./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-acceleration/array_true-unreach-call1_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-acceleration/array_true-unreach-call1_true-termination.i -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 60e6b615607c81d5d8be3edb90a3b8bafc35bf36 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 17:19:44,818 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:19:44,819 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:19:44,831 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:19:44,832 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:19:44,833 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:19:44,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:19:44,837 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:19:44,838 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:19:44,840 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:19:44,841 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:19:44,841 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:19:44,842 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:19:44,844 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:19:44,845 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:19:44,846 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:19:44,847 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:19:44,849 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:19:44,851 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:19:44,853 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:19:44,854 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:19:44,856 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:19:44,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:19:44,859 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:19:44,860 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:19:44,861 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:19:44,862 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:19:44,863 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:19:44,864 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:19:44,865 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:19:44,865 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:19:44,867 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:19:44,867 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:19:44,867 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:19:44,869 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:19:44,869 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:19:44,870 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:19:44,893 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:19:44,894 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:19:44,896 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:19:44,896 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:19:44,896 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:19:44,896 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:19:44,896 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:19:44,897 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:19:44,897 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:19:44,898 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:19:44,898 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:19:44,898 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:19:44,898 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:19:44,898 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:19:44,898 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:19:44,899 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:19:44,899 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:19:44,899 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:19:44,899 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:19:44,899 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:19:44,899 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:19:44,901 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:19:44,901 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:19:44,901 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:19:44,901 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:19:44,901 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:19:44,901 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:19:44,902 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 -> 60e6b615607c81d5d8be3edb90a3b8bafc35bf36 [2019-01-14 17:19:44,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:19:44,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:19:44,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:19:44,963 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:19:44,963 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:19:44,964 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-acceleration/array_true-unreach-call1_true-termination.i [2019-01-14 17:19:45,024 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1021243c4/20410b1df31c4e86a1eddaa1ecf6e5b7/FLAGbc741ef8d [2019-01-14 17:19:45,415 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:19:45,415 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-acceleration/array_true-unreach-call1_true-termination.i [2019-01-14 17:19:45,420 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1021243c4/20410b1df31c4e86a1eddaa1ecf6e5b7/FLAGbc741ef8d [2019-01-14 17:19:45,817 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1021243c4/20410b1df31c4e86a1eddaa1ecf6e5b7 [2019-01-14 17:19:45,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:19:45,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:19:45,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:19:45,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:19:45,830 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:19:45,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:19:45" (1/1) ... [2019-01-14 17:19:45,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1596f3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:45, skipping insertion in model container [2019-01-14 17:19:45,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:19:45" (1/1) ... [2019-01-14 17:19:45,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:19:45,859 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:19:46,089 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:19:46,093 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:19:46,113 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:19:46,134 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:19:46,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46 WrapperNode [2019-01-14 17:19:46,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:19:46,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:19:46,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:19:46,136 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:19:46,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:19:46,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:19:46,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:19:46,175 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:19:46,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (1/1) ... [2019-01-14 17:19:46,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:19:46,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:19:46,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:19:46,201 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:19:46,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (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 17:19:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 17:19:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:19:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:19:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 17:19:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 17:19:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 17:19:46,569 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:19:46,569 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 17:19:46,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:19:46 BoogieIcfgContainer [2019-01-14 17:19:46,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:19:46,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:19:46,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:19:46,575 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:19:46,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:19:45" (1/3) ... [2019-01-14 17:19:46,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bc25ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:19:46, skipping insertion in model container [2019-01-14 17:19:46,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:19:46" (2/3) ... [2019-01-14 17:19:46,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23bc25ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:19:46, skipping insertion in model container [2019-01-14 17:19:46,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:19:46" (3/3) ... [2019-01-14 17:19:46,578 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call1_true-termination.i [2019-01-14 17:19:46,587 