06:30:20,254 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 06:30:20,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 06:30:20,258 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 06:30:20,258 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 06:30:20,259 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 06:30:20,259 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 06:30:20,259 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 06:30:20,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 06:30:20,259 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 -> 58c483ef37358c272383ba8c3b69f22948f7d8e5 [2018-12-31 06:30:20,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 06:30:20,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 06:30:20,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 06:30:20,339 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 06:30:20,339 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 06:30:20,341 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops-crafted-1/nested5_true-unreach-call.c [2018-12-31 06:30:20,401 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709ddbc97/33c040cc5c1e4d6593d663f220dd07e6/FLAGc1bd3c290 [2018-12-31 06:30:20,807 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 06:30:20,808 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops-crafted-1/nested5_true-unreach-call.c [2018-12-31 06:30:20,812 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709ddbc97/33c040cc5c1e4d6593d663f220dd07e6/FLAGc1bd3c290 [2018-12-31 06:30:21,188 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/709ddbc97/33c040cc5c1e4d6593d663f220dd07e6 [2018-12-31 06:30:21,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 06:30:21,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 06:30:21,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 06:30:21,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 06:30:21,200 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 06:30:21,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb3b9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21, skipping insertion in model container [2018-12-31 06:30:21,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 06:30:21,231 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 06:30:21,461 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 06:30:21,466 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 06:30:21,492 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 06:30:21,509 INFO L195 MainTranslator]: Completed translation [2018-12-31 06:30:21,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21 WrapperNode [2018-12-31 06:30:21,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 06:30:21,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 06:30:21,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 06:30:21,511 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 06:30:21,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 06:30:21,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 06:30:21,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 06:30:21,553 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 06:30:21,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (1/1) ... [2018-12-31 06:30:21,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 06:30:21,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 06:30:21,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 06:30:21,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 06:30:21,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (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 06:30:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 06:30:21,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 06:30:22,026 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 06:30:22,026 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-31 06:30:22,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:30:22 BoogieIcfgContainer [2018-12-31 06:30:22,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 06:30:22,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 06:30:22,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 06:30:22,031 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 06:30:22,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 06:30:21" (1/3) ... [2018-12-31 06:30:22,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705ba657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 06:30:22, skipping insertion in model container [2018-12-31 06:30:22,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:30:21" (2/3) ... [2018-12-31 06:30:22,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705ba657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 06:30:22, skipping insertion in model container [2018-12-31 06:30:22,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:30:22" (3/3) ... [2018-12-31 06:30:22,034 INFO L112 eAbstractionObserver]: Analyzing ICFG nested5_true-unreach-call.c [2018-12-31 06:30:22,044 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 06:30:22,052 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 06:30:22,070 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 06:30:22,101 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 06:30:22,102 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 06:30:22,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 06:30:22,102 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 06:30:22,103 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 06:30:22,103 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 06:30:22,103 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 06:30:22,103 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 06:30:22,103 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 06:30:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-31 06:30:22,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 06:30:22,126 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:30:22,127 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 06:30:22,129 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:30:22,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:30:22,135 INFO L82 PathProgramCache]: Analyzing trace with hash -548469862, now seen corresponding path program 1 times [2018-12-31 06:30:22,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:30:22,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:30:22,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:30:22,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:30:22,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:30:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:30:22,384 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 06:30:22,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 06:30:22,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 06:30:22,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 06:30:22,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 06:30:22,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 06:30:22,406 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-12-31 06:30:22,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:30:22,468 INFO L93 Difference]: Finished difference Result 47 states and 76 transitions. [2018-12-31 06:30:22,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 06:30:22,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-31 06:30:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:30:22,479 INFO L225 Difference]: With dead ends: 47 [2018-12-31 06:30:22,480 INFO L226 Difference]: Without dead ends: 24 [2018-12-31 06:30:22,483 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 06:30:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-31 06:30:22,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2018-12-31 06:30:22,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-31 06:30:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-12-31 06:30:22,517 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 9 [2018-12-31 06:30:22,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:30:22,517 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-12-31 06:30:22,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 06:30:22,518 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2018-12-31 06:30:22,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 06:30:22,518 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:30:22,518 