./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b909ccf6f1c4cf06610031e778229605609d3376 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:43:48,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:43:48,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:43:48,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:43:48,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:43:48,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:43:48,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:43:48,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:43:48,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:43:48,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:43:48,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:43:48,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:43:48,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:43:48,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:43:48,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:43:48,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:43:48,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:43:48,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:43:48,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:43:48,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:43:48,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:43:48,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:43:48,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:43:48,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:43:48,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:43:48,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:43:48,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:43:48,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:43:48,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:43:48,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:43:48,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:43:48,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:43:48,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:43:48,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:43:48,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:43:48,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:43:48,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:43:48,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:43:48,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:43:48,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:43:48,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:43:48,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 20:43:48,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:43:48,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:43:48,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:43:48,587 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:43:48,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:43:48,587 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:43:48,587 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 20:43:48,587 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:43:48,588 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:43:48,588 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 20:43:48,588 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 20:43:48,588 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:43:48,588 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 20:43:48,589 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 20:43:48,589 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 20:43:48,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:43:48,590 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:43:48,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 20:43:48,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:43:48,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:43:48,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:43:48,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:43:48,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:43:48,591 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:43:48,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:43:48,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:43:48,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:43:48,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:43:48,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:43:48,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:43:48,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:43:48,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:43:48,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:43:48,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:43:48,593 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 20:43:48,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 20:43:48,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:43:48,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:43:48,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:43:48,594 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-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b909ccf6f1c4cf06610031e778229605609d3376 [2020-12-09 20:43:48,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:43:48,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:43:48,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:43:48,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:43:48,800 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:43:48,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2020-12-09 20:43:48,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/data/df1ce0f83/61d86be2a0a64df498b8ffa379e7585c/FLAG18fe2cb0a [2020-12-09 20:43:49,218 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:43:49,218 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2020-12-09 20:43:49,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/data/df1ce0f83/61d86be2a0a64df498b8ffa379e7585c/FLAG18fe2cb0a [2020-12-09 20:43:49,233 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/data/df1ce0f83/61d86be2a0a64df498b8ffa379e7585c [2020-12-09 20:43:49,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:43:49,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:43:49,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:43:49,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:43:49,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:43:49,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13378434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49, skipping insertion in model container [2020-12-09 20:43:49,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:43:49,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:43:49,372 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1126,1139] [2020-12-09 20:43:49,378 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1880,1893] [2020-12-09 20:43:49,382 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[2401,2414] [2020-12-09 20:43:49,385 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[3193,3206] [2020-12-09 20:43:49,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:43:49,393 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:43:49,404 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1126,1139] [2020-12-09 20:43:49,407 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1880,1893] [2020-12-09 20:43:49,409 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[2401,2414] [2020-12-09 20:43:49,412 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[3193,3206] [2020-12-09 