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:19:46,594 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:19:46,607 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:19:46,637 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:19:46,638 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:19:46,638 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:19:46,638 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:19:46,639 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:19:46,639 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:19:46,639 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:19:46,639 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:19:46,639 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:19:46,656 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-01-14 17:19:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:19:46,669 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:19:46,671 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:19:46,673 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:19:46,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:19:46,680 INFO L82 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times [2019-01-14 17:19:46,682 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:19:46,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:19:46,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:46,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:19:46,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:19:46,826 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 17:19:46,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:19:46,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 17:19:46,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 17:19:46,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 17:19:46,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:19:46,865 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2019-01-14 17:19:46,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:19:46,985 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2019-01-14 17:19:46,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 17:19:46,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-14 17:19:46,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:19:46,997 INFO L225 Difference]: With dead ends: 22 [2019-01-14 17:19:46,998 INFO L226 Difference]: Without dead ends: 10 [2019-01-14 17:19:47,000 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:19:47,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-14 17:19:47,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-01-14 17:19:47,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 17:19:47,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-01-14 17:19:47,030 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-01-14 17:19:47,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:19:47,031 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-01-14 17:19:47,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 17:19:47,031 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-01-14 17:19:47,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 17:19:47,032 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:19:47,032 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:19:47,032 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:19:47,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:19:47,033 INFO L82 PathProgramCache]: Analyzing trace with hash 265180975, now seen corresponding path program 1 times [2019-01-14 17:19:47,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:19:47,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:19:47,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:47,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:19:47,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:19:47,102 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 17:19:47,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:19:47,103 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 17:19:47,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:19:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:19:47,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:19:47,201 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 17:19:47,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:19:47,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-01-14 17:19:47,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 17:19:47,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 17:19:47,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:19:47,225 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2019-01-14 17:19:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:19:47,292 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-01-14 17:19:47,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:19:47,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-01-14 17:19:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:19:47,293 INFO L225 Difference]: With dead ends: 16 [2019-01-14 17:19:47,293 INFO L226 Difference]: Without dead ends: 12 [2019-01-14 17:19:47,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:19:47,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-14 17:19:47,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-01-14 17:19:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-14 17:19:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-01-14 17:19:47,297 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-01-14 17:19:47,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:19:47,297 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-01-14 17:19:47,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 17:19:47,298 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-01-14 17:19:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 17:19:47,298 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:19:47,299 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-01-14 17:19:47,299 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:19:47,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:19:47,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1489078833, now seen corresponding path program 2 times [2019-01-14 17:19:47,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:19:47,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:19:47,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:47,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:19:47,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:19:47,408 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 17:19:47,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:19:47,409 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 17:19:47,429 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 17:19:47,468 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-14 17:19:47,468 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:19:47,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:19:47,490 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 17:19:47,508 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:19:47,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-01-14 17:19:47,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 17:19:47,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 17:19:47,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:19:47,510 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2019-01-14 17:19:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:19:47,614 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-14 17:19:47,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 17:19:47,615 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-01-14 17:19:47,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:19:47,615 INFO L225 Difference]: With dead ends: 18 [2019-01-14 17:19:47,616 INFO L226 Difference]: Without dead ends: 14 [2019-01-14 17:19:47,616 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:19:47,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-14 17:19:47,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-01-14 17:19:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-14 17:19:47,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-01-14 17:19:47,620 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-01-14 17:19:47,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:19:47,620 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-01-14 17:19:47,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 17:19:47,620 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-01-14 17:19:47,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 17:19:47,621 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:19:47,621 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1] [2019-01-14 17:19:47,621 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:19:47,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:19:47,622 INFO L82 PathProgramCache]: Analyzing trace with hash 833881267, now seen corresponding path program 3 times [2019-01-14 17:19:47,622 