./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-industry-pattern/aiob_4_true-unreach-call.c.v+lh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-industry-pattern/aiob_4_true-unreach-call.c.v+lh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c08ad01fb17039d4f6c07f5a5bde8b7195d83520 ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:43:58,758 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:43:58,760 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:43:58,771 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:43:58,772 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:43:58,773 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:43:58,774 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:43:58,776 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:43:58,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:43:58,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:43:58,780 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:43:58,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:43:58,781 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:43:58,782 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:43:58,784 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:43:58,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:43:58,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:43:58,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:43:58,790 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:43:58,792 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:43:58,793 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:43:58,794 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:43:58,797 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:43:58,797 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:43:58,797 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:43:58,798 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:43:58,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:43:58,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:43:58,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:43:58,802 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:43:58,803 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:43:58,804 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:43:58,804 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:43:58,804 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:43:58,805 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:43:58,805 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:43:58,806 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:43:58,821 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:43:58,822 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:43:58,823 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:43:58,823 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:43:58,823 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:43:58,823 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:43:58,824 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:43:58,824 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:43:58,824 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:43:58,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:43:58,824 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:43:58,824 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:43:58,826 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:43:58,826 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:43:58,826 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:43:58,826 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:43:58,827 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:43:58,827 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:43:58,827 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:43:58,827 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:43:58,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:43:58,828 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:43:58,829 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:43:58,829 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:43:58,829 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:43:58,829 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:43:58,829 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:43:58,830 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 -> c08ad01fb17039d4f6c07f5a5bde8b7195d83520 [2019-01-14 17:43:58,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:43:58,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:43:58,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:43:58,884 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:43:58,884 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:43:58,885 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-industry-pattern/aiob_4_true-unreach-call.c.v+lh-reducer.c [2019-01-14 17:43:58,941 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bed2cfd5/cefba562a0a741b29613d9a8006f6803/FLAG54aa8bab0 [2019-01-14 17:43:59,452 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:43:59,453 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-industry-pattern/aiob_4_true-unreach-call.c.v+lh-reducer.c [2019-01-14 17:43:59,462 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bed2cfd5/cefba562a0a741b29613d9a8006f6803/FLAG54aa8bab0 [2019-01-14 17:43:59,773 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bed2cfd5/cefba562a0a741b29613d9a8006f6803 [2019-01-14 17:43:59,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:43:59,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:43:59,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:43:59,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:43:59,783 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:43:59,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:43:59" (1/1) ... [2019-01-14 17:43:59,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d754c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:43:59, skipping insertion in model container [2019-01-14 17:43:59,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:43:59" (1/1) ... [2019-01-14 17:43:59,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:43:59,826 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:44:00,175 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:44:00,186 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:44:00,366 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:44:00,381 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:44:00,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00 WrapperNode [2019-01-14 17:44:00,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:44:00,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:44:00,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:44:00,382 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:44:00,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:44:00,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:44:00,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:44:00,461 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:44:00,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (1/1) ... [2019-01-14 17:44:00,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:44:00,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:44:00,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:44:00,524 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:44:00,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (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 17:44:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-14 17:44:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-01-14 17:44:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-14 17:44:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 17:44:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:44:00,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:44:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 17:44:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 17:44:01,358 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:44:01,359 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 17:44:01,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:44:01 BoogieIcfgContainer [2019-01-14 17:44:01,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:44:01,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:44:01,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:44:01,365 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:44:01,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:43:59" (1/3) ... [2019-01-14 17:44:01,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed79055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:44:01, skipping insertion in model container [2019-01-14 17:44:01,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:44:00" (2/3) ... [2019-01-14 17:44:01,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed79055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:44:01, skipping insertion in model container [2019-01-14 17:44:01,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:44:01" (3/3) ... [2019-01-14 17:44:01,370 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4_true-unreach-call.c.v+lh-reducer.c [2019-01-14 17:44:01,380 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:44:01,388 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:44:01,406 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:44:01,436 