./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer --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 6ee0c0bb9185005ad94b7785b09df595a41ce360 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:36,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:36,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:36,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:36,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:36,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:36,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:36,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:36,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:36,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:36,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:36,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:36,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:36,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:36,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:36,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:36,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:36,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:36,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:36,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:36,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:36,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:36,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:36,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:36,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:36,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:36,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:36,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:36,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:36,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:36,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:36,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:36,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:36,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:36,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:36,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:36,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:36,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:36,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:36,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:36,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:36,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:36,457 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:36,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:36,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:36,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:36,468 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:36,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:36,468 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:36,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:36,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:36,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:36,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:36,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:36,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:36,469 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:36,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:36,470 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:36,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:36,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:36,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:36,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:36,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:36,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:36,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:36,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:36,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:36,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:36,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:36,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:36,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer 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 -> 6ee0c0bb9185005ad94b7785b09df595a41ce360 [2019-10-22 08:58:36,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:36,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:36,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:36,518 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:36,519 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:36,519 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005.i [2019-10-22 08:58:36,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/data/be5d4879a/dea279fb5d234bcf87210beefd72ef14/FLAG216a3b68c [2019-10-22 08:58:36,959 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:36,960 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/sv-benchmarks/c/loop-lit/cggmp2005.i [2019-10-22 08:58:36,964 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/data/be5d4879a/dea279fb5d234bcf87210beefd72ef14/FLAG216a3b68c [2019-10-22 08:58:36,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/data/be5d4879a/dea279fb5d234bcf87210beefd72ef14 [2019-10-22 08:58:36,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:36,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:36,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:36,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:36,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:36,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:36" (1/1) ... [2019-10-22 08:58:36,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abd83c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:36, skipping insertion in model container [2019-10-22 08:58:36,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:36" (1/1) ... [2019-10-22 08:58:36,998 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:37,013 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:37,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:37,183 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:37,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:37,311 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:37,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37 WrapperNode [2019-10-22 08:58:37,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:37,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:37,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:37,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:37,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:37,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:37,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:37,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:37,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... [2019-10-22 08:58:37,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:37,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:37,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:37,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:37,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/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 [2019-10-22 08:58:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:37,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:37,574 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:37,575 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:58:37,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37 BoogieIcfgContainer [2019-10-22 08:58:37,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:37,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:37,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:37,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:37,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:36" (1/3) ... [2019-10-22 08:58:37,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ebf8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:37, skipping insertion in model container [2019-10-22 08:58:37,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:37" (2/3) ... [2019-10-22 08:58:37,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ebf8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:37, skipping insertion in model container [2019-10-22 08:58:37,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37" (3/3) ... [2019-10-22 08:58:37,585 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005.i [2019-10-22 08:58:37,594 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:37,600 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:37,610 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:37,631 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:37,632 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:37,632 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:37,632 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:37,632 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:37,633 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:37,633 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:37,633 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:37,646 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 08:58:37,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:58:37,650 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:37,651 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:58:37,652 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:37,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:37,657 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-10-22 08:58:37,664 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:37,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581628574] [2019-10-22 08:58:37,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:37,665 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:37,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:37,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581628574] [2019-10-22 