./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/array-multidimensional/copy-partial-3-u_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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/array-multidimensional/copy-partial-3-u_true-unreach-call.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 269d8c78f03cf287c7b740c1cbaca497af69bf0a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 16:04:35,384 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 16:04:35,386 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 16:04:35,403 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 16:04:35,404 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 16:04:35,405 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 16:04:35,406 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 16:04:35,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 16:04:35,411 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 16:04:35,413 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 16:04:35,416 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 16:04:35,416 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 16:04:35,417 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 16:04:35,418 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 16:04:35,421 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 16:04:35,422 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 16:04:35,424 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 16:04:35,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 16:04:35,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 16:04:35,441 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 16:04:35,442 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 16:04:35,443 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 16:04:35,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 16:04:35,449 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 16:04:35,450 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 16:04:35,451 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 16:04:35,453 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 16:04:35,456 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 16:04:35,460 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 16:04:35,461 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 16:04:35,462 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 16:04:35,465 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 16:04:35,467 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 16:04:35,467 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 16:04:35,468 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 16:04:35,469 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 16:04:35,471 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 16:04:35,500 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 16:04:35,503 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 16:04:35,504 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 16:04:35,504 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 16:04:35,507 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 16:04:35,509 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 16:04:35,510 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 16:04:35,510 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 16:04:35,510 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 16:04:35,511 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 16:04:35,511 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 16:04:35,511 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 16:04:35,511 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 16:04:35,511 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 16:04:35,511 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 16:04:35,514 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 16:04:35,514 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 16:04:35,514 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 16:04:35,514 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 16:04:35,515 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 16:04:35,515 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 16:04:35,515 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 16:04:35,515 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 16:04:35,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 16:04:35,516 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 16:04:35,516 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 16:04:35,516 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 16:04:35,516 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 16:04:35,516 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 16:04:35,517 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 16:04:35,518 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 -> 269d8c78f03cf287c7b740c1cbaca497af69bf0a [2018-11-28 16:04:35,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 16:04:35,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 16:04:35,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 16:04:35,607 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 16:04:35,607 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 16:04:35,608 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-multidimensional/copy-partial-3-u_true-unreach-call.i [2018-11-28 16:04:35,677 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/554b6e4e1/88182b843e4d4110892e443e12877bdc/FLAG67e5aa1fc [2018-11-28 16:04:36,147 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 16:04:36,148 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/array-multidimensional/copy-partial-3-u_true-unreach-call.i [2018-11-28 16:04:36,161 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/554b6e4e1/88182b843e4d4110892e443e12877bdc/FLAG67e5aa1fc [2018-11-28 16:04:36,502 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/554b6e4e1/88182b843e4d4110892e443e12877bdc [2018-11-28 16:04:36,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 16:04:36,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 16:04:36,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 16:04:36,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 16:04:36,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 16:04:36,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f203e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36, skipping insertion in model container [2018-11-28 16:04:36,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 16:04:36,543 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 16:04:36,749 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 16:04:36,753 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 16:04:36,781 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 16:04:36,805 INFO L195 MainTranslator]: Completed translation [2018-11-28 16:04:36,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36 WrapperNode [2018-11-28 16:04:36,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 16:04:36,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 16:04:36,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 16:04:36,807 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 16:04:36,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 16:04:36,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 16:04:36,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 16:04:36,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 16:04:36,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... [2018-11-28 16:04:36,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 16:04:36,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 16:04:36,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 16:04:36,893 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 16:04:36,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 16:04:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 16:04:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 16:04:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 16:04:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 16:04:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 16:04:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 16:04:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 16:04:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 16:04:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 16:04:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 16:04:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 16:04:37,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 16:04:37,510 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 16:04:37,513 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-11-28 16:04:37,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:04:37 BoogieIcfgContainer [2018-11-28 16:04:37,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 16:04:37,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 16:04:37,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 16:04:37,518 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 16:04:37,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:04:36" (1/3) ... [2018-11-28 16:04:37,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20685da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:04:37, skipping insertion in model container [2018-11-28 16:04:37,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:04:36" (2/3) ... [2018-11-28 16:04:37,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20685da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:04:37, skipping insertion in model container [2018-11-28 16:04:37,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:04:37" (3/3) ... [2018-11-28 16:04:37,522 INFO L112 eAbstractionObserver]: Analyzing ICFG copy-partial-3-u_true-unreach-call.i [2018-11-28 16:04:37,531 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 16:04:37,539 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 16:04:37,554 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 16:04:37,583 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 16:04:37,584 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 