20:43:49,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:43:49,423 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:43:49,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49 WrapperNode [2020-12-09 20:43:49,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:43:49,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:43:49,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:43:49,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:43:49,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:43:49,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:43:49,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:43:49,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:43:49,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... [2020-12-09 20:43:49,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:43:49,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:43:49,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:43:49,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:43:49,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/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 [2020-12-09 20:43:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 20:43:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:43:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:43:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:43:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 20:43:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 20:43:49,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:43:49,770 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 20:43:49,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:43:49 BoogieIcfgContainer [2020-12-09 20:43:49,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:43:49,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:43:49,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:43:49,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:43:49,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:43:49" (1/3) ... [2020-12-09 20:43:49,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108b545c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:43:49, skipping insertion in model container [2020-12-09 20:43:49,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:43:49" (2/3) ... [2020-12-09 20:43:49,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108b545c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:43:49, skipping insertion in model container [2020-12-09 20:43:49,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:43:49" (3/3) ... [2020-12-09 20:43:49,781 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+lhb-reducer.c [2020-12-09 20:43:49,795 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:43:49,798 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 20:43:49,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 20:43:49,826 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:43:49,826 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:43:49,826 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:43:49,826 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:43:49,826 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:43:49,827 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:43:49,827 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:43:49,827 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:43:49,837 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-12-09 20:43:49,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 20:43:49,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:43:49,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:43:49,841 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:43:49,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:43:49,846 INFO L82 PathProgramCache]: Analyzing trace with hash -238958999, now seen corresponding path program 1 times [2020-12-09 20:43:49,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:43:49,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691570668] [2020-12-09 20:43:49,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:43:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:43:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:49,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691570668] [2020-12-09 20:43:49,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:43:49,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:43:49,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692106931] [2020-12-09 20:43:49,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:43:49,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:43:49,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:43:49,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:43:49,997 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-12-09 20:43:50,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:43:50,020 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions. [2020-12-09 20:43:50,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:43:50,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-09 20:43:50,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:43:50,038 INFO L225 Difference]: With dead ends: 47 [2020-12-09 20:43:50,038 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 20:43:50,047 INFO L677 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 [2020-12-09 20:43:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 20:43:50,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-12-09 20:43:50,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-09 20:43:50,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-12-09 20:43:50,071 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 8 [2020-12-09 20:43:50,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:43:50,071 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-12-09 20:43:50,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:43:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2020-12-09 20:43:50,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 20:43:50,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:43:50,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:43:50,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 20:43:50,072 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:43:50,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:43:50,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1055861953, now seen corresponding path program 1 times [2020-12-09 20:43:50,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:43:50,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473044251] [2020-12-09 20:43:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:43:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:43:50,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:50,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473044251] [2020-12-09 20:43:50,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:43:50,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:43:50,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36415358] [2020-12-09 20:43:50,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:43:50,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:43:50,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:43:50,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:43:50,103 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 3 states. [2020-12-09 20:43:50,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:43:50,132 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2020-12-09 