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:44:01,436 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:44:01,437 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:44:01,437 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:44:01,438 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:44:01,438 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:44:01,438 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:44:01,438 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:44:01,438 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:44:01,454 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-14 17:44:01,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 17:44:01,460 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:44:01,461 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:44:01,464 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:44:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:44:01,470 INFO L82 PathProgramCache]: Analyzing trace with hash 176653045, now seen corresponding path program 1 times [2019-01-14 17:44:01,472 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:44:01,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:44:01,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:44:01,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:44:01,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:44:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:44:01,948 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 17:44:01,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:44:01,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 17:44:01,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 17:44:01,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 17:44:01,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:44:01,973 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2019-01-14 17:44:02,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:44:02,131 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-01-14 17:44:02,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:44:02,133 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-01-14 17:44:02,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:44:02,149 INFO L225 Difference]: With dead ends: 32 [2019-01-14 17:44:02,149 INFO L226 Difference]: Without dead ends: 17 [2019-01-14 17:44:02,153 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:44:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-14 17:44:02,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2019-01-14 17:44:02,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-14 17:44:02,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-01-14 17:44:02,191 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2019-01-14 17:44:02,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:44:02,192 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-01-14 17:44:02,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 17:44:02,192 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-01-14 17:44:02,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-14 17:44:02,193 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:44:02,193 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:44:02,194 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:44:02,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:44:02,195 INFO L82 PathProgramCache]: Analyzing trace with hash -314667186, now seen corresponding path program 1 times [2019-01-14 17:44:02,195 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:44:02,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:44:02,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:44:02,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:44:02,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:44:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:44:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:44:02,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:44:02,454 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 17:44:02,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:44:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:44:02,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:44:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:44:02,799 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:44:02,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-01-14 17:44:02,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 17:44:02,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 17:44:02,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:44:02,802 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2019-01-14 17:44:03,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:44:03,044 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2019-01-14 17:44:03,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-14 17:44:03,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-01-14 17:44:03,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:44:03,046 INFO L225 Difference]: With dead ends: 25 [2019-01-14 17:44:03,046 INFO L226 Difference]: Without dead ends: 22 [2019-01-14 17:44:03,047 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:44:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-01-14 17:44:03,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2019-01-14 17:44:03,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-14 17:44:03,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-01-14 17:44:03,053 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 13 [2019-01-14 17:44:03,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:44:03,053 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-01-14 17:44:03,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 17:44:03,053 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-01-14 17:44:03,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-14 17:44:03,054 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:44:03,054 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-01-14 17:44:03,054 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:44:03,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:44:03,055 INFO L82 PathProgramCache]: Analyzing trace with hash 921588373, now seen corresponding path program 2 times [2019-01-14 17:44:03,055 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:44:03,055 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:44:03,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:44:03,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:44:03,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:44:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:44:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:44:03,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:44:03,322 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 17:44:03,333 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 17:44:03,469 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-14 17:44:03,469 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:44:03,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:44:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:44:03,740 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:44:03,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-01-14 17:44:03,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-14 17:44:03,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-14 17:44:03,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-01-14 17:44:03,741 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2019-01-14 17:44:04,645 WARN L181 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-14 17:44:04,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:44:04,812 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-01-14 17:44:04,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-14 17:44:04,815 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-01-14 17:44:04,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:44:04,816 INFO L225 Difference]: With dead ends: 30 [2019-01-14 17:44:04,816 INFO L226 Difference]: Without dead ends: 27 [2019-01-14 17:44:04,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-01-14 17:44:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-01-14 17:44:04,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2019-01-14 17:44:04,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-14 17:44:04,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-01-14 17:44:04,827 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 18 [2019-01-14 17:44:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:44:04,827 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-01-14 17:44:04,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-14 17:44:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-01-14 17:44:04,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-01-14 17:44:04,831 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:44:04,831 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2019-01-14 17:44:04,832 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:44:04,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:44:04,832 INFO L82 PathProgramCache]: Analyzing trace with hash -590838866, now seen corresponding path program 3 times [2019-01-14 17:44:04,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:44:04,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:44:04,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:44:04,835 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 