16:04:37,584 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 16:04:37,584 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 16:04:37,585 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 16:04:37,585 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 16:04:37,585 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 16:04:37,585 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 16:04:37,585 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 16:04:37,604 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-28 16:04:37,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 16:04:37,610 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:04:37,611 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:04:37,613 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:04:37,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:04:37,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1773460249, now seen corresponding path program 1 times [2018-11-28 16:04:37,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:04:37,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:04:37,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:37,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:37,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:37,705 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 16:04:37,705 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 16:04:37,705 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 16:04:37,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:04:37,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 16:04:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:04:37,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:04:37,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 16:04:37,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 16:04:37,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 16:04:37,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 16:04:37,836 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-28 16:04:37,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:04:37,861 INFO L93 Difference]: Finished difference Result 66 states and 103 transitions. [2018-11-28 16:04:37,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 16:04:37,863 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-28 16:04:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:04:37,872 INFO L225 Difference]: With dead ends: 66 [2018-11-28 16:04:37,872 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 16:04:37,876 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 16:04:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 16:04:37,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-28 16:04:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 16:04:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2018-11-28 16:04:37,917 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 17 [2018-11-28 16:04:37,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:04:37,917 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2018-11-28 16:04:37,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 16:04:37,918 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2018-11-28 16:04:37,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 16:04:37,919 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:04:37,919 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:04:37,919 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:04:37,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:04:37,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1763514787, now seen corresponding path program 1 times [2018-11-28 16:04:37,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:04:37,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:04:37,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:37,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:37,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:37,929 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 16:04:37,929 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 16:04:37,929 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 16:04:37,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:04:37,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 16:04:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:04:38,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:04:38,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 16:04:38,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 16:04:38,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 16:04:38,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:04:38,089 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand 3 states. [2018-11-28 16:04:38,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:04:38,253 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2018-11-28 16:04:38,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 16:04:38,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-28 16:04:38,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:04:38,260 INFO L225 Difference]: With dead ends: 56 [2018-11-28 16:04:38,260 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 16:04:38,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 16:04:38,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 16:04:38,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2018-11-28 16:04:38,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 16:04:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2018-11-28 16:04:38,274 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 17 [2018-11-28 16:04:38,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:04:38,274 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2018-11-28 16:04:38,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 16:04:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2018-11-28 16:04:38,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 16:04:38,276 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:04:38,276 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:04:38,276 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:04:38,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:04:38,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2133227694, now seen corresponding path program 1 times [2018-11-28 16:04:38,277 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:04:38,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:04:38,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:38,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:38,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:38,285 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 16:04:38,286 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 16:04:38,286 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 16:04:38,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:04:38,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 16:04:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:04:38,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:04:38,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 16:04:38,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 16:04:38,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 16:04:38,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 16:04:38,543 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 4 states. [2018-11-28 16:04:38,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:04:38,732 INFO L93 Difference]: Finished difference Result 72 states and 96 transitions. [2018-11-28 16:04:38,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 16:04:38,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-28 16:04:38,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:04:38,735 INFO L225 Difference]: With dead ends: 72 [2018-11-28 16:04:38,736 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 16:04:38,736 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 16:04:38,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 16:04:38,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 34. [2018-11-28 16:04:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 16:04:38,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-11-28 16:04:38,749 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 20 [2018-11-28 16:04:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:04:38,750 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-11-28 16:04:38,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 16:04:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-11-28 16:04:38,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 16:04:38,751 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:04:38,751 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:04:38,751 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:04:38,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:04:38,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1108398309, now seen corresponding path program 1 times [2018-11-28 16:04:38,752 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:04:38,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:04:38,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:38,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:38,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:38,760 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 16:04:38,760 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 16:04:38,760 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 16:04:38,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:04:38,829 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 16:04:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:04:38,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:04:38,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 16:04:38,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 16:04:38,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 16:04:38,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 16:04:38,910 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 4 states. [2018-11-28 16:04:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:04:39,061 