08:58:37,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:37,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:37,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876456236] [2019-10-22 08:58:37,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:37,794 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:37,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:37,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:37,811 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2019-10-22 08:58:37,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:37,872 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-10-22 08:58:37,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:37,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-10-22 08:58:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:37,892 INFO L225 Difference]: With dead ends: 19 [2019-10-22 08:58:37,892 INFO L226 Difference]: Without dead ends: 7 [2019-10-22 08:58:37,895 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:37,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-10-22 08:58:37,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-10-22 08:58:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-10-22 08:58:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-10-22 08:58:37,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-10-22 08:58:37,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:37,962 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-10-22 08:58:37,962 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:58:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-10-22 08:58:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:58:37,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:37,963 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:58:37,963 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:37,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:37,964 INFO L82 PathProgramCache]: Analyzing trace with hash 925620370, now seen corresponding path program 1 times [2019-10-22 08:58:37,964 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:37,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580226146] [2019-10-22 08:58:37,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:37,965 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:37,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580226146] [2019-10-22 08:58:38,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443063089] [2019-10-22 08:58:38,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/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 [2019-10-22 08:58:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 08:58:38,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,127 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:38,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-10-22 08:58:38,128 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427374022] [2019-10-22 08:58:38,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:38,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:38,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:38,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:38,131 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-10-22 08:58:38,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:38,147 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-10-22 08:58:38,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:38,148 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-10-22 08:58:38,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:38,149 INFO L225 Difference]: With dead ends: 12 [2019-10-22 08:58:38,149 INFO L226 Difference]: Without dead ends: 8 [2019-10-22 08:58:38,150 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-10-22 08:58:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-10-22 08:58:38,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 08:58:38,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-10-22 08:58:38,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-10-22 08:58:38,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:38,153 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-10-22 08:58:38,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:38,153 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-10-22 08:58:38,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:58:38,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:38,154 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-10-22 08:58:38,355 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:38,355 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:38,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:38,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1368874232, now seen corresponding path program 2 times [2019-10-22 08:58:38,355 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:38,356 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596242371] [2019-10-22 08:58:38,356 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:38,356 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:38,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596242371] [2019-10-22 08:58:38,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552037686] [2019-10-22 08:58:38,400 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/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 [2019-10-22 08:58:38,419 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-22 08:58:38,419 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:38,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 08:58:38,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:38,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,465 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:38,465 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-10-22 08:58:38,465 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142124043] [2019-10-22 08:58:38,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:38,466 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:38,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:38,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:38,466 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2019-10-22 08:58:38,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:38,486 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-10-22 08:58:38,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:38,487 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-10-22 08:58:38,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:38,488 INFO L225 Difference]: With dead ends: 13 [2019-10-22 08:58:38,488 INFO L226 Difference]: Without dead ends: 9 [2019-10-22 08:58:38,488 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-10-22 08:58:38,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-10-22 08:58:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-10-22 08:58:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-10-22 08:58:38,490 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-10-22 08:58:38,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:38,491 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-10-22 08:58:38,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:38,491 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-10-22 08:58:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:58:38,491 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:38,491 INFO L380 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2019-10-22 08:58:38,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:38,692 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:38,693 INFO L82 PathProgramCache]: Analyzing trace with hash 516237138, now seen corresponding path program 3 times [2019-10-22 08:58:38,693 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:38,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049114532] [2019-10-22 08:58:38,693 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:38,693 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:38,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049114532] [2019-10-22 08:58:38,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085727307] [2019-10-22 08:58:38,740 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/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 [2019-10-22 08:58:38,777 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-22 08:58:38,777 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:38,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 08:58:38,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:38,901 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:38,901 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2019-10-22 08:58:38,901 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823164887] [2019-10-22 08:58:38,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 08:58:38,902 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:38,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 08:58:38,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:58:38,902 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 10 states. [2019-10-22 08:58:38,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:38,927 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-10-22 08:58:38,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:38,927 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2019-10-22 08:58:38,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:38,928 INFO L225 Difference]: With dead ends: 14 [2019-10-22 08:58:38,928 INFO L226 Difference]: Without dead ends: 10 [2019-10-22 08:58:38,928 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:58:38,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-10-22 08:58:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-10-22 08:58:38,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-10-22 08:58:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-10-22 08:58:38,931 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-10-22 08:58:38,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:38,931 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-10-22 08:58:38,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 08:58:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-10-22 