./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:36:05,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:36:05,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:36:05,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:36:05,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:36:05,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:36:05,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:36:05,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:36:05,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:36:05,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:36:05,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:36:05,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:36:05,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:36:05,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:36:05,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:36:05,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:36:05,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:36:05,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:36:05,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:36:05,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:36:05,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:36:05,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:36:05,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:36:05,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:36:05,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:36:05,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:36:05,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:36:05,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:36:05,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:36:05,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:36:05,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:36:05,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:36:05,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:36:05,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:36:05,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:36:05,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:36:05,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:36:05,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:36:05,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:36:05,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:36:05,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:36:05,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-24 10:36:05,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:36:05,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:36:05,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:36:05,616 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:36:05,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:36:05,617 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:36:05,617 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:36:05,617 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:36:05,617 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:36:05,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:36:05,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:36:05,619 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:36:05,620 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:36:05,620 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:36:05,620 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:36:05,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:36:05,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:36:05,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:36:05,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:36:05,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:36:05,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:36:05,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:36:05,623 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-24 10:36:05,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:36:05,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:36:05,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:36:05,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:36:05,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:36:05,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:36:05,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:36:05,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:36:05,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:36:05,628 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:36:05,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:36:05,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:36:05,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:36:05,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:36:05,629 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 [2021-10-24 10:36:05,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:36:06,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:36:06,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:36:06,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:36:06,012 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:36:06,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2021-10-24 10:36:06,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/data/94ad77753/38655e3e48fe4d35b45802689debe751/FLAGa3cd87ea7 [2021-10-24 10:36:06,670 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:36:06,671 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2021-10-24 10:36:06,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/data/94ad77753/38655e3e48fe4d35b45802689debe751/FLAGa3cd87ea7 [2021-10-24 10:36:07,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/data/94ad77753/38655e3e48fe4d35b45802689debe751 [2021-10-24 10:36:07,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:36:07,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:36:07,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:36:07,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:36:07,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:36:07,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a208e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07, skipping insertion in model container [2021-10-24 10:36:07,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:36:07,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:36:07,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:36:07,315 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:36:07,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:36:07,360 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:36:07,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07 WrapperNode [2021-10-24 10:36:07,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:36:07,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:36:07,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:36:07,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:36:07,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:36:07,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:36:07,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:36:07,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:36:07,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:36:07,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:36:07,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:36:07,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:36:07,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (1/1) ... [2021-10-24 10:36:07,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:36:07,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:36:07,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:36:07,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:36:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:36:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:36:07,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:36:07,884 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-24 10:36:07,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:36:07 BoogieIcfgContainer [2021-10-24 10:36:07,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:36:07,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:36:07,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:36:07,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:36:07,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:36:07" (1/3) ... [2021-10-24 10:36:07,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79157128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:36:07, skipping insertion in model container [2021-10-24 10:36:07,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:36:07" (2/3) ... [2021-10-24 10:36:07,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79157128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:36:07, skipping insertion in model container [2021-10-24 10:36:07,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:36:07" (3/3) ... [2021-10-24 10:36:07,911 INFO L111 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2021-10-24 10:36:07,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:36:07,918 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-24 10:36:07,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:36:07,984 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:36:07,984 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-24 10:36:08,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 10:36:08,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:36:08,041 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 10:36:08,042 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 10:36:08,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:36:08,049 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2021-10-24 10:36:08,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:36:08,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217690422] [2021-10-24 10:36:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:36:08,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:36:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:36:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:08,306 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:36:08,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217690422] [2021-10-24 10:36:08,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217690422] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:36:08,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:36:08,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 10:36:08,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493784809] [2021-10-24 10:36:08,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:36:08,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:36:08,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:36:08,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,348 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:36:08,456 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-10-24 10:36:08,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:36:08,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 10:36:08,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:36:08,471 INFO L225 Difference]: With dead ends: 33 [2021-10-24 10:36:08,472 INFO L226 Difference]: Without dead ends: 30 [2021-10-24 10:36:08,476 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-24 10:36:08,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-10-24 10:36:08,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.8) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-24 10:36:08,521 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2021-10-24 10:36:08,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:36:08,522 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-24 10:36:08,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,523 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-10-24 10:36:08,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 