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 06:30:22,519 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:30:22,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:30:22,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1254673340, now seen corresponding path program 1 times [2018-12-31 06:30:22,519 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:30:22,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:30:22,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:30:22,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:30:22,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:30:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:30:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:30:22,688 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 06:30:22,689 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 [2018-12-31 06:30:22,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:30:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:30:22,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 06:30:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:30:22,831 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 06:30:22,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-12-31 06:30:22,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 06:30:22,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 06:30:22,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 06:30:22,837 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 5 states. [2018-12-31 06:30:23,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:30:23,007 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2018-12-31 06:30:23,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 06:30:23,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-12-31 06:30:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:30:23,010 INFO L225 Difference]: With dead ends: 41 [2018-12-31 06:30:23,010 INFO L226 Difference]: Without dead ends: 26 [2018-12-31 06:30:23,011 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 06:30:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-31 06:30:23,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2018-12-31 06:30:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-31 06:30:23,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2018-12-31 06:30:23,016 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2018-12-31 06:30:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:30:23,017 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-12-31 06:30:23,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 06:30:23,017 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-12-31 06:30:23,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-31 06:30:23,017 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:30:23,018 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 06:30:23,018 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:30:23,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:30:23,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1091497122, now seen corresponding path program 2 times [2018-12-31 06:30:23,018 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:30:23,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:30:23,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:30:23,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:30:23,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:30:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:30:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:30:23,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 06:30:23,345 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 [2018-12-31 06:30:23,356 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-31 06:30:23,397 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-31 06:30:23,397 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 06:30:23,399 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 06:30:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:30:23,485 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 06:30:23,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-12-31 06:30:23,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 06:30:23,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 06:30:23,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-31 06:30:23,487 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 6 states. [2018-12-31 06:30:23,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:30:23,564 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2018-12-31 06:30:23,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 06:30:23,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-12-31 06:30:23,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:30:23,567 INFO L225 Difference]: With dead ends: 45 [2018-12-31 06:30:23,567 INFO L226 Difference]: Without dead ends: 28 [2018-12-31 06:30:23,568 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-31 06:30:23,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-31 06:30:23,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2018-12-31 06:30:23,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-31 06:30:23,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2018-12-31 06:30:23,574 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13 [2018-12-31 06:30:23,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:30:23,574 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2018-12-31 06:30:23,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 06:30:23,574 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-12-31 06:30:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-31 06:30:23,575 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:30:23,575 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 06:30:23,576 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:30:23,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:30:23,577 INFO L82 PathProgramCache]: Analyzing trace with hash -903480704, now seen corresponding path program 3 times [2018-12-31 06:30:23,577 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:30:23,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:30:23,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:30:23,579 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-31 06:30:23,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:30:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:30:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:30:23,870 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 06:30:23,871 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-31 06:30:23,879 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-31 06:30:23,907 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-31 06:30:23,908 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 06:30:23,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 06:30:26,053 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 Int)) (let ((.cse0 (mod v_prenex_5 4)) (.cse1 (mod v_prenex_5 4294967296))) (and (<= .cse0 2147483647) (<= 0 .cse1) (= .cse0 c_ULTIMATE.start___VERIFIER_assert_~cond) (<= 10 .cse1) (< (mod (+ v_prenex_5 4294967295) 4294967296) 10)))) (exists ((v_prenex_4 Int)) (let ((.cse4 (mod v_prenex_4 4))) (let ((.cse2 (mod (+ .cse4 4294967292) 4294967296)) (.cse3 (mod v_prenex_4 4294967296))) (and (<= .cse2 2147483647) (<= 10 .cse3) (= .cse2 c_ULTIMATE.start___VERIFIER_assert_~cond) (not (= 0 .cse4)) (< (mod (+ v_prenex_4 4294967295) 4294967296) 10) (< .cse3 0))))) (exists ((ULTIMATE.start_main_~v~0 Int)) (let ((.cse6 (mod ULTIMATE.start_main_~v~0 4)) (.cse5 (mod ULTIMATE.start_main_~v~0 4294967296))) (and (<= 0 .cse5) (= .cse6 (+ c_ULTIMATE.start___VERIFIER_assert_~cond 4294967296)) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (< 2147483647 .cse6) (<= 10 .cse5)))) (exists ((v_prenex_2 Int)) (let ((.cse7 (mod v_prenex_2 4))) (and (<= 10 (mod v_prenex_2 4294967296)) (= 0 .cse7) (= .cse7 c_ULTIMATE.start___VERIFIER_assert_~cond) (< (mod (+ v_prenex_2 4294967295) 4294967296) 10) (<= .cse7 2147483647)))) (exists ((v_prenex_1 Int)) (let ((.cse10 (mod v_prenex_1 4))) (let ((.cse8 (mod v_prenex_1 4294967296)) (.cse9 (mod (+ .cse10 4294967292) 4294967296))) (and (<= 10 .cse8) (< (mod (+ v_prenex_1 4294967295) 4294967296) 10) (= .cse9 (+ c_ULTIMATE.start___VERIFIER_assert_~cond 4294967296)) (< .cse8 0) (not (= 0 .cse10)) (< 2147483647 .cse9))))) (exists ((v_prenex_3 