08:58:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 08:58:38,932 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:38,932 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2019-10-22 08:58:39,133 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:39,133 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:39,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:39,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1174852536, now seen corresponding path program 4 times [2019-10-22 08:58:39,134 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:39,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710106296] [2019-10-22 08:58:39,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:39,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:39,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:39,255 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710106296] [2019-10-22 08:58:39,255 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854313178] [2019-10-22 08:58:39,256 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/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 [2019-10-22 08:58:39,279 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-22 08:58:39,279 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-22 08:58:39,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-22 08:58:39,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:39,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:58:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:39,322 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:39,322 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2019-10-22 08:58:39,322 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96626826] [2019-10-22 08:58:39,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 08:58:39,323 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:39,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 08:58:39,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:58:39,324 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2019-10-22 08:58:39,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:39,395 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-10-22 08:58:39,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:58:39,396 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2019-10-22 08:58:39,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:39,397 INFO L225 Difference]: With dead ends: 15 [2019-10-22 08:58:39,397 INFO L226 Difference]: Without dead ends: 11 [2019-10-22 08:58:39,398 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-22 08:58:39,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-10-22 08:58:39,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-10-22 08:58:39,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-22 08:58:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-10-22 08:58:39,400 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2019-10-22 08:58:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:39,401 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-10-22 08:58:39,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 08:58:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-10-22 08:58:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:39,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:39,401 INFO L380 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1] [2019-10-22 08:58:39,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:39,605 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:39,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:39,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2059024878, now seen corresponding path program 5 times [2019-10-22 08:58:39,606 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:39,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417236005] [2019-10-22 08:58:39,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:39,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:39,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:39,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417236005] [2019-10-22 08:58:39,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:39,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:39,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794228605] [2019-10-22 08:58:39,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:58:39,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:39,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:58:39,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:39,652 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2019-10-22 08:58:39,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:39,662 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-10-22 08:58:39,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:39,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-10-22 08:58:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:39,663 INFO L225 Difference]: With dead ends: 11 [2019-10-22 08:58:39,664 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:39,664 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:58:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:39,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:39,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:39,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:39,665 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-22 08:58:39,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:39,665 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:39,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:58:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:39,666 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:39,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:58:39,752 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:58:39,753 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-22 08:58:39,753 INFO L446 ceAbstractionStarter]: At program point L19(lines 10 20) the Hoare annotation is: true [2019-10-22 08:58:39,753 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 08:58:39,753 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:58:39,753 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:58:39,754 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (or (and (< 5 ULTIMATE.start_main_~j~0) (<= (+ ULTIMATE.start_main_~j~0 3) ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 6)) (and (<= ULTIMATE.start_main_~j~0 (+ ULTIMATE.start_main_~i~0 3)) (<= ULTIMATE.start_main_~i~0 5) (<= 8 ULTIMATE.start_main_~j~0)) (and (<= ULTIMATE.start_main_~i~0 1) (<= 10 ULTIMATE.start_main_~j~0) (<= ULTIMATE.start_main_~j~0 (+ ULTIMATE.start_main_~i~0 9))) (and (<= 9 ULTIMATE.start_main_~j~0) (<= ULTIMATE.start_main_~j~0 (+ ULTIMATE.start_main_~i~0 6)) (<= ULTIMATE.start_main_~i~0 3)) (and (<= 7 ULTIMATE.start_main_~j~0) (<= ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~i~0 7))) [2019-10-22 08:58:39,754 INFO L443 ceAbstractionStarter]: For program point L14-3(lines 14 17) no Hoare annotation was computed. [2019-10-22 08:58:39,754 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-22 08:58:39,754 INFO L446 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-10-22 08:58:39,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:39 BoogieIcfgContainer [2019-10-22 08:58:39,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:39,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:39,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:39,769 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:39,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:37" (3/4) ... [2019-10-22 08:58:39,772 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:39,783 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:58:39,783 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:58:39,816 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a8dab711-5c07-482b-ab90-29de8ca35ad0/bin/uautomizer/witness.graphml [2019-10-22 08:58:39,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:39,818 INFO L168 Benchmark]: Toolchain (without parser) took 2836.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -54.5 MB). Peak memory consumption was 111.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:39,818 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:39,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -209.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:39,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:39,820 INFO L168 Benchmark]: Boogie Preprocessor took 21.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:39,820 INFO L168 Benchmark]: RCFGBuilder took 206.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:39,821 INFO L168 Benchmark]: TraceAbstraction took 2191.62 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: 129.9 MB). Peak memory consumption was 129.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:39,821 INFO L168 Benchmark]: Witness Printer took 47.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:39,824 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -209.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 206.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2191.62 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: 129.9 MB). Peak memory consumption was 129.9 MB. Max. memory is 11.5 GB. * Witness Printer took 47.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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: 14]: Loop Invariant Derived loop invariant: (((((5 < j && j + 3 <= i) && j <= 6) || ((j <= i + 3 && i <= 5) && 8 <= j)) || ((i <= 1 && 10 <= j) && j <= i + 9)) || ((9 <= j && j <= i + 6) && i <= 3)) || ((7 <= j && j <= i) && i <= 7) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 5, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 1 SDslu, 44 SDs, 0 SdLazy, 104 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 61 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 1785 SizeOfPredicates, 9 NumberOfNonLiveVariables, 106 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 15/55 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...