10:36:08,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:36:08,524 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 10:36:08,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:36:08,525 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 10:36:08,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:36:08,529 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2021-10-24 10:36:08,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:36:08,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465504612] [2021-10-24 10:36:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:36:08,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:36:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:36:08,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:08,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:36:08,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465504612] [2021-10-24 10:36:08,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465504612] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:36:08,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:36:08,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 10:36:08,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361918372] [2021-10-24 10:36:08,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:36:08,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:36:08,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:36:08,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,592 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:36:08,611 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2021-10-24 10:36:08,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:36:08,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 10:36:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:36:08,613 INFO L225 Difference]: With dead ends: 28 [2021-10-24 10:36:08,613 INFO L226 Difference]: Without dead ends: 26 [2021-10-24 10:36:08,614 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-24 10:36:08,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-24 10:36:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-10-24 10:36:08,620 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 5 [2021-10-24 10:36:08,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:36:08,621 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-24 10:36:08,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,622 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-10-24 10:36:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-24 10:36:08,622 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:36:08,623 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-24 10:36:08,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:36:08,623 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 10:36:08,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:36:08,624 INFO L82 PathProgramCache]: Analyzing trace with hash 29879476, now seen corresponding path program 1 times [2021-10-24 10:36:08,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:36:08,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754842303] [2021-10-24 10:36:08,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:36:08,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:36:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:36:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:08,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:36:08,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754842303] [2021-10-24 10:36:08,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754842303] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:36:08,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:36:08,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:36:08,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629025233] [2021-10-24 10:36:08,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:36:08,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:36:08,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:36:08,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,652 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:36:08,674 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2021-10-24 10:36:08,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:36:08,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-24 10:36:08,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:36:08,678 INFO L225 Difference]: With dead ends: 26 [2021-10-24 10:36:08,678 INFO L226 Difference]: Without dead ends: 25 [2021-10-24 10:36:08,679 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-24 10:36:08,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-10-24 10:36:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.6) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-10-24 10:36:08,690 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 5 [2021-10-24 10:36:08,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:36:08,691 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-10-24 10:36:08,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,691 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-10-24 10:36:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:36:08,693 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:36:08,693 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:36:08,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 10:36:08,694 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 10:36:08,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:36:08,695 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2021-10-24 10:36:08,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:36:08,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576460795] [2021-10-24 10:36:08,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:36:08,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:36:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:36:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:08,751 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:36:08,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576460795] [2021-10-24 10:36:08,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576460795] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:36:08,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:36:08,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:36:08,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101547678] [2021-10-24 10:36:08,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:36:08,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:36:08,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:36:08,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,756 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:36:08,801 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2021-10-24 10:36:08,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:36:08,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-24 10:36:08,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:36:08,809 INFO L225 Difference]: With dead ends: 52 [2021-10-24 10:36:08,810 INFO L226 Difference]: Without dead ends: 28 [2021-10-24 10:36:08,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-24 10:36:08,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-24 10:36:08,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-10-24 10:36:08,820 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2021-10-24 10:36:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:36:08,820 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-10-24 10:36:08,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,821 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2021-10-24 10:36:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:36:08,822 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:36:08,823 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:36:08,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 10:36:08,825 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 10:36:08,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:36:08,826 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2021-10-24 10:36:08,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:36:08,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414734566] [2021-10-24 10:36:08,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:36:08,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:36:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:36:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:08,879 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:36:08,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414734566] [2021-10-24 10:36:08,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414734566] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:36:08,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:36:08,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:36:08,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580328999] [2021-10-24 10:36:08,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:36:08,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:36:08,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:36:08,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,882 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:36:08,900 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-10-24 10:36:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:36:08,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-24 10:36:08,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:36:08,925 INFO L225 Difference]: With dead ends: 29 [2021-10-24 10:36:08,925 INFO L226 Difference]: Without dead ends: 27 [2021-10-24 10:36:08,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:08,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-24 10:36:08,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-24 10:36:08,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-10-24 10:36:08,937 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2021-10-24 10:36:08,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:36:08,938 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-10-24 10:36:08,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:08,938 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-10-24 10:36:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:36:08,939 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:36:08,939 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:36:08,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 10:36:08,939 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 10:36:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:36:08,940 INFO L82 PathProgramCache]: Analyzing trace with hash 926263822, now seen corresponding path program 1 times [2021-10-24 10:36:08,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:36:08,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828347140] [2021-10-24 10:36:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:36:08,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:36:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:36:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:09,021 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:36:09,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828347140] [2021-10-24 10:36:09,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828347140] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:36:09,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:36:09,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 10:36:09,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811861139] [2021-10-24 10:36:09,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:36:09,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:36:09,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:36:09,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:09,028 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:09,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:36:09,063 