INFO L93 Difference]: Finished difference Result 72 states and 94 transitions. [2018-11-28 16:04:39,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 16:04:39,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-28 16:04:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:04:39,064 INFO L225 Difference]: With dead ends: 72 [2018-11-28 16:04:39,064 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 16:04:39,065 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 16:04:39,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 16:04:39,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2018-11-28 16:04:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 16:04:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-28 16:04:39,079 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 23 [2018-11-28 16:04:39,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:04:39,079 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-28 16:04:39,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 16:04:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-28 16:04:39,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 16:04:39,081 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:04:39,081 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:04:39,081 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:04:39,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:04:39,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1602833213, now seen corresponding path program 1 times [2018-11-28 16:04:39,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:04:39,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:04:39,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:39,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:39,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:39,089 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 16:04:39,090 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 16:04:39,090 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 16:04:39,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:04:39,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 16:04:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 16:04:39,394 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-28 16:04:39,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-11-28 16:04:39,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 16:04:39,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 16:04:39,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 16:04:39,396 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 5 states. [2018-11-28 16:04:39,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:04:39,755 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2018-11-28 16:04:39,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 16:04:39,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-11-28 16:04:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:04:39,759 INFO L225 Difference]: With dead ends: 83 [2018-11-28 16:04:39,759 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 16:04:39,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 16:04:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 16:04:39,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 38. [2018-11-28 16:04:39,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 16:04:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-28 16:04:39,770 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2018-11-28 16:04:39,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:04:39,771 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-28 16:04:39,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 16:04:39,771 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-28 16:04:39,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 16:04:39,773 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:04:39,773 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:04:39,774 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:04:39,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:04:39,774 INFO L82 PathProgramCache]: Analyzing trace with hash 249553947, now seen corresponding path program 2 times [2018-11-28 16:04:39,775 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:04:39,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:04:39,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:39,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:39,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:39,783 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 16:04:39,783 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 16:04:39,783 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 16:04:39,809 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 16:04:39,830 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-28 16:04:39,830 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 16:04:39,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 16:04:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-28 16:04:39,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:04:39,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 16:04:39,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 16:04:39,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 16:04:39,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 16:04:39,959 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 4 states. [2018-11-28 16:04:40,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:04:40,175 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2018-11-28 16:04:40,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 16:04:40,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-28 16:04:40,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:04:40,183 INFO L225 Difference]: With dead ends: 74 [2018-11-28 16:04:40,183 INFO L226 Difference]: Without dead ends: 60 [2018-11-28 16:04:40,184 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 16:04:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-28 16:04:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 39. [2018-11-28 16:04:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-28 16:04:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2018-11-28 16:04:40,193 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 25 [2018-11-28 16:04:40,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:04:40,193 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2018-11-28 16:04:40,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 16:04:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2018-11-28 16:04:40,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 16:04:40,195 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:04:40,195 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:04:40,195 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:04:40,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:04:40,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1698801625, now seen corresponding path program 1 times [2018-11-28 16:04:40,196 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:04:40,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:04:40,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:40,197 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 16:04:40,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:40,203 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 16:04:40,203 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 16:04:40,203 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 16:04:40,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 16:04:40,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 16:04:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-28 16:04:40,342 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-28 16:04:40,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-11-28 16:04:40,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 16:04:40,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 16:04:40,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 16:04:40,344 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 6 states. [2018-11-28 16:04:40,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:04:40,531 INFO L93 Difference]: Finished difference Result 94 states and 121 transitions. [2018-11-28 16:04:40,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 16:04:40,532 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-11-28 16:04:40,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:04:40,537 INFO L225 Difference]: With dead ends: 94 [2018-11-28 16:04:40,537 INFO L226 Difference]: Without dead ends: 62 [2018-11-28 16:04:40,538 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 16:04:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-28 16:04:40,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 41. [2018-11-28 16:04:40,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 16:04:40,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-28 16:04:40,549 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 33 [2018-11-28 16:04:40,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:04:40,549 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-28 16:04:40,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 16:04:40,549 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-28 16:04:40,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 16:04:40,550 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 16:04:40,551 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 16:04:40,551 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 16:04:40,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 16:04:40,551 INFO L82 PathProgramCache]: Analyzing trace with hash -602786922, now seen corresponding path program 2 times [2018-11-28 16:04:40,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 16:04:40,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 16:04:40,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:40,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 16:04:40,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 16:04:40,558 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 