./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 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/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 0.1.24-0ed9222-m [2019-01-14 17:53:59,794 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:53:59,795 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:53:59,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:53:59,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:53:59,808 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:53:59,810 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:53:59,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:53:59,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:53:59,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:53:59,823 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:53:59,823 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:53:59,824 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:53:59,826 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:53:59,827 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:53:59,828 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:53:59,829 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:53:59,830 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:53:59,833 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:53:59,834 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:53:59,835 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:53:59,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:53:59,839 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:53:59,840 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:53:59,840 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:53:59,841 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:53:59,842 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:53:59,843 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:53:59,844 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:53:59,845 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:53:59,845 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:53:59,846 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:53:59,846 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:53:59,846 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:53:59,848 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:53:59,849 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:53:59,849 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:53:59,864 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:53:59,864 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:53:59,865 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:53:59,866 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:53:59,866 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:53:59,866 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:53:59,866 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:53:59,866 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:53:59,867 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:53:59,867 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:53:59,867 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:53:59,867 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:53:59,867 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:53:59,868 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:53:59,869 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:53:59,869 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:53:59,869 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:53:59,869 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:53:59,870 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:53:59,870 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:53:59,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:53:59,870 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:53:59,870 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:53:59,871 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:53:59,872 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:53:59,872 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:53:59,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:53:59,872 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 [2019-01-14 17:53:59,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:53:59,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:53:59,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:53:59,924 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:53:59,924 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:53:59,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops-crafted-1/nested5_true-unreach-call.c [2019-01-14 17:53:59,995 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd368a4a5/46f7c131f3204933a2292eff8adaf130/FLAG138ac00ab [2019-01-14 17:54:00,403 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:54:00,406 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops-crafted-1/nested5_true-unreach-call.c [2019-01-14 17:54:00,413 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd368a4a5/46f7c131f3204933a2292eff8adaf130/FLAG138ac00ab [2019-01-14 17:54:00,783 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd368a4a5/46f7c131f3204933a2292eff8adaf130 [2019-01-14 17:54:00,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:54:00,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:54:00,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:54:00,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:54:00,791 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:54:00,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:54:00" (1/1) ... [2019-01-14 17:54:00,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d04184c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:00, skipping insertion in model container [2019-01-14 17:54:00,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:54:00" (1/1) ... [2019-01-14 17:54:00,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:54:00,822 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:54:01,048 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:54:01,053 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:54:01,072 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:54:01,087 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:54:01,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01 WrapperNode [2019-01-14 17:54:01,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:54:01,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:54:01,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:54:01,088 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:54:01,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:54:01,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:54:01,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:54:01,131 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:54:01,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (1/1) ... [2019-01-14 17:54:01,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:54:01,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:54:01,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:54:01,157 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:54:01,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (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 17:54:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:54:01,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:54:01,622 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:54:01,623 INFO L286 CfgBuilder]: Removed 11 assue(true) statements. [2019-01-14 17:54:01,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:54:01 BoogieIcfgContainer [2019-01-14 17:54:01,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:54:01,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:54:01,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:54:01,627 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:54:01,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:54:00" (1/3) ... [2019-01-14 17:54:01,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623b2f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:54:01, skipping insertion in model container [2019-01-14 17:54:01,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:54:01" (2/3) ... [2019-01-14 17:54:01,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623b2f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:54:01, skipping insertion in model container [2019-01-14 