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:19:47,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:19:47,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:47,623 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 17:19:47,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:19:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:19:47,864 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 17:19:47,864 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:19:47,864 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 17:19:47,884 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-14 17:19:47,900 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-01-14 17:19:47,900 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:19:47,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:19:47,943 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2019-01-14 17:19:47,947 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2019-01-14 17:19:47,947 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-14 17:19:47,958 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-14 17:19:47,968 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-01-14 17:19:47,968 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-01-14 17:19:48,150 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 17:19:48,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 17:19:48,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2019-01-14 17:19:48,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-14 17:19:48,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-14 17:19:48,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-01-14 17:19:48,169 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 10 states. [2019-01-14 17:19:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:19:50,651 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-01-14 17:19:50,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-01-14 17:19:50,651 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-01-14 17:19:50,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:19:50,652 INFO L225 Difference]: With dead ends: 18 [2019-01-14 17:19:50,652 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:19:50,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-01-14 17:19:50,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:19:50,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:19:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:19:50,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:19:50,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-01-14 17:19:50,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:19:50,656 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:19:50,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-14 17:19:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:19:50,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:19:50,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:19:50,766 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:19:50,766 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-01-14 17:19:50,767 INFO L444 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: (or (exists ((v_ULTIMATE.start_main_~i~0_12 Int)) (and (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0.base|) (+ |ULTIMATE.start_main_~#A~0.offset| (* 4 v_ULTIMATE.start_main_~i~0_12))) v_ULTIMATE.start_main_~i~0_12) (< v_ULTIMATE.start_main_~i~0_12 1024) (<= ULTIMATE.start_main_~i~0 (+ v_ULTIMATE.start_main_~i~0_12 1)))) (= ULTIMATE.start_main_~i~0 0)) [2019-01-14 17:19:50,767 INFO L448 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-01-14 17:19:50,767 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-01-14 17:19:50,767 INFO L451 ceAbstractionStarter]: At program point L3-2(lines 2 7) the Hoare annotation is: true [2019-01-14 17:19:50,767 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 17:19:50,768 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:19:50,768 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:19:50,768 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-01-14 17:19:50,768 INFO L448 ceAbstractionStarter]: For program point L8(lines 8 15) no Hoare annotation was computed. [2019-01-14 17:19:50,768 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-01-14 17:19:50,780 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,783 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,784 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,784 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,787 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:19:50,792 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,793 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,793 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,794 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,795 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:19:50,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:19:50 BoogieIcfgContainer [2019-01-14 17:19:50,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:19:50,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:19:50,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:19:50,803 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:19:50,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:19:46" (3/4) ... [2019-01-14 17:19:50,808 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:19:50,821 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-14 17:19:50,822 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:19:50,822 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:19:50,863 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_main_~i~0_12 : int :: (unknown-#memory_int-unknown[A][A + 4 * v_ULTIMATE.start_main_~i~0_12] == v_ULTIMATE.start_main_~i~0_12 && v_ULTIMATE.start_main_~i~0_12 < 1024) && i <= v_ULTIMATE.start_main_~i~0_12 + 1) || i == 0 [2019-01-14 17:19:50,889 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:19:50,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:19:50,891 INFO L168 Benchmark]: Toolchain (without parser) took 5066.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.4 MB in the beginning and 998.1 MB in the end (delta: -46.7 MB). Peak memory consumption was 85.9 MB. Max. memory is 11.5 GB. [2019-01-14 17:19:50,895 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:19:50,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.03 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. [2019-01-14 17:19:50,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.17 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. [2019-01-14 17:19:50,899 INFO L168 Benchmark]: Boogie Preprocessor took 25.54 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:19:50,903 INFO L168 Benchmark]: RCFGBuilder took 369.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:19:50,906 INFO L168 Benchmark]: TraceAbstraction took 4229.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.1 MB in the end (delta: 111.1 MB). Peak memory consumption was 111.1 MB. Max. memory is 11.5 GB. [2019-01-14 17:19:50,907 INFO L168 Benchmark]: Witness Printer took 87.89 ms. Allocated memory is still 1.2 GB. Free memory is still 998.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:19:50,915 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 309.03 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 39.17 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 25.54 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 369.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4229.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.1 MB in the end (delta: 111.1 MB). Peak memory consumption was 111.1 MB. Max. memory is 11.5 GB. * Witness Printer took 87.89 ms. Allocated memory is still 1.2 GB. Free memory is still 998.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant [2019-01-14 17:19:50,926 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,926 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,927 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,927 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,927 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:19:50,928 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,928 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,928 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,928 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_12,QUANTIFIED] [2019-01-14 17:19:50,928 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (\exists v_ULTIMATE.start_main_~i~0_12 : int :: (unknown-#memory_int-unknown[A][A + 4 * v_ULTIMATE.start_main_~i~0_12] == v_ULTIMATE.start_main_~i~0_12 && v_ULTIMATE.start_main_~i~0_12 < 1024) && i <= v_ULTIMATE.start_main_~i~0_12 + 1) || i == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 2.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 10 SDslu, 37 SDs, 0 SdLazy, 59 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 26 HoareAnnotationTreeSize, 2 FomulaSimplifications, 75 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 66 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 59 ConstructedInterpolants, 2 QuantifiedInterpolants, 1549 SizeOfPredicates, 9 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 19 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...