20:43:50,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:43:50,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 20:43:50,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:43:50,133 INFO L225 Difference]: With dead ends: 55 [2020-12-09 20:43:50,133 INFO L226 Difference]: Without dead ends: 34 [2020-12-09 20:43:50,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:43:50,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-09 20:43:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2020-12-09 20:43:50,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-09 20:43:50,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-12-09 20:43:50,138 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 9 [2020-12-09 20:43:50,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:43:50,138 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-12-09 20:43:50,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:43:50,138 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-12-09 20:43:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 20:43:50,138 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:43:50,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:43:50,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 20:43:50,139 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:43:50,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:43:50,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1125304774, now seen corresponding path program 1 times [2020-12-09 20:43:50,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:43:50,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821451595] [2020-12-09 20:43:50,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:43:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:43:50,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:50,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821451595] [2020-12-09 20:43:50,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:43:50,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 20:43:50,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946448890] [2020-12-09 20:43:50,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:43:50,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:43:50,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:43:50,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:43:50,174 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 4 states. [2020-12-09 20:43:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:43:50,202 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2020-12-09 20:43:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:43:50,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-09 20:43:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:43:50,204 INFO L225 Difference]: With dead ends: 48 [2020-12-09 20:43:50,204 INFO L226 Difference]: Without dead ends: 46 [2020-12-09 20:43:50,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:43:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-09 20:43:50,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 29. [2020-12-09 20:43:50,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 20:43:50,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-12-09 20:43:50,210 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2020-12-09 20:43:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:43:50,210 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-12-09 20:43:50,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:43:50,211 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-12-09 20:43:50,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 20:43:50,211 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:43:50,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:43:50,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 20:43:50,211 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:43:50,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:43:50,212 INFO L82 PathProgramCache]: Analyzing trace with hash -461793925, now seen corresponding path program 1 times [2020-12-09 20:43:50,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:43:50,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199075811] [2020-12-09 20:43:50,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:43:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:43:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:50,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199075811] [2020-12-09 20:43:50,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:43:50,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:43:50,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802857304] [2020-12-09 20:43:50,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:43:50,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:43:50,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:43:50,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:43:50,245 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2020-12-09 20:43:50,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:43:50,276 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2020-12-09 20:43:50,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:43:50,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-09 20:43:50,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:43:50,277 INFO L225 Difference]: With dead ends: 51 [2020-12-09 20:43:50,277 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 20:43:50,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:43:50,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 20:43:50,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-12-09 20:43:50,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-09 20:43:50,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2020-12-09 20:43:50,282 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 10 [2020-12-09 20:43:50,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:43:50,282 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-12-09 20:43:50,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:43:50,282 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2020-12-09 20:43:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 20:43:50,282 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:43:50,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:43:50,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 20:43:50,283 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:43:50,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:43:50,283 INFO L82 PathProgramCache]: Analyzing trace with hash 67089498, now seen corresponding path program 1 times [2020-12-09 20:43:50,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:43:50,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71461078] [2020-12-09 20:43:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:43:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:43:50,762 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 40 [2020-12-09 20:43:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:50,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71461078] [2020-12-09 20:43:50,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:43:50,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 20:43:50,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107832263] [2020-12-09 20:43:50,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 20:43:50,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:43:50,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 20:43:50,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-09 20:43:50,821 