17:54:01,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:54:01" (3/3) ... [2019-01-14 17:54:01,631 INFO L112 eAbstractionObserver]: Analyzing ICFG nested5_true-unreach-call.c [2019-01-14 17:54:01,638 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:54:01,645 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:54:01,660 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:54:01,690 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:54:01,690 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:54:01,690 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:54:01,691 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:54:01,691 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:54:01,691 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:54:01,691 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:54:01,691 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:54:01,691 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:54:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-01-14 17:54:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-14 17:54:01,711 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:54:01,712 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:54:01,714 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:54:01,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:54:01,720 INFO L82 PathProgramCache]: Analyzing trace with hash -548469862, now seen corresponding path program 1 times [2019-01-14 17:54:01,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:54:01,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:54:01,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:01,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:54:01,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:54:01,992 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 17:54:01,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:54:01,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 17:54:01,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 17:54:02,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 17:54:02,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:54:02,013 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2019-01-14 17:54:02,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:54:02,101 INFO L93 Difference]: Finished difference Result 47 states and 76 transitions. [2019-01-14 17:54:02,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 17:54:02,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-01-14 17:54:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:54:02,113 INFO L225 Difference]: With dead ends: 47 [2019-01-14 17:54:02,114 INFO L226 Difference]: Without dead ends: 24 [2019-01-14 17:54:02,117 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 [2019-01-14 17:54:02,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-01-14 17:54:02,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2019-01-14 17:54:02,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-14 17:54:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-01-14 17:54:02,152 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 9 [2019-01-14 17:54:02,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:54:02,153 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-01-14 17:54:02,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 17:54:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-01-14 17:54:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 17:54:02,154 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:54:02,155 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:54:02,155 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:54:02,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:54:02,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1254673340, now seen corresponding path program 1 times [2019-01-14 17:54:02,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:54:02,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:54:02,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:02,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:54:02,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:54:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:54:02,319 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:54:02,320 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 17:54:02,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:54:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:54:02,362 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:54:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:54:02,473 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:54:02,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-01-14 17:54:02,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 17:54:02,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 17:54:02,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:54:02,474 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 5 states. [2019-01-14 17:54:02,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:54:02,598 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2019-01-14 17:54:02,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:54:02,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-01-14 17:54:02,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:54:02,600 INFO L225 Difference]: With dead ends: 41 [2019-01-14 17:54:02,600 INFO L226 Difference]: Without dead ends: 26 [2019-01-14 17:54:02,601 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 [2019-01-14 17:54:02,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-01-14 17:54:02,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2019-01-14 17:54:02,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 17:54:02,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-01-14 17:54:02,607 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2019-01-14 17:54:02,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:54:02,607 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-01-14 17:54:02,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 17:54:02,608 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-01-14 17:54:02,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-14 17:54:02,608 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:54:02,608 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:54:02,609 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:54:02,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:54:02,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1091497122, now seen corresponding path program 2 times [2019-01-14 17:54:02,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:54:02,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:54:02,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:02,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:54:02,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:54:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:54:02,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:54:02,940 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 17:54:02,950 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 17:54:02,962 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-14 17:54:02,962 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:54:02,964 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:54:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:54:03,050 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:54:03,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-01-14 17:54:03,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 17:54:03,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 17:54:03,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:54:03,051 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 6 states. [2019-01-14 17:54:03,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:54:03,128 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2019-01-14 17:54:03,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 17:54:03,129 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-01-14 17:54:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:54:03,130 INFO L225 Difference]: With dead ends: 45 [2019-01-14 17:54:03,130 INFO L226 Difference]: Without dead ends: 28 [2019-01-14 17:54:03,130 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 [2019-01-14 17:54:03,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-14 17:54:03,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2019-01-14 17:54:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-14 