17:44:04,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:44:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:44:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:44:05,296 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:44:05,296 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 17:44:05,314 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-14 17:44:05,586 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-01-14 17:44:05,586 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:44:05,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:44:05,694 WARN L307 Elim1Store]: Array PQE input equivalent to false [2019-01-14 17:44:05,694 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-01-14 17:44:05,743 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 15 [2019-01-14 17:44:05,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2019-01-14 17:44:05,758 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2019-01-14 17:44:05,765 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-14 17:44:05,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-01-14 17:44:05,775 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:62, output treesize:24 [2019-01-14 17:44:05,920 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-01-14 17:44:05,942 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:44:05,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-01-14 17:44:05,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-01-14 17:44:05,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-01-14 17:44:05,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-01-14 17:44:05,944 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 13 states. [2019-01-14 17:44:06,761 WARN L181 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2019-01-14 17:44:06,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:44:06,954 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-01-14 17:44:06,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-14 17:44:06,955 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-01-14 17:44:06,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:44:06,956 INFO L225 Difference]: With dead ends: 35 [2019-01-14 17:44:06,956 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:44:06,957 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2019-01-14 17:44:06,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:44:06,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:44:06,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:44:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:44:06,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-01-14 17:44:06,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:44:06,958 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:44:06,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-01-14 17:44:06,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:44:06,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:44:06,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:44:07,433 WARN L181 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2019-01-14 17:44:07,437 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:44:07,437 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 234) no Hoare annotation was computed. [2019-01-14 17:44:07,437 INFO L448 ceAbstractionStarter]: For program point L188(lines 188 206) no Hoare annotation was computed. [2019-01-14 17:44:07,437 INFO L448 ceAbstractionStarter]: For program point L219(line 219) no Hoare annotation was computed. [2019-01-14 17:44:07,438 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2019-01-14 17:44:07,438 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2019-01-14 17:44:07,438 INFO L448 ceAbstractionStarter]: For program point L180(lines 180 227) no Hoare annotation was computed. [2019-01-14 17:44:07,438 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 232) no Hoare annotation was computed. [2019-01-14 17:44:07,438 INFO L448 ceAbstractionStarter]: For program point L195(lines 195 205) no Hoare annotation was computed. [2019-01-14 17:44:07,438 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 17:44:07,438 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:44:07,438 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:44:07,442 INFO L444 ceAbstractionStarter]: At program point L200(lines 165 233) the Hoare annotation is: (let ((.cse0 (= 0 |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset|)) (.cse1 (= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492))))) (or (and .cse0 (= ~Id_MCDC_93~0 0) .cse1 (= 0 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0)) (let ((.cse3 (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296)) (.cse2 (mod (+ ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 4294967295) 4294967296))) (and (< .cse2 42) (< .cse3 42) .cse0 (not (= 492 (* 12 .cse3))) .cse1 (not (= (* 12 .cse2) 492)))) (and (<= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 .cse1 (<= 1 ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 3)))) [2019-01-14 17:44:07,444 INFO L451 ceAbstractionStarter]: At program point L231(lines 131 235) the Hoare annotation is: true [2019-01-14 17:44:07,454 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,455 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,455 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,460 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,461 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,461 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:44:07 BoogieIcfgContainer [2019-01-14 17:44:07,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:44:07,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:44:07,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:44:07,465 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:44:07,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:44:01" (3/4) ... [2019-01-14 17:44:07,469 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:44:07,485 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2019-01-14 17:44:07,486 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-14 17:44:07,487 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:44:07,488 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-14 17:44:07,700 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:44:07,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:44:07,701 INFO L168 Benchmark]: Toolchain (without parser) took 7924.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -78.6 MB). Peak memory consumption was 110.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:44:07,702 INFO L168 Benchmark]: CDTParser took 0.17 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 17:44:07,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2019-01-14 17:44:07,702 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:44:07,703 INFO L168 Benchmark]: Boogie Preprocessor took 63.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:44:07,703 INFO L168 Benchmark]: RCFGBuilder took 836.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2019-01-14 17:44:07,703 INFO L168 Benchmark]: TraceAbstraction took 6103.15 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -78.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:44:07,704 INFO L168 Benchmark]: Witness Printer took 235.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:44:07,706 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 602.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 836.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6103.15 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -78.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Witness Printer took 235.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. * 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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: 219]: 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: 131]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant [2019-01-14 17:44:07,711 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,711 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,712 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,713 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,713 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-01-14 17:44:07,713 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((0 == Id_MCDC_89__Id_MCDC_95 && Id_MCDC_93 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 == Id_MCDC_89__Id_MCDC_96) || ((((((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42 && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && 0 == Id_MCDC_89__Id_MCDC_95) && !(492 == 12 * ((Id_MCDC_93 + 4294967295) % 4294967296))) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && !(12 * ((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296) == 492))) || (((((Id_MCDC_89__Id_MCDC_96 <= 1 && 0 == Id_MCDC_89__Id_MCDC_95) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 1 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 6.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 104 SDslu, 58 SDs, 0 SdLazy, 221 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 47 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 97 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 159 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 116 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 12545 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1148 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 13/76 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...