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 9 states. [2020-12-09 20:43:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:43:50,958 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2020-12-09 20:43:50,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 20:43:50,958 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-12-09 20:43:50,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:43:50,959 INFO L225 Difference]: With dead ends: 42 [2020-12-09 20:43:50,959 INFO L226 Difference]: Without dead ends: 26 [2020-12-09 20:43:50,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-12-09 20:43:50,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-09 20:43:50,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2020-12-09 20:43:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-09 20:43:50,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2020-12-09 20:43:50,963 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 15 [2020-12-09 20:43:50,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:43:50,963 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2020-12-09 20:43:50,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 20:43:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-12-09 20:43:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 20:43:50,964 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:43:50,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:43:50,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 20:43:50,964 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:43:50,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:43:50,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1399323306, now seen corresponding path program 1 times [2020-12-09 20:43:50,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:43:50,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965356787] [2020-12-09 20:43:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:43:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:43:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:51,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965356787] [2020-12-09 20:43:51,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:43:51,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:43:51,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186396723] [2020-12-09 20:43:51,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:43:51,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:43:51,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:43:51,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:43:51,003 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 6 states. [2020-12-09 20:43:51,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:43:51,046 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-12-09 20:43:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 20:43:51,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-09 20:43:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:43:51,047 INFO L225 Difference]: With dead ends: 39 [2020-12-09 20:43:51,047 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 20:43:51,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-09 20:43:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 20:43:51,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23. [2020-12-09 20:43:51,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-09 20:43:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-12-09 20:43:51,050 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-12-09 20:43:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:43:51,050 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-12-09 20:43:51,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:43:51,051 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-12-09 20:43:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 20:43:51,051 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:43:51,051 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:43:51,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 20:43:51,051 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:43:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:43:51,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1507348966, now seen corresponding path program 1 times [2020-12-09 20:43:51,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:43:51,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130952047] [2020-12-09 20:43:51,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:43:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:43:51,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:51,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130952047] [2020-12-09 20:43:51,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137632894] [2020-12-09 20:43:51,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/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 [2020-12-09 20:43:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:43:51,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 20:43:51,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:43:51,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:51,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:43:51,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:43:51,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1618052526] [2020-12-09 20:43:51,467 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2020-12-09 20:43:51,467 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 20:43:51,472 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 20:43:51,477 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 20:43:51,477 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 20:43:51,795 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 235 [2020-12-09 20:43:51,933 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-12-09 20:43:52,110 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 20:43:52,312 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2020-12-09 20:43:52,461 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-12-09 20:43:52,634 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2020-12-09 20:43:52,787 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-12-09 20:43:52,935 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-12-09 20:43:53,082 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-12-09 20:43:53,266 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2020-12-09 20:43:53,440 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2020-12-09 20:43:53,643 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-12-09 20:43:53,899 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96 [2020-12-09 20:43:54,299 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2020-12-09 20:43:54,434 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2020-12-09 20:43:54,652 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2020-12-09 20:43:54,881 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2020-12-09 20:43:54,883 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 20:43:54,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 20:43:54,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2020-12-09 20:43:54,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64107151] [2020-12-09 20:43:54,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 20:43:54,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:43:54,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 20:43:54,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2020-12-09 20:43:54,885 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2020-12-09 