17:54:03,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-01-14 17:54:03,136 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13 [2019-01-14 17:54:03,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:54:03,136 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-01-14 17:54:03,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 17:54:03,137 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-01-14 17:54:03,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-14 17:54:03,137 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:54:03,138 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:54:03,138 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:54:03,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:54:03,138 INFO L82 PathProgramCache]: Analyzing trace with hash -903480704, now seen corresponding path program 3 times [2019-01-14 17:54:03,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:54:03,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:54:03,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:03,140 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 17:54:03,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:54:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:54:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:54:03,386 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:54:03,386 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 [2019-01-14 17:54:03,394 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-14 17:54:03,423 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-01-14 17:54:03,423 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:54:03,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:54:05,583 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 [2019-01-14 17:54:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-01-14 17:54:05,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 17:54:05,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2019-01-14 17:54:05,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-14 17:54:05,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-14 17:54:05,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=48, Unknown=1, NotChecked=14, Total=90 [2019-01-14 17:54:05,657 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 10 states. [2019-01-14 17:54:13,199 WARN L181 SmtUtils]: Spent 6.94 s on a formula simplification. DAG size of input: 91 DAG size of output: 26 [2019-01-14 17:54:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:54:15,234 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2019-01-14 17:54:15,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-14 17:54:15,235 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2019-01-14 17:54:15,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:54:15,235 INFO L225 Difference]: With dead ends: 48 [2019-01-14 17:54:15,235 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:54:15,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2019-01-14 17:54:15,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:54:15,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:54:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:54:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:54:15,238 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-01-14 17:54:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:54:15,240 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:54:15,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-14 17:54:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:54:15,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:54:15,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:54:15,334 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 22) the Hoare annotation is: true [2019-01-14 17:54:15,334 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:54:15,334 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:54:15,334 INFO L448 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2019-01-14 17:54:15,335 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)) [2019-01-14 17:54:15,335 INFO L448 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2019-01-14 17:54:15,335 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-14 17:54:15,335 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 16 22) no Hoare annotation was computed. [2019-01-14 17:54:15,335 INFO L451 ceAbstractionStarter]: At program point L16-3(lines 16 22) the Hoare annotation is: true [2019-01-14 17:54:15,335 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-14 17:54:15,335 INFO L451 ceAbstractionStarter]: At program point L4-2(lines 1 25) the Hoare annotation is: true [2019-01-14 17:54:15,335 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:54:15,336 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 22) no Hoare annotation was computed. [2019-01-14 17:54:15,337 INFO L451 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: true [2019-01-14 17:54:15,337 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-14 17:54:15,338 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2019-01-14 17:54:15,338 INFO L451 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: true [2019-01-14 17:54:15,338 INFO L448 ceAbstractionStarter]: For program point L10(lines 10 23) no Hoare annotation was computed. [2019-01-14 17:54:15,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:54:15 BoogieIcfgContainer [2019-01-14 17:54:15,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:54:15,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:54:15,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:54:15,351 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:54:15,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:54:01" (3/4) ... [2019-01-14 17:54:15,355 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:54:15,366 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:54:15,367 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:54:15,415 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:54:15,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:54:15,416 INFO L168 Benchmark]: Toolchain (without parser) took 14629.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 943.3 MB in the beginning and 989.6 MB in the end (delta: -46.3 MB). Peak memory consumption was 91.0 MB. Max. memory is 11.5 GB. [2019-01-14 17:54:15,418 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:54:15,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.81 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:54:15,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.89 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:54:15,419 INFO L168 Benchmark]: Boogie Preprocessor took 26.30 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:54:15,420 INFO L168 Benchmark]: RCFGBuilder took 467.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-01-14 17:54:15,422 INFO L168 Benchmark]: TraceAbstraction took 13725.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.6 MB in the end (delta: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 11.5 GB. [2019-01-14 17:54:15,422 INFO L168 Benchmark]: Witness Printer took 64.11 ms. Allocated memory is still 1.2 GB. Free memory is still 989.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:54:15,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.81 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 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 41.89 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.30 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 467.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13725.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 989.6 MB in the end (delta: 118.1 MB). Peak memory consumption was 118.1 MB. Max. memory is 11.5 GB. * Witness Printer took 64.11 ms. Allocated memory is still 1.2 GB. Free memory is still 989.6 MB. There was no memory consumed. 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: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (0 <= v && v <= 0) || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. SAFE Result, 13.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 9.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 58 SDslu, 152 SDs, 0 SdLazy, 97 SolverSat, 20 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 10.1s 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, 20 HoareAnnotationTreeSize, 6 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.1s 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...