16:04:40,558 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 16:04:40,558 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 16:04:40,572 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 16:04:40,591 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-28 16:04:40,591 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 16:04:40,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 16:04:40,648 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 51 treesize of output 47 [2018-11-28 16:04:40,664 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 47 treesize of output 3 [2018-11-28 16:04:40,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 16:04:40,693 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 16:04:40,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 16:04:40,716 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:51, output treesize:3 [2018-11-28 16:04:40,943 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-28 16:04:40,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 16:04:40,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 16:04:40,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 16:04:40,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 16:04:40,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 16:04:40,975 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 5 states. [2018-11-28 16:04:41,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 16:04:41,199 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2018-11-28 16:04:41,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 16:04:41,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-28 16:04:41,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 16:04:41,201 INFO L225 Difference]: With dead ends: 41 [2018-11-28 16:04:41,201 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 16:04:41,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 16:04:41,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 16:04:41,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 16:04:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 16:04:41,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 16:04:41,203 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-11-28 16:04:41,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 16:04:41,203 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 16:04:41,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 16:04:41,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 16:04:41,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 16:04:41,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 16:04:41,545 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 16:04:41,546 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 16:04:41,546 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 16:04:41,546 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 16:04:41,546 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 16:04:41,546 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 16:04:41,546 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 16:04:41,546 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 81) no Hoare annotation was computed. [2018-11-28 16:04:41,548 INFO L444 ceAbstractionStarter]: At program point L52-2(lines 52 55) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,548 INFO L448 ceAbstractionStarter]: For program point L52-3(lines 52 55) no Hoare annotation was computed. [2018-11-28 16:04:41,548 INFO L444 ceAbstractionStarter]: At program point L70-2(lines 70 77) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,548 INFO L448 ceAbstractionStarter]: For program point L70-3(lines 70 77) no Hoare annotation was computed. [2018-11-28 16:04:41,548 INFO L444 ceAbstractionStarter]: At program point L29-2(lines 29 36) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,548 INFO L448 ceAbstractionStarter]: For program point L29-3(lines 29 36) no Hoare annotation was computed. [2018-11-28 16:04:41,549 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 81) no Hoare annotation was computed. [2018-11-28 16:04:41,549 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 81) the Hoare annotation is: true [2018-11-28 16:04:41,549 INFO L444 ceAbstractionStarter]: At program point L47-2(lines 47 59) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,549 INFO L448 ceAbstractionStarter]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2018-11-28 16:04:41,549 INFO L444 ceAbstractionStarter]: At program point L72-2(lines 72 75) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,549 INFO L448 ceAbstractionStarter]: For program point L72-3(lines 72 75) no Hoare annotation was computed. [2018-11-28 16:04:41,549 INFO L444 ceAbstractionStarter]: At program point L31-2(lines 31 34) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,550 INFO L448 ceAbstractionStarter]: For program point L31-3(lines 31 34) no Hoare annotation was computed. [2018-11-28 16:04:41,550 INFO L444 ceAbstractionStarter]: At program point L73(line 73) the Hoare annotation is: (and (<= 500 main_~p~0) (= |main_#t~mem4| |main_#t~mem3|)) [2018-11-28 16:04:41,550 INFO L448 ceAbstractionStarter]: For program point L73-1(line 73) no Hoare annotation was computed. [2018-11-28 16:04:41,550 INFO L444 ceAbstractionStarter]: At program point L50-2(lines 50 57) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,550 INFO L448 ceAbstractionStarter]: For program point L50-3(lines 50 57) no Hoare annotation was computed. [2018-11-28 16:04:41,550 INFO L444 ceAbstractionStarter]: At program point L67-2(lines 67 79) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,550 INFO L448 ceAbstractionStarter]: For program point L67-3(lines 67 79) no Hoare annotation was computed. [2018-11-28 16:04:41,552 INFO L444 ceAbstractionStarter]: At program point L26-2(lines 26 38) the Hoare annotation is: (<= 500 main_~p~0) [2018-11-28 16:04:41,552 INFO L448 ceAbstractionStarter]: For program point L26-3(lines 26 38) no Hoare annotation was computed. [2018-11-28 16:04:41,552 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-28 16:04:41,552 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-28 16:04:41,552 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-28 16:04:41,552 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 16:04:41,553 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-28 16:04:41,553 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-28 16:04:41,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:04:41 BoogieIcfgContainer [2018-11-28 16:04:41,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 16:04:41,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 16:04:41,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 16:04:41,569 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 16:04:41,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:04:37" (3/4) ... [2018-11-28 16:04:41,575 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 16:04:41,581 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 16:04:41,582 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 16:04:41,582 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 16:04:41,587 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 16:04:41,588 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 16:04:41,588 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 16:04:41,588 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 16:04:41,652 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 16:04:41,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 16:04:41,653 INFO L168 Benchmark]: Toolchain (without parser) took 5147.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 952.7 MB in the beginning and 875.7 MB in the end (delta: 77.0 MB). Peak memory consumption was 204.4 MB. Max. memory is 11.5 GB. [2018-11-28 16:04:41,655 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 16:04:41,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.74 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 16:04:41,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.97 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 16:04:41,656 INFO L168 Benchmark]: Boogie Preprocessor took 54.18 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 16:04:41,657 INFO L168 Benchmark]: RCFGBuilder took 620.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 16:04:41,658 INFO L168 Benchmark]: TraceAbstraction took 4053.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.4 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. [2018-11-28 16:04:41,658 INFO L168 Benchmark]: Witness Printer took 83.76 ms. Allocated memory is still 1.2 GB. Free memory was 882.4 MB in the beginning and 875.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 16:04:41,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 298.74 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 30.97 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.18 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 620.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4053.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.4 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. * Witness Printer took 83.76 ms. Allocated memory is still 1.2 GB. Free memory was 882.4 MB in the beginning and 875.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 500 <= p - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 500 <= p - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 1 error locations. SAFE Result, 3.9s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 234 SDtfs, 175 SDslu, 298 SDs, 0 SdLazy, 217 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=7, 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, 8 MinimizatonAttempts, 84 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 22 PreInvPairs, 42 NumberOfFragments, 39 HoareAnnotationTreeSize, 22 FomulaSimplifications, 4772 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 194 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 7010 SizeOfPredicates, 22 NumberOfNonLiveVariables, 778 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 33/37 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...