20:43:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:43:55,028 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-12-09 20:43:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:43:55,029 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-12-09 20:43:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:43:55,029 INFO L225 Difference]: With dead ends: 27 [2020-12-09 20:43:55,029 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 20:43:55,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2020-12-09 20:43:55,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 20:43:55,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 20:43:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 20:43:55,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 20:43:55,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-12-09 20:43:55,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:43:55,030 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 20:43:55,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 20:43:55,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 20:43:55,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 20:43:55,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-09 20:43:55,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 20:43:55,486 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-12-09 20:43:55,550 INFO L262 CegarLoopResult]: For program point L60(lines 60 93) no Hoare annotation was computed. [2020-12-09 20:43:55,550 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2020-12-09 20:43:55,550 INFO L258 CegarLoopResult]: At program point L151(lines 29 152) the Hoare annotation is: false [2020-12-09 20:43:55,551 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 20:43:55,551 INFO L258 CegarLoopResult]: At program point L119(lines 98 128) the Hoare annotation is: (let ((.cse5 (div ULTIMATE.start_main_~main__index2~0 4294967296)) (.cse6 (div ULTIMATE.start_main_~main__index1~0 4294967296))) (let ((.cse8 (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 .cse6))) (.cse9 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) (.cse7 (* 4294967296 .cse5)) (.cse10 (= |ULTIMATE.start_main_~#main__array~0.offset| 0))) (or (and (or (let ((.cse4 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0.base|))) (let ((.cse3 (select .cse4 (+ (* ULTIMATE.start_main_~main__index1~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse6 (- 17179869184))))) (.cse2 (select .cse4 (+ (* ULTIMATE.start_main_~main__index2~0 4) |ULTIMATE.start_main_~#main__array~0.offset| (* .cse5 (- 17179869184)))))) (let ((.cse1 (+ .cse3 (* 4294967296 (div .cse2 4294967296)))) (.cse0 (+ .cse2 (* 4294967296 (div .cse3 4294967296))))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))))) (<= (+ ULTIMATE.start_main_~main__index1~0 .cse7) .cse8)) (<= ULTIMATE.start_main_~main__index2~0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index1~0 (* (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) ULTIMATE.start_main_~main__index1~0 4294967294) 4294967296) (- 4294967296)) (- 1)) 4294967296)) 99998)) .cse9 .cse10) (and (<= (+ ULTIMATE.start_main_~main__index1~0 .cse7 1) .cse8) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) .cse9 (<= ULTIMATE.start_main_~main__index2~0 (+ .cse7 99999)) .cse10)))) [2020-12-09 20:43:55,551 INFO L265 CegarLoopResult]: At program point L194(lines 14 196) the Hoare annotation is: true [2020-12-09 20:43:55,551 INFO L262 CegarLoopResult]: For program point L62(lines 62 88) no Hoare annotation was computed. [2020-12-09 20:43:55,551 INFO L262 CegarLoopResult]: For program point L29(lines 29 152) no Hoare annotation was computed. [2020-12-09 20:43:55,551 INFO L258 CegarLoopResult]: At program point L87(lines 62 88) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)) (<= (+ ULTIMATE.start_main_~main__index1~0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)) 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (<= ULTIMATE.start_main_~main__index2~0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index1~0 (* (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) ULTIMATE.start_main_~main__index1~0 4294967294) 4294967296) (- 4294967296)) (- 1)) 4294967296)) 99998)) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1) (= |ULTIMATE.start_main_~#main__array~0.offset| 0)) [2020-12-09 20:43:55,551 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 167) no Hoare annotation was computed. [2020-12-09 20:43:55,551 INFO L262 CegarLoopResult]: For program point L21(lines 21 195) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L258 CegarLoopResult]: At program point L79(lines 46 139) the Hoare annotation is: (let ((.cse4 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (let ((.cse0 (<= (+ ULTIMATE.start_main_~main__index1~0 .cse4 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296))))) (.cse1 (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1)) (.cse2 (<= ULTIMATE.start_main_~main__index2~0 (+ .cse4 99999))) (.cse3 (= |ULTIMATE.start_main_~#main__array~0.offset| 0))) (or (and (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1) .cse0 .cse1 .cse2 .cse3) (and .cse0 (not (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~1 0)) .cse1 (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0)) .cse2 .cse3)))) [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L71(lines 71 80) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L258 CegarLoopResult]: At program point L146(lines 31 147) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~main__index2~0 4294967296)))) (and (= ULTIMATE.start_main_~main____CPAchecker_TMP_0~0 1) (<= (+ ULTIMATE.start_main_~main__index1~0 .cse0 1) (+ ULTIMATE.start_main_~main__index2~0 (* 4294967296 (div ULTIMATE.start_main_~main__index1~0 4294967296)))) (= ULTIMATE.start_main_~main__loop_entered~0 0) (<= ULTIMATE.start_main_~main__index2~0 (+ .cse0 99999)) (= |ULTIMATE.start_main_~#main__array~0.offset| 0))) [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L97(lines 97 132) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L31(lines 31 147) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L258 CegarLoopResult]: At program point L172(lines 26 185) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__index2~0 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__index1~0 (* (div (+ (* ULTIMATE.start_main_~main__index2~0 (- 1)) ULTIMATE.start_main_~main__index1~0 4294967294) 4294967296) (- 4294967296)) (- 1)) 4294967296)) 99998)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1) (= |ULTIMATE.start_main_~#main__array~0.offset| 0)) [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L40(lines 40 139) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L265 CegarLoopResult]: At program point L131(lines 97 132) the Hoare annotation is: true [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L156(lines 156 184) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L57(lines 57 133) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L24(lines 24 190) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L107(lines 107 120) no Hoare annotation was computed. [2020-12-09 20:43:55,552 INFO L262 CegarLoopResult]: For program point L165(lines 165 173) no Hoare annotation was computed. [2020-12-09 20:43:55,553 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 20:43:55,553 INFO L262 CegarLoopResult]: For program point L50(lines 50 138) no Hoare annotation was computed. [2020-12-09 20:43:55,553 INFO L262 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-12-09 20:43:55,553 INFO L262 CegarLoopResult]: For program point L158(lines 158 179) no Hoare annotation was computed. [2020-12-09 20:43:55,553 INFO L258 CegarLoopResult]: At program point L92(lines 60 93) the Hoare annotation is: false [2020-12-09 20:43:55,553 INFO L262 CegarLoopResult]: For program point L26(lines 26 185) no Hoare annotation was computed. [2020-12-09 20:43:55,553 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2020-12-09 20:43:55,553 INFO L262 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-12-09 20:43:55,553 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 20:43:55,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:43:55 BoogieIcfgContainer [2020-12-09 20:43:55,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:43:55,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:43:55,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:43:55,572 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:43:55,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:43:49" (3/4) ... [2020-12-09 20:43:55,575 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 20:43:55,585 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2020-12-09 20:43:55,585 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 20:43:55,586 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:43:55,586 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:43:55,632 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1e1ad86c-16c8-4363-bd59-6ba7326c8827/bin/utaipan/witness.graphml [2020-12-09 20:43:55,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:43:55,634 INFO L168 Benchmark]: Toolchain (without parser) took 6396.91 ms. Allocated memory was 109.1 MB in the beginning and 205.5 MB in the end (delta: 96.5 MB). Free memory was 84.7 MB in the beginning and 137.8 MB in the end (delta: -53.1 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:43:55,634 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 109.1 MB. Free memory was 74.1 MB in the beginning and 74.0 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:43:55,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.22 ms. Allocated memory is still 109.1 MB. Free memory was 84.5 MB in the beginning and 83.9 MB in the end (delta: 630.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:43:55,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.00 ms. Allocated memory is still 109.1 MB. Free memory was 83.9 MB in the beginning and 82.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:43:55,635 INFO L168 Benchmark]: Boogie Preprocessor took 18.19 ms. Allocated memory is still 109.1 MB. Free memory was 82.0 MB in the beginning and 80.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:43:55,635 INFO L168 Benchmark]: RCFGBuilder took 302.62 ms. Allocated memory is still 109.1 MB. Free memory was 80.8 MB in the beginning and 59.5 MB in the end (delta: 21.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:43:55,636 INFO L168 Benchmark]: TraceAbstraction took 5797.07 ms. Allocated memory was 109.1 MB in the beginning and 205.5 MB in the end (delta: 96.5 MB). Free memory was 59.2 MB in the beginning and 143.0 MB in the end (delta: -83.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:43:55,636 INFO L168 Benchmark]: Witness Printer took 60.93 ms. Allocated memory is still 205.5 MB. Free memory was 143.0 MB in the beginning and 137.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:43:55,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 109.1 MB. Free memory was 74.1 MB in the beginning and 74.0 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 186.22 ms. Allocated memory is still 109.1 MB. Free memory was 84.5 MB in the beginning and 83.9 MB in the end (delta: 630.9 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.00 ms. Allocated memory is still 109.1 MB. Free memory was 83.9 MB in the beginning and 82.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.19 ms. Allocated memory is still 109.1 MB. Free memory was 82.0 MB in the beginning and 80.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 302.62 ms. Allocated memory is still 109.1 MB. Free memory was 80.8 MB in the beginning and 59.5 MB in the end (delta: 21.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5797.07 ms. Allocated memory was 109.1 MB in the beginning and 205.5 MB in the end (delta: 96.5 MB). Free memory was 59.2 MB in the beginning and 143.0 MB in the end (delta: -83.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 60.93 ms. Allocated memory is still 205.5 MB. Free memory was 143.0 MB in the beginning and 137.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 167]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 42]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 109]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((main____CPAchecker_TMP_0 == 1 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) && main__array == 0) || (((((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && !(main____CPAchecker_TMP_0 == 0)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) && main__array == 0) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((main__index2 <= 4294967296 * ((main__index1 + (main__index2 * -1 + main__index1 + 4294967294) / 4294967296 * -4294967296 + -1) / 4294967296) + 99998 && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && main__array == 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((((unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) && unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] / 4294967296) <= unknown-#memory_int-unknown[main__array][main__index2 * 4 + main__array + main__index2 / 4294967296 * -17179869184] + 4294967296 * (unknown-#memory_int-unknown[main__array][main__index1 * 4 + main__array + main__index1 / 4294967296 * -17179869184] / 4294967296)) || main__index1 + 4294967296 * (main__index2 / 4294967296) <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && main__index2 <= 4294967296 * ((main__index1 + (main__index2 * -1 + main__index1 + 4294967294) / 4294967296 * -4294967296 + -1) / 4294967296) + 99998) && __VERIFIER_assert__cond == 1) && main__array == 0) || ((((main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296) && !(__VERIFIER_assert__cond == 0)) && __VERIFIER_assert__cond == 1) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) && main__array == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((!(main____CPAchecker_TMP_0 == 0) && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && main__index2 <= 4294967296 * ((main__index1 + (main__index2 * -1 + main__index1 + 4294967294) / 4294967296 * -4294967296 + -1) / 4294967296) + 99998) && __VERIFIER_assert__cond == 1) && main__array == 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((main____CPAchecker_TMP_0 == 1 && main__index1 + 4294967296 * (main__index2 / 4294967296) + 1 <= main__index2 + 4294967296 * (main__index1 / 4294967296)) && main__loop_entered == 0) && main__index2 <= 4294967296 * (main__index2 / 4294967296) + 99999) && main__array == 0 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 171 SDtfs, 203 SDslu, 185 SDs, 0 SdLazy, 153 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, 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, 7 MinimizatonAttempts, 47 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 19 NumberOfFragments, 411 HoareAnnotationTreeSize, 9 FomulaSimplifications, 687 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 134 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 22995 SizeOfPredicates, 4 NumberOfNonLiveVariables, 103 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3/6 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...