Int)) (let ((.cse11 (mod v_prenex_3 4))) (and (< (mod (+ v_prenex_3 4294967295) 4294967296) 10) (= .cse11 (+ c_ULTIMATE.start___VERIFIER_assert_~cond 4294967296)) (< 2147483647 .cse11) (<= 10 (mod v_prenex_3 4294967296)) (= 0 .cse11))))) is different from true [2018-12-31 06:30:26,084 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-31 06:30:26,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-31 06:30:26,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-12-31 06:30:26,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-31 06:30:26,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-31 06:30:26,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=48, Unknown=1, NotChecked=14, Total=90 [2018-12-31 06:30:26,108 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 10 states. [2018-12-31 06:30:27,007 WARN L181 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 26 [2018-12-31 06:30:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:30:27,054 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2018-12-31 06:30:27,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-31 06:30:27,055 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2018-12-31 06:30:27,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:30:27,056 INFO L225 Difference]: With dead ends: 48 [2018-12-31 06:30:27,056 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 06:30:27,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2018-12-31 06:30:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 06:30:27,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 06:30:27,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 06:30:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 06:30:27,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-12-31 06:30:27,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:30:27,060 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 06:30:27,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-31 06:30:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 06:30:27,060 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 06:30:27,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 06:30:27,281 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-31 06:30:27,282 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 22) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~v~0) (<= ULTIMATE.start_main_~v~0 0)) (and (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 10 (mod ULTIMATE.start_main_~v~0 4294967296)))) [2018-12-31 06:30:27,282 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 06:30:27,282 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 06:30:27,283 INFO L448 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-12-31 06:30:27,283 INFO L444 ceAbstractionStarter]: At program point L20-3(line 20) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~v~0) (<= ULTIMATE.start_main_~v~0 0)) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10)) [2018-12-31 06:30:27,283 INFO L448 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2018-12-31 06:30:27,283 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 16 22) no Hoare annotation was computed. [2018-12-31 06:30:27,283 INFO L444 ceAbstractionStarter]: At program point L16-3(lines 16 22) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~v~0) (<= ULTIMATE.start_main_~v~0 0)) (and (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 10 (mod ULTIMATE.start_main_~v~0 4294967296)))) [2018-12-31 06:30:27,284 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-31 06:30:27,284 INFO L444 ceAbstractionStarter]: At program point L4-2(lines 1 25) the Hoare annotation is: (and (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 10 (mod ULTIMATE.start_main_~v~0 4294967296))) [2018-12-31 06:30:27,284 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 06:30:27,284 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 22) no Hoare annotation was computed. [2018-12-31 06:30:27,284 INFO L444 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~v~0) (<= ULTIMATE.start_main_~v~0 0)) (and (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 10 (mod ULTIMATE.start_main_~v~0 4294967296)))) [2018-12-31 06:30:27,284 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-31 06:30:27,284 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2018-12-31 06:30:27,285 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~v~0) (<= ULTIMATE.start_main_~v~0 0)) (and (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (<= 10 (mod ULTIMATE.start_main_~v~0 4294967296)))) [2018-12-31 06:30:27,285 INFO L448 ceAbstractionStarter]: For program point L10(lines 10 23) no Hoare annotation was computed. [2018-12-31 06:30:27,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 06:30:27 BoogieIcfgContainer [2018-12-31 06:30:27,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 06:30:27,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 06:30:27,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 06:30:27,300 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 06:30:27,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:30:22" (3/4) ... [2018-12-31 06:30:27,304 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 06:30:27,315 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 06:30:27,315 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 06:30:27,370 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 06:30:27,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 06:30:27,371 INFO L168 Benchmark]: Toolchain (without parser) took 6178.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 951.4 MB in the beginning and 994.7 MB in the end (delta: -43.3 MB). Peak memory consumption was 105.0 MB. Max. memory is 11.5 GB. [2018-12-31 06:30:27,372 INFO L168 Benchmark]: CDTParser took 0.21 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 06:30:27,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.69 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 06:30:27,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.31 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 06:30:27,374 INFO L168 Benchmark]: Boogie Preprocessor took 23.88 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 06:30:27,374 INFO L168 Benchmark]: RCFGBuilder took 449.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-31 06:30:27,375 INFO L168 Benchmark]: TraceAbstraction took 5271.84 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: 122.6 MB). Peak memory consumption was 122.6 MB. Max. memory is 11.5 GB. [2018-12-31 06:30:27,376 INFO L168 Benchmark]: Witness Printer took 70.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 994.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-31 06:30:27,380 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 315.69 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 42.31 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 23.88 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. * RCFGBuilder took 449.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5271.84 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: 122.6 MB). Peak memory consumption was 122.6 MB. Max. memory is 11.5 GB. * Witness Printer took 70.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 994.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 18]: Loop Invariant Derived loop invariant: (0 <= v && v <= 0) || ((v + 4294967295) % 4294967296 < 10 && 10 <= v % 4294967296) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (0 <= v && v <= 0) || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 <= v && v <= 0) || ((v + 4294967295) % 4294967296 < 10 && 10 <= v % 4294967296) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (v + 4294967295) % 4294967296 < 10 && 10 <= v % 4294967296 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (0 <= v && v <= 0) || ((v + 4294967295) % 4294967296 < 10 && 10 <= v % 4294967296) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= v && v <= 0) || ((v + 4294967295) % 4294967296 < 10 && 10 <= v % 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 76 SDtfs, 80 SDslu, 160 SDs, 0 SdLazy, 104 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 21 NumberOfFragments, 112 HoareAnnotationTreeSize, 6 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 87 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 80 ConstructedInterpolants, 1 QuantifiedInterpolants, 6024 SizeOfPredicates, 5 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...