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2021-10-24 10:36:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:36:09,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-24 10:36:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:36:09,067 INFO L225 Difference]: With dead ends: 26 [2021-10-24 10:36:09,067 INFO L226 Difference]: Without dead ends: 25 [2021-10-24 10:36:09,068 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:36:09,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-24 10:36:09,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-10-24 10:36:09,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2021-10-24 10:36:09,073 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2021-10-24 10:36:09,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:36:09,073 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-10-24 10:36:09,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:09,074 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-10-24 10:36:09,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:36:09,075 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:36:09,075 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:36:09,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 10:36:09,076 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-24 10:36:09,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:36:09,076 INFO L82 PathProgramCache]: Analyzing trace with hash -248985325, now seen corresponding path program 1 times [2021-10-24 10:36:09,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:36:09,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157965914] [2021-10-24 10:36:09,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:36:09,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:36:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:36:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:09,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:36:09,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157965914] [2021-10-24 10:36:09,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157965914] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-24 10:36:09,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038136799] [2021-10-24 10:36:09,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:36:09,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:36:09,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:36:09,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:36:09,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-24 10:36:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:36:09,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:36:09,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:36:09,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:09,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:36:09,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:36:09,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038136799] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:36:09,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-24 10:36:09,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 8 [2021-10-24 10:36:09,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081203554] [2021-10-24 10:36:09,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:36:09,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:36:09,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:36:09,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:36:09,462 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:09,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:36:09,516 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2021-10-24 10:36:09,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:36:09,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 10:36:09,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:36:09,518 INFO L225 Difference]: With dead ends: 50 [2021-10-24 10:36:09,518 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:36:09,519 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:36:09,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:36:09,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:36:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:36:09,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-24 10:36:09,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:36:09,521 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:36:09,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:36:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:36:09,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:36:09,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:36:09,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:36:09,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:36:09,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:36:09,527 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:36:09,527 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:36:09,527 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:36:09,528 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:36:09,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:36:09,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:36:09,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 10:36:09,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:36:09,788 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-24 10:36:09,788 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 10:36:09,789 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-24 10:36:09,789 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-10-24 10:36:09,789 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 32) no Hoare annotation was computed. [2021-10-24 10:36:09,790 INFO L853 garLoopResultBuilder]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 2147483647) (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2021-10-24 10:36:09,790 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-24 10:36:09,790 INFO L857 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-10-24 10:36:09,791 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 33) no Hoare annotation was computed. [2021-10-24 10:36:09,792 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-10-24 10:36:09,793 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-24 10:36:09,793 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-24 10:36:09,793 INFO L857 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-10-24 10:36:09,793 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 10:36:09,794 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-10-24 10:36:09,794 INFO L857 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-10-24 10:36:09,794 INFO L857 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-10-24 10:36:09,794 INFO L857 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-10-24 10:36:09,795 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-24 10:36:09,795 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-24 10:36:09,795 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 25) no Hoare annotation was computed. [2021-10-24 10:36:09,795 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-10-24 10:36:09,801 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:36:09,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:36:09 BoogieIcfgContainer [2021-10-24 10:36:09,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:36:09,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:36:09,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:36:09,825 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:36:09,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:36:07" (3/4) ... [2021-10-24 10:36:09,831 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:36:09,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-24 10:36:09,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-24 10:36:09,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:36:09,913 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:36:09,914 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:36:09,916 INFO L168 Benchmark]: Toolchain (without parser) took 2903.01 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 60.9 MB in the beginning and 100.1 MB in the end (delta: -39.2 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:36:09,916 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 76.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:36:09,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.51 ms. Allocated memory is still 102.8 MB. Free memory was 60.7 MB in the beginning and 78.4 MB in the end (delta: -17.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:36:09,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.67 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 77.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:36:09,921 INFO L168 Benchmark]: Boogie Preprocessor took 38.05 ms. Allocated memory is still 102.8 MB. Free memory was 77.2 MB in the beginning and 76.3 MB in the end (delta: 928.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:36:09,923 INFO L168 Benchmark]: RCFGBuilder took 444.66 ms. Allocated memory is still 102.8 MB. Free memory was 76.0 MB in the beginning and 66.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:36:09,924 INFO L168 Benchmark]: TraceAbstraction took 1933.54 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 65.8 MB in the beginning and 103.3 MB in the end (delta: -37.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:36:09,925 INFO L168 Benchmark]: Witness Printer took 89.23 ms. Allocated memory is still 151.0 MB. Free memory was 103.3 MB in the beginning and 100.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:36:09,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 102.8 MB. Free memory is still 76.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 348.51 ms. Allocated memory is still 102.8 MB. Free memory was 60.7 MB in the beginning and 78.4 MB in the end (delta: -17.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.67 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 77.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.05 ms. Allocated memory is still 102.8 MB. Free memory was 77.2 MB in the beginning and 76.3 MB in the end (delta: 928.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 444.66 ms. Allocated memory is still 102.8 MB. Free memory was 76.0 MB in the beginning and 66.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1933.54 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 65.8 MB in the beginning and 103.3 MB in the end (delta: -37.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Witness Printer took 89.23 ms. Allocated memory is still 151.0 MB. Free memory was 103.3 MB in the beginning and 100.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1827.4ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 33.6ms, AutomataDifference: 408.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 46.7ms, InitialAbstractionConstructionTime: 12.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 100 SDtfs, 84 SDslu, 23 SDs, 0 SdLazy, 90 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 161.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 76.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 62.2ms AutomataMinimizationTime, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 1 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 19.1ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 19.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 22.4ms SsaConstructionTime, 120.5ms SatisfiabilityAnalysisTime, 556.6ms InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (y <= 2147483647 && x <= 2147483647) && 0 <= x + 2147483648 RESULT: Ultimate proved your program to be correct! [2021-10-24 10:36:09,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52fc802f-026e-